WO2022237649A1 - Dérivés aminoquinazoliniques exocycliques utiles en tant qu'inhibiteurs de kras - Google Patents

Dérivés aminoquinazoliniques exocycliques utiles en tant qu'inhibiteurs de kras Download PDF

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WO2022237649A1
WO2022237649A1 PCT/CN2022/091243 CN2022091243W WO2022237649A1 WO 2022237649 A1 WO2022237649 A1 WO 2022237649A1 CN 2022091243 W CN2022091243 W CN 2022091243W WO 2022237649 A1 WO2022237649 A1 WO 2022237649A1
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heterocyclyl
heterocyclylalkyl
compound
pharmaceutically acceptable
cycloalkyl
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PCT/CN2022/091243
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English (en)
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Jiping Fu
Yan Lou
Yongfeng SUN
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Nikang Therapeutics, Inc.
Shanghai Blueray Biopharma Co., Ltd.
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Publication of WO2022237649A1 publication Critical patent/WO2022237649A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00—Antineoplastic agents
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D519/00—Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups C07D453/00 or C07D455/00

Definitions

  • the present disclosure provides certain exocyclic amino quinazoline derivative compounds that inhibit certain K-Ras proteins and are therefore useful for the treatment of cancers mediated by such proteins. Also provided are pharmaceutical compositions containing such compounds and processes for preparing such compounds.
  • Kirsten Rat Sarcoma 2 Viral Oncogene Homolog (KRAS) gene is a prevalent oncogene that encodes a small GTPase transductor protein called K-Ras.
  • K-Ras can serve as a molecular switch by cyling between active GTP-bound and inactive GDP-bound forms (see Science 2001; 294: 1299–304. ) .
  • K-Ras signaling is activated by RAS guanine nucleotide exchange factors (GEFs) , e.g., Son of Sevenless homologue (SOS) protein, that facilitate the GDP to GTP exchange of K-Ras (see Curr Biol 2005; 15: 563–74. ) .
  • GEFs RAS guanine nucleotide exchange factors
  • SOS Son of Sevenless homologue
  • GAPs GTPase-activating proteins
  • K-Ras plays a crucial role in the regulation of cell proliferation, differentiation and survival by signaling through several major downstream pathways, including the MAPK, the PI3K and the Ral-GEFs pathways (see Lung Cancer 2018; 124: 53–64) , among them the MAPK pathway is the best characterized (see Mol. Cell Biol. 1995; 15: 6443–6453. ) .
  • K-Ras-GTP binds to and activates RAF kinases, which phosphorylates MEK and subsequently phosphorylates ERK. Phospho-ERK can further activate downstream cytosolic proteins and which then translocate to the nucleus to drive the expression of diverse genes, propagating the growth signal.
  • PI3K pathway is also involved in RAS-mediated tumorigenesis (see Cell 2007; 129: 957–968. ) .
  • PI3K phosphorylates PIP2 to form PIP3, activates PDK1 and then phosphorylates AKT.
  • pAKT yields phosphorylation of several physiological substrates, e.g., mTOR, FOXO and NF- ⁇ B that promote metabolism, cell-cycle progression, resistance to apoptosis, cell survival and migration.
  • the Ral-GEFs signaling pathway plays a key role in RAS-mediated oncogenesis as well (see Proc. Natl. Acad. Sci. U.S.A.
  • RALGDS The K-Ras effector, RALGDS, stimulates the RAS family RAL-A/B small GTPases for the subsequent signaling cascades. RALGDS can also promote the JNK pathway to stimulate transcription of pro-survival and cell-cycle progression genes for cell proliferation and survival.
  • KRAS gene is the most frequently mutated oncogene in human cancer. KRAS mutations are associated with poor clinical outcome and found at high frequency in pancreatic cancer ( ⁇ 90%) , colorectal cancer ( ⁇ 44%) and non-small-cell lung cancer (NSCLC) ( ⁇ 29%) (see Cancer Discov. 2021; 11: 1–16) . KRAS mutations are also present in breast cancer, liver cancer, biliary tract malignancies, endometrial cancer, cervical cancer, bladder cancer and myeloid leukemia.
  • K-Ras G12C offers special opportunity, because it harbors a non-native cysteine residue, which can act as nucleophile and therefore can be targeted by covelent attachment.
  • covelent inhibitors including AMG510, MRTX849, JNJ-74699157 and LY349944631, are in clinical trials for treating cancer patients with KRAS G12C mutation (see ACS Cent. Sci. 2020; 6: 1753-1761) . These compounds ocuppy a dynamic pocket in the switch II region of K-Ras thereby irreversibly locking K-Ras G12C in inactive GDP-bound state.
  • KRAS mutations including G12C, enrich predominantly active-state protein in cancer cells, sufficient residual GTPase activity and nucleotide cycling are required for effective inhibition of K-Ras by inactive state-selective drugs (see Cell 2020; 183 (4) : 850-859) .
  • Inhibitors of active form of K-Ras should be more effective at suppressing cell growth and survival, as well as less susceptible to adaptive resistance than inhibitors binding to its inactive form.
  • K-ras G12C mutant Compared to K-ras G12C mutant, other prevalent K-Ras mutant, such as G12D, does not contain non-native cysteine residue and cycles through inactive state at extremely low rate, thus making non-G12C mutant-specific drug discovery challenging.
  • U, V, and W are CH; or one or two of U, V, and W are N and the other of U, V, and W are CH;
  • ring A is cycloaminyl, bicycloaminyl, bridged cycloaminyl, or spiroaminyl;
  • R 1b is absent, alkyl, alkynyl, cycloalkyl, halo, haloalkyl, hydroxy, alkoxy, cyano, hydroxyalkyl, alkoxyalkyl, cyanoalkyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, aminocarbonylalkyl, alkylaminocarbonylalkyl, or dialkylaminocarbonylalkyl,
  • R 1c is absent, alkyl, halo, hydroxy, or cyano
  • R 2 is absent, deuterium, alkyl, alkenyl, alkynyl, halo, haloalkyl, alkoxy, hydroxy, or cyano, provided that, R 2 is absent when two of U, V, and W are N;
  • R 3 is absent, deuterium, alkyl, halo, haloalkyl, alkoxy, cycloalkyl, cycloalkyloxy, hydroxy, cyano, or monocyclic heterocyclyl optionally substituted with halo, alkoxy, hydroxy, or cyano;
  • R 4 is:
  • R 11 is hydrogen, alkyl, hydroxyalkyl, - (alkylene) -NR 12 R 13 (where alkylene is substituted with R a , R b , and R c , wherein R a , R b , and R c are each independently selected from hydrogen, alkyl, cycloalkyl, halo, haloalkyl, hydroxy, alkoxy, cyano, oxo, hydroxyalkyl, alkylamino, dialkylamino, dialkylaminocarbonylalkyl, aryl, heteroaryl, and heterocyclyl, R 12 is hydrogen or alkyl, and R 13 is hydrogen, alkyl, acyl, hydroxyalkyl, or heteroalkyl) , aryl, heteroaryl, heteroaralkyl, heterocyclyl, heterocyclylalkyl,
  • R 16 is hydrogen, deuterium, alkyl, halo, haloalkyl, cycloalkyl, bridged cycloalkyl, fused cycloalkyl, spiro cycloalkyl, heterocyclyl, bicyclic heterocyclyl, phosphinyl bicyclic heterocyclyl, bridged heterocyclyl, fused heterocyclyl, or spiro heterocyclyl; or
  • R 15 and R 16 together with the carbon atom to which are attached form cycloalkyl, bridged cycloalkyl, fused cycloalkyl, spiro cycloalkyl, heterocyclyl, bridged heterocyclyl, fused heterocyclyl, or spiro heterocyclyl, wherein:
  • R 5 is cycloalkyl, fused cycloalkyl, aryl, aralkyl, heteroaryl, or heteroaralkyl, wherein aryl, aryl in aralkyl, heteroaryl, and heteroaryl in heteroaralkyl are independently substituted with R aa , R bb , R cc and R dd wherein R aa and R bb are independently selected from hydrogen, alkyl, cycloalkyl, halo, haloalkyl, haloalkoxy, hydroxy, alkoxy, heteroalkyl, hydroxyalkyl, alkylcarbonyl, amino, and cyano, R cc is hydrogen, alkenyl, alkynyl, cyanoalkynyl, or halo, and R dd is hydrogen, alkyl, cycloalkyl, halo, haloalkyl, haloalkoxy, alkoxy, heteroalkyl, hydroxy
  • the compound of Formula (I) is not:
  • a pharmaceutical composition comprising a compound of Formula ( (I) (or any of the embodiments thereof described herein) or a pharmaceutically acceptable salt thereof and a pharmaceutically acceptable excipient.
  • a method of inhibiting K-Ras in particular K-Ras G12D and/or G12V, in a cell, comprising contacting the cell with a compound of Formula (I) (or any of the embodiments thereof described herein) .
  • the contacting is in vitro.
  • the contacting is in vivo.
  • a method of inhibiting cell proliferation in vitro or in vivo comprising contacting a cell with a compound of Formula (I) (or any of the embodiments thereof described herein) or a pharmaceutical composition thereof as disclosed herein.
  • the contacting is in vitro.
  • the contacting is in vivo.
  • a method of treating cancer in a patient preferably the patient is in need of such treatment, which method comprises administering to the patient, preferably a patient in need of such treatment, a therapeutically effective amount of a compound of Formula (I) (or any of the embodiments thereof described herein) or a pharmaceutically acceptable salt thereof or a a pharmaceutical composition thereof as disclosed herein.
  • a method of treating cancer associated with K-Ras in particular K-Ras G12D and/or G12V, in a patient, preferably the patient is in need of such treatment, which method comprises administering to the patient, preferably a patient in need of such treatment, a therapeutically effective amount of a compound of Formula (I) (or any of the embodiments thereof described herein) or a pharmaceutically acceptable salt thereof or a a pharmaceutical composition thereof as disclosed herein.
  • a compound of Formula (I) (or any embodiments thereof described herein) or a pharmaceutically acceptable salt thereof or a pharmaceutical composition thereof as disclosed herein for use as a medicament.
  • the medicament is useful for the treatment of cancer.
  • a compound of Formula (I) (or any embodiments thereof described herein) or a pharmaceutically acceptable salt thereof or a pharmaceutical composition thereof as disclosed herein for use in the treatment of cancer.
  • a compound of Formula (I) (or any embodiments thereof described herein) or a pharmaceutically acceptable salt thereof or a pharmaceutical composition thereof as disclosed herein for use in the treatment of cancers associated with KRas, in particular cancers associated with K-Ras G12D and/or G12V.
  • a compound of Formula (I) (or any embodiments thereof described herein) or a pharmaceutically acceptable salt thereof or a pharmaceutical composition thereof as disclosed herein for use in inhibiting K-Ras, in particular K-Ras G12D and/or G12V.
  • any of the aforementioned aspects involving the treatment of cancer are further embodiments comprising administering the compound of Formula (I) (or any embodiments thereof disclosed herein) , or a pharmaceutically acceptable salt thereof in combination with at least one additional anticancer agent.
  • the agents can be administered simultaneously or sequentially.
  • Alkyl means a linear saturated monovalent hydrocarbon radical of one to six carbon atoms or a branched saturated monovalent hydrocarbon radical of three to six carbon atoms, e.g., methyl, ethyl, propyl, 2-propyl, butyl, pentyl, and the like. It will be recognized by a person skilled in the art that the term “alkyl” may include “alkylene” groups.
  • Alkylene means a linear saturated divalent hydrocarbon radical of one to six carbon atoms or a branched saturated divalent hydrocarbon radical of three to six carbon atoms unless otherwise stated e.g., methylene, ethylene, propylene, 1-methylpropylene, 2-methylpropylene, butylene, pentylene, and the like.
  • Alkenyl means a linear monovalent hydrocarbon radical of two to six carbon atoms or a branched monovalent hydrocarbon radical of three to six carbon atoms containing a double bond e.g., ethenyl, propenyl, 2-propenyl, butenyl, pentenyl, and the like.
  • Alkynyl means a linear monovalent hydrocarbon radical of two to six carbon atoms or a branched monovalent hydrocarbon radical of three to six carbon atoms containing a triple bond e.g., ethynyl, propynyl, 2-propynyl, butynyl, and the like.
  • Alkylsulfonyl means a–SO 2 R radical where R is alkyl as defined above, e.g., methylsulfonyl, ethylsulfonyl, and the like.
  • Alkylamino means a–NHR radical where R is alkyl as defined above, e.g., methylamino, ethylamino, and the like.
  • Alkylaminocarbonyl means a–CONHR radical where R is alkyl as defined above, e.g., methylaminocarbonyl, ethylaminocarbonyl, and the like.
  • Alkylaminocarbonylalkyl means a– (alkylene) -CONHR radical where R alkyl and alkyene and alkyl are as defined above, e.g., methylaminocarbonylmethyl, ethylaminocarbonylmethyl, and the like.
  • Alkylsulfonyl means a-SO 2 R radical where R is alkyl as defined above, e.g., methylsulfonyl, ethylsulfonyl, and the like.
  • Alkylsulfonylalkyl means a– (alkylene) -SO 2 R radical where R is alkyl as defined above, e.g., methylsulfonylmethyl, ethylsulfonylmethyl, and the like.
  • Alkoxy means a-OR radical where R is alkyl as defined above, e.g., methoxy, ethoxy, propoxy, or 2-propoxy, n-, iso-, or tert-butoxy, and the like.
  • Alkoxyalkyl means a linear monovalent hydrocarbon radical of one to six carbon atoms or a branched monovalent hydrocarbon radical of three to six carbons substituted with at least one alkoxy group, such as one or two alkoxy groups, as defined above, e.g., 2-methoxyethyl, 1-, 2-, or 3-methoxypropyl, 2-ethoxyethyl, and the like.
  • Alkoxyalkyloxy means a-OR radical where R is alkoxyalkyl as defined above. Examples include, but are not limited to, 2-methoxyethyloxy, 1-, 2-, or 3-methoxypropyloxy, 2-ethoxyethyloxy, and the like.
  • the alkylidene group, methylidienyl is enclosed by the box which is indicated by the arrow.
  • alkoxyalkyldienyl group methoxethylidienyl
  • Alkoxycarbonyl means a–C (O) OR radical where R is alkyl as defined above, e.g., methoxycarbonyl, ethoxycarbonyl, and the like.
  • “Acyl” means a–C (O) R radical where R is alkyl, haloalkyl, cycloalkyl, optionally substituted phenyl, optionally substituted heteroaryl, or optionally substituted heterocyclyl, as defined herein, e.g., methylcarbonyl, ethylcarbonyl, benzoyl, trifluoromethylcarbonyl, cyclopropylcarbonyl, and the like.
  • R is alkyl
  • acyl is also referred to herein as alkylcarbonyl.
  • Aminoalkyl means a linear monovalent hydrocarbon radical of one to six carbon atoms or a branched monovalent hydrocarbon radical of three to six carbons substituted with –NR’R” where R’ and R” are independently hydrogen, alkyl, cycloalkyl, cycloalkylalkyl (wherein cycloalkyl and cycloalkyl ring in cycloalkylalkyl is optionally substituted with one, two, or three substituents independently selected from alkyl, hydroxyalkyl, haloalkyl, halo, hydroxy, alkoxy, -NH 2 , alkylamino, dialkylamino, and cyano) , hydroxyalkyl, alkoxyalkyl, alkylcarbonyl, optionally substituted aryl, optionally substituted heteroaryl, optionally substituted heteroaralkyl, optionally substituted heterocyclyl, or optionally substituted heterocyclylalkyl, each as defined herein,
  • Aminocarbonyl means—CONH 2 radical.
  • Aminocarbonylalkyl means a– (alkylene) -CONH 2 radical where alkyene is as defined above, e.g., aminocarbonylmethyl, aminocarbonylmethyl, and the like.
  • Aryl means a monovalent monocyclic or fused bicyclic aromatic hydrocarbon radical of 6 to 10 ring atoms e.g., phenyl or naphthyl.
  • Alkyl means a– (alkylene) -R radical where R is aryl as defined above. Examples include, but are not limited to, benzyl, phenethyl, and the like.
