CN111362928A - 2, 4-diaminopyrimidine derivatives - Google Patents

2, 4-diaminopyrimidine derivatives Download PDF

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CN111362928A
CN111362928A CN201811594661.6A CN201811594661A CN111362928A CN 111362928 A CN111362928 A CN 111362928A CN 201811594661 A CN201811594661 A CN 201811594661A CN 111362928 A CN111362928 A CN 111362928A
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alkyl
halogen
heteroalkyl
cancer
alkynyl
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张磊
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Shanghai Zheye Biotechnology LLC
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Shanghai Zheye Biotechnology LLC
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Priority to PCT/CN2019/128246 priority patent/WO2020135489A1/en
Priority to CN201980086260.6A priority patent/CN113227080B/en
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/14—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
    • A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
    • A61K31/506—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P19/00—Drugs for skeletal disorders
    • A61P19/08—Drugs for skeletal disorders for bone diseases, e.g. rachitism, Paget's disease
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00—Antineoplastic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00—Antineoplastic agents
    • A61P35/02—Antineoplastic agents specific for leukemia
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P7/00—Drugs for disorders of the blood or the extracellular fluid

Abstract

The invention relates to a2, 4-diaminopyrimidine derivative, a pharmaceutically acceptable salt, a hydrate, a solvate or a stereoisomer thereof, a preparation method thereof and application of the compound in treating diseases with ALK2 kinase-mediated pathological characteristics by using the compound alone or in combination with other medicines.

Description

2, 4-diaminopyrimidine derivatives
Technical Field
The invention relates to a2, 4-diaminopyrimidine derivative, a pharmaceutically acceptable salt, a hydrate, a solvate or a stereoisomer thereof, a preparation method thereof and application of the compound in treating diseases with ALK2 kinase-mediated pathological characteristics by using the compound alone or in combination with other medicines.
Background
Systemic iron balance is maintained by the coordinated regulation of duodenal iron absorption, iron recycling by aged red blood cells in macrophages, and mobilization of stored iron in the liver (Ganz T., Physiol Rev.2013; 93(4): 1721-1741). A key coordinator in this process is a small peptide hormone synthesized primarily in hepatocytes, Hepcidin (Krause A. et al, FEBS Lett.2000; 480 (2-3): 147-) 150; Pigeon C. et al, J Biol chem.2001; 276(11): 7811-. Hepcidin reduces the uptake of duodenal iron and iron export from monocytes/macrophages by binding to and inducing internalization and degradation of ferroportin (FPN1) (Hentze MW. et al, cell. 2010; 142(1): 24-38; Nemeth E. et al, science.2004; 306(5704): 2090-. Thus, elevated serum hepcidin levels enhance iron storage in the reticuloendothelial system and result in a decrease in available iron and the production of iron deficient erythrocytes. Abnormally elevated Hepcidin expression causes severe functional iron deficiency anemia in humans and is central to the pathophysiology of Anemia of Chronic Disease (ACD) (Weiss G. et al, N Engl J Med.2005; 352(10): 1011-. The transcription of Hepcidin in the liver is mainly influenced by several factors, including storage of body iron, iron requirement for red blood cell production, hypoxia and inflammatory response. Bone Morphogenic Proteins (BMPs) play an important role in mediating these factors and driving hepcidin transcription induction by activating BMP receptor (BMPR) -SMAD signaling (Wang RH. et al, CellMetab.2005; 2(6): 399-. BMPR activin receptor-like kinase 2(ALK2) and ALK3 have shown an important role in this process, with liver-specific deletions of ALK2 or ALK3 blocking the induction of hepcidin production downstream of BMP ligand binding and leading to iron overload in mice (Steinbicker AU. et al, blood.2011; 118(15): 4224-.
Hepcidin, by degrading iron output, iron transporters reduce blood iron levels, leading to increased iron storage in macrophages and other cells, and making it unavailable for hemoglobin and red blood cell function.
BMP signaling pathways also play an important role in the growth and progression of tumor cells, particularly breast, prostate, and other tumors that are prone to bone metastasis (Lin Ye. et al, Front biosci.2011(16): 865-897). BMPs and BMPRs are more highly expressed in metastatic breast cancer than in non-metastatic, and also highly expressed in bone-metastatic prostate cancer. These results indicate that BMP inhibitors may be able to prevent bone metastasis.
Disclosure of Invention
The invention aims to provide a compound shown in a formula (I) or pharmaceutically acceptable salt, hydrate, solvate or stereoisomer thereof,
Figure BDA0001921081960000021
wherein:
x is- (CR)7R8)p-；
R1Selected from-H, halogen, -OH, -CN, -CF3、-CHF2、-CH2F、-OCF3、-(CH2)qNR9R10-、-CONR9R10、-NO2、-C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl, heteroalkyl, 3-to 8-membered cycloalkyl, saturated or unsaturated heterocyclyl, aryl or heteroaryl, wherein alkyl, alkenyl, alkynyl, heteroalkyl, cycloalkyl, heterocyclyl, aryl or heteroaryl may be optionally substituted;
R2selected from-H, halogen, -OH, -CN, -CF3、-CHF2、-CH2F、-OCF3、-(CH2)qNR9R10-、-CONR9R10、-NO2、-C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl, heteroalkyl, -OR9、-COR9、-COOR9or-NR9COR10Wherein alkyl, alkenyl, alkynyl or heteroalkyl may be optionally substituted;
R3、R4and R5Each independently selected from-H, halogen, -OH, -CN, -CF3、-CHF2、-CH2F、-OCF3、-(CH2)qNR9R10-、-CONR9R10、-NO2、-C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl, heteroalkyl, -OR9、-COR9、-COOR9、-SO2R9、-NR9COR10、-NR9CONR10R11、-NR9CO2R10、-NR9SO2NR10R11or-NR9SO2R10Wherein alkyl, alkenyl, alkynyl or heteroalkyl may be optionally substituted;
R6selected from-H, halogen, -OH, -CN, -CF3、-NO2、-C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl or heteroalkyl, wherein alkyl, alkenyl, alkynyl or heteroalkyl may be optionally substituted;
R7and R8Each independently selected from-H, halogen, -C1-6Alkyl, heteroalkyl, -C2-6Alkenyl, -C2-6Alkynyl, saturated or unsaturated heterocyclyl, oxo or 3-8 membered cycloalkyl; wherein the alkyl, alkenyl, alkynyl, heterocyclic or cycloalkyl group may be optionally substituted;
R9、R10and R11Each independently selected from-H, heteroalkyl, -C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl, 3-8 membered cycloalkyl, saturated or unsaturated heterocyclyl, aryl or heteroaryl; wherein (R)9And R10) And/or (R)10And R11) Together with the nitrogen atom to which they are attached form a group which may be substituted by at least one R12Substituted saturated or unsaturated heterocyclic ring;
each R12Each independently selected from-H, halogen, -C1-6Alkyl or oxo;
m is 0, 1,2 or 3;
p is 1,2 or 3;
q is 0, 1,2 or 3.
