WO2022142731A1 - 一种抗病毒化合物及其制备方法 - Google Patents

一种抗病毒化合物及其制备方法 Download PDF

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WO2022142731A1
WO2022142731A1 PCT/CN2021/128948 CN2021128948W WO2022142731A1 WO 2022142731 A1 WO2022142731 A1 WO 2022142731A1 CN 2021128948 W CN2021128948 W CN 2021128948W WO 2022142731 A1 WO2022142731 A1 WO 2022142731A1
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formula
virus
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王伟
陆永章
谭进辉
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广东中科药物研究有限公司
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D277/00Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
    • C07D277/02Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
    • C07D277/20Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D277/32Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D277/38Nitrogen atoms
    • C07D277/50Nitrogen atoms bound to hetero atoms
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P11/00Drugs for disorders of the respiratory system
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P11/00Drugs for disorders of the respiratory system
    • A61P11/02Nasal agents, e.g. decongestants
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P11/00Drugs for disorders of the respiratory system
    • A61P11/04Drugs for disorders of the respiratory system for throat disorders
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/12Antivirals
    • A61P31/14Antivirals for RNA viruses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/12Antivirals
    • A61P31/14Antivirals for RNA viruses
    • A61P31/16Antivirals for RNA viruses for influenza or rhinoviruses
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    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/6536Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having nitrogen and sulfur atoms with or without oxygen atoms, as the only ring hetero atoms
    • C07F9/6539Five-membered rings