  • Bicycloaminyl means a saturated monovalent fused bicyclic ring of 5 to 10 ring atoms in which one ring atom is nitrogen and an additional ring atom can be a heteroatom independently selected from N, O, and S (O) n , where n is an integer from 0 to 2, the remaining ring atoms being C. Additionally, one or two ring carbon atoms of the bicycloaminyl group can optionally be replaced by a–CO-group. Representative examples include, but is not limited to, 3-azabicyclo [3.1.0] hexan-3-yl, 3-azabicyclo [4.1.0] heptan-3-yl, and the like.
  • Bicyclic heterocyclyl means a saturated monovalent fused bicyclic ring of 8 to 12 ring atoms in which one or two ring atoms are heteroatom independently selected from N, O, and S(O) n , where n is an integer from 0 to 2, the remaining ring atoms being C, unless stated otherwise. Additionally, one or two ring carbon atoms in the heterocyclyl ring can optionally be replaced by a–CO-group. More specifically the term bicyclic heterocyclyl includes, but is not limited to, hexahydro-1H-pyrrolizinyl, and the like.
  • Bicyclic heterocyclylalkyl means a– (alkylene) -R radical where R is bicyclic heterocyclyl as defined above. Examples include, but are not limited to, hexahydro-1H-pyrrolizinylmethyl, hexahydro-1H-pyrrolizinylethyl, and the like.
  • Bridged cycloalkyl means a saturated monocyclic ring having 5 to 8 ring carbon ring atoms in which two non-adjacent ring atoms are linked by a (CRR’) n group where n is 1 to 3 and R and R’ are independently H or methyl (also may be referred to herein as “bridging” group) .
  • bridged cycloalkyl is optionally substituted with one or two substituents independently selected from alkyl, halo, alkoxy, hydroxy, and cyano. Examples include, but are not limited to, bicyclo [1.1.1] pentyl, bicyclo [2.1.1] hexyl, bicyclo [2.2.2] -octyl, and the like.
  • “Bridged cycloaminyl” means a saturated monovalent monocyclic ring of 5 to 9 ring atoms in which one ring atom is nitrogen and in which two non-adjacent ring atoms are linked by a (CRR’) m1 group where m1 is 1 to 3 and R and R’ are independently H or methyl (also may be referred to herein as “bridging” group) and further wherein an additional ring atom of bridged cycloaminyl ring, including an atom in the bridging group, can be a heteroatom independently selected from N, O, and S (O) n , where n is an integer from 0 to 2, the remaining ring atoms being C.
  • bridged cycloaminyl includes, but is not limited to, 2-azabicyclo [2.2.1] heptan-2-yl, 3-azabicyclo [3.1.1] heptan-3-yl, 3-azabicyclo [3.2.1] octan-3-yl, and the like.
  • “Bridged heterocyclyl” means a saturated monocyclic ring having 5 to 9 ring carbon ring atoms in which two non-adjacent ring atoms are linked by a (CRR’) n1 group where n1 is 1 to 3 and R and R’ are independently H or methyl (also may be referred to herein as “bridging” group) and further wherein one or two ring carbon atoms, including an atom in the bridging group, is replaced by a heteroatom selected from N, O, and S (O) n, where n is an integer from 0 to 2.
  • Bridged heterocyclyl is optionally substituted with one or two substituents independently selected from alkyl, halo, alkoxy, hydroxy, and cyano.
  • Examples include, but are not limited to, 2-azabicyclo [2.2.2] octane, quinuclidine, 7-oxabicyclo [2.2.1] heptane, 1-azabicyclo [2.2.1] heptane, 2-azabicyclo [2.2.1] heptane, 3 ⁇ 2 -azabicyclo [3.1.0] hexane, and the like.
  • “Bridged heterocyclylalkyl” means a– (alkylene) -R radical where R is bridged heterocyclyl as defined above. Examples include, but are not limited to, 2-azabicyclo [2.2.2] -octylmethyl, 3 ⁇ 2 -azabicyclo [3.1.0] hexylethyl, and the like.
  • Cycloalkyl means a monocyclic saturated monovalent hydrocarbon radical of three to ten carbon atoms. Examples include, but are not limited to, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, and the like.
  • Cycloalkylene means a monocyclic saturated divalent hydrocarbon radical of three to ten carbon atoms. Examples include, but are not limited to, 1, 1-cyclopropylene, 1, 1-cyclobutylene, 1, 1-cyclopentylene, and the like.
  • Cycloalkylalkyl means a– (alkylene) -R radical where R is cycloalkyl as defined above. Examples include, but are not limited to, cyclopropylmethyl cyclobutylethyl, cyclopentylmethyl, cyclohexylmethyl, and the like.
  • Cycloalkyloxy means a-OR radical where R is cycloalkyl as defined above. Examples include, but are not limited to, cyclopropyloxy, cyclobutyloxy, cyclopentyloxy, cyclohexyloxy, and the like.
  • Cyanoalkyl means a linear monovalent hydrocarbon radical of one to six carbon atoms or a branched monovalent hydrocarbon radical of three to six carbons substituted with cyano e.g., cyanomethyl, cyanoethyl, and the like.
  • Cyanoalkynyl means an alkynyl radical as defined above where one of the hydrogen atom in the alkynyl chain is replace by a cyano. Examples include, but are not limited to, -C ⁇ C (CN) , -CH 2 C ⁇ C (CN) , and the like.
  • Carboxy means—COOH.
  • Cycloaminyl means a saturated monovalent monocyclic ring of 4 to 8 ring atoms in which one ring atom is nitrogen and an additional ring atom can be a heteroatom independently selected from N, O, and S (O) n , where n is an integer from 0 to 2, the remaining ring atoms being C. Additionally, one or two ring carbon atoms of the cycloaminyl group can optionally be replaced by a–CO-group.
  • cycloaminyl includes, but is not limited to, pyrrolidinyl, piperidinyl, homopiperidinyl, 2-oxopyrrolidinyl, 2-oxopiperidinyl, morpholinyl, piperazinyl, thiomorpholinyl, and the like.
  • Dialkylamino means a–NRR’ radical where R and R’ are independently alkyl as defined above, e.g., dimethylamino, methylethylamino, and the like.
  • Dialkylaminocarbonyl means a-CONR’R” radical where where R’ and R” are independently alkyl as defined herein, e.g., dimethylaminocarbonyl, ethylmethylaminocarbonyl, and the like.
  • Dialkylaminocarbonylalkyl means a– (alkylene) –CONR’R” radical where R’ and R” are independently alkyl as defined herein, e.g., dimethylaminocarbonylmethyl, dimethylaminocarbonylethyl, and the like.
  • “Fused bicyclic heterocyclyl” means an 8 to 10 membered bicyclic heterocyclyl as defined herein, where two adjacent ring atoms of the bicyclic heterocyclyl are fused to two adjacent ring members of phenyl or a five or six membered heteroaryl, each as defined herein, unless stated otherwise.
  • bicyclic heterocyclyl includes, but is not limited to, 2, 3-dihydro-1H-pyrrolo [2, 1-a] isoindol-9b (5H) -yl, 2, 3-dihydro-1H-pyrrolo [1, 2-a] indol-9a (9H) -yl, 1, 5, 6, 8-tetrahydropyrrolo [3, 2-a] pyrrolizin-3b (4H) -yl) methoxy) pyrido [4, 3-d] pyrimidin-7-yl, and the like.
  • “Fused bicyclic heterocyclylalkyl” means a– (alkylene) -R radical where R is fused bicyclic heterocyclyl as defined above. Examples include, but are not limited to, hexahydro-1H-pyrrolizinylmethyl, hexahydro-1H-pyrrolizinylethyl, 2, 3-dihydro-1H-pyrrolo [2, 1- a] isoindol-9b (5H) -ylmethyl, 2, 3-dihydro-1H-pyrrolo [1, 2-a] indol-9a (9H) -ylmethyl, and the like.
  • fused cycloalkyl as used herein, means cycloalkyl as defined above where two adjacent ring atoms of the cycloalkyl ring are fused to two adjacent ring members of phenyl or a five or six membered heteroaryl, each as defined herein, unless stated otherwise.
  • the fused heterocyclyl can be attached at any atom of the ring.
  • Non limiting examples of the fused cycloalkyl include bicyclo [4.1.0] hepta-1, 3, 5-triene, bicyclo [4.2.0] octa-1, 3, 5-triene, and the like.
  • “Fused heterocyclyl” as used herein means a saturated a heterocyclyl as defined herein where two adjacent ring atoms of the heterocyclyl ring are fused to two adjacent ring members of a cycloalkyl, phenyl or a five or six membered heteroaryl, each as defined herein, unless stated otherwise.
  • the nitrogen and sulfur atoms are optionally oxidized, and the nitrogen atom (s) are optionally quaternized and one or two carbon atoms of the fused ring atoms in the saturated monocyclic ring includes the two common ring vertices shared with the fused phenyl or five or six membered heteroaryl.
  • the fused heterocyclyl can be attached at any atom of the ring.
  • Non limiting examples of the fused heterocycloalkyl include 2, 3-dihydrobenzo [b] [1, 4] -dioxinyl, 2-oxabicyclo [3.1.0] hexanyl, indolin-2-one-1-yl, indolinyl, and the like.
  • “Fused heterocyclylalkyl” as used herein, means a– (alkylene) -R radical where R is fused heterocyclyl, as defined herein.
  • “Fused tricyclic heterocyclyl” means a saturated monovalent fused tricyclic ring of 9 to 16 ring atoms, preferably 10 to 14 ring atoms, in which one or two ring atoms are heteroatoms independently selected from N, O, and S (O) n , where n is an integer from 0 to 2, the remaining ring atoms being C, unless stated otherwise, and where two adjacent ring atoms of the tricyclic heterocyclyl (preferably two adjacent ring atoms of a ring other than the central ring of the tricyclic heterocyclyl) are fused to two adjacent ring members of cycloalkyl, phenyl or a five or six membered heteroaryl, each as defined herein, unless stated otherwise.
  • the term bicyclic heterocyclyl includes, but is not limited to, and the like.
  • “Fused tricyclic heterocyclylalkyl” means a– (alkylene) -R radical where R is fused tricyclic heterocyclyl as defined above. Examples include, but are not limited to, and the like.
  • Halo means fluoro, chloro, bromo, or iodo, preferably fluoro or chloro.
  • Haloalkyl means alkyl radical as defined above, which is substituted with one or more halogen atoms, e.g., one to five halogen atoms, such as fluorine or chlorine, including those substituted with different halogens, e.g., -CH 2 Cl, -CF 3 , -CHF 2 , -CH 2 CF 3 , -CF 2 CF 3 ,
  • fluoroalkenyl When the alkenyl is substituted with only fluoro, it can be referred to in this Application as fluoroalkenyl.
  • the group pointed to by the arrow is the haloalkenylidine group, difluoromethyldienyl.
  • Haloalkoxy means a–OR radical where R is haloalkyl as defined above e.g., -OCF 3 ,
  • R is haloalkyl where the alkyl is substituted with only fluoro, it is referred to in this Application as fluoroalkoxy.
  • Hydroalkyl means a linear monovalent hydrocarbon radical of one to six carbon atoms or a branched monovalent hydrocarbon radical of three to six carbons substituted with one or two hydroxy groups, provided that iftwo hydroxy groups are present they are not both on the same carbon atom.
  • Representative examples include, but are not limited to, hydroxymethyl, 2-hydroxy-ethyl, 2-hydroxypropyl, 3-hydroxypropyl, 1- (hydroxymethyl) -2-methylpropyl, 2-hydroxybutyl, 3-hydroxybutyl, 4-hydroxybutyl, 2, 3-dihydroxypropyl, 1- (hydroxymethyl) -2-hydroxyethyl, 2, 3-dihydroxybutyl, 3, 4-dihydroxybutyl and 2- (hydroxymethyl) -3-hydroxypropyl, preferably 2-hydroxyethyl, 2, 3-dihydroxypropyl, and 1- (hydroxymethyl) -2-hydroxyethyl.
  • Heteroalkyl mean alkyl radical as defined above wherein one or two carbon atoms are replaced by O, NR (R is H or alkyl) , or S, provided the heteroalkyl group is attached to the remainder of the molecule via a carbon atom, e.g., methoxymethyl, methylethylaminoethyl, and the like.
  • Heteroaryl means a monovalent monocyclic or fused bicyclic aromatic radical of 5 to 10 ring atoms, unless otherwise stated, where one or more, (in one embodiment, one, two, or three) , ring atoms are heteroatom selected from N, O, and S, the remaining ring atoms being carbon.
  • Representative examples include, but are not limited to, pyrrolyl, thienyl, thiazolyl, imidazolyl, furanyl, indolyl, isoindolyl, oxazolyl, isoxazolyl, benzothiazolyl, benzoxazolyl, quinolinyl, isoquinolinyl, pyridinyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazolyl, tetrazolyl, and the like.
  • the terms “heteroaryl” and “aryl” are mutually exclusive. When the heteroaryl ring contains 5-or 6 ring atoms it is also referred to herein as 5-or 6-membered heteroaryl.
  • Heteroaralkyl means a- (alkylene) -R radical where R is heteroaryl as defined above, e.g., pyridinylmethyl, and the like.
  • R is heteroaryl as defined above, e.g., pyridinylmethyl, and the like.
  • heteroaryl ring in heteroaralkyl contains 5-or 6 ring atoms it is also referred to herein as 5-or 6-membered heteroaralkyl.
  • Heterocyclyl means a saturated or unsaturated monovalent monocyclic group of 4 to 8 ring atoms in which one or two ring atoms are heteroatom independently selected from N, O, and S (O) n , where n is an integer from 0 to 2, the remaining ring atoms being C, unless stated otherwise. Additionally, one or two ring carbon atoms in the heterocyclyl ring can optionally be replaced by a–CO-group.
  • heterocyclyl includes, but is not limited to, pyrrolidinyl, piperidinyl, homopiperidinyl, 2-oxopyrrolidinyl, 2-oxopiperidinyl, morpholinyl, piperazinyl, tetrahydro-pyranyl, thiomorpholinyl, and the like.
  • the heterocyclyl ring is unsaturated it can contain one or two ring double bonds provided that the ring is not aromatic.
  • saturated heterocyclyl When the heterocyclyl ring is saturated, it is referred to herein as saturated heterocyclyl.
  • Heterocyclylalkyl or “heterocycloalkyl” means a– (alkylene) -R radical where R is heterocyclyl ring as defined above e.g., tetraydrofuranylmethyl, piperazinylmethyl, morpholinylethyl, and the like.
  • Optionally substituted aryl means aryl as defined above, that is optionally substituted with one, two, or three substituents independently selected from alkyl, hydroxyl, cycloalkyl, carboxy, alkoxycarbonyl, hydroxy, alkoxy, alkylsulfonyl, amino, alkylamino, dialkylamino, halo, haloalkyl, haloalkoxy, and cyano.
  • substituents independently selected from alkyl, hydroxyl, cycloalkyl, carboxy, alkoxycarbonyl, hydroxy, alkoxy, alkylsulfonyl, amino, alkylamino, dialkylamino, halo, haloalkyl, haloalkoxy, and cyano.
  • aryl is phenyl
  • optionally substituted aryl is referred to herein as optionally substituted phenyl.
  • Optionally substituted aralkyl means— (alkylene) -R where R is optionally substituted aryl as defined above.
  • Optionally substituted heteroaryl means heteroaryl as defined above that is optionally substituted with one, two, or three substituents independently selected from alkyl, alkylsulfonyl, hydroxyl, cycloalkyl, carboxy, alkoxycarbonyl, hydroxy, alkoxy, halo, haloalkyl, haloalkoxy, amino, alkylamino, dialkylamino, and cyano.
  • Optionally substituted heteroaralkyl means— (alkylene) -R where R is optionally substituted heteroaryl as defined above.
  • Optionally substituted heterocyclyl means heterocyclyl as defined above that is optionally substituted with one, two, or three substituents independently selected from alkyl, alkylsulfonyl, alkylcarbonyl, hydroxyl, cycloalkyl, cycloalkylalkyl, carboxy, alkoxycarbonyl, hydroxy, hydroxyalkyl, alkoxy, alkoxyalkyl, aminoalkyl, cyanoalkyl, halo, haloalkyl, haloalkoxy, and cyano, unless stated otherwise.
  • Optionally substituted heterocyclylalkyl means— (alkylene) -R where R is optionally substituted heterocyclyl as defined above.