In another aspect, the invention provides a compound of formula (II),
Figure BDA0001921081960000031
wherein the content of the first and second substances,
x is- (CR)7R8)p-；
R1Selected from aryl or heteroaryl groups which may be optionally substituted;
R2selected from-H, halogen, -OH, -CN, -CF3、-CHF2、-CH2F、-OCF3、-(CH2)qNR9R10-、-CONR9R10、-NO2、-C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl, heteroalkyl, -OR9、-COR9、-COOR9or-NR9COR10Wherein alkyl, alkenyl, alkynyl or heteroalkyl may be optionally substituted;
R3、R4and R5Each independently selected from-H, halogen, -OH, -CN, -CF3、-CHF2、-CH2F、-OCF3、-(CH2)qNR9R10-、-CONR9R10、-NO2、-C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl, heteroalkyl, -OR9、-COR9、-COOR9、-SO2R9、-NR9COR10、-NR9CONR10R11、-NR9CO2R10、-NR9SO2NR10R11or-NR9SO2R10Wherein alkyl, alkenyl, alkynyl or heteroalkyl may be optionally substituted;
R6selected from-H, halogen, -OH, -CN, -CF3、-NO2、-C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl or heteroalkyl, wherein alkyl, alkenyl, alkynyl or heteroalkyl may be optionally substituted;
R7and R8Each independently selected from-H, halogen, -C1-6Alkyl, heteroAlkyl, -C2-6Alkenyl, -C2-6Alkynyl, saturated or unsaturated heterocyclyl, oxo or 3-8 membered cycloalkyl; wherein the alkyl, alkenyl, alkynyl, heterocyclic or cycloalkyl group may be optionally substituted;
R9、R10and R11Each independently selected from-H, heteroalkyl, -C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl, 3-8 membered cycloalkyl, saturated or unsaturated heterocyclyl, aryl or heteroaryl; wherein (R)9And R10) And/or (R)10And R11) Together with the nitrogen atom to which they are attached form a group which may be substituted by at least one R12Substituted saturated or unsaturated heterocyclic ring;
each R12Each independently selected from-H, halogen, -C1-6Alkyl or oxo;
p is 1,2 or 3;
q is 0, 1,2 or 3.
In another aspect, the invention provides a compound of formula (III),
Figure BDA0001921081960000041
wherein the content of the first and second substances,
x is- (CR)7R8)p-；
R1Is selected from heteroaryl which may be optionally substituted;
R2selected from-H, halogen or-C1-6An alkyl group; wherein alkyl may be selected from-H, halogen, -C1-4Alkyl or oxo;
R3and R4Each independently selected from-H, halogen, -OH, -CN, -CF3、-CHF2、-CH2F、-OCF3、-(CH2)qNR9R10-、-CONR9R10、-NO2、C1-6Alkyl radical, C2-6Alkenyl radical, C2-6Alkynyl, heteroalkyl, -OR9、-COR9、-COOR9、-SO2R9、-NR9COR10、-NR9CONR10R11、-NR9CO2R10、-NR9SO2NR10R11or-NR9SO2R10Wherein alkyl, alkenyl, alkynyl or heteroalkyl may be optionally substituted;
R6selected from-H, halogen, -OH, -CN, -CF3、-NO2、-C1-6An alkyl or heteroalkyl group, wherein the alkyl or heteroalkyl group may be optionally substituted;
R7and R8Each independently selected from-H, halogen, -C1-6Alkyl, heteroalkyl, -C2-6Alkenyl, -C2-6Alkynyl or oxo; wherein alkyl, alkenyl or alkynyl may be selected from-H, halogen, -C1-4Alkyl substituent substitution;
R9、R10and R11Each independently selected from-H, heteroalkyl, -C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl, 3-8 membered cycloalkyl, saturated or unsaturated heterocyclyl, aryl or heteroaryl; wherein (R)9And R10) And/or (R)10And R11) Together with the nitrogen atom to which they are attached form a group which may be substituted by at least one R12Substituted saturated or unsaturated heterocyclic ring;
each R12Each independently selected from-H, halogen, -C1-6Alkyl or oxo;
p is 1,2 or 3;
q is 0, 1,2 or 3.
In a further embodiment, the present invention provides a compound of formula (III), a pharmaceutically acceptable salt, hydrate, solvate, or stereoisomer thereof, wherein:
x is- (CR)7R8)p-；
R1Selected from pyridyl optionally substituted;
R2selected from-H, halogen or-C1-6An alkyl group; wherein alkyl may be selected from-H, halogen, -C1-4Alkyl or oxo;
R3and R4Each independently selected from-H, halogen, -C1-6Alkyl or heteroalkyl; wherein alkyl or heteroalkyl may be selected from-H, halogen, -C1-4Alkyl or oxo;
R6selected from-H, halogen, -OH, -CN, -C1-6Alkyl or-C1-6An alkoxy group; wherein alkyl or alkoxy may be selected from-H, halogen, -C1-4Alkyl or oxo;
R7and R8Each independently selected from-H, halogen, -C1-6Alkyl or-C1-6Alkoxy, wherein alkyl or alkoxy may be selected from-H, halogen or-C1-4Alkyl substituent substitution;
p is 1 or 2.
In a further embodiment, the present invention provides a compound of formula (III), a pharmaceutically acceptable salt, hydrate, solvate, or stereoisomer thereof, wherein:
x is- (CR)7R8)p-；
R1Is composed of
Figure BDA0001921081960000051
Wherein R is13Selected from-H, halogen, -OH, -CN, -CF3、-CHF2、-CH2F、-OCF3、-NO2、-NH2、-C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl or heteroalkyl;
R2selected from-H, halogen or C1-6An alkyl group;
R3and R4Each independently selected from-H, halogen, C1-6Alkyl or-C1-6Alkoxy, wherein alkyl or alkoxy may be selected from-H, halogen or-C1-4Alkyl or oxo;
R6selected from-H, halogen, -OH, -CN, -C1-6Alkyl or-C1-6An alkoxy group;
R7and R8Each independently selected from-H, halogen or-C1-6An alkyl group, a carboxyl group,wherein alkyl may be selected from-H, halogen or-C1-4Alkyl substituent substitution;
p is 1 or 2.