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  • the invention belongs to the field of medicine, and in particular relates to an antiviral compound and a preparation method thereof.
  • Influenza virus is referred to as influenza virus. It is divided into three types: A (A), B (B), and C (C). Influenza viruses discovered in recent years will be classified as type D (D). Influenza virus can cause infection and disease in humans, birds, pigs, horses, bats and other animals, and is the pathogen of human and animal diseases such as human influenza, avian influenza, swine influenza, and equine influenza.
  • Influenza viruses are mainly spread through airborne droplets, contact between susceptible and infected persons, or contact with contaminated items. Generally, autumn and winter are the high incidence period. Human influenza is mainly caused by influenza A and B viruses. Influenza A virus frequently undergoes antigenic variation and can be further divided into subtypes such as H1N1, H3N2, H5N1, and H7N9 (where H and N represent the two surface glycoproteins of influenza virus, respectively). Influenza viruses are not very resistant to the outside world. Animal influenza viruses do not usually infect humans, and human influenza viruses do not usually infect animals, with the exception of pigs. Pigs can be infected with both human and avian influenza viruses, but they are mainly infected with swine influenza viruses. A small number of animal influenza viruses can cause a human influenza pandemic after being adapted to humans.
  • SARS severe acute respiratory syndrome
  • MERS Middle East respiratory syndrome
  • Influenza A (H1N1) is a highly contagious acute respiratory disease of swine caused by one or more swine influenza A viruses. Morbidity tends to be high, but mortality is low (1 to 4%). The virus spreads in herds through aerosols, direct and indirect contact, and asymptomatic pigs that carry the virus. Swine outbreaks can occur throughout the year. Incidence increases during autumn and winter in temperate zones. Influenza A (H1N1) in humans usually comes from infected pigs, but some human cases have no history of contact with pigs or their environment. Human-to-human transmission has occurred in some cases, but limited to close contacts and people in closed settings.
  • Coronavirus (HCoV-229E) is a type of coronavirus. Coronaviruses belong to the order Nesteviridae, the family Coronaviridae, and the genus Coronaviridae. They are a large virus family that exists widely in nature. Coronaviruses only infect vertebrates and are associated with a variety of diseases in humans and animals, and can cause respiratory, gastrointestinal and nervous system diseases in humans and animals.
  • the object of the present invention is to provide a compound represented by formula I and pharmaceutically acceptable salts and solvates thereof.
  • n an integer of 0-5, such as 1, 2, 3;
  • R 1 is selected from: mono- or poly-substituted H, F, methyl, trifluoromethyl, preferably H;
  • R 2 is selected from: H, straight-chain or substituted alkane (C1-C6), preferably methyl, isopropyl;
  • R 3 is selected from: mono- or poly-substituted H, Cl, Br, F, preferably Cl;
  • R 4 and R 5 are independently selected from any one of the following groups: (C 1 -C 6 ) alkyl, (C 3 -C 8 ) carbocyclyl alkyl, substituted (C 1 -C 8 ) C 18 ) alkane, (C 2 -C 8 ) alkenyl, substituted (C 2 -C 8 ) alkenyl, (C 2 -C 8 ) alkynyl, substituted (C 2 -C 8 ) ) alkynyl, (C 6 -C 20 ) aryl, substituted (C 6 -C 20 ) aryl, (C 2 -C 20 ) heterocyclic, substituted (C 2 -C 20 ) Heterocyclyl; or R 4 and R 5 form a ring with each other to form (C 3 -C 8 )heterocycloalkyl or substituted (C 3 -C 8 )heterocycloalkyl, (C 6 -C 20 )heter
  • R 4 and R 5 are selected from at least one of the following: methyl, ethyl, isopropyl, pyrrolyl, piperidinyl, morpholinyl and piperazinyl.
  • the (C 3 -C 8 )heterocycloalkyl may in particular be pyrrolyl, piperidinyl, morpholinyl or piperazinyl.
  • the compound shown in formula I of the present invention can be enumerated as the structure shown below, but is not limited to the following structure:
  • the present invention also provides a preparation method of the compound represented by the above formula I.
  • R 2 in formula a is the same as formula I;
  • R 2 in formula b is the same as formula a;
  • R 1 in formula e is the same as formula I;
  • R 1 in formula c is the same as formula e, and the definition of R 2 is the same as formula b;
  • R 3 in formula f is the same as formula I
  • the definitions of R 1 and R 2 in formula d are the same as formula c
  • the definition of R 3 is the same as formula f;
  • n, R 4 and R 5 in formula g are the same as those of formula I.
  • the reaction conditions of the reaction are: the reaction temperature is 50-100 ° C, and the reaction time is 24-72 hours; the reaction is carried out in a solvent, and the solvent can be methanol, ethanol, tetrahydrofuran, acetonitrile, etc., preferably Ethanol.
  • the reaction conditions of the condensation reaction are: the reaction temperature is 50-100 ° C, the reaction time is 1-3 hours; the reaction is carried out in a solvent, and the solvent can be methanol, ethanol, tetrahydrofuran, acetonitrile, etc., Ethanol is preferred.
  • the reaction conditions of the ring-closing reaction are: the reaction temperature is 50-100 ° C, and the reaction time is 3-6 hours; the reaction is carried out in a solvent, and the solvent can be methanol, ethanol, tetrahydrofuran, acetonitrile, etc. , preferably ethanol.
  • the reaction conditions of the condensation reaction are: the reaction temperature is 0-25°C, and the reaction time is 2-8 hours; the reaction is carried out in a solvent, and the solvent can be dichloromethane, tetrahydrofuran, acetonitrile, etc., Dichloromethane is preferred;
  • Another object of the present invention is to provide the application of the compound represented by the above formula I.
  • the application provided by the present invention is that the application of the compound represented by formula I or its pharmaceutically acceptable salt, ester and solvate is the following (a) and/or (b) and/or (c):
  • the product may be a drug or a pharmaceutical formulation.
  • the viral inhibitor is capable of inhibiting viral replication.
  • the virus includes influenza virus, coronavirus.
  • influenza virus can specifically be influenza A virus (H1N1);
  • the coronavirus can be alpha coronavirus and/or beta coronavirus, specifically selected from HCoV-229E.
  • the disease caused by the virus may be an infectious disease of the respiratory system.