  • Phosphinyl bicyclic heterocyclylalkyl means an– (alkylene) -R radical where R is phosphinyl bicyclic heterocyclyl as defined above. Examples include, but are not limited to, and the like.
  • Tricyclic heterocyclyl means a saturated monovalent fused tricyclic ring of 9 to 14, preferably 12 to 14, ring atoms in which one, two, or three ring atoms are heteroatom independently selected from N, O, and S (O) n , where n is an integer from 0 to 2, the remaining ring atoms being C, unless stated otherwise. Additionally, one or two ring carbon atoms in the heterocyclyl ring can optionally be replaced by a–CO-group.
  • the term bicyclic heterocyclyl includes, but is not limited to, and the like.
  • Tricyclic heterocyclylalkyl means a– (alkylene) -R radical where R is tricyclic heterocyclyl as defined above. Examples include, but are not limited to, and the like.
  • the present disclosure also includes protected derivatives of compounds of Formula (I) .
  • compounds of Formula (I) when compounds of Formula (I) contain groups such as hydroxy, carboxy, or any group containing a nitrogen atom (s) , these groups can be protected with suitable protecting groups.
  • suitable protecting groups A comprehensive list of suitable protective groups can be found in T. W. Greene, Protective Groups in Organic Synthesis, 5 th Ed., John Wiley&Sons, Inc. (2014) , the disclosure of which is incorporated herein by reference in its entirety.
  • the protected derivatives of compounds of the present disclosure can be prepared by methods well known in the art.
  • the present disclosure also includes polymorphic forms and deuterated forms of the compound of Formula (I) or a pharmaceutically acceptable salt thereof.
  • prodrug refers to a compound that is made more active in vivo.
  • Certain compounds Formula (I) may also exist as prodrugs, as described in Hydrolysis in Drug and Prodrug Metabolism: Chemistry, Biochemistry, and Enzymology (Testa, Bernard and Mayer, Joachim M. Wiley-VHCA, Zurich, Switzerland 2003) .
  • Prodrugs of the compounds described herein are structurally modified forms of the compound that readily undergo chemical changes under physiological conditions to provide the active compound. Prodrugs are often useful because, in some situations, they may be easier to administer than the compound, or parent drug. They may, for instance, be bioavailable by oral administration whereas the parent drug is not.
  • prodrug derivatives are known in the art, such as those that rely on hydrolytic cleavage or oxidative activation of the prodrug.
  • An example, without limitation, of a prodrug would be a compound which is administered as an ester (the “prodrug” ) , but then is metabolically hydrolyzed to the carboxylic acid, the active entity. Additional examples include peptidyl derivatives of a compound.
  • a “pharmaceutically acceptable salt” of a compound means a salt that is pharmaceutically acceptable and that possesses the desired pharmacological activity of the parent compound.
  • Such salts include:
  • acid addition salts formed with inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid, and the like; or formed with organic acids such as formic acid, acetic acid, propionic acid, hexanoic acid, cyclopentanepropionic acid, glycolic acid, pyruvic acid, lactic acid, malonic acid, succinic acid, malic acid, maleic acid, fumaric acid, tartaric acid, citric acid, benzoic acid, 3- (4-hydroxybenzoyl) benzoic acid, cinnamic acid, mandelic acid, methanesulfonic acid, ethanesulfonic acid, 1, 2-ethanedisulfonic acid, 2-hydroxyethanesulfonic acid, benzenesulfonic acid, 4-chlorobenzenesulfonic acid, 2-naphthalenesulfonic acid, 4-toluenesulfonic acid, camphorsulfonic
  • a metal ion e.g., an alkali metal ion, an alkaline earth ion, or an aluminum ion
  • organic base such as ethanolamine, diethanolamine, triethanolamine, tromethamine, N-methylglucamine, and the like.
  • the compounds of Formula (I) may have asymmetric centers.
  • Compounds of Formula (I) containing an asymmetrically substituted atom may be isolated in optically active or racemic forms.
  • Individual stereoisomers of compounds can be prepared synthetically from commercially available starting materials which contain chiral centers or by preparation of mixtures of enantiomeric products followed by separation such as conversion to a mixture of diastereomers followed by separation or recrystallization, chromatographic techniques, direct separation of enantiomers on chiral chromatographic columns, or any other appropriate method known in the art. All chiral, diastereomeric, all mixtures of chiral or diastereomeric forms, and racemic forms are within the scope of this disclosure, unless the specific stereochemistry or isomeric form is specifically indicated. It will also be understood by a person of ordinary skill in the art that when a compound is denoted as (R) stereoisomer, it may contain the corresponding (S) stereoisomer as an impurity and vice versa.
  • Certain compounds of Formula (I) can exist as tautomers and/or geometric isomers. All possible tautomers and cis and trans isomers, as individual forms and mixtures thereof are within the scope of this disclosure. Additionally, as used herein the term alkyl includes all the possible isomeric forms of said alkyl group albeit only a few examples are set forth. Furthermore, when the cyclic groups such as aryl is substituted, it includes all the positional isomers albeit only a few examples are set forth. Furthermore, all hydrates of a compound of Formula (I) are within the scope of this disclosure.
  • Certain compounds of Formula (I) can exist as atropisomers.
  • Atropisomers are stereoisomers arising because of hindered rotation about a single bond, where energy differences due to steric strain or other contributors create a barrier to rotation that is high enough to allow for isolation of individual conformers.
  • (R) atropisomer of a 1- (4- ( (1R, 5S, 8S) -8-amino-3-azabicyclo [3.2.1] octan-3-yl) pyrido [4, 3-d] pyrimidin-7-yl) -8-ethynylnaphthalen-2-ol compound and (S) atropisomer of a 1- (4- ( (1R, 5S, 8S) -8-amino-3-azabicyclo [3.2.1] octan-3-yl) pyrido [4, 3-d] pyrimidin-7-yl) -8-ethynylnaphthalen-2-ol compound refers to following compounds respectively:
  • the compounds of Formula (I) may also contain unnatural amounts of isotopes at one or more of the atoms that constitute such compounds.
  • Unnatural amounts of an isotope may be defined as ranging from the amount found in nature to an amount 100%of the atom in question that differ only in the presence of one or more isotopically enriched atoms.
  • Exemplary isotopes that can be incorporated into compounds of the present invention include isotopes of hydrogen, carbon, nitrogen, oxygen, phosphorus, sulfur, fluorine, chlorine, and iodine, such as 2 H, 3 H, 11 C, 13 C, 14 C, 13 N, 15 N, 15 O, 17 O, 18 O, 32 P, 33 P, 35 S, 18 F, 36 Cl, 123 I, and 125 1, respectively.
  • Isotopically labeled compounds e.g., those labeled with 3 H and 14 C
  • Tritiated (i.e., 3 H) and carbon-14 (i.e., 14 C) isotopes can be useful for their ease of preparation and detectability. Further, substitution with heavier isotopes such as deuterium (i.e., 2 H) may afford certain therapeutic advantages resulting from greater metabolic stability (e.g., increased in vivo half-life or reduced dosage requirements) .
  • substituents such as deuterium (i.e., 2 H)
  • substitution with heavier isotopes such as deuterium (i.e., 2 H) may afford certain therapeutic advantages resulting from greater metabolic stability (e.g., increased in vivo half-life or reduced dosage requirements) .
  • compounds of Formula (IA’) , (I’) , (I) , (IIA’) , (II’) , or (II) including in Tables 1 and2 below one or more hydrogen atoms are replaced by 2 H or 3 H, or one or more carbon atoms are replaced by 13 C-or
  • Positron emitting isotopes such as 15 O, 13 N, 11 C, and 15 F are useful for positron emission tomography (PET) studies to examine substrate receptor occupancy.
  • Isotopically labeled compounds can generally be prepared by following procedures analogous to those disclosed in the Schemes or in the Examples herein, by substituting an isotopically labeled reagent for a non-isotopically labeled reagent.
  • A“pharmaceutically acceptable carrier or excipient” means a carrier or an excipient that is useful in preparing a pharmaceutical composition that is generally safe, non-toxic and neither biologically nor otherwise undesirable, and includes a carrier or an excipient that is acceptable for veterinary use as well as human pharmaceutical use.
  • a pharmaceutically acceptable carrier/excipient includes both one and more than one such excipient.
  • “Spiro cycloalkyl” means a saturated bicyclic monovalent ring having 6 to 10 ring atoms in which the rings are connected through only one atom, the connecting atom is also called the spiroatom, most often a quaternary carbon ( “spiro carbon” ) . Unless stated otherwise, spiro cycloalkyl is optionally substituted with one or two substituents independently selected from alkyl, halo, alkoxy, hydroxy, and cyano.
  • Examples include, but are not limited to, Representative examples include, but are not limited to, spiro [3.3] heptan-2-yl, spiro [3.4] octan-6-yl, spiro [3.5] -nonan-7-yl, and the like.
  • “Spiroaminyl” means a saturated monovalent bicyclic ring of 6 to 12 ring atoms in which one ring atom is nitrogen and an additional ring atom can be a heteroatom independently selected from N, O, and S (O) n , where n is an integer from 0 to 2, the remaining ring atoms being C, and further wherein the two rings are connected through only one atom, the connecting atom is also called the spiroatom, most often a quaternary carbon ( "spiro carbon” ) .
  • spiro cycloaminyl include, 2-azaspiro [3.3] heptan-2-yl, 5-azaspiro [2.4] heptan-5-yl, 3-azaspiro [5.5] undecan-3-yl, 8-azaspiro [4.5] decan-8-yl, 6-azaspiro [3.4] octan-6-yl, 2-azaspiro [4.4] nonan-2-yl, but is not limited to, and the like.
  • “Spiro heterocyclyl” means a saturated bicyclic monovalent ring having 5 to 10 ring atoms in which one, two, or three ring atoms are heteroatom selected from N, O, and S (O) n, where n is an integer from 0 to 2, the remaining ring atoms being C and the rings are connected through only one atom, the connecting atom is also called the spiroatom, most often a quaternary carbon ( "spiro carbon” ) . Unless stated otherwise, spiroheterocyclyl is optionally substituted with one or two substituents independently selected from alkyl, halo, alkoxy, hydroxy, and cyano.
  • Representative examples include, but are not limited to, 2, 6-diazaspiro [3.3] hept-2-yl, 2, 6-diazaspiro [3.4] oct-6-yl, 2-azaspiro [3.4] oct-2-yl, 2-azaspiro [3.5] -non2-yl, 2, 7-diazaspiro [4.4] non-2-yl, and the like.
  • “Spiro heterocyclylalkyl” means a– (alkylene) -R radical where R is spiro heterocyclyl ring as defined above e.g., t2-azaspiro [3.4] octylmethyl, 2, 6-diazaspiro [3.3] hept-2-ylmethyl, 2, 6-diazaspiro [3.4] oct-2-ylethyl, 2, 6-diazaspiro [3.4] oct-6-ylethyl, and the like.
  • R 2 and R 3 groups are floating substituents and can replace the hydrogen atom of any one of U, V, and W of the portion of the quinazoline ring ring when U, V, and W are CH.
  • disease as used herein is intended to be generally synonymous, and is used interchangeably with, the terms “disorder, ” “syndrome, ” and “condition” (as in medical condition) , in that all reflect an abnormal condition of the human or animal body or of one of its parts that impairs normal functioning, is typically manifested by distinguishing signs and symptoms, and causes the human or animal to have a reduced duration or quality of life.
  • combination therapy means the administration of two or more therapeutic agents to treat a disease or disorder described in the present disclosure. Such administration encompasses co-administration of these therapeutic agents in a substantially simultaneous manner, such as in a single capsule having a fixed ratio of active ingredients or in multiple, separate capsules for each active ingredient. In addition, such administration also encompasses use of each type of therapeutic agent in a sequential manner. In either case, the treatment regimen will provide beneficial effects of the drug combination in treating the conditions or disorders described herein.
  • patient is generally synonymous with the term “subject” and includes all mammals including humans. Examples of patients include humans, livestock such as cows, goats, sheep, pigs, and rabbits, and companion animals such as dogs, cats, rabbits, and horses. Preferably, the patient is a human.
  • Treating” or “treatment” of a disease includes:
  • treating or treatment of a disease includes inhibiting the disease, i.e., delaying, arresting or reducing the development or severity of the disease or its clinical symptoms; or relieving the disease, i.e., causing regression of the disease or its clinical symptoms.
  • a “therapeutically effective amount” means the amount of a compound of the present disclosure or a pharmaceutically acceptable salt thereof that, when administered to a patient for treating a disease, is sufficient to affect such treatment for the disease.
  • the “therapeutically effective amount” will vary depending on the compound, the disease and its severity and the age, weight, etc., of the mammal to be treated.
  • the therapeutically effective amount of a K-ras inhibitor disclosed herein can be administered to the patient in a single dosage form or multiples thereof. For example, 600 mg dose of a K-ras inhibitor can be administered in a single 600 mg tablet or two 300 mg tablets.
  • inhibitors and “reducing, “ or any variation of these terms in relation of K-Ras G12D and/or G12V, includes any measurable decrease or complete inhibition to achieve a desired result. For example, there may be a decrease of about, at most about, or at least about 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, 99%, or more, or any range derivable therein, reduction of K-Ras G12D and/or G12V GTPase activity; a decrease of K-Ras G12D and/or G12V GTP binding affinity or an increase of G12D and/or G12V GDP binding affinity; an increase of GTP off rate or a decrease of GDP off rate; a decrease of signaling transduction molecules levels downstream in the K-Ras pathway, e.g., a decrease in pERK level; and/or a decrease of K
  • the present disclosure includes:
  • the compound of embodiment 1 or 1a, or a pharmaceutically acceptable salt thereof is wherein ring A is cycloaminyl.
  • the compound of embodiment 1 or 1a, or a pharmaceutically acceptable salt thereof, is wherein ring A is bridged cycloaminyl.
  • the compound of embodiment 1 or 1a, or a pharmaceutically acceptable salt thereof, is wherein ring A is spiroaminyl.
  • the compound of embodiment 1 or 1a, or a pharmaceutically acceptable salt thereof is wherein ring A is bicycloaminyl.
  • the compound of embodiment 1 or 1a, or a pharmaceutically acceptable salt thereof is wherein cycloaminyl is a ring of formula (a) : where X is CH, NH, O, or S, m is 0 to 3, and n is 0 to 2, provided m+n is not greater than 4.
  • the compound of embodiment 2, or a pharmaceutically acceptable salt thereof is wherein ring A is cycloaminyl according to formula (a) :
  • X is CH, O, or S
  • m is 0 to 2
  • n is 0 to 3, provided that m+n is not greater than 4.
  • the compound of embodiment 6 or 7, or a pharmaceutically acceptable salt thereof is wherein X is O or S, preferably O.
  • the compound of any one of embodiments 6 to 8, 9, and 10, or a pharmaceutically acceptable salt thereof is where m is 0 and n are each 0.
  • the compound of any one of embodiments 6 to 8, 9, and 10, or a pharmaceutically acceptable salt thereof is where m is 0 and n is 1.
  • the compound of any one of embodiments 6 to 8, 9, and 10, or a pharmaceutically acceptable salt thereof is where m is 0 and n is 2.
  • the compound of any one of embodiments 6 to 8, 9, and 10, or a pharmaceutically acceptable salt thereof is where m is 1 and n is 1.
  • the compound of any one of embodiments 6 to 8, 9, and 10, or a pharmaceutically acceptable salt thereof is where m is 1 and n is 2.
  • the compound of any one of embodiments 6 to 8, 9, and 10, or a pharmaceutically acceptable salt thereof is where m is 1 and n is 3.
  • the compound of embodiment 1 or 1a, or a pharmaceutically acceptable salt thereof is wherein bridged cycloaminyl is a ring of formula (b) :
  • n1 is 0 or 1
  • n2 is 1 or 2
  • X 1 is bond, CH, NH, O, or S.
  • the compound of embodiment 3, or a pharmaceutically acceptable salt thereof is wherein ring A is bridged cycloaminyl accordingly to formula (b) :
  • n1 is 0 or 1
  • n2 is 1 or 2
  • X 1 is a CH, O, or S.
  • the compound of embodiment 17, 18 or 19, or a pharmaceutically acceptable salt thereof is wherein X 1 is CH.