In a further embodiment, the present invention provides a compound of formula (III), a pharmaceutically acceptable salt, hydrate, solvate, or stereoisomer thereof, wherein:
x is- (CR)7R8)p-；
R1Is composed of
Figure BDA0001921081960000052
Wherein R is13Selected from-H, halogen or-C1-4An alkyl group;
R2is selected from-H or-C1-4An alkyl group;
R3is selected from-H, -C1-4Alkyl or-C1-4An alkoxy group;
R4is selected from-H or-C1-4An alkyl group;
R6selected from-H, halogen, -CN, -C1-4Alkyl or-C1-4An alkoxy group;
R7and R8Each independently selected from-H or-C1-4An alkyl group;
p is 1 or 2.
The present invention relates to typical compounds of formula (I) -formula (III) as follows, but is not limited to:
Figure BDA0001921081960000061
Figure BDA0001921081960000071
definition of
As used above and elsewhere herein, the following terms and abbreviations have the meanings defined below. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art.
Abbreviations Means of
ALK2 Activin receptor-like kinase 2
Hepcidin Hepcidin
FPN1 Membrane iron transport protein
ACD Anemia of chronic disease
BMPs Bone morphogenetic protein
BMPR Bone morphogenetic protein receptor
TGF-β Transforming growth factor- β
TLC Thin layer chromatography
Rf Ratio shift value
n-BuOH N-butanol
DCM Methylene dichloride
TFA Trifluoroacetic acid
EA Ethyl acetate
ADP Adenosine diphosphate
ATP Adenosine triphosphate
Ser/Thr Serine/threonine
The term "halogen" refers herein to-F, -Cl, -Br, and-I.
The term "alkyl" refers herein to an alkyl group that does not contain heteroatoms. Thus, the term includes straight chain alkyl groups such as methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl and the like. The term also includes branched isomers of branched alkyl groups, including but not limited to, for example, the following groups: -CH (CH)3)2、-CH(CH3)(CH2CH3)、-CH(CH2CH3)2、-C(CH3)3、-C(CH2CH3)3、-CH2CH(CH3)2、-CH2CH(CH3)(CH2CH3)、-CH2CH(CH2CH3)2、-CH2C(CH3)3、-CH2C(CH2CH3)3、-CH(CH3)-CH(CH3)(CH2CH3)、-CH2CH2CH(CH3)2、-CH2CH2CH(CH3)(CH2CH3)、-CH2CH2CH(CH2CH3)2、-CH2CH2C(CH3)3、-CH2CH2C(CH2CH3)3、-CH(CH3)CH2CH(CH3)2、-CH(CH3)CH(CH3)CH(CH3)2、-CH(CH2CH3)CH(CH3)CH(CH3)(CH2CH3) And the like. The term alkyl thus includes primary, secondary and tertiary alkyl groups.
The term "alkenyl" refers herein to an alkyl group as defined above wherein there is at least one point of unsaturation, i.e., wherein two adjacent carbon atoms are connected by a double bond, wherein the alkyl group is as defined herein
The term "alkynyl" is referred to herein as relating to an alkyl group wherein two adjacent carbon atoms are connected by a triple bond, wherein the alkyl group is as defined herein.
The term "heteroalkyl" refers herein to an alkyl group that includes at least one heteroatom.
The term "cycloalkyl" refers herein to a mono-or polycyclic carbocycloalkyl substituent. Including cyclic alkyl, alkenyl, and alkynyl groups. The cycloalkyl group can be monocyclic or polycyclic (e.g., containing fused, bridged, and/or spiro ring systems) in which the carbon atom is located either inside or outside of the ring system. The cycloalkyl group as a whole may have 3 to 14 ring atoms (e.g., 3 to 8 carbon atoms for monocyclic cycloalkyl groups and 7 to 14 carbon atoms for polycyclic cycloalkyl groups). Any suitable ring position of the cycloalkyl group can be covalently linked to the defined chemical structure. Examples of cycloalkyl groups include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, cyclohexadienyl, cycloheptatrienyl, norbornyl, norpinanyl, norcarane-yl, adamantyl, and spiro [4.5] decyl, and homologs and isomers thereof, and the like.
The term "heterocyclic" or "heterocycle" or "heterocyclyl" refers to a ring selected from: 4-12 membered monocyclic, bicyclic and tricyclic saturated and partially unsaturated rings containing at least one carbon atom in addition to 1,2, 3 or 4 heteroatoms selected from oxygen, sulfur and nitrogen. "heterocycle" also refers to a 5-7 membered heterocycle fused to a 5, 6 and/or 7 membered cycloalkyl, carbocyclic aromatic or heterocyclic aromatic ring and containing at least one heteroatom selected from N, O and S, provided that the point of attachment is on the heterocycle when the heterocycle is fused to a carbocyclic aromatic or heteroaromatic ring and the point of attachment may be on the cycloalkyl or heterocycle when the heterocycle is fused to a cycloalkyl.
"heterocycle" also refers to an aliphatic spirocycle containing at least one heteroatom selected from N, O and S, provided that the point of attachment is on the heterocycle. The ring may be saturated or contain at least one double bond (i.e., partially unsaturated). The heterocyclic ring may be substituted with oxo (oxo). The point of attachment may be a carbon or heteroatom in a heterocycle. Heterocycles are not heteroaryl as defined herein.
Examples of heterocycles include, but are not limited to (numbered from the preferred attachment position 1) 1-pyrrolidinyl, 2, 4-imidazolidinyl, 2, 3-pyrazolidinyl, 1-piperidinyl, 2-piperidinyl, 3-piperidinyl, 4-piperidinyl, 2, 5-piperidinyl, pyranyl, 2-morpholinyl, 3-morpholinyl, oxiranyl (oxiranyl), aziridinyl (aziridinyl), thietanyl (thiiranyl), azetidinyl, oxetanyl, thietanyl, 1, 2-dithianyl, 1, 3-dithianyl, dihydropyridinyl, tetrahydropyridinyl, thiomorpholinyl, thiaoxazolidinyl (thioxanyl), piperazinyl, homopiperazinyl, homopiperidinyl, azepanyl (azepanyl), oxepanyl (oxapinanyl), Thiepanyl (thiepanyl), 1, 4-oxathiepanyl, 1, 4-dioxepanyl, 1, 4-oxathiepanyl, 1, 4-oxazepanyl, 1, 4-dithiacycloheptyl, 1, 4-thiazepanyl and 1, 4-diazepin-1, 4-dithianyl, 1, 4-azathiepanyl, oxazepinyl, diazepin, thiazepinyl, dihydrothienyl, dihydropyranyl, dihydrofuranyl, tetrahydrofuranyl, tetrahydrothienyl, tetrahydrothiopyranyl, 1-pyrrolinyl, 2-pyrrolinyl, 3-pyrrolinyl, indolinyl, 2H-pyranyl, 4H-pyranyl, 1, 4-dioxanyl, 1, 3-dioxolanyl, 1, 4-dioxetyl, Pyrazolinyl, pyrazolidinyl, dithiinyl, dithiocyclopentyl, pyrazolylimidazolinyl, pyrimidinonyl, 1-dioxo-thiomorpholinyl, 3-azabicyclo [3.1.0] hexanyl, 3-azabicyclo [4.1.0] heptanyl, azabicyclo [2.2.2] hexanyl. Substituted heterocycles also include ring systems substituted with one or more oxo moieties, such as pyrimidinyl N-oxide, morpholinyl-N-oxide, 1-oxo-1-thiomorpholinyl, and 1, 1-dioxo-1-thiomorpholinyl.