  • the respiratory infection is a respiratory infection and/or a pulmonary infection;
  • the respiratory infection can be nasopharyngitis, rhinitis, pharyngitis, tracheitis and/or bronchitis;
  • the pulmonary infection can be pneumonia.
  • the diseases caused by influenza virus generally include acute respiratory infectious diseases caused by influenza virus and the like.
  • the diseases caused by the coronavirus usually include viral pneumonia, severe acute respiratory syndrome and the like.
  • the coronavirus infection usually causes diseases such as viral pneumonia and severe acute respiratory syndrome.
  • the compound of the present invention has inhibitory effect on coronavirus and H1N1 influenza A virus at the same time, and has no toxicity to normal human cells, can inhibit the degree of inflammatory reaction, reduce the damage of pneumonia to the body, and promote the recovery of the body.
  • the antiviral drug prepared with the compound represented by formula I as the active ingredient also belongs to the protection scope of the present invention.
  • the antiviral drug can be introduced into the body such as muscle, intradermal, subcutaneous, intravenous, mucosal tissue by injection, spray, nasal instillation, eye instillation, penetration, absorption, physical or chemical mediation; or mixed with other substances or Introduce into the body after wrapping.
  • the carrier includes conventional diluents, excipients, fillers, binders, wetting agents, disintegrants, absorption enhancers, surfactants, adsorption carriers, lubricants and the like conventional in the pharmaceutical field.
  • the above-mentioned medicines can be made into various forms such as tablets, powders, granules, capsules, oral liquids, ointments, creams, injections, etc.
  • the medicines of the above-mentioned various dosage forms can be prepared according to conventional methods in the pharmaceutical field.
  • the present invention also provides a medicine or a pharmaceutical composition, the active ingredient of which is the compound represented by formula I or a pharmaceutically acceptable salt, ester or solvate thereof.
  • drugs or pharmaceutical compositions can be prepared into dosage forms such as solutions, tablets, capsules or injections according to conventional methods known to those skilled in the art.
  • an effective amount of the compound of formula I or a pharmaceutically acceptable salt thereof is administered to a subject organism.
  • the compounds described in the present invention have been confirmed by experiments that they not only have a good inhibitory effect on the H1N1 influenza A virus, but also have a good inhibitory effect on the coronavirus. The extent to which the virus simultaneously suppresses the inflammatory response.
  • Fig. 1 is the synthetic route diagram of the compound represented by formula I of the present invention.
  • the present invention will be further described below in conjunction with specific embodiments, but the present invention is not limited to the following embodiments.
  • the methods are conventional methods unless otherwise specified.
  • the raw materials can be obtained from open commercial sources unless otherwise specified.
  • Example 13 Protective effect of a series of compounds on mice infected with influenza A virus A/FM/1/47 (H1N1)
  • Oseltamivir Phosphate Granules 15mg ⁇ 10 bags, product of Yichang Dongguang Changjiang Pharmaceutical Co., Ltd., batch number: 0371912115, valid until 2021.12.11, positive control drug for anti-influenza A virus;
  • Influenza A virus mouse lung-adapted strain A/FM/1/47 (H1N1) inoculated with chicken embryos, and collected allantoic fluid for preservation. ICR mice, weighing 18-22 g. During the administration period, the patients were free to eat and drink, with 12 hours of light and 12 hours of darkness every day, the temperature was 22 ⁇ 2°C, and the humidity was 55-70%.
  • Experimental method After 3 days of adaptive feeding, the experiment was started. Except for the uninfected control group, mice in other groups were lightly anesthetized with ether, and intranasally inoculated with chick embryo allantoies of influenza virus A/FM/1/47 (H1N1) equivalent to 8 ⁇ LD 50 diluted with normal saline.
  • mice in the positive control oseltamivir group and the example compound group were administered intragastrically for the first time 2 h after infection, and each compound was administered by intragastric administration at the doses of 10 ⁇ mol/kg, 20 ⁇ mol/kg and 30 ⁇ mol/kg. , administered twice a day for 5 consecutive days. Observe the survival of the mice within 14 days,
  • Example 14 Alleviating effect of drugs on pulmonary inflammation in mice caused by influenza virus H1N1 infection
  • mice in other groups were lightly anesthetized with ether, and intranasally inoculated with chick embryo allantoies of influenza virus A/FM/1/47 (H1N1) equivalent to 8 ⁇ LD 50 diluted with normal saline.
  • the mice in the positive control oseltamivir group and the test administration group were intragastrically administered with 80 mg/kg for the first time 24 hours after virus infection, and then once a day, the same as the virus control group and the uninfected control group.
  • Oral saline, once a day the administration volume is 0.1mL/10g body weight. 5 days in total.
  • 3 mice in each group were weighed, the eyeballs were enucleated and exsanguinated, and the whole lung was taken out, weighed, and the lung index and lung index inhibition rate were calculated.
  • Lung index mouse lung weight / mouse body weight ⁇ 100
  • Lung index inhibition rate (%) mean lung index in virus control group - mean lung index in drug administration group/mean lung index in virus control group ⁇ 100%
  • Rats were given ZONK2003-0 by gavage at a dose of 2.51 mg/kg;
  • Rats were given an equimolar dose of ZONK2003-22 at a dose of 3.14 mg/kg;
  • Rats were given equimolar ZONK2003-9 at a dose of 3.27 mg/kg;
  • Rats were given an equimolar dose of ZONK2003-25 at a dose of 3.42 mg/kg;
  • Solvent 20% Solutol HS-15/saline
  • the plasma concentration of ZONK2003-0 was detected, and the pharmacokinetic parameters were calculated.
  • ND Not detected, that is, the measured value is lower than the lower limit of quantification after the blood concentration reaches the peak, —: The value cannot be calculated
  • ZONK2003-9 and ZONK2003-5 groups were much lower than that of ZONK2003-9 and ZONK2003-5 groups, and also lower than that of ZONK2003-0 gavage group, suggesting that ZONK2003-22 had low bioavailability or was converted into other substances after gavage, and failed to obtain Higher plasma concentrations of the metabolite ZONK2003-0.