  • the compound of embodiment 17, 18 or 19, or a pharmaceutically acceptable salt thereof is wherein X 1 is NH, O, or S.
  • the compound of embodiment 17, 18 or 19, or a pharmaceutically acceptable salt thereof is wherein X 1 is a NH or O.
  • the compound of embodiment 1, 1a, 3, 17, 18, 19, or 20, or a pharmaceutically acceptable salt thereof is wherein bridged cycloaminyl is a ring of formula:
  • the compound of embodiment 1, 1a or 4, or a pharmaceutically acceptable salt thereof is wherein the spiroaminyl is a ring of formula (c) :
  • X is CH, O, or NH and m2, n3, p, and q are each 0 to 3, provided that m2+n3+p+q is not greater than 7.
  • the compound of embodiment 25, or a pharmaceutically acceptable salt thereof is wherein X 1 is CH.
  • the compound of embodiment 25, or a pharmaceutically acceptable salt thereof is wherein X 1 is O.
  • the compound of embodiment 1, 1a, 4, 25, or 26, or a pharmaceutically acceptable salt thereof is wherein spiroaminyl is a ring of formula:
  • each of the spiroaminyl is substituted with R 1a , R 1b , and R 1c .
  • the compound of embodiment 1, 1a, 4, 25, or 26, or a pharmaceutically acceptable salt thereof is wherein the spiroaminyl is a ring of formula:
  • each of the spiroaminyl is additionally substituted with R 1b and R 1c , preferably R 1b .
  • the compound of embodiment 1, 1a, or 5, or a pharmaceutically acceptable salt thereof is wherein the bicycloaminyl is a ring of formula (d) :
  • X 2 is CH, O, S, or NH and m3, n4, p1, and q2 are each 0 to 3, provided that m2+n3+p+q is not greater than 6 and the bicyclaminyl is substituted with R 1a , R 1b , and R 1c .
  • the compound of embodiment 30, or a pharmaceutically acceptable salt thereof is wherein X 2 is CH.
  • the compound of embodiment 30, or a pharmaceutically acceptable salt thereof is wherein X 2 is O.
  • the compound of embodiment 1, 1a, 5, 30, or 31, or a pharmaceutically acceptable salt thereof is wherein the bicycloaminyl is a ring of formula:
  • the compound of embodiment 1, 5, 30, or 31, or a pharmaceutically acceptable salt thereof is wherein the bicycloaminyl is a ring of formula:
  • the compound of any one of embodiments 1 to 33a, or a pharmaceutically acceptable salt thereof, is wherein R 1a is hydroxy.
  • the compound of any one of embodiments 1 to 33a, or a pharmaceutically acceptable salt thereof is wherein R 1a is-Q 1 -NR 6 R 7 .
  • the compound of any one of embodiments 1 to 33a and 35, or a pharmaceutically acceptable salt thereof, is wherein Q 1 is a bond or alkylene.
  • the compound of any one of embodiments 1 to 33a, 35, and 35a, or a pharmaceutically acceptable salt thereof is wherein R 1a is amino, aminomethyl, aminoethyl, methylamino, ethylamino, cyclopropylamino, aminocarbonyl, methoxycarbonylamino, cyanomethylamino, 2, 2, 2-trifluoroethylamino, acetylamino, methylsulfonylamino, piperidin-4-ylamino, tetrahydropyran-4-ylamino, oxetan-3-ylamino, imidazol-2-ylamino, or oxazol-2-ylamino.
  • the compound of any one of embodiments 1 to 33a, 35, and 35a, or a pharmaceutically acceptable salt thereof, is wherein R 1a is amino.
  • the compound of any one of embodiments 1 to 33a, 35, and 35a, or a pharmaceutically acceptable salt thereof is wherein R 1a is aminomethyl, methylamino, ethylamino, or cyclopropylamino, preferably aminomethyl.
  • the compound of any one of embodiments 1 to 33a, or a pharmaceutically acceptable salt thereof is wherein R 1a is-Q 2 -R 10 .
  • the compound of any one of embodiments 1 to 33a and41, or a pharmaceutically acceptable salt thereof is wherein R 1a is azetidin-1-yl, pyrrolidin-1-yl, piperidin-1-yl, piperazin-1-carbonyl, 2-methylimidazol-1-yl, 2-methyl-4, 5-dihydroimidazol-1-yl, morpholin-4-yl, 2-aminoimidazol-1-yl, 2-amino-4, 5-dihydroimidazol-1-yl, imidazol-2-yl, imidazole-1-yl, or4, 5-dihydroimidazol-1-yl.
  • the compound of any one of embodiments 1 to 42, or a pharmaceutically acceptable salt thereof is wherein R 1c is absent, hydroxy, cyano, or fluoro, preferably absent.
  • the compound of any one of embodiments 1 to 43, or a pharmaceutically acceptable salt thereof is wherein R 1b is absent, cyano, fluoro, methyl, ethyl, isopropyl, difluoromethyl, trifluoromethyl, fluoromethyl, cyclopropyl, hydroxy, methoxy, hydroxymethyl, methoxymethyl, cyanomethyl, dimethylcarbonyl, or dimethylcarbonylmethyl.
  • the compound of any one of embodiments 1 to 43, or a pharmaceutically acceptable salt thereof, is wherein R 1b is aminocarbonyl.
  • embodiment 46 the compound of embodiment 1 or 1a, or a pharmaceutically acceptable salt thereof, is wherein is:
  • embodiment 46a the compound of embodiment 1 or 1a, or a pharmaceutically acceptable salt thereof, is wherein is:
  • the compound of any one of embodiments 1 to 46a, or a pharmaceutically acceptable salt thereof has a structure of formula (Ia) as follows:
  • the compound of any one of embodiments 1 to 46a, or a pharmaceutically acceptable salt thereof has a structure of formula (Ib) as follows:
  • the compound of any one of embodiments 1 to 46a, or a pharmaceutically acceptable salt thereof has a structure of formula (Ic) as follows:
  • the compound of any one of embodiments 1 to 46a, or a pharmaceutically acceptable salt thereof has a structure of formula (Id) as follows:
  • the compound of any one of embodiments 1 to 46a, or a pharmaceutically acceptable salt thereof has a structure of formula (Ie) as follows:
  • the compound of any one of embodiments 1 to 51, or a pharmaceutically acceptable salt thereof is wherein Q is bond and R 5 is cycloalkyl, fused cycloalkyl, aryl, aralkyl, heteroaryl, or heteroaralkyl, wherein aryl, aryl in aralkyl, heteroaryl, and heteroaryl in heteroaralkyl are substituted with R aa , R bb , R cc and R dd wherein R aa and R bb are independently selected from hydrogen, alkyl, cycloalkyl, halo, haloalkyl, haloalkoxy, hydroxy, alkoxy, heteroalkyl, hydroxyalkyl, amino, and cyano, R cc is hydrogen, alkenyl, alkynyl, cyanoalkynyl, or halo, and R dd is hydrogen, alkyl, cycloalkyl, halo,
  • the compound of any one of embodiments 1 to 51, or a pharmaceutically acceptable salt thereof is wherein Q is alkylene and R 5 is cycloalkyl, aryl, aralkyl, heteroaryl, or heteroaralkyl, wherein aryl, aryl in aralkyl, heteroaryl, and heteroaryl in heteroaralkyl are substituted with R aa , R bb , R cc and R dd wherein R aa and R bb are independently selected from hydrogen, alkyl, cycloalkyl, halo, haloalkyl, haloalkoxy, hydroxy, alkoxy, heteroalkyl, hydroxyalkyl, amino, and cyano, R cc is hydrogen or halo, and R dd is hydrogen, alkyl, cycloalkyl, halo, haloalkyl, haloalkoxy, alkoxy, heteroalkyl, hydroxyalkyl, amino, and cyan
  • the compound of any one of embodiments 1 to 51, or a pharmaceutically acceptable salt thereof is wherein Q is-C (O) -and R 5 is cycloalkyl, aryl, aralkyl, heteroaryl, or heteroaralkyl, wherein aryl, aryl in aralkyl, heteroaryl, and heteroaryl in heteroaralkyl are substituted with R aa , R bb , R cc and R dd wherein R aa and R bb are independently selected from hydrogen, alkyl, cycloalkyl, halo, haloalkyl, haloalkoxy, hydroxy, alkoxy, heteroalkyl, hydroxyalkyl, amino, and cyano, R cc is hydrogen or halo, and R dd is hydrogen, alkyl, cycloalkyl, halo, haloalkyl, haloalkoxy, alkoxy, heteroalkyl, haloalkyl,
  • the compound of any one of embodiments 1 to 51, or a pharmaceutically acceptable salt thereof is wherein R 5 is cycloalkyl, fused cycloalkyl, aryl, aralkyl, heteroaryl, or heteroaralkyl, wherein aryl, aryl in aralkyl, heteroaryl, and heteroaryl in heteroaralkyl are substituted with R aa , R bb , R cc and R dd wherein R aa and R bb are independently selected from hydrogen, alkyl, cycloalkyl, halo, haloalkyl, haloalkoxy, hydroxy, alkoxy, heteroalkyl, hydroxyalkyl, amino, and cyano, R cc is hydrogen, alkenyl, alkynyl, cyanoalkynyl, or halo, and R dd is hydrogen, alkyl, cycloalkyl, halo, haloalkyl, halo
  • the compound of any one of embodiments 1 to 51, or a pharmaceutically acceptable salt thereof is wherein Q is bond and R 5 is phenyl or naphthyl substituted with R aa , R bb , R cc and R dd .
  • the compound of any one of embodiments 1 to 51, or a pharmaceutically acceptable salt thereof is wherein Q is bond and R 5 is phenyl or naphthyl substituted with R aa , R bb , and R dd where R aa and R bb are independently selected from hydrogen, alkyl, halo, haloalkyl, hydroxy, alkoxy, haloalkoxy, cycloalkyl, amino, cyano, and hydroxyalkyl and R dd is hydrogen, alkyl, cycloalkyl, halo, haloalkyl, haloalkoxy, alkoxy, heteroalkyl, hydroxyalkyl, amino, cyano, optionally substituted aryl, optionally substituted heteroaryl, optionally substituted heterocyclyl, or optionally substituted heterocyclylalkyl.
  • the compound of any one of embodiments 1 to 56, or a pharmaceutically acceptable salt thereof is wherein R aa and R bb independently selected from hydrogen, methyl, ethyl, fluoro, chloro, trifluoromethyl, difluoromethyl, trifluoromethoxy, hydroxy, methyl, ethoxy, cyclopropyl, amino, cyano, and hydroxymethyl, R cc is hydrogen, ethynyl, 2-cyanoethyn-1-yl, or fluoro, and R dd is hydrogen, methyl, fluoro, amino, or cyclopropyl.
  • the compound of any one of embodiments 1 to 51, or a pharmaceutically acceptable salt thereof is wherein Q is bond and R 5 is heteroaryl substituted with R aa , R bb , R cc and R dd .
  • the compound of embodiment 1 to 51 and 59, or a pharmaceutically acceptable salt thereof is wherein Q is bond and R 5 is a monocyclic heteroaryl (e.g., pyridyl, pyrimidinyl) substituted with R aa , R bb , R cc and R dd .
  • R 5 is a monocyclic heteroaryl (e.g., pyridyl, pyrimidinyl) substituted with R aa , R bb , R cc and R dd .
  • the compound of embodiment 1 to 51 and 59, or a pharmaceutically acceptable salt thereof is wherein R 5 is Q is bond and R 5 is bicyclic heteroaryl (e, g, quinolinyl, isoquinolinyl, or indazolyl) , substituted with R aa , R bb , R cc and R dd .
  • R 5 is Q is bond and R 5 is bicyclic heteroaryl (e, g, quinolinyl, isoquinolinyl, or indazolyl) , substituted with R aa , R bb , R cc and R dd .
  • the compound of any one of embodiments 1 to 51 and 59 to 61, or a pharmaceutically acceptable salt thereof is wherein the heteroaryl is substituted with R aa , R bb , and R dd where R aa and R bb independently selected from hydrogen, alkyl, halo, haloalkyl, hydroxy, alkoxy, haloalkoxy, cycloalkyl, amino, cyano, and hydroxyalkyl and R dd is hydrogen, alkyl, cycloalkyl, halo, haloalkyl, haloalkoxy, alkoxy, heteroalkyl, hydroxyalkyl, amino, cyano, optionally substituted aryl, optionally substituted heteroaryl, optionally substituted heterocyclyl, or optionally substituted heterocyclylalkyl.
  • the compound of any one of embodiments 1 to 51 and 59 to 61, or a pharmaceutically acceptable salt thereof is wherein R aa and R bb are independently selected from hydrogen, methyl, ethyl, fluoro, chloro, trifluoromethyl, difluoromethyl, trifluoromethoxy, hydroxy, methyl, ethoxy, cyclopropyl, amino, cyano, and hydroxymethyl, R cc is hydrogen or fluoro, and R dd is hydrogen, methyl, fluoro, amino, or cyclopropyl.
  • the compound of any one of embodiments 1 to 64, or a pharmaceutically acceptable salt thereof is wherein R 2 is absent, halo, or alkyl, and R 3 is absent, halo, cycloalkyloxy, or alkyl.
  • the compound of any one of embodiments 1 to 65, or a pharmaceutically acceptable salt thereof is wherein R 2 is absent or chloro and R 3 is absent, fluoro, or cyclopropyloxy.
  • the compound of any one of embodiments 1 to 67, or a pharmaceutically acceptable salt thereof is wherein R 4 is-Z-R 11 where Z is a bond, O, NH, N (alkyl) , or S; and R 11 is alkyl, hydroxyalkyl, - (alkylene) -NR 12 R 13 (where alkylene is substituted with R a , R b , and R c independently selected from hydrogen, alkyl, cycloalkyl, halo, haloalkyl, hydroxy, alkoxy, cyano, oxo, hydroxyalkyl, alkylamino, dialkylamino, dialkylaminocarbonylalkyl, aryl, heteroaryl, and heterocyclyl, R 12 is hydrogen or alkyl, and R 13 is hydrogen, alkyl, acyl, hydroxyalkyl, or heteroalkyl) , aryl, heteroaryl, heteroaralkyl, heterocyclyl, R 12 is hydrogen or al
  • the compound of any one of the embodiments 1 to 68, or a pharmaceutically acceptable salt thereof, is wherein Z is O.
  • the compound of any one of the embodiments 1 to 68, or a pharmaceutically acceptable salt thereof, is wherein Z is NH.
  • the compound of any one of the embodiments 1 to 68, or a pharmaceutically acceptable salt thereof, is wherein Z is bond.
  • the compound of any one of embodiments 1 to 71, or a pharmaceutically acceptable salt thereof, is wherein R 11 is fused bicyclic heterocyclylalkyl.
  • the compound of any one of embodiments 1 to 71a, or a pharmaceutically acceptable salt thereof is wherein R d , R e , and R f are independently selected from hydrogen, alkenyl, and halo.