The term "aryl" refers to an aromatic ring in which each atom forming the ring is a carbon atom. Aryl rings may be formed from five, six, seven, eight, nine, or more than nine carbon atoms. The aryl group may be optionally substituted. Examples of aryl groups include, but are not limited to, phenyl, naphthyl, phenanthryl, anthracyl, fluorenyl, and indenyl.
The term "heteroaryl" or alternatively "heteroaromatic group" refers to an aromatic group which includes one or more ring heteroatoms selected from nitrogen, oxygen and sulfur. The "heteroaromatic" or "heteroaryl" moiety containing N refers to an aromatic group in which at least one of the backbone atoms of the ring is a nitrogen atom. Illustrative examples of heteroaryl groups include the following moieties:
Figure BDA0001921081960000091
and the like. Depending on the structure, heteroaryl groups can be mono-or di-radical (i.e., heteroarylene groups).
The term "oxo" refers herein to (═ O) or (-O)-)。
The term "alkoxy" refers to a (alkyl) O-group, wherein alkyl is defined herein.
At various positions in this specification, substituents for the compounds of the invention are disclosed in the form of groups or ranges. This specifically means that the invention includes each member of such groups and ranges or each individual member of such membersAnd (4) sub-combination. Such as the term "C1-6Alkyl "specifically means that methyl, ethyl, C are disclosed separately3Alkyl radical, C4Alkyl radical, C5Alkyl and C6An alkyl group.
The term "compounds of the present invention" (unless specifically indicated otherwise) refers herein to compounds of formulae (I) - (III) and all pure and mixed stereoisomers, geometric isomers, tautomers, solvates, hydrates, prodrugs and isotopically labeled compounds and any pharmaceutically acceptable salts thereof. Solvates of the compounds of the invention refer to compounds or salts thereof, such as hydrates, ethanolates, methanolates, and the like, in combination with stoichiometric and non-stoichiometric amounts of solvent. The compound may also exist in one or more crystalline states, i.e., as co-crystals, polymorphs, or it may exist as an amorphous solid. All such forms are intended to be covered by the claims.
The term "pharmaceutically acceptable" means that the substance or composition must be compatible chemically and/or toxicologically with the other ingredients comprising the formulation and/or the mammal being treated therewith.
The term "stereoisomer" refers herein to compounds of different chirality having one or more stereocenters, including the enantiomers and diastereomers.
The compounds of the present invention may be used in the form of salts, such as "pharmaceutically acceptable salts" derived from inorganic or organic acids. These include, but are not limited to, the following: acetate, adipate, alginate, citrate, aspartate, benzoate, benzenesulfonate, bisulfate, butyrate, camphorate, camphorsulfonate, digluconate, cyclopentanepropionate, dodecylsulfate, ethanesulfonate, glucoheptanoate, glycerophosphate, hemisulfate, heptanoate, hexanoate, fumarate, hydrochloride, hydrobromide, hydroiodide, 2-hydroxyethanesulfonate, lactate, maleate, methanesulfonate, hydrochloride, 2-naphthalenesulfonate, oxalate, pectinate, sulfate, 3-phenylpropionate, picrate, pivalate, propionate, succinate, tartrate, thiocyanate, p-toluenesulfonate and decanoate. In addition, the basic nitrogen-containing groups can be quaternized with the following agents to form quaternary ammonium salts: such as lower alkyl halides including methyl, ethyl, propyl and butyl chlorides, bromides and iodides; such as dialkyl sulfates, including dimethyl, diethyl, dibutyl, and diamyl sulfates; such as long chain halides including decyl, lauryl, myristyl and stearyl chlorides, bromides and iodides; such as aralkyl halides, such as benzyl and phenethyl bromides, and the like.
The invention also includes isotopically-labelled compounds of the invention, i.e. those structures which are identical to those disclosed above, but in which one or more atoms are replaced by an atom having the same number of protons, but a different number of neutrons. Examples of isotopes that can be incorporated into compounds of the invention include isotopes of hydrogen, carbon, nitrogen, oxygen, sulfur, fluorine, chlorine, iodine, respectively2H、3H、13C、14C、15N、18O、17O、35S、18F、36Cl and131i, and the like. The compounds of the present invention, stereoisomers, tautomers or pharmaceutically acceptable salts thereof, as well as the compounds of the above forms containing the above isotopes and/or other atomic isotopes, are within the scope of the present invention. Certain isotopically-labelled compounds of the invention, e.g. by3H or14Those labeled with C can be used in drug tissue distribution assays, and thus, these3H or14The C isotope is particularly preferred because of its ease of preparation and detection. In addition, by heavier isotopes such as2Certain compounds of the invention substituted with H have certain therapeutic advantages due to their greater metabolic stability, such as increased in vivo half-life and lower dosages, and, therefore,2h is also preferred in some cases. Isotopically labeled compounds of formulae (I) - (III) of the present invention and prodrugs thereof can generally be prepared by substituting a readily available isotopically labeled reagent for a non-isotopically labeled reagent in carrying out the procedures disclosed in the schemes and/or in the examples and preparations below.
Another aspect of the present invention relates to a pharmaceutical composition comprising a therapeutically effective amount of a compound of formulae (I) - (III), or a pharmaceutically acceptable carrier, diluent or excipient thereof.
The invention further relates to application of the compounds in the general formulas (I) to (III) or pharmaceutically acceptable salts thereof or a pharmaceutical composition containing the compounds in preparation of medicines for preventing and/or treating diseases with ALK2 kinase-mediated pathological characteristics. Diseases with ALK2 kinase-mediated pathological features are selected from anemia or cancer.
The present invention also relates to a method for the therapeutic prevention and/or therapeutic prevention of a disease having an ALK2 kinase-mediated pathological feature, which comprises administering to a patient a therapeutically effective amount of a compound of the general formulae (I) - (III) or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition comprising the same, wherein the disease having an ALK2 kinase-mediated pathological feature is selected from anemia or cancer.