  • the compound of any one of embodiments 1 to 71, or a pharmaceutically acceptable salt thereof is wherein R 11 is hydroxyalkyl, - (alkylene) -NR 12 R 13 (where alkylene is substituted with R a , R b , and R c independently selected from hydrogen, alkyl, hydroxy, and hydroxyalkyl, R 12 is hydrogen or alkyl, and R 13 is hydrogen, alkyl, or hydroxyalkyl) , heteroaralkyl, heterocyclyl, heterocyclylalkyl, bicyclic heterocyclyl, bicyclic heterocyclylalkyl, bridged heterocyclylalkyl, fused heterocyclylalkyl, and spiro heterocyclylalkyl, wherein heterocyclyl, by itself or as part of heterocyclylalkyl, bicyclic heterocyclyl, by itself or as part of bicyclic heterocyclylalkyl, bridged heterocyclyl as part of bridged heterocyclyl, wherein heterocycly
  • the compound of any one of embodiments 1 to 71, or a pharmaceutically acceptable salt thereof is wherein R 11 is 2-dimethylaminoethyl, diethylaminoethyl, 3-methylaminoprop-2-yl, 3-dimethylaminopropyl, 3-dimethylaminoprop-2-yl, 4-dimethylaminobut-2-yl, 4-dimethylaminobut-3-yl, 4-dimethylaminobutyl, 2-dimethylamino-3-hydroxypropyl, 2-dimethylaminoprop-1-yl, 4-methylpiperazin-1-yl, 4- (2-hydroxyethyl) piperazin-1-yl, 4-methylpiperazin-2-yl) methyl, 3- (4-methylpiperazin-1-yl) propyl, 4-dimethylamino-piperidin-1-yl, 1-methylpiperidin-4-yl, piperidin-2-ylmethyl, 2-piperidin-1-
  • the compound of any one of embodiments 1 to 67, or a pharmaceutically acceptable salt thereof is wherein R 4 is-Z-R 11 where Z is a bond, O, NH, N (alkyl) , or S; and R 11 is phenyl, heteroaryl, heteroaralkyl, heterocyclyl, heterocyclylalkyl, bicyclic heterocyclyl, bicyclic heterocyclylalkyl, bridged heterocyclyl, bridged heterocyclylalkyl, fused heterocyclyl, fused heterocyclylalkyl, spiro heterocyclyl, or spiro heterocyclylalkyl, wherein phenyl, heteroaryl, by itself or as part of heteroaralkyl, heterocyclyl, by itself or as part of heterocyclylalkyl, bicyclic heterocyclyl, by itself or as part of bicyclic heterocyclylalkyl, bridged heterocyclyl, by itself or as part of bridged heterocyclyl, wherein pheny
  • R 15 and R 16 together with the carbon atom to which are attached form cycloalkyl, bridged cycloalkyl, fused cycloalkyl, spiro cycloalkyl, heterocyclyl, bridged heterocyclyl, fused heterocyclyl, or spiro heterocyclyl, wherein:
  • the compound any one of embodiment 1 to 67, or a pharmaceutically acceptable salt thereof is wherein R 4 is is-Z-R 11 where Z is O; and R 11 is, phosphinyl bicyclic heterocyclylalkyl, fused bicyclic heterocyclylalkyl, tricyclic heterocyclyl, tricyclic heterocyclylalkyl, fused tricyclic heterocyclyl, fused tricyclic heterocyclylalkyl, , or bicyclic heterocyclylalkyl wherein phosphinyl bicyclic heterocyclyl, by itself of as part of phosphinyl bicyclic heterocyclylalkyl, fused bicyclic heterocyclyl as part of fused bicyclic heterocyclylalkyl, tricyclic heterocyclyl, by itself or as part of tricyclic heterocyclylalkyl and fused tricyclic heterocyclyl, by itself or as part of fused tricyclic heterocyclylalkylare substituted
  • bicyclic heterocyclyl as part of fused bicyclic heterocyclylalkyl are substituted with alkylidene or haloalkylidene.
  • the starting materials and reagents used in preparing these compounds are either available from commercial suppliers such as Aldrich Chemical Co., (Milwaukee, Wis. ) , Bachem (Torrance, Calif. ) , or Sigma (St. Louis, Mo.
  • the reactions described herein take place at atmospheric pressure over a temperature range from about–78 °C to about 150 °C, such as from about 0 °C to about 125°C and further such as at about room (or ambient) temperature, e.g., about 20 °C.
  • Hydroxy compounds of formula R 11 -OH are either commercially available or can be made by methods known in the art.
  • 2- (pyrrolidin-1-yl) ethan-1-ol, (S) - (1-methylpyrrolidin-2-yl) methanol and (hexahydropentalen-3a (1H) -yl) methanol are commercially available or can be prepared by methods disclosed in PCT application publication Nos. WO2019099524 and WO2020146613 or as illustrated and described in Methods (a) to (d) below.
  • Compounds of formula 1-d where R 4 is other than-O-R 11 can be prepared by methods well known in the art such as PCT application publication No. WO2019099524.
  • R 5 group other than hydrogen, and Q 1 is a bond
  • Q 1 is a bond
  • R 5 group can be installed in compound 1-c by reacting compound 1-c and a suitable organometallic reagent of formula R 5 -M where R 5 is alkyl, cycloalkyl, heterocyclyl, aryl or heteroaryl and M is boronic acid, boronic ester, or stannane, under Suzuki, Negeshi, and Stille reaction conditions to provide a compound of formula 1-d.
  • Compounds of Formula (I) can be synthesized from compounds of formula 1-e by coupling with compounds of formula 1-f in the presence of coupling reagent such as PyBOP.
  • one of the amine group in compound of formula 1-f can be protected with a suitable amino protecting group such as Boc, CBz as in compounds of formula 1-g.
  • Coupling reaction between 1-e and 1-g, followed by removing the amine protecting group can provide compound of Formula (I) where one of R 6 or R 7 is hydrogen which can be converted to corresponding compound of Formula (I) where both R 6 or R 7 are other than hydrogen by methods known in the art.
  • Compounds of formula 1-g are generally commercially available or they can be made by methods known in the art.
  • (R) -2-methyl-N- (8-azaspiro [4.5] decan-1-yl) propane-2-sulfinamide can be prepared by method described in Example 2 below; and (9H-fluoren-9-yl) methyl (4, 4-difluoropyrrolidin-3-yl) carbamate, (9H-fluoren-9-yl) methyl ( (1R, 5S, 8s) -3-azabicyclo [3.2.1] octan-8-yl) carbamate, (9H-fluoren-9-yl) methyl (3-azabicyclo [3.1.1] heptan-6-yl) carbamate and (9H-fluoren-9-yl) methyl (2- azabicyclo [2.2.1] heptan-6-yl) carbamate can be prepared as described in Example 10 below.
  • tert-Butyl (4-hydroxypyrrolidin-3-yl) carbamate can be prepared by method disclosed in PCT application publication WO2008020229.
  • Compounds of Formula 1-a where X a is halogen, U, V and W are CH, R 2 and R 3 are as defined in the Summary (or any embodiments thereof) can be by reacting a compound of formula with urea at elevated temperature.
  • Compounds of formula 1 are either commercially available or can be made by methods known in the art. For example, 2-amino-4-bromo-5-chloro-3-fluorobenzoic acid, 2-amino-4-bromo-3-fluorobenzoic acid and 2-amino-4-bromobenzoic acid are commercially available.
  • R 11 -OH where R 11 is hexahydro-1H-furo [3, 4-b] pyrrolizin-7a (5H) -ylmethyl can be synthesized by the Method (a) below.
  • Condensation between methyl proline 2, aldehyde and acrylate provides an adduct 3, which upon removal of the benzyl group under standard reaction condition such as hydrogenation in the presence of Pd in carbon catalyst provides alcohol 4.
  • Reaction of 4 with TsCl in the presence of a base such as TEA provides compound 5.
  • the ester groups of 5 can be reduced with a reducing reagent such as LiAlH 4 or DIABL to provide diol 5a.
  • Treatment of 5a with a base such as NaH provides compound5b.
  • R 11 -OH where R 11 is 4, 4a, 7, 8, 9, 9a-hexahydroisoxazolo [4', 3': 4, 5] cyclopenta- [1, 2-b] pyrrolizin-8a (6H) -yl can be synthesized by the Method (b) below.
  • Compound 11 can be converted to oxime 12 by reacting 11 with hydroxyamine under conditions well known in the art. Chlorination of 12 with a chlorinating agent such as NCS, followed by treating with a suitable base such as DIPEA or TEA can cause cyclization of 12 to provide compound 13.
  • Compound 13 can be deprotonated with a suitable base such as LDA and then alkylated with 1-bromo-3-chloropropane to provide compound 14.
  • the Boc group can be removed under acid condition such as TFA in DCM and the resulting amine compound can be cyclized in the presence of a base such as K 2 CO 3 to provide 15, which can be reduced with a suitable base such as LiBH 4 to provide compound 16.
  • R 11 -OH where R 11 is 6, 7, 8, 8a-tetrahydro-5H, 9H-pyrazolo [1', 5': 1, 5] pyrrolo [3, 4-b] -pyrrolizin-7a (3bH) -yl can be synthesized by the method (c) below:
  • Reaction between amine 17 and pyrazole aldehyde 18 where Pg 1 is a suitable amino protecting group can provide imine 19 which can undergo [3+2] cycloaddition with methyl acrylate to provide compound20.
  • the methyl ester of compound20 can be selectively reduced with a reducing reagent such as LiBH 4 , followed by hydroboration of the resulting alcohol 21 can provide compound22.
  • a reducing reagent such as LiBH 4
  • Removal of the amino protecting group in 22, followed cyclization of the resulting diol 23 by converting the hydroxyl groups to leaving groups such as halide or mesylate provides compound 24.
  • Reduction of the ester group in 24 with a suitable reducing reagent such as LiBH 4 provides compound 25.
  • R 11 -OH where R 11 is 2- (fluoromethylene) tetrahydro-1H-pyrrolizin-7a (5H) -yl can be synthesized by the method (d) below:
  • Compound29 can undergo cyclization with 3-chloro-2- (chloromethyl) prop-1-ene in the presence of a base such as LHMDS to provide compound30.
  • a base such as LHMDS
  • Reduction of the keto group in compound30 with a suitable reducing reagent such as LiAlH 4 provides compound31.
  • Cleavage of the olefin in 31 with ozone provides ketone 32, which can be converted to 33 under standard Wittig olefination condition.
  • the present disclosure provides treatment of cancer mediated by K-ras, in particular with G12D mutant.
  • the cancer is pancreatic cancer, colorectal cancer, lung cancer, gall bladder cancer, thyroid cancer, and bile duct cancer.
  • the lung cancer is a non-small cell lung carcinoma (NSCLC) , for example adenocarcinoma, squamous-cell lung carcinoma or large-cell lung carcinoma.
  • the lung cancer is a small cell lung carcinoma.
  • Other lung cancers treatable with the disclosed compounds include, but are not limited to, glandular tumors, carcinoid tumors and undifferentiated carcinomas.
  • K-ras G12D mutations are observed in hematological malignancies that affect blood, bone marrow, and/or lymph nodes.
  • the compounds of Formula (I) or a pharmaceutically acceptable salt thereof can be used for the treatment of acute lymphoblastic leukemia (ALL) , acute myelogenous leukemia (AML) , chronic lymphocytic leukemia (CLL) , small lymphocytic lymphoma (SLL) , chronic myelogenous leukemia (CML) , acute monocytic leukemia (AMoL) and/or other leukemias, lymphomas such as all subtypes of Hodgkins lymphoma or non-Hodgkins lymphoma, plasma cell malignancies such as multiple myeloma, mantle cell lymphoma, and Waldenstrom’s macroglubunemia.
  • ALL acute lymphoblastic leukemia
  • AML acute myelogenous leukemia
  • CLL chronic lymphocy
  • the compounds of Formula (I) can be used for the treatment of a hyperproliferative disorder or metastasis in human who suffers from a cancer such as acute myeloid leukemia, cancer in adolescents, adrenocortical carcinoma childhood, AIDS related cancers (e.g.
  • Lymphoma and Kaposi's Sarcoma anal cancer, appendix cancer, astrocytomas, atypical teratoid, basal cell carcinoma, bile duct cancer, bladder cancer, bone cancer, brain stem glioma, brain tumor, breast cancer, bronchial tumors, Burkitt lymphoma, carcinoid tumor, atypical teratoid, embryonal tumors, germ cell tumor, primary lymphoma, cervical cancer, childhood cancers, chordoma, cardiac tumors, chronic lymphocytic leukemia (CLL) , chronic myelogenous leukemia (CML) , chronic myleoproliferative disorders, colon cancer, colorectal cancer, craniopharyngioma, cutaneous T-cell lymphoma, extrahepatic ductal carcinoma in situ (DCIS) , embryonal tumors, CNS cancer, endometrial cancer, ependymoma, esophageal cancer, esthe
  • the compounds of Formula (I) , or a pharmaceutically acceptable salt thereof can also be used for the treatment of a non-cancerous hyperproliferative disorder such as benign hyperplasia of the skin (e.g., psoriasis) , restenosis, or prostate (e.g., benign prostatic hypertrophy (BPH) ) .
  • a non-cancerous hyperproliferative disorder such as benign hyperplasia of the skin (e.g., psoriasis) , restenosis, or prostate (e.g., benign prostatic hypertrophy (BPH) ) .
  • the K-Ras G12D activity of the compounds of Formula (I) , or a pharmaceutically acceptable salt thereof can be tested using the in vitro assay described in Biological Examples 1 and 2 below.
  • the compounds Formula (I) (unless stated otherwise, reference to compound/compounds of Formula (I) herein includes any embodiments thereof described herein or a pharmaceutically acceptable salt thereof) will be administered in a therapeutically effective amount by any of the accepted modes of administration for agents that serve similar utilities.
  • Therapeutically effective amounts of compounds Formula (I) may range from about 0.01 to about 500 mg per kg patient body weight per day, which can be administered in single or multiple doses.
  • a suitable dosage level may be from about 0.1 to about 250 mg/kg per day; about 0.5 to about 100 mg/kg per day.
  • a suitable dosage level may be about 0.01 to about 250 mg/kg per day, about 0.05 to about 100 mg/kg per day, or about 0.1 to about 50 mg/kg per day.
  • the dosage can be about 0.05 to about 0.5, about 0.5 to about 5 or about 5 to about 50 mg/kg per day.
  • the compositions can be provided in the form of tablets containing about 1.0 to about 1000 milligrams of the active ingredient, particularly about 1, 5, 10, 15, 20, 25, 50, 75, 100, 150, 200, 250, 300, 400, 500, 600, 750, 800, 900, and 1000 milligrams of the active ingredient.
  • the actual amount of the compound Formula (I) i.e., the active ingredient, will depend upon numerous factors such as the severity of the disease to be treated, the age and relative health of the patient, the potency of the compound being utilized, the route and form of administration, and other factors.
  • compounds Formula (I) will be administered as pharmaceutical compositions by any one of the following routes: oral, systemic (e.g., transdermal, intranasal or by suppository) , or parenteral (e.g., intramuscular, intravenous or subcutaneous) administration.
  • routes oral, systemic (e.g., transdermal, intranasal or by suppository) , or parenteral (e.g., intramuscular, intravenous or subcutaneous) administration.
  • parenteral e.g., intramuscular, intravenous or subcutaneous
  • compositions can take the form of tablets, pills, capsules, semisolids, powders, sustained release formulations, solutions, suspensions, elixirs, aerosols, or any other appropriate compositions.
  • formulations in the form of tablets, pills or capsules, including enteric coated or delayed release tablets, pills or capsules are preferred.
  • compositions are comprised of in general, a compound of Formula (I) in combination with at least one pharmaceutically acceptable excipient.
  • Acceptable excipients are generally non-toxic, aid administration, and do not adversely affect the therapeutic benefit of the compound of Formula (I) .
  • excipient may be any solid, liquid, semi-solid or, in the case of an aerosol composition, gaseous excipient that is generally available to one of skill in the art.
  • Solid pharmaceutical excipients include starch, cellulose, talc, glucose, lactose, sucrose, gelatin, malt, rice, flour, chalk, silica gel, magnesium stearate, sodium stearate, glycerol monostearate, sodium chloride, dried skim milk and the like.
  • Liquid and semisolid excipients may be selected from glycerol, propylene glycol, water, ethanol and various oils, including those of petroleum, animal, vegetable or synthetic origin, e.g., peanut oil, soybean oil, mineral oil, sesame oil, etc.
  • Preferred liquid carriers, particularly for injectable solutions include water, saline, aqueous dextrose, and glycols.
  • the compounds of Formula (I) may be formulated for parenteral administration by injection, e.g., by bolus injection or continuous infusion.
  • Formulations for injection may be presented in unit dosage form, e.g., in ampoules or in multi-dose containers, with an added preservative.
  • the compositions may take such forms as suspensions, solutions or emulsions in oily or aqueous vehicles, and may contain formulatory agents such as suspending, stabilizing and/or dispersing agents.
  • the formulations may be presented in unit-dose or multi-dose containers, for example sealed ampoules and vials, and may be stored in powder form or in a freeze-dried (lyophilized) condition requiring only the addition of the sterile liquid carrier, for example, saline or sterile pyrogen-free water, immediately prior to use.
  • sterile liquid carrier for example, saline or sterile pyrogen-free water
  • Extemporaneous injection solutions and suspensions may be prepared from sterile powders, granules and tablets of the kind previously described.
  • Formulations for parenteral administration include aqueous and non-aqueous (oily) sterile injection solutions of the active compounds which may contain antioxidants, buffers, bacteriostats and solutes which render the formulation isotonic with the blood of the intended recipient; and aqueous and non-aqueous sterile suspensions which may include suspending agents and thickening agents.
  • Suitable lipophilic solvents or vehicles include fatty oils such as sesame oil, or synthetic fatty acid esters, such as ethyl oleate or triglycerides, or liposomes.
  • Aqueous injection suspensions may contain substances which increase the viscosity of the suspension, such as sodium carboxymethyl cellulose, sorbitol, or dextran.
  • the suspension may also contain suitable stabilizers or agents which increase the solubility of the compounds to allow for the preparation of highly concentrated solutions.
  • the compounds of Formula (I) may also be formulated as a depot preparation. Such long acting formulations may be administered by implantation (for example subcutaneously or intramuscularly) or by intramuscular injection.
  • the compounds may be formulated with suitable polymeric or hydrophobic materials (for example as an emulsion in an acceptable oil) or ion exchange resins, or as sparingly soluble derivatives, for example, as a sparingly soluble salt.
  • compositions may take the form of tablets, lozenges, pastilles, or gels formulated in conventional manner.
  • Such compositions may comprise the active ingredient in a flavored basis such as sucrose and acacia or tragacanth.
  • the compounds of Formula (I) may also be formulated in rectal compositions such as suppositories or retention enemas, e.g., containing conventional suppository bases such as cocoa butter, polyethylene glycol, or other glycerides.
  • Certain compounds of Formula (I) may be administered topically, that is by non-systemic administration. This includes the application of a compound of Formula (I) externally to the epidermis or the buccal cavity and the instillation of such a compound into the ear, eye and nose, such that the compound does not significantly enter the blood stream.
  • systemic administration refers to oral, intravenous, intraperitoneal and intramuscular administration.
  • Formulations suitable for topical administration include liquid or semi-liquid preparations suitable for penetration through the skin to the site of inflammation such as gels, liniments, lotions, creams, ointments or pastes, and drops suitable for administration to the eye, ear or nose.
  • the active ingredient for topical administration may comprise, for example, from 0.001%to 10%w/w (by weight) of the formulation. In certain embodiments, the active ingredient may comprise as much as 10%w/w. In other embodiments, it may comprise less than 5%w/w. In certain embodiments, the active ingredient may comprise from 2%w/w to 5%w/w. In other embodiments, it may comprise from 0.1%to 1%w/w of the formulation.
  • compounds of Formula (I) may be conveniently delivered from an insufflator, nebulizer pressurized packs or other convenient means of delivering an aerosol spray.
  • Pressurized packs may comprise a suitable propellant such as dichlorodifluoromethane, trichlorofluoromethane, dichlorotetrafluoroethane, carbon dioxide or other suitable gas.
  • the dosage unit may be determined by providing a valve to deliver a metered amount.
  • the compounds of Formula (I) may take the form of a dry powder composition, for example a powder mix of the compound and a suitable powder base such as lactose or starch.
  • the powder composition may be presented in unit dosage form, in for example, capsules, cartridges, gelatin or blister packs from which the powder may be administered with the aid of an inhalator or insufflator.
  • suitable pharmaceutical excipients and their formulations are described in Remington’s Pharmaceutical Sciences, edited by E.W. Martin (Mack Publishing Company, 20th ed., 2000) .
  • the level of the compound of Formula (I) in a formulation can vary within the full range employed by those skilled in the art.
  • the formulation will contain, on a weight percent (wt. %) basis, from about 0.01-99.99 wt. %of a compound of Formula (I) based on the total formulation, with the balance being one or more suitable pharmaceutical excipients.
  • the compound is present at a level of about 1-80 wt. %.
  • the compounds of Formula (I) , or a pharmaceutically acceptable salt thereof may be used in combination with one or more other drugs in the treatment of diseases or conditions for which compounds of Formula (I) , or the other drugs may have utility.
  • Such other drug (s) may be administered, by a route and in an amount commonly used therefore, contemporaneously or sequentially with a compound of Formula (I) or a pharmaceutically acceptable salt thereof.
  • a pharmaceutical composition in unit dosage form containing such other drugs and the compound of Formula (I) , or a pharmaceutically acceptable salt thereof can be used.
  • compositions of the present disclosure also include those that contain one or more other drugs, in addition to a compound of Formula (I) , or a pharmaceutically acceptable salt thereof.
  • the combination therapy may also include therapies in which the compound of Formula (I) , or a pharmaceutically acceptable salt thereof and one or more other drugs are administered on different overlapping schedules. It is also contemplated that when used in combination with one or more other active ingredients, the compounds of Formula (I) , and the other active ingredients may be used in lower doses than when each is used singly.
  • the weight ratio of the compound of this disclosure to the second active ingredient may be varied and will depend upon the effective dose of each ingredient. Generally, an effective dose of each will be used.
  • the patient can be treated with a compound of Formula (I) , or a pharmaceutically acceptable salt thereof in any combination with one or more other anti-cancer agents including but not limited to:
  • MAP kinase pathway (RAS/RAF/MEK/ERK) inhibitors including but not limited to: Vemurafanib (PLX4032, CAS No. 918504-65-1) , Dabrafenib (CAS No. 1195765-45-7) , Encorafenib (LGX818 CAS No. 1269440-17-6) , TQ-B3233, XL-518 (Cas No. 1029872-29-4, available from ACC Corp) ; trametinib (CAS No. 871700-17-3) , selumetinib (AZD6244 CAS No. 606143-52-6) , TQ-B3234, PD184352 (CAS No.
  • SHP2 inhibitors including but not limited to: SHP099 (CAS No. 2200214-93-1) , TNO155 (CAS No. 1801765-04-7) , RMC4630, JAB-3312, JAB-3068 and ERAS-601;
  • SOS1 inhibitors including but not limited to BI1701963 and BAY-293;
  • CSF1R inhibitors PLX3397, LY3022855,
  • CSF1R antibodies IMC-054, RG7l55
  • TGF beta receptor kinase inhibitor such as LY2157299
  • BTK inhibitor such as ibrutinib; BCR-ABL inhibitors: Imatinib (CAS No. 152459-95-5) ; Inilotinib hydrochloride; Nilotinib (CAS No. 923288-95-3) ; Dasatinib (BMS-345825 CAS No. 302962-49-8) ; Bosutinib (SKI-606 CAS No. 380843-75-4) ; Ponatinib (AP24534 CAS No. 943319-70-8) ; Bafetinib (INNO406 CAS No. 859212-16-1) ; Danusertib (PHA-739358 CAS No.
  • ALK inhibitors PF-2341066 ( crizotinib) ; 5-chloro-N4- (2- (isopropyl-sulfonyl) phenyl) -N2- (2-methoxy-4- (4- (4-methylpiper azin-l-yl) piperidin-l-yl) phenyl) pyrimidine-2, 4-diamine; GSK1838705A (CAS No. 1116235-97-2) ; CH5424802 (CAS No. 1256580-46-7) ; Ceritinib (ZYKADIA CAS No. 1032900-25-6) ; TQ-B3139, and TQ-B3101;
  • PI3K inhibitors 4- [2- (lH-Indazol-4-yl) -6- [ [4- (methylsulfonyl) -piperazin-l-yl] methyl] thieno [3, 2-d] pyrimidin-4-yl] mocpholine (also known as GDC 0941 and described in PCT Publication Nos. WO 09/036082 and WO 09/055730) , BEZ235 or NVP-BEZ235 (CAS No. 915019-65-7) , disclosed in PCT Publication No. WO 06/122806) ;
  • VEGF receptor inhibitors Bevacizumab (sold under the trademark by Genentech/Roche) , axitinib, (N-methyl-2- [ [3- [ (E) -2-pyridin-2-ylethenyl] -lH-indazol-6-yl] sulfanyl] benzamide, also known as AG013736, and described in PCT Publication No.
  • pasireotide also known as SOM230, and described in PCT Publication No. WO 02/010192
  • sorafenib sold under the tradename CAS No. 284461-73-0
  • AL-2846 AL-2846
  • MET inhibitor such as foretinib (CAS No. 849217-64-7) , cabozantinib (CAS No. 1140909-48-3) , capmatinib (CAS No. 1029712-80-8) , tepotinib (CAS No. 1100598-32-0) , savolitinib (CAS No. 1313725-88-0, or crizotinib (CAS No. 877399-52-5) ;
  • FLT3 inhibitors-sunitinib malate (CAS No. 341031-54-7, sold under the tradename by Pfizer) ; PKC412 (CAS No. 120685-11-2, midostaurin) ; tandutinib (CAS No. 387867-13-2) , sorafenib (CAS No. 284461-73-0) , lestaurtinib (CAS No.: 111358-88-4) , KW-2449 (CAS No. 1000669-72-6) , quizartinib (AC220, CAS No. 950769-58-1) , or crenolanib (CAS No. 670220-88-9) ;
  • Epidermal growth factor receptor (EGFR) inhibitors Gefitnib (sold under the tradename ) ,N- [4- [ (3-Chloro-4-fluorophenyl) amino] -7- [ [ (3 "S” ) -tetrahydro-3-furanyl] oxy] -6-quinazolinyl] -4 (dimethylamino) -2-butenamide, sold under the tradename by Boehringer Ingelheim) , cetuximab (sold under the tradename by Bristol-Myers Squibb) , or panitumumab (sold under the tradename by Amgen) ;
  • HER2 receptor inhibitors Trastuzumab (sold under the trademark by Genentech/Roche) , neratinib (also known as HKI-272, (2E) -N- [4- [ [3-chloro-4- [ (pyridin-2-yl) methoxy] phenyl] amino] -3-cyano-7-ethoxyquinolin-6-yl] -4- (d imethylamino) but-2-enamide, and described PCT Publication No. WO 05/028443) , lapatinib (CAS No.
  • lapatinib ditosylate (CAS No: 388082-77-7) (sold under the trademark by GlaxoSmithKline) ; or Trastuzumab emtansine (in the United States, ado-trastuzumab emtansine, trade name Kadcyla) -an antibody-drug conjugate consisting of the monoclonal antibody trastuzumab (Herceptin) linked to the cytotoxic agent mertansine (DM1) ;
  • HER dimerization inhibitors Pertuzumab (sold under the trademark by Genentech) ;
  • FGFR inhibitors Erdafitinib (CAS No. 1346242-81-6) , Pemigatinib (CAS No. 1513857-77-6) or Infigratinib (CAS No. 872511-34-7)
  • Aurora kinase inhibitors TAS-119 (CAS No. 1453099-83-6) , LY3295668 (CAS No. 1919888-06-4) , or alisertib (CAS No. 1028486-01-2) ;
  • CD20 antibodies Rituximab (sold under the trademarks and by Genentech/Roche) , tositumomab (sold under the trademarks by GlaxoSmithKline) , or ofatumumab (sold under the trademark by GlaxoSmithKline) ;
  • Tyrosine kinase inhibitors Erlotinib hydrochloride (CAS No. 183319-69-9, sold under the trademark by Genentech/Roche) , Linifanib (N- [4- (3-amino-lH-indazol-4-yl) phenyl] -N'- (2-fluoro-5-methylphenyl) urea, also known as ABT 869, available from Genentech) , sunitinib malate (CAS No.
  • DNA Synthesis inhibitors Capecitabine (CAS No. 154361-50-9) (sold under the trademark by Roche) , gemcitabine hydrochloride (CAS No. 122111-03-9) (sold under the trademark by Eli Lilly and Company) , or nelarabine ( (2R3S, 4R, 5R) -2- (2-amino-6-methoxy-purin-9-yl) -5- (hydroxymet hyl) oxolane-3, 4-diol, sold under the tradenames and by GlaxoSmithKline) ;
  • Antineoplastic agents oxaliplatin (CAS No. 61825-94-3) (sold under the tradename ay Sanofi-Aventis and described in US Patent No. 4,169,846) ;
  • G-CSF modulators Human Granulocyte colony-stimulating factor (G-CSF) modulators: Filgrastim (sold under the tradename by Amgen) ;
  • Immunomodulators Afutuzumab (available from ) , pegfilgrastim (sold under the tradename by Amgen) , lenalidomide (CAS No. 191732-72-6, also known as CC-5013, sold under the tradename ) , or thalidomide (CAS No. 50-35-1, sold under the tradename ) ;
  • CD40 inhibitors Dacetuzumab (also known as SGN-40 or huS2C6, available from Seattle Genetics, Inc) ;
  • PARAs Pro-apoptotic receptor agonists
  • Hedgehog antagonists 2-chloro-N- [4-chloro-3- (2-pyridinyl) phenyl] -4- (methylsulfony 1) -benzamide (also known as GDC-0449, and described in PCT Publication No. WO 06/028958) ;
  • Phospholipase A2 inhibitors Anagrelide (CAS No. 58579-51-4, sold under the tradename ) ;
  • BCL-2 inhibitors 4- [4- [ [2- (4-chlorophenyl) -5, 5-dimethyl-l-cyclohexen-l-yl] met hyl] -1-piperazinyl] -N- [ [4- [ [ (lR) -3- (4-morpholinyl) -l- [ (phenylthio) m ethyl] propyl] amino] -3- [ (trifluoromethyl) sulfonyl] phenyl] sulfonyl] benzamide (also known as ABT-263 and described in PCT Publication No. WO 09/155386) ;
  • MCL-1 inhibitors MIK665 (CAS No. 1799631-75-6, S64315) , AMG 397, and AZD5991 (CAS No. 2143010-83-5) ;
  • Aromatase inhibitors Exemestane (CAS No. 107868-30-4, sold under the trademark by Pfizer) , letrozole (CAS No. 112809-51-5, sold under the tradename by Novartis) , or anastrozole (CAS No. 120511-73-1, sold under the tradename ) ;
  • Topoisomerase I inhibitors Irinotecan (CAS No. 97682-44-5, sold under the trademark by Pfizer) , topotecan hydrochloride (CAS No. 119413-54-6, sold under the tradename by GlaxoSmithKline) ;
  • Topoisomerase II inhibitors etoposide (CAS No. 33419-42-0, also known as VP-16 and Etoposide phosphate, sold under the tradenames and ) , or teniposide (CAS No. 29767-20-2, also known as VM-26, sold under the tradename ) ;
  • mTOR inhibitors Temsirolimus (CAS No. 162635-04-3, sold under the tradename by Pfizer) , ridaforolimus (CAS No. 572924-54-0, formally known as deferolimus, AP23573 and MK8669, and described in PCT Publication No. WO 03/064383) , or everolimus (CAS No. 159351-69-6, sold under the tradename by Novartis) ;
  • Proteasome inhibitor such as carfilzomib (CAS No. 868540-17-4) , MLN9708 (CAS No. 1201902-80-8) , delanzomib (CAS No. 847499-27-8) , or bortezomib (CAS No. 179324-69-7) ;
  • BET inhibitors such as INCB054329 (CAS No. 1628607-64-6) , OTX015 (CAS No. 202590-98-5) , or CPI-0610 (CAS No. 1380087-89-7) ;
  • LSD1 inhibitors such as GSK2979552, or INCB059872;
  • HIF-2 ⁇ inhibitors such as PT2977 (1672668-24-4) , NKT2152, or PT2385 (CAS No. 1672665-49-4) ;
  • Osteoclastic bone resorption inhibitors l-Hydroxy-2-imidazol-l-yl-phosphonoethyl) phosphonic acid monohydrate (sold under the tradename by Novartis) ;
  • CD33 Antibody Drug Conjugates Gemtuzumab ozogamicin (sold under the tradename by Pfizer/Wyeth) ;
  • CD22 Antibody Drug Conjugates Inotuzumab ozogamicin (also referred to as CMC-544 and WAY-207294, available from Hangzhou Sage Chemical Co., Ltd. ) ;
  • CD20 Antibody Drug Conjugates Ibritumomab tiuxetan (sold under the tradename ) ;