The present invention also relates to a method for the therapeutic prevention and/or therapeutic prevention of a disease having a pathological feature mediated by ALK2 kinase, which comprises administering to a patient a therapeutically effective amount of a compound of the general formulae (I) - (III) or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition comprising the same, wherein the disease having a pathological feature mediated by ALK2 kinase is selected from anemia, wherein the anemia is selected from anemia of chronic disease, anemia of chronic inflammation, cancer, or anemia of progressive fibrodysplasia.
The present invention also relates to a method for the treatment and/or prophylaxis of a disease having a pathological feature mediated by ALK2 kinase, which comprises administering to a patient a therapeutically effective amount of a compound of the general formulae (I) - (III) or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition comprising the same, wherein the disease having a pathological feature mediated by ALK2 kinase is selected from cancers, wherein the cancers are selected from prostate cancer, breast cancer, cervical cancer, endometrial cancer, colon cancer, gastric cancer, lung cancer, liver cancer, bladder cancer, pancreatic cancer, rectal cancer, skin cancer (including melanoma and basal cell carcinoma), oral cancer, bone cancer, ovarian cancer, brain cancer, head and neck cancer, mesothelial intimal cancer, leukemia, lymphoma, esophageal cancer, kidney cancer, thyroid cancer, myeloma, choriocarcinoma, testicular cancer, glioma, maternal glioma, cancer, and the like, Fallopian tube tumors, myelofibrosis, polycythemia vera, or essential thrombocythemia.
Process for producing compound or intermediate
Specific examples are set forth below to illustrate the invention. It is to be understood that the invention is not limited to these examples, which are provided solely to provide methods of practicing the invention and are not intended to limit the scope of the invention in any way.
The compounds provided herein can be prepared by standard synthetic methods well known in the art, and the general methods for preparing the compounds of the invention are provided herein. The starting materials are generally commercially available, for example, via Alfa
Figure BDA0001921081960000111
TCI, dynberg reagent, dywagnan chemical limited, dynocolon chemical reagent factory, and the like, or prepared by methods known to those skilled in the art.
The following reaction methods and synthetic steps provide possible routes for the synthesis of the compounds of the invention as well as key intermediates. For a more detailed description of the individual reaction steps, reference is made to the following examples. It will be appreciated by those skilled in the art that the compounds of the invention may also be obtained by other synthetic routes. Although specific starting materials and reagents are used in the reaction schemes below, these starting materials and reagents may be substituted with other similar starting materials or reagents to provide various derivatives. In addition, many of the compounds made by the methods described below may be further modified by conventional chemical methods well known to those skilled in the art, given the benefit of this disclosure.
The compounds of the invention and the corresponding preparation processes are further illustrated and exemplified below by means of examples and preparations. It is to be understood that although typical or preferred reaction conditions (e.g., reaction temperature, time, molar ratios of reactants, reaction solvent, and pressure, etc.) are given in the specific examples, other reaction conditions may be used by one skilled in the art. Optimal reaction conditions may vary with the particular reaction substrate or solvent used, but the conditions may be determined by one of skill in the art through routine optimization.
The starting materials, intermediates and compounds of the examples can be isolated and purified by conventional techniques such as precipitation, filtration, crystallization, evaporation, distillation and chromatography (e.g., column chromatography, TLC separation and purification).
Commercial solvents and reagents used in the test were used without specific indication, and were used without further purification or treatment after purchase. The reaction conditions (reaction temperature, reaction solvent, molar ratio of reactants, or/and reaction duration) may be different when referring to other examples or synthetic methods. In general, the progress of the reaction can be monitored by TLC, whereby the reaction is terminated and worked up at a suitable time. The purification conditions of the compounds may also vary, generally speaking, according to R of TLCfThe appropriate column chromatography eluent is selected or the corresponding compound is isolated and purified by preparative TLC.
The compounds of formula (I) of the present invention can be prepared according to scheme 1 below. The intermediate A and the intermediate B react under the acidic condition (trifluoroacetic acid, formic acid, acetic acid, oxalic acid, diluted hydrochloric acid and the like) or the basic condition (such as triethylamine, N-diisopropylethylamine, pyridine, 4-dimethylaminopyridine, N-methylmorpholine and the like) in a proper solvent (N-butyl alcohol, methanol, ethanol, dichloromethane, tetrahydrofuran, dioxane, dimethylformamide, 1-methyl-2-pyrrolidone and the like) at a proper temperature to generate the compound shown in the formula (I). It will be appreciated that these reaction conditions are not limiting and that the process described can be used to prepare compounds of formula (I) by varying the reaction conditions reasonably. Wherein R is1、R2、R3、R4、R5、R6M and X have the definitions as described herein and L is a leaving group.
Scheme 1
Figure BDA0001921081960000121
The following examples are intended to illustrate specific embodiments of the invention and are not intended to limit the scope of the invention described or claimed in any way. One skilled in the art will recognize that the starting materials may be varied and additional steps may be employed to produce compounds encompassed by the present invention, as demonstrated in the examples below. The following examples are for illustrative purposes only and are not intended to, nor should they be construed as, limiting the invention in any way. Those skilled in the art will recognize that variations and modifications can be made without departing from the spirit or scope of the invention.
4 2EXAMPLE 1 preparation of N- (2,2' -bipyridin-3-yl) -N- (7-methoxybenzo [ d ]][1,3]Dioxolane En-5-yl) pyrimidine-2, 4-diamines (Compound 1)
Figure BDA0001921081960000122
Figure BDA0001921081960000131
In a round-bottomed flask, N- (2-chloropyrimidin-4-yl) -2, 2' -bipyridin-3-amine (100mg, 0.35mmol) (preparation method refer to WO2014151871A2), 7-methoxybenzo [ d ] was successively charged][1,3]Dioxol-5-amine (88.4mg, 0.53mmol) (preparation method is referenced J.Chin.chem.Soc.,2001,48,59-63), TFA (157uL, 2.11mmol) and 5mL n-BuOH, reacted at 85 ℃ under argon protection for 1.5 h.1H NMR(DMSO-d6,400MHz,ppm):δ＝12.86(s,1H),9.22-9.18(m,2H),8.79-8.78(m,1H),8.58-8.56(d,J＝8.2Hz,1H),8.37-8.35(dd,J＝4.4,1.4Hz,1H),8.13-8.12(d,J＝5.7Hz,1H),8.08-8.04(m,1H),7.56-7.52(m,1H),7.43-7.40(m,1H),7.17(s,1H),6.96(s,1H),6.48-6.46(d,J＝5.7Hz,1H),5.95(s,2H),3.79(s,3H).ESI-MS m/z：415.4[M+H]+.
4 2Practice ofEXAMPLE 2 preparation of N- (2,2' -bipyridin-3-yl) -N- (8-methoxy-2, 3-dihydrobenzo [ b ]][1,4]II Oxocyn-6-yl) pyrimidine-2, 4-diamine (Compound 2)
Figure BDA0001921081960000132
4 2Preparation of N- (2,2' -bipyridin-3-yl) -N- (8-methoxy-2, 3-dihydrobenzo [ b ]][1,4]Dioxa-cyclohexane En-6-yl) pyrimidine-2, 4-diamines (Compound 2)
Figure BDA0001921081960000141
In a round-bottomed flask, N- (2-chloropyrimidin-4-yl) -2, 2' -bipyridin-3-amine (100mg, 0.35mmol), 8-methoxy-2, 3-dihydrobenzo [ b ] was added in this order][1,4]Dioxin-6-amine (96mg, 0.53mmol) (preparation method refer to j. chi. chem. soc.,2001,48,59-63 and j.med. chem.2004,47,3823-3842), TFA (157uL, 2.11mmol) and 3mL of n-BuOH, reacted at 85 ℃ under argon protection for 1h, reaction was terminated, cooled to room temperature, water was added, DCM (20mL × 3) was extracted, the organic layer was dried over anhydrous sodium sulfate, the solvent was removed, and compound 2(115mg, white solid, yield 76.7%) was obtained by purification through silica gel column (DCM: MeOH ═ 50: 1).1H NMR(CDCl3,400MHz,ppm):δ＝12.87(s,1H),9.12-9.09(dd,J＝8.5,1.2Hz,1H),8.64-8.61(m,2H),8.32-8.30(dd,J＝4.4,1.3Hz,1H),8.09-8.07(d,J＝5.7Hz,1H),7.91-7.85(m,1H),7.35-7.31(m,1H),7.28-7.25(m,2H),6.84-6.83(d,J＝2.3Hz,1H),6.75-6.74(d,J＝2.3Hz,1H),6.24-6.22(d,J＝5.7Hz,1H),4.34-4.29(m,4H),3.81(s,3H).13C NMR(CDCl3,100MHz,ppm):δ＝160.6,160.1,158.4,156.6,148.7,146.3,143.9,141.7,139.6,137.4,137.3,132.7,129.1,128.8,124.1,123.4,122.9,102.8,100.5,98.5,64.5,56.2.ESIMS(M+H)+＝429.4.
2 4Example 3 preparation of N- (7-methoxybenzo [ d ]][1,3]Dioxol-5-yl) -N- (6-methyl-2, 2' -Bipyridin-3-yl) pyrimidine-2, 4-diamine (Compound 3)
Figure BDA0001921081960000142
Referring to the preparation scheme of scheme 1, compound 3, ESI-MS: 429.4[ M + H]+。
4 2Example 4 preparation of N- (2,2' -bipyridin-3-yl) -5-chloro-N- (7-methoxybenzo [ d][1,3]Dioxa medicine Cyclopenten-5-yl) pyrimidine-2, 4-diamine (Compound 4)
Figure BDA0001921081960000151
Referring to the preparation scheme of scheme 1, compound 4, ESI-MS: 449.3[ M + H ]]+。
4 2EXAMPLE 5 preparation of N- (2,2' -bipyridin-3-yl) -5-methoxy-N- (8-methoxy-2, 3-dihydrobenzo [b][1,4]Dioxin-6-yl) pyrimidine-2, 4-diamine (Compound 5)
Figure BDA0001921081960000152
Referring to the preparation scheme of scheme 1, compound 5, ESI-MS: 459.3[ M + H]+。
4 2Example 6 preparation of N- (2,2' -bipyridin-3-yl) -N- (7-methoxy-2, 2-dimethylbenzo [ d][1,3] Dioxolen-5-yl) pyrimidine-2, 4-diamines (Compound 6)
Figure BDA0001921081960000153
Referring to the preparation scheme of scheme 1, compound 6, ESI-MS: 443.2[ M + H]+。
Biological assay
1. Test for inhibitory Activity of Compound on ALK2
Preparing a tested compound into 5mM mother liquor by DMSO, adding 1 mu L of 5mM mother liquor into 99 mu L of 1xKinase buffer, and diluting to 50000nM concentration; then 20. mu.L of the concentrated solution is taken and addedA5-fold dilution was performed in 80. mu.L of 1xKinase buffer (containing 1% DMSO) to obtain a concentration of 10000nM, and 6 concentration gradients were set up. mu.L of each concentration of test compound was added to 384 well plates followed by 2. mu.L of Kinase solution (160mM Tris, 7.5; 80mM MgCl) per well2(ii) a 0.4mg/ml BSA; 200 μ M DTT; ALK2 kinase), centrifugation at 1000rpm for 20s at room temperature, and incubation at 25 ℃ for 30 min; subsequently, 2. mu.L of a mixture containing ATP and kinase substrate was added to each well, centrifuged at 1000rpm for 20s at room temperature, and incubated at 25 ℃ for 120 min. Then 5. mu.L of ADP-Glo per well was addedTMReagents, incubated at 25 ℃ for 40 min; finally, 10. mu.L of kinase detection solution (KinaseDetection Reagent) is added into each well, and the mixture is incubated at 25 ℃ for 30min and then detected; chemiluminescence values (luminescence) were recorded with a microplate reader, IC of the test substances on ALK2 kinase activity was calculated using Origin7.5 fitting curve50(nM) values.
Table 1 results of the test for inhibitory activity of compounds on ALK 2.
Figure BDA0001921081960000161
Compound I is compound 12 of the patent prepared according to WO2014151871a 2.
IC A, B, C in Table 150The value ranges are respectively: a is less than or equal to 150nM and 150nM<B<500nM，C≥500nM。
Test results show that the compound of the embodiment of the invention has a remarkable inhibitory effect on ALK2 kinase.
2. Inhibition assay of Compounds on Hepcidin (Hepcidin) expression in HepG2 cells
Exponential growth phase HepG2 cell (ATCC HB-8065)TM) The cells were inoculated into 96-well plates at 5000 cells/well and after 24 hours of adherent culture, test compounds were added to each well at a gradient concentration starting with 10 μ M, diluted 5-fold, 8 gradients in DMSO, diluted in culture medium. After another 48 hours of incubation, the 96-well plates were centrifuged at room temperature, the supernatant was cultured and incubated with Hepcidin ELISA Kit (Human Hepcidin Quantikine ELISA Kit, R)&D systems, Cat # DHP250) to quantitatively detect hepcidin protein. Taking 50 mu L of culture supernatant sample, and enzyme-labeling in 96-wellIncubating the plate with 50 μ L detection buffer solution at room temperature for 2 hr, washing, developing, measuring absorbance at 450nm with enzyme-labeling instrument (Varioskan LUX, ThermoFisher), calculating hepcidin protein concentration in the detection sample according to calibration curve of human hepcidin protein determination, fitting the curve with Origin7.5 software, and calculating IC of test compound for inhibiting HepG2 cell from generating hepcidin protein50Values (nM).