  • octreotide also known as octreotide acetate, sold under the tradenames and Sandostatin ) ;
  • Synthetic Interleukin-11 (IL-l 1) : oprelvekin (sold under the tradename by Pfizer/Wyeth) ;
  • Receptor Activator for Nuclear Factor k B (RANK) inhibitors Denosumab (sold under the tradename by Amgen) ;
  • Thrombopoietin mimetic peptibodies Romiplostim (sold under the tradename
  • IGF-1R antibodies Anti-insulin-like Growth Factor-l receptor (IGF-1R) antibodies: Figitumumab (also known as CP-751, 871, available from ACC Corp) , robatumumab (CAS No. 934235-44-6) ;
  • Anti-CSl antibodies Elotuzumab (HuLuc63, CAS No. 915296-00-3) ;
  • CD52 antibodies Alemtuzumab (sold under the tradename ) ;
  • Histone deacetylase inhibitors Voninostat (sold under the tradename by Merck) ;
  • Alkylating agents Temozolomide (sold under the tradenames and by Schering-Plough/Merck) , dactinomycin (also known as actinomycin-D and sold under the tradename ) , melphalan (also known as L-PAM, L-sarcolysin, and phenylalanine mustard, sold under the tradename ) , altretamine (also known as hexamethylmelamine (HMM) , sold under the tradename ) , carmustine (sold under the tradename ) , bendamustine (sold under the tradename ) , busulfan (sold under the tradenames and ) , carboplatin (sold under the tradename ) , lomustine (also known as CCNU, sold under the tradename ) , cisplatin (also known as CDDP, sold under the tradenames and ) , chlorambucil (sold under the tradename ) , cyclophospham
  • Biologic response modifiers bacillus calmette-guerin (sold under the tradenames and BCG) , or Denileukin diftitox (sold under the tradename ) ;
  • Anti-tumor antibiotics doxorubicin (sold under the tradenames and ) , bleomycin (sold under the tradename ) , daunorubicin (also known as dauorubicin hydrochloride, daunomycin, and rubidomycin hydrochloride, sold under the tradename ) , daunorubicin liposomal (daunorubicin citrate liposome, sold under the tradename ) , mitoxantrone (also known as DHAD, sold under the tradename ) , epirubicin (sold under the tradename Ellence TM ) , idarubicin (sold under the tradenames Idamycin ) , or mitomycin C (sold under the tradename ) ;
  • Anti-microtubule agents Estramustine (CAS No. 52205-73-9, sold under the tradename ) ;
  • Cathepsin K inhibitors Odanacatib (CAS No. 603139-19-1, also know as MK-0822 available from Lanzhou Chon Chemicals, ACC Corp., and ChemieTek, and described in PCT Publication no. WO 03/075836) ;
  • Epothilone B analogs Ixabepilone (CAS No. 219989-84-1, sold under the tradename by Bristol-Myers Squibb) ;
  • HSP Heat Shock Protein
  • TpoR agonists Eltrombopag (sold under the tradenames and by GlaxoSmithKline) ;
  • Anti-mitotic agents Docetaxel (CAS No. 114977-28-5, sold under the tradename by Sanofi-Aventis) ; Adrenal steroid inhibitors: aminoglutethimide (CAS No. 125-84-8, sold under the tradename
  • Anti-androgens Nilutamide (CAS No. 63612-50-0, sold under the tradenames and ) , bicalutamide (CAS No. 90357-06-5, sold under tradename ) , or flutamide (CAS No. 13311-84-7, sold under the tradename Fulexin TM ) ;
  • Androgens Fluoxymesterone (CAS No. 76-43-7, sold under the tradename ) ;
  • CDK inhibitors including but not limited to: Alvocidib (CAS No. 146426-40-6, pan-CDK inhibitor, also known as flovopirdol or HMR-1275, 2- (2-chlorophenyl) -5, 7-dihydroxy-8- [ (3S, 4R) -3-hydroxy-l-methyl-4-piperidinyl] -4-chromenone, and described in US Patent No. 5,621,002) ;
  • CDK2 inhibitor PF-07104091 CDK2 inhibitor PF-07104091
  • CDK4/6 inhibitors pabociclib (CAS No. 827022-33-3) , ribociclib (CAS No. 1211441-98-3) , abemaciclib (CAS No. 1231929-97-7) , PF-06873600 (CAS No. 2185857-97-8) , NUV-422 and Trilaciclib (CAS No. 1374743-00-6) ;
  • CDK7 inhibitors CT7001 (CAS No. 1805789-54-1) and SY-1365 (CAS No. 1816989-16-8) ;
  • CDK9 inhibtiors AZD 4573 (CAS No. 2057509-72-3) , P276-00 (CAS No. 920113-03-7) , AT7519 (CAS No. 844442-38-2) , CYC065 (CAS No. 1070790-89-4) or TP-1287;
  • GnRH Gonadotropin-releasing hormone receptor agonists: Leuprolide or leuprolide acetate (sold under the tradenames by Bayer AG, by Sanofi-Aventis and by Abbott Lab) ;
  • Taxane anti-neoplastic agents Cabazitaxel (l-hydroxy-7, 10-dimethoxy-9-oxo-5, 20-epoxytax-l l-ene-2a, 4, l3a-triyl-4-acetate-2-benzoate-l3- [ (2R, 3S) -3- ⁇ [ (tert-butoxy) carbonyl] -amino ⁇ -2-hydroxy-3-phenylpropanoate) , or larotaxel ( (2a, 3x, 4a, 5b, 7a, 10b, 13a) -4, l0-bis (acetyloxy) -l3- ( ⁇ (2R, 3S) -3- [ (tert-butoxycarbonyl) amino] -2-hydroxy-3-phenylpropanoyl ⁇ oxy) -l-hydroxy-9-oxo-5, 20-epoxy-7, l9-cyclotax-ll-en-2-yl benzoate) ;
  • 5HTla receptor agonists Xaliproden (also known as SR57746, l- [2- (2-naphthyl) ethyl] -4- [3- (trifluoromethyl) phenyl] -l, 2, 3, 6-tetrahydropyridine, and described in US Patent No. 5,266,573) ;
  • HPC vaccines sold by GlaxoSmithKline, sold by Merck;
  • Iron Chelating agents Deferasinox (CAS No. 201530-41-8, sold under the tradename by Novartis) ;
  • Anti-metabolites Claribine (2-chlorodeoxyadenosine, sold under the tradename ) , 5-fluorouracil (sold under the tradename ) , 6-thioguanine (sold under the tradename ) , pemetrexed (sold under the tradename ) , cytarabine (also known as arabinosylcytosine (Ara-C) , sold under the tradename ) , cytarabine liposomal (also known as Liposomal Ara-C, sold under the tradename DepoCyt TM ) , decitabine (sold under the tradename ) , hydroxyurea (sold under the tradenames Droxia TM and Mylocel TM ) , fludarabine (sold under the tradename ) , floxuridine (sold under the tradename ) , cladribine (also known as 2-chlorodeoxyadenosine (2-CdA) sold
  • Bisphosphonates Pamidronate (CAS No. 57248-88-1, sold under the tradename ) , zoledronic acid CAS No. 118072-93-8 (sold under the tradename ) ;
  • Demethylating agents 5-azacitidine (CAS No. 320-67-2, sold under the tradename ) , decitabine (CAS No. 2353-33-5, sold under the tradename ) ;
  • Paclitaxel protein-bound (sold under the tradename ) , vinblastine (also known as vinblastine sulfate, vincaleukoblastine and VLB, sold under the tradenames and ) , vincristine (also known as vincristine sulfate, LCR, and VCR, sold under the tradenames and Vincasar ) , vinorelbine (sold under the tradename ) , or paclitaxel (sold under the tradenames Taxol and Onxal TM ) ;
  • Retinoids Ali tretinoin (sold under the tradename ) , tretinoin (all-trans retinoic acid, also known as ATRA, sold under the tradename ) , Isotretinoin (13-cis-retinoic acid, sold under the tradenames and ) , or bexarotene (sold under the tradename ) ;
  • Glucocorticosteroids Hydrocortisone (also known as cortisone, hydrocortisone sodium succinate, hydrocortisone sodium phosphate, and sold under the tradenames Hydrocortisone Phosphate, Hydrocort and ) , dexamethazone ( (8S, 9R, lOS, l lS, l3S, l4S, l6R, l7R) -9-fluoro-l 1, 17-dihydroxy-17- (2-hydroxyacetyl) -l0, l3, l6-trimethyl-6, 7, 8, 9, 10, 1 l, l2, l3, l4, l5, l6, l7-dodecahydro-3H-cyclopenta [a] phenanthren-3-one) , prednisolone (sold under the tradenames and ) , prednisone (sold under the tradenames Liquid and ) , or methylprednisolone (also
  • Cytokines interleukin-2 (also known as aldesleukin and IL-2, sold under the tradename ) ,interleukin-11 (also known as oprevelkin, sold under the tradename ) , alpha interferon alfa (also known as IFN-alpha, sold under the tradenames A, and ) ;
  • Estrogen receptor downregulators Fulvestrant (CAS No. 129453-61-8, sold under the tradename ) ;
  • Anti-estrogens tamoxifen (CAS No. 10540-29-1, sold under the tradename ) ; or Toremifene (CAS No. 89778-27-8, sold under the tradename ) ;
  • SERMs Selective estrogen receptor modulators
  • LfRH Leutinizing hormone releasing hormone
  • Goserelin CAS No. 145781-92-6, sold under the tradename
  • Progesterones megestrol (also known as megestrol acetate, CAS No. 595-33-5, sold under the tradename )
  • megestrol also known as megestrol acetate, CAS No. 595-33-5, sold under the tradename
  • Miscellaneous cytotoxic agents Arsenic trioxide (sold under the tradename ) , or asparaginase (also known as L-asparaginase, Erwinia L-asparaginase, sold under the tradenames and ) ;
  • immune checkpoint inhibitors include inhibitors (smack molecules or biologies) against immune checkpoint molecules such as CD27, CD28, CD40, CD 122, CD96, CD73, CD39, CD47, 0X40, GITR, CSF1R, JAK, PI3K delta, PI3K gamma, TAM kinase, arginase, CD137 (also known as 4-1BB) , ICOS, A2AR, A2BR, HIF-2a, B7-H3, B7-H4,BTLA, CTLA-4, LAG3, TIM3, VISTA, CD96, TIGIT, PD-l, PD-L1 and PD-L2.
  • inhibitors smack molecules or biologies against immune checkpoint molecules
  • immune checkpoint molecules such as CD27, CD28, CD40, CD 122, CD96, CD73, CD39, CD47, 0X40, GITR, CSF1R, JAK, PI3K delta, PI3K gam
  • the immune checkpoint molecule is a stimulatory checkpoint molecule selected from CD27, CD28, CD40, ICOS, 0X40, GITR, CD137 and STING.
  • the immune checkpoint molecule is an inhibitory checkpoint molecule selected from B7-H3, B7-H4, BTLA, CTLA-4, IDO, TDO, Arginase, KIR, LAG3, PD-l, TIM3, CD96, TIGIT and VISTA.
  • the compounds provided herein can be used in combination with one or more agents selected from KIR inhibitors, TIGIT inhibitors, LAIR1 inhibitors, CD 160 inhibitors, 2B4 inhibitors and TGFR beta inhibitors.
  • the inhibitor of an immune checkpoint molecule is an inhibitor of PD-l, e.g., an anti-PD-l monoclonal antibody.
  • the anti-PD-l monoclonal antibody is nivolumab, pembrolizumab (also known as MK-3475) , pidilizumab, SHR-1210, PDR001, or AMP-224.
  • the anti-PD-l monoclonal antibody is nivolumab, or pembrolizumab or PDR001.
  • the anti-PD 1 antibody is pembrolizumab.
  • the inhibitor of an immune checkpoint molecule is an inhibitor of PD-L1, e.g., an anti-PD-Ll monoclonal antibody.
  • the anti-PD-Ll monoclonal antibody is BMS-935559, MEDI4736, MPDL3280A (also known as RG7446) , or MSB0010718C.
  • the anti-PD-Ll monoclonal antibody is MPDL3280A (atezolizumab) or MEDI4736 (durvalumab) .
  • the anti-PD-L1 small molecule inhibitor is INCB86550.
  • the inhibitor of an immune checkpoint molecule is an inhibitor of CTLA-4, e.g., an anti-CTLA-4 antibody.
  • the anti-CTLA-4 antibody is ipilimumab or tremelimumab.
  • the inhibitor of an immune checkpoint molecule is an inhibitor of LAG3, e.g., an anti-LAG3 antibody.
  • the anti-LAG3 antibody is BMS-986016 or LAG525.
  • the inhibitor of an immune checkpoint molecule is an inhibitor of GITR, e.g., an anti-GITR antibody.
  • the anti-GITR antibody is TRX518 or, MK-4166, INCAGN01876 or MK-1248.
  • the inhibitor of an immune checkpoint molecule is an inhibitor of 0X40, e.g., an anti-OX40 antibody or OX40L fusion protein.
  • the anti-OX40 antibody is MED 10562 or, INCAGN01949, GSK2831781, GSK-3174998, MOXR-0916, PF-04518600 or LAG525.
  • the OX40L fusion protein is MEDI6383.
  • Compounds of the invention can also be used to increase or enhance an immune response, including increasing the immune response to an antigen; to improve immunization, including increasing vaccine efficacy; and to increase inflammation.
  • the compounds of the invention can be sued to enhance the immune response to vaccines including, but not limited, Listeria vaccines, oncolytic viral vaccines, and cancer vaccines such as (granulocyte-macrophage colony-stimulating factor (GM-CF) gene-transfected tumor cell vaccine) .
  • Anti-cancer vaccines include dendritic cells, synthetic peptides, DNA vaccines and recombinant viruses.
  • immune-modulatory agents also include those that block immune cell migration such as antagonists to chemokine receptors, including CCR2 and CCR4; Sting agonists and Toll receptor agonists.
  • Other anti-cancer agents also include those that augment the immune system such as adjuvants or adoptive T cell transfer. Compounds of this application may be effective in combination with CAR (Chimeric antigen receptor) T cell treatment as a booster for T cell activation.
  • CAR Chimeric antigen receptor
  • a compound of the invention can also be used in combination with the following adjunct therapies: Anti-nausea drugs: NK-l receptor antagonists: Casopitant (sold under the tradenames and by GlaxoSmithKline) ; and Cytoprotective agents: Amifostine (sold under the tradename ) , leucovorin (also known as calcium leucovorin, citrovorum factor and folinic acid) .
  • NK-l receptor antagonists Casopitant (sold under the tradenames and by GlaxoSmithKline)
  • Cytoprotective agents Amifostine (sold under the tradename ) , leucovorin (also known as calcium leucovorin, citrovorum factor and folinic acid) .
  • Step 2 8- ( (triisopropylsilyl) ethynyl) naphthalene-1, 3-diol
  • Step 3 3- (methoxymethoxy) -8- ( (triisopropylsilyl) ethynyl) naphthalene-1-phenol
  • chloromethyl methyl ether (1.61g, 20.0 mmol) was added dropwise to 8- ( (triisopropyl-silyl) ethynyl) naphthalene-1, 3-diol (6.50g, 19.0mmol) and diisopropylethylamine (4.93g, 38.1 mmol) in dichloromethane (60.0mL) , and the reaction temperature was raised to 20°C after completion of the addition. After 2 h, the reaction solution was quenched with water and 1M hydrochloric acid. After adjusting the pH to 6-7, the reaction mixture was extracted with dichloromethane, filtered, dried, and concentrated. The crude product was purified by flash silica gel column to obtain the title compound as a black oil.
  • Step 4 Trifluoromethanesulfonic acid (3- (methoxymethoxy) -8- ( (triisopropylsilyl) ethynyl) -naphthalene-1-yl) ester
  • trifluoromethanesulfonic anhydride (4.11g, 14.5 mmol) was added dropwise to 3- (methoxymethoxy) -8- ( (triisopropylsilyl) ethynyl) naphthalene-1-ol (3.50g, 9.10mmol) and diisopropylethylamine (4.70g, 36.4mmol) in dichloromethane (30.0mL) and the reaction mixture was stirred at this temperature for 0.5 h. The reaction mixture was added to water, and extracted with dichloromethane, dried and filtered. The organic phase was concentrated and the crude product was purified by a flash silica gel column to obtain the title compound (4.70 g, 99.9%yield) .