TABLE 2 results of compounds tested for inhibitory activity against Hepcidin in HepG2 cells.
Figure BDA0001921081960000162
Compound I is compound 12 of the patent prepared according to WO2014151871a 2.
IC A, B, C in Table 150The value ranges are respectively: a is less than or equal to 200nM and 200nM<B<500nM，C≥500nM。
Test results show that the compounds of the embodiment of the invention have a remarkable inhibiting effect on the expression of Hepcidin in HepG2 cells.

Claims (16)

1. A compound of formula (I):
Figure FDA0001921081950000011
a pharmaceutically acceptable salt, hydrate, solvate, or stereoisomer thereof, wherein:
x is- (CR)7R8)p-；
R1Selected from-H, halogen, -OH, -CN, -CF3、-CHF2、-CH2F、-OCF3、-(CH2)qNR9R10-、-CONR9R10、-NO2、-C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl, heteroalkyl, 3-to 8-membered cycloalkyl, saturated or unsaturated heterocyclyl, aryl or heteroaryl, wherein alkyl, alkenyl, alkynyl, heteroalkyl, cycloalkyl, heterocyclyl, aryl or heteroaryl may be substituted with anySubstitution;
R2selected from-H, halogen, -OH, -CN, -CF3、-CHF2、-CH2F、-OCF3、-(CH2)qNR9R10-、-CONR9R10、-NO2、-C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl, heteroalkyl, -OR9、-COR9、-COOR9or-NR9COR10Wherein alkyl, alkenyl, alkynyl or heteroalkyl may be optionally substituted;
R3、R4and R5Each independently selected from-H, halogen, -OH, -CN, -CF3、-CHF2、-CH2F、-OCF3、-(CH2)qNR9R10-、-CONR9R10、-NO2、-C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl, heteroalkyl, -OR9、-COR9、-COOR9、-SO2R9、-NR9COR10、-NR9CONR10R11、-NR9CO2R10、-NR9SO2NR10R11or-NR9SO2R10Wherein alkyl, alkenyl, alkynyl or heteroalkyl may be optionally substituted;
R6selected from-H, halogen, -OH, -CN, -CF3、-NO2、-C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl or heteroalkyl, wherein alkyl, alkenyl, alkynyl or heteroalkyl may be optionally substituted;
R7and R8Each independently selected from-H, halogen, -C1-6Alkyl, heteroalkyl, -C2-6Alkenyl, -C2-6Alkynyl, saturated or unsaturated heterocyclyl, oxo or 3-8 membered cycloalkyl; wherein the alkyl, alkenyl, alkynyl, heterocyclic or cycloalkyl group may be optionally substituted;
R9、R10and R11Each independently selected from-H, heteroalkyl, -C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl, 3-8 membered cycloalkyl, saturated or unsaturated heterocyclyl, aryl or heteroaryl; wherein (R)9And R10) And/or (R)10And R11) Together with the nitrogen atom to which they are attached form a group which may be substituted by at least one R12Substituted saturated or unsaturated heterocyclic ring;
each R12Each independently selected from-H, halogen, -C1-6Alkyl or oxo;
m is 0, 1,2 or 3;
p is 1,2 or 3;
q is 0, 1,2 or 3.
2. The compound of claim 1, a pharmaceutically acceptable salt, hydrate, solvate, or stereoisomer thereof, wherein the compound is according to formula (II):
Figure FDA0001921081950000021
x is- (CR)7R8)p-；
R1Selected from aryl or heteroaryl groups which may be optionally substituted;
R2selected from-H, halogen, -OH, -CN, -CF3、-CHF2、-CH2F、-OCF3、-(CH2)qNR9R10-、-CONR9R10、-NO2、-C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl, heteroalkyl, -OR9、-COR9、-COOR9or-NR9COR10Wherein alkyl, alkenyl, alkynyl or heteroalkyl may be optionally substituted;
R3、R4and R5Each independently selected from-H, halogen, -OH, -CN, -CF3、-CHF2、-CH2F、-OCF3、-(CH2)qNR9R10-、-CONR9R10、-NO2、-C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl, heteroalkyl, -OR9、-COR9、-COOR9、-SO2R9、-NR9COR10、-NR9CONR10R11、-NR9CO2R10、-NR9SO2NR10R11or-NR9SO2R10Wherein alkyl, alkenyl, alkynyl or heteroalkyl may be optionally substituted;
R6selected from-H, halogen, -OH, -CN, -CF3、-NO2、-C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl or heteroalkyl, wherein alkyl, alkenyl, alkynyl or heteroalkyl may be optionally substituted;
R7and R8Each independently selected from-H, halogen, -C1-6Alkyl, heteroalkyl, -C2-6Alkenyl, -C2-6Alkynyl, saturated or unsaturated heterocyclyl, oxo or 3-8 membered cycloalkyl; wherein the alkyl, alkenyl, alkynyl, heterocyclic or cycloalkyl group may be optionally substituted;
R9、R10and R11Each independently selected from-H, heteroalkyl, -C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl, 3-8 membered cycloalkyl, saturated or unsaturated heterocyclyl, aryl or heteroaryl; wherein (R)9And R10) And/or (R)10And R11) Together with the nitrogen atom to which they are attached form a group which may be substituted by at least one R12Substituted saturated or unsaturated heterocyclic ring;
each R12Each independently selected from-H, halogen, -C1-6Alkyl or oxo;
p is 1,2 or 3;
q is 0, 1,2 or 3.
3. The compound of claim 2, a pharmaceutically acceptable salt, hydrate, solvate, or stereoisomer thereof, wherein the compound is according to formula (III):
Figure FDA0001921081950000031
x is- (CR)7R8)p-；
R1Is selected from heteroaryl which may be optionally substituted;
R2selected from-H, halogen or-C1-6An alkyl group; wherein alkyl may be selected from-H, halogen, -C1-4Alkyl or oxo;
R3and R4Each independently selected from-H, halogen, -OH, -CN, -CF3、-CHF2、-CH2F、-OCF3、-(CH2)qNR9R10-、-CONR9R10、-NO2、C1-6Alkyl radical, C2-6Alkenyl radical, C2-6Alkynyl, heteroalkyl, -OR9、-COR9、-COOR9、-SO2R9、-NR9COR10、-NR9CONR10R11、-NR9CO2R10、-NR9SO2NR10R11or-NR9SO2R10Wherein alkyl, alkenyl, alkynyl or heteroalkyl may be optionally substituted;
R6selected from-H, halogen, -OH, -CN, -CF3、-NO2、-C1-6An alkyl or heteroalkyl group, wherein the alkyl or heteroalkyl group may be optionally substituted;
R7and R8Each independently selected from-H, halogen, -C1-6Alkyl, heteroalkyl, -C2-6Alkenyl, -C2-6Alkynyl or oxo; wherein alkyl, alkenyl or alkynyl may be selected from-H, halogen, -C1-4Alkyl substituent substitution;
R9、R10and R11Each independently selected from-H, heteroalkyl, -C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl, 3-8 membered cycloalkyl, saturated or unsaturated heterocyclyl, aryl or heteroaryl; wherein (R)9And R10) And/or (R)10And R11) Together with themThe nitrogen atoms to which they are attached together form a ring which may be substituted by at least one R12Substituted saturated or unsaturated heterocyclic ring;
each R12Each independently selected from-H, halogen, -C1-6Alkyl or oxo;
p is 1,2 or 3;
q is 0, 1,2 or 3.
4. The compound of claim 3, a pharmaceutically acceptable salt, hydrate, solvate, or stereoisomer thereof, wherein:
x is- (CR)7R8)p-；
R1Selected from pyridyl optionally substituted;
R2selected from-H, halogen or-C1-6An alkyl group; wherein alkyl may be selected from-H, halogen, -C1-4Alkyl or oxo;
R3and R4Each independently selected from-H, halogen, -C1-6Alkyl or heteroalkyl; wherein alkyl or heteroalkyl may be selected from-H, halogen, -C1-4Alkyl or oxo;
R6selected from-H, halogen, -OH, -CN, -C1-6Alkyl or-C1-6An alkoxy group; wherein alkyl or alkoxy may be selected from-H, halogen, -C1-4Alkyl or oxo;
R7and R8Each independently selected from-H, halogen, -C1-6Alkyl or-C1-6Alkoxy, wherein alkyl or alkoxy may be selected from-H, halogen or-C1-4Alkyl substituent substitution;
p is 1 or 2.
5. The compound of claim 4, a pharmaceutically acceptable salt, hydrate, solvate, or stereoisomer thereof, wherein:
x is- (CR)7R8)p-；
R1Is composed of
Figure FDA0001921081950000041
Wherein R is13Selected from-H, halogen, -OH, -CN, -CF3、-CHF2、-CH2F、-OCF3、-NO2、-NH2、-C1-6Alkyl, -C2-6Alkenyl, -C2-6Alkynyl or heteroalkyl;
R2selected from-H, halogen or C1-6An alkyl group;
R3and R4Each independently selected from-H, halogen, C1-6Alkyl or-C1-6Alkoxy, wherein alkyl or alkoxy may be selected from-H, halogen or-C1-4Alkyl or oxo;
R6selected from-H, halogen, -OH, -CN, -C1-6Alkyl or-C1-6An alkoxy group;
R7and R8Each independently selected from-H, halogen or-C1-6Alkyl, wherein alkyl may be selected from-H, halogen or-C1-4Alkyl substituent substitution;
p is 1 or 2.
6. The compound of claim 5, a pharmaceutically acceptable salt, hydrate, solvate, or stereoisomer thereof, wherein:
x is- (CR)7R8)p-；
R1Is composed of
Figure FDA0001921081950000042
Wherein R is13Selected from-H, halogen or-C1-4An alkyl group;
R2is selected from-H or-C1-4An alkyl group;
R3is selected from-H, -C1-4Alkyl or-C1-4An alkoxy group;
R4is selected from-H or-C1-4An alkyl group;
R6selected from-H, halogen, -CN, -C1-4Alkyl or-C1-4An alkoxy group;
R7and R8Each independently selected from-H or-C1-4An alkyl group;
p is 1 or 2.
7. The compound of claims 1 to 6, a pharmaceutically acceptable salt, hydrate, solvate, or stereoisomer thereof, selected from:
Figure FDA0001921081950000051
Figure FDA0001921081950000061
8. the compound of claims 1 to 7, pharmaceutically acceptable salt, hydrate, solvate, or stereoisomer thereof, selected from:
Figure FDA0001921081950000062
9. a process for the preparation of a compound of formula (I), a stereoisomer, a tautomer or a pharmaceutically acceptable salt thereof, according to any one of claims 1 to 8, comprising the steps of:
Figure FDA0001921081950000063
wherein R is1、R2、R3、R4、R5And R6As defined in claim 1;
the intermediate A and the intermediate B react under acidic or basic conditions in a suitable solvent at a suitable temperature to generate the compound of the formula (I).
10. A pharmaceutical composition comprising a therapeutically effective amount of a compound according to any one of claims 1 to 8, or a pharmaceutically acceptable carrier, diluent or excipient thereof.
11. Use of a compound according to any one of claims 1 to 8, or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition according to claim 10, for the manufacture of a medicament for the prevention and/or treatment of a disease having a pathological feature mediated by ALK2 kinase.
12. The use according to claim 11, wherein the disease having pathological features mediated by ALK2 kinase is anemia.
13. The use according to claim 11, wherein the disease having pathological features mediated by ALK2 kinase is cancer.
14. A method for the therapeutic prevention and/or therapeutic prevention of a disease having a pathological feature mediated by ALK2 kinase, comprising administering to a patient a therapeutically effective amount of a compound according to any one of claims 1-8, or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition according to claim 10, wherein the disease having a pathological feature mediated by ALK2 kinase is selected from anemia or cancer.
15. A method for the therapeutic prevention and/or therapeutic prevention of a disease having a pathological feature mediated by ALK2 kinase, comprising administering to a patient a therapeutically effective amount of a compound according to any one of claims 1 to 8, or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition according to claim 10, wherein the disease having a pathological feature mediated by ALK2 kinase is anemia, wherein the anemia is selected from anemia of chronic disease, anemia of chronic inflammation, cancer, or anemia of progressive fibrodysplasia.
16. A method for the treatment and/or prophylaxis of a disease having a pathological feature mediated by ALK2 kinase, comprising administering to a patient a therapeutically effective amount of a compound according to any one of claims 1 to 8, or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition according to claim 10, wherein the disease having a pathological feature mediated by ALK2 kinase is a cancer, wherein the cancer is selected from the group consisting of prostate cancer, breast cancer, cervical cancer, endometrial cancer, colon cancer, gastric cancer, lung cancer, liver cancer, bladder cancer, pancreatic cancer, rectal cancer, skin cancer (including melanoma and basal cell carcinoma), oral cancer, bone cancer, ovarian cancer, brain cancer, head and neck cancer, mesothelial intimal cancer, leukemia, lymphoma, esophageal cancer, renal cancer, thyroid cancer, myeloma, choriocarcinoma, testicular cancer, glioma, maternal glioma, or prostate cancer, Fallopian tube tumors, myelofibrosis, polycythemia vera, or essential thrombocythemia.
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