  • Step 5 triisopropyl ( (6- (methoxymethoxy) -8- (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolane-2-yl-naphthalene-1-yl) ethynyl) silaneIn the glove box, 3- (methoxymethoxy) -8- ( (triisopropylsilyl) -ethynyl) naphthalene-1-yl triflate (2.80 g, 5.42 mmol) , pinacol diborate (2.48 g, 9.76 mmol) , Pd (dppf) Cl2 (397 mg, 0.542 mmol) , potassium acetate (1.33 g, 13.6 mmol) were added to dioxane (15 mL) and the reaction mixture was heated at 120°C for 12 h. The reaction solution was concentrated and purified by column chromatography to obtain the the title compound as an orange solid (4.53g, 56.2%yield)
  • Step 3 2- (3-bromo-5-chloro-4-cyclopropylphenyl) -4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolane
  • Step 5 1-bromo-3-chloro-2-cyclopropyl-5- (methoxymethoxy) benzene
  • Step 6 2- (3-chloro-2-cyclopropyl-5- (methoxymethoxy) phenyl) -4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaborolane
  • Step 1 ethyl 2-methylene-5-oxotetrahydro-1H-pyrrolizine-7a (5H) -carboxylate
  • Step 1 1- (tert-butyl) 2-methyl (2R, 4R) -4- ( (tert-butyldimethylsilyl) oxy) pyrrolidine-1, 2-dicarboxylate
  • Step 2 1- (tert-butyl) 2-methyl (2R, 4R) -4- ( (tert-butyldimethylsilyl) oxy) -2- (2- (chloromethyl) allyl) pyrrolidine-1, 2-dicarboxylate
  • Step 3 1- (tert-butyl) 2-methyl (2R, 4R) -2- (2- (chloromethyl) allyl) -4-hydroxypyrrolidine-1, 2-dicarboxylate
  • Step 4 1- (tert-butyl) 2-methyl (2R, 4S) -2- (2- (chloromethyl) allyl) -4-fluoropyrrolidine-1, 2-dicarboxylate
  • Step 5 methyl (2S, 7aR) -2-fluoro-6-methylenetetrahydro-1H-pyrrolizine-7a (5H) -carboxylate
  • Step 1 7-chloro-8-fluoro-2- ( (2-methylenehexahydro-1H-pyrrolizin-7a-yl) methoxy) -4- (2- (trimethylsilyl) ethoxy) pyrido [4, 3-d] pyrimidine
  • Step 2 8-fluoro-7- (7-fluoro-8- ( (triisopropylsilyl) ethynyl) naphthalen-1-yl) -2- ( (2-methylene-hexahydro-1H-pyrrolizin-7a-yl) methoxy) -4- (2- (trimethylsilyl) ethoxy) pyrido [4, 3-d] pyrimidine
  • Step 3 7- (8-ethynyl-7-fluoronaphthalen-1-yl) -8-fluoro-2- ( (2-methylenehexahydro-1H-pyrrolizin-7a-yl) methoxy) pyrido [4, 3-d] pyrimidin-4-ol
  • Step 1 benzyl N- (2, 2-dimethoxyethyl) carbamate
  • Step 4 benzyl N-allyl-N- [ (2E) -2-hydroxyiminoethyl] carbamate
  • Step 5 benzyl 3-amino-4- (hydroxymethyl) pyrrolidine-1-carboxylate
  • reaction mixture was filtered and concentrated to remove Xylene and AcOH, diluted with MeOH, basified by addition of Na 2 CO 3 (aq., sat., ) at 0°C and concentrated.
  • the residue was diluted with MeOH, filtered, and washed with MeOH. Filtrate was concentrated to give the title compound (5.04 g, crude) as a brown liquid.
  • Step 6 benzyl 3- (tert-butoxycarbonylamino) -4- (hydroxymethyl) pyrrolidine-1-carboxylate
  • Step 7 benzyl 3- (tert-butoxycarbonylamino) -4- (methylsulfonyloxymethyl) pyrrolidine-1-carboxylate
  • Step 8 benzyl 3- (tert-butoxycarbonylamino) -4- (cyanomethyl) pyrrolidine-1-carboxylate
  • Step 9 tert-butyl N- [4- (cyanomethyl) pyrrolidin-3-yl] carbamate
  • Step 1 (5R) -7-benzyl-1, 3, 7-triazaspiro [4.4] nonane-2, 4-dione
  • Step 4 ethyl 1-benzyl-3- (tert-butoxycarbonylamino) pyrrolidine-3-carboxylate
  • Step 5 tert-butyl N- [1-benzyl-3- (hydroxymethyl) pyrrolidin-3-yl] carbamate
  • Step 6 tert-butyl N- [1-benzyl-3- (methoxymethyl) pyrrolidin-3-yl] carbamate
  • Step 7 tert-butyl N- [3- (methoxymethyl) pyrrolidin-3-yl] carbamate
  • Step 1 benzyl 3- ( (tert-butoxycarbonyl) amino) -3-formyl piperidine-1-carboxylate
  • Step 2 benzyl 3- ( (tert-butoxycarbonyl) amino) -3-ethynyl piperidine-1-carboxylate
  • Step 1 tert-butyl 3- ( (4, 5-dihydrooxazol-2-yl) amino) pyrrolidine-1-carboxylate
  • Step 2 N- (pyrrolidin-3-yl) -4, 5-dihydrooxazol-2-amine
  • Step 1 tert-butyl 3- (thiazol-2-ylamino) pyrrolidine-1-carboxylate
  • Step 4 1- ( (benzyloxy) carbonyl) -3, 6-dimethylpiperidine-3-carboxylic acid
  • Step 5 benzyl 5- ( (tert-butoxycarbonyl) amino) -2, 5-dimethylpiperidine-1-carboxylate
  • Step 6 tert-butyl (3, 6-dimethylpiperidin-3-yl) carbamate
  • Step 2 1-benzyl 3-ethyl 5- (fluoromethyl) -3-methylpiperidine-1, 3-dicarboxylate
  • Step 3 1-benzyloxycarbonyl-5- (fluoromethyl) -3-methyl-piperidine-3-carboxylic acid
  • Step 4 benzyl 3-amino-5- (fluoromethyl) -3-methyl-piperidine-1-carboxylate
  • Step 5 benzyl 3- (tert-butoxycarbonylamino) -5- (fluoromethyl) -3-methyl-piperidine-1-carboxylate
  • Step 6 tert-butyl N- [5- (fluoromethyl) -3-methyl-3-piperidyl] carbamate
  • Step 4 1-benzyl 3-methyl 3, 4-dimethylpiperidine-1, 3-dicarboxylate
  • Step 5 1- ( (benzyloxy) carbonyl) -3, 4-dimethylpiperidine-3-carboxylic acid
  • Step 1 1- ( (benzyloxy) carbonyl) -3- ( (tert-butoxycarbonyl) amino) piperidine-3-carboxylic (isobutyl carbonic) anhydride
  • Step 2 benzyl 3- ( (tert-butoxycarbonyl) amino) -3-carbamoylpiperidine-1-carboxylate
  • Step 3 tert-butyl (3-carbamoylpiperidin-3-yl) carbamate
  • Step 1 tert-butyl 3- (dimethylamino) -3-methylpiperidine-1-carboxylate
  • Step 1 benzyl (R) -3- ( (tert-butoxycarbonyl) amino) -3-methylpiperidine-1-carboxylate
  • Step 4 benzyl (R) -3- ( (4-methoxybenzyl) (methyl) amino) -3-methylpiperidine-1-carboxylate
  • Step 4 1-benzyl 3-ethyl 5-fluoropiperidine-1, 3-dicarboxylate
  • Step 5 1-benzyl 3-ethyl (5S) -5-fluoro-3-methylpiperidine-1, 3-dicarboxylate (peak 1) and 1-benzyl 3-ethyl (5R) -5-fluoro-3-methylpiperidine-1, 3-dicarboxylate (peak 2)
  • Step 6 (5S) -1- ( (benzyloxy) carbonyl) -5-fluoro-3-methylpiperidine-3-carboxylic acid
  • Step 7 benzyl (5S) -3- ( ( (benzyloxy) carbonyl) amino) -5-fluoro-3-methylpiperidine-1-carboxylate
  • Step 1 1-benzyl 3-ethyl 4-oxopiperidine-1, 3-dicarboxylate
  • Step 4 1-benzyl 3-ethyl 4- (benzyloxy) -3-methylpiperidine-1, 3-dicarboxylate
  • Step 5 4- (benzyloxy) -1- ( (benzyloxy) carbonyl) -3-methylpiperidine-3-carboxylic acid
  • Step 6 benzyl 4- (benzyloxy) -3- ( ( (benzyloxy) carbonyl) amino) -3-methylpiperidine-1-carboxylate
  • Step 1 1-benzyl 3-ethyl 3-methyl-4-methylenepiperidine-1, 3-dicarboxylate
  • Step 2 1- ( (benzyloxy) carbonyl) -3-methyl-4-methylenepiperidine-3-carboxylic acid
  • Step 3 benzyl 3- ( (tert-butoxycarbonyl) amino) -3-methyl-4-methylenepiperidine-1-carboxylate
  • Step 4 benzyl 3- ( (tert-butoxycarbonyl) amino) -4- (hydroxymethyl) -3-methylpiperidine-1-carboxylate
  • Step 5 tert-butyl (4- (hydroxymethyl) -3-methylpiperidin-3-yl) carbamate
  • Step 1 1-benzyl 3-methyl 5- ( (methylsulfonyl) oxy) piperidine-1, 3-dicarboxylate
  • Step 4 benzyl 3- ( (tert-butoxycarbonyl) amino) -5- (hydroxymethyl) piperidine-1-carboxylate
  • Step 5 benzyl 3- ( (tert-butoxycarbonyl) amino) -5- ( ( (methylsulfonyl) oxy) methyl) piperidine-1-carboxylate
  • Step 6 benzyl 3- ( (tert-butoxycarbonyl) amino) -5- (cyanomethyl) piperidine-1-carboxylate
  • Step 7 tert-butyl (5- (cyanomethyl) piperidin-3-yl) carbamate
  • Step 1 Synthesis of 1-benzyl 3-ethyl 3- (difluoromethyl) piperidine-1, 3-dicarboxylate
  • Step 2 1- [ (benzyloxy) carbonyl] -3- (difluoromethyl) piperidine-3-carboxylic acid
  • Step 3 benzyl 3- ⁇ [ (benzyloxy) carbonyl] amino ⁇ -3- (difluoromethyl) piperidine-1-carboxylate
  • Step 1 1-benzyl 3-methyl 5- ( (tert-butyldiphenylsilyl) oxy) piperidine-1, 3-dicarboxylate
  • Step 2 1-benzyl 3-methyl 5- ( (tert-butyldiphenylsilyl) oxy) -3- (difluoro (trimethylsilyl) methyl) -piperidine-1, 3-dicarboxylate
  • Step 1 1-benzyl 3-methyl 5- ( (tert-butyldiphenylsilyl) -oxy) piperidine-1, 3-dicarboxylate (2.00 g, 3.76 mmol) in THF (20 mL) was added dropwise lithium bis (trimethylsilyl) amide (1 M, 15.1 mL) at-70°C. The mixture was stirred at this temperature for 1 h, and then [bromo (difluoro) methyl] -trimethyl-silane (3.82 g, 18.8 mmol) in THF (2 mL) was added dropwise at-70°C. The resulting mixture was stirred at-70°C for 1 h.
  • Step 4 1- ( (benzyloxy) carbonyl) -5- ( (tert-butyldiphenylsilyl) oxy) -3- (difluoromethyl) piperidine-3-carboxylic acid
  • Step 5 benzyl 3- ( ( (benzyloxy) carbonyl) amino) -5- ( (tert-butyldiphenylsilyl) oxy) -3- (difluoro-methyl) piperidine-1-carboxylate
  • Step 6 5- ( (tert-butyldiphenylsilyl) oxy) -3- (difluoromethyl) piperidin-3-amine
  • Step 3 1-benzyl 3-methyl 3- (difluoro (trimethylsilyl) methyl) -5-methylenepiperidine-1, 3-dicarboxylate
  • Step 4 1-benzyl 3-methyl 3- (difluoromethyl) -5-methylenepiperidine-1, 3-dicarboxylate
  • Step 5 1- ( (benzyloxy) carbonyl) -3- (difluoromethyl) -5-methylenepiperidine-3-carboxylic acid
  • Step 6 benzyl 3- ( ( (benzyloxy) carbonyl) amino) -3- (difluoromethyl) -5-methylenepiperidine-1-carboxylate
  • Step 7 benzyl 3- ( ( (benzyloxy) carbonyl) amino) -3- (difluoromethyl) -5- (hydroxymethyl) piperidine-1-carboxylate
  • Step 7 5- ( ( (tert-butyldiphenylsilyl) oxy) methyl) -3- (difluoromethyl) piperidin-3-amine
  • Step 1 2, 4, 7-tricholro-8-fluoropyrido [4, 3-d] pyrimidine
  • Step 3 7-chloro-8-fluoro-2- ( (tetrahydro-1H-pyrrolizin-7a (5H) -yl) methoxy) -4- (2- (trimethylsilyl) -ethoxy) pyrido [4, 3-d] pyrimidine
  • Step 4 8-fluoro-7- (3- (methoxymethoxy) -8- ( (triisopropylsilyl) ethynyl) naphthalen-1-yl) -2- ( (tetrahydro-1H-pyrrolizin-7a (5H) -yl) methoxy) -4- (2- (trimethylsilyl) ethoxy) pyrido [4, 3-d] pyrimidine
  • the resulting mixture was stirred at 85°C for 12 h under N 2 and then poured into water and extracted with ethyl acetate. The organic phase was dried sodium sulfate, filtered, and concentrated. The crude product was purified by silica gel column to obtain the title compound as a yellow solid (3.10 g, 56.6%) .
  • Step 5 7- (8-ethynyl-3- (methoxymethoxy) naphthalen-1-yl) -8-fluoro-2- ( (tetrahydro-1H-pyrrolizin-7a (5H) -yl) methoxy) pyrido [4, 3-d] pyrimidin-4-ol
  • Step 6 tert-butyl (1- (7- (8-ethynyl-3- (methoxymethoxy) naphthalen-1-yl) -8-fluoro-2- ( (tetrahydro-1H-pyrrolizin-7a (5H) -yl) methoxy) pyrido [4, 3-d] pyrimidin-4-yl) pyrrolidin-3-yl) carbamate
  • Step 7 4- (4- (3-aminopyrrolidin-1-yl) -8-fluoro-2- ( (tetrahydro-1H-pyrrolizin-7a (5H) -yl) methoxy) -pyrido [4, 3-d] pyrimidin-7-yl) -5-ethynylnaphthalen-2-ol
  • R 1 groups e.g., tert-butyl pyrrolidin- 3-ylcarbamate in step 6
  • compounds 22-65 are either commercially available or prepared as described in Intermediate 13-29 above.
  • Ring cores ⁇ e.g., 7- (8-ethynyl-3- (methoxymethoxy) -naphthalen-1-yl) -8-fluoro-2- ( (tetrahydro1H-pyrrolizin-7a (5H) -yl) methoxy) pyrido [4, 3-d] pyrimidin-4-ol in step 6 ⁇ were selected from Intermediate 6-12.
  • Step 1 tert-butyl 1- ( ( (R) -tert-butylsulfinyl) amino) -8-azaspiro [4.5] decane-8-carboxylate
  • Step 2 (R) -2-methyl-N- (8-azaspiro [4.5] decan-1-yl) propane-2-sulfinamide
  • Step 3 (R) -N- (8- (7- (8-ethynyl-3- (methoxymethoxy) naphthalen-1-yl) -8-fluoro-2- ( (tetrahydro-1H-pyrrolizin-7a (5H) -yl) methoxy) pyrido [4, 3-d] pyrimidin-4-yl) -8-azaspiro [4.5] decan-1-yl) -2-methylpropane-2-sulfinamide
  • Step 4 4- (4- (1-amino-8-azaspiro [4.5] decan-8-yl) -8-fluoro-2- ( (tetrahydro-1H-pyrrolizin-7a (5H) -yl) methoxy) pyrido [4, 3-d] pyrimidin-7-yl) -5-ethynylnaphthalen-2-ol

Abstract

La présente invention concerne certains dérivés quinazoliniques qui inhibent certaines protéines K-Ras et sont par conséquent utiles pour le traitement de cancers médiés par de telles protéines. L'invention concerne également des compositions pharmaceutiques contenant de tels composés et des procédés de préparation de tels composés. *****
PCT/CN2022/091243 2021-05-10 2022-05-06 Dérivés aminoquinazoliniques exocycliques utiles en tant qu'inhibiteurs de kras WO2022237649A1 (fr)

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