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Abstract

本发明公开了一种抗病毒的化合物及其制备方法。该化合物的结构式如式I所示,式(Ⅰ)中,R1选自:单取代或多取代的H、F、甲基、三氟甲基;R2选自:H、直链或取代烷烃(C1-C6);R3选自:单取代或多取代的H、Cl、Br、F。本发明中所述化合物经过实验证实,不仅对于H1N1甲型流感病毒具有较好的抑制作用,并且对于冠状病毒也具有较好的抑制作用,没有观察到对于人正常细胞的毒性,且能够在抗病毒的同时抑制炎症反应的程度。

Description

一种抗病毒化合物及其制备方法 技术领域
本发明属于医药领域,具体涉及一种抗病毒化合物及其制备方法。
背景技术
流行性感冒病毒简称流感病毒。它分为甲(A)、乙(B)、丙(C)三型,近年来才发现的流感病毒将归为丁(D)型。流感病毒可引起人、禽、猪、马、蝙蝠等多种动物感染和发病,是人流感、禽流感、猪流感、马流感等人与动物疫病的病原。
这些疫病典型的临床症状是急性高热、全身疼痛、显著乏力和呼吸道症状。流感病毒主要通过空气中的飞沫、易感者与感染者之间的接触或与被污染物品的接触而传播。一般秋冬季节是其高发期。人流感主要是甲型流感病毒和乙型流感病毒引起的。甲型流感病毒经常发生抗原变异,可以进一步分为H1N1、H3N2、H5N1、H7N9等亚型(其中的H和N分别代表流感病毒两种表面糖蛋白)。流感病毒对外界抵抗力不强。动物流感病毒通常不感染人,人流感病毒通常不感染动物,但是猪比较例外。猪既可以感染人流感病毒,也可以感染禽流感病毒,但它们主要感染的还是猪流感病毒。少数动物流感病毒适应人后,可以引起人流感大流行。
人冠状病毒可对人造成普通感冒,严重急性呼吸综合征(SARS)和中东呼吸综合征(MERS),在流行病学特征上存在一定差异。
在全球,10%~30%的上呼吸道感染由HCoV-229E、HCoV-OC43、HCoV-NL63和HCoV-HKU1四类冠状病毒引起,在造成普通感冒的病因中占第二位,仅次于鼻病毒。感染呈现季节性流行,每年春季和冬季为疾病高发期。潜伏期2-5天,人群普遍易感。主要通过人与人接触传播。
甲型H1N1流感是猪的一种高度传染性急性呼吸道疾病,由一种或多种猪流感A型病毒引起。发病率往往较高,但死亡率较低(1~4%)。通过浮质、直接和间接接触以及携带病毒但无症状的猪,病毒在猪群中传播。全年都可发生猪群疫情。在温带的秋季和冬季,发病率上升。人患甲型H1N1流感通常来自被感染的猪,但有些人患病例没有与猪或猪所在环境接触的历史。在有些情况中发生了人际传播,但仅限于密切接触者和封闭环境中的人群。
冠状病毒(HCoV-229E)是冠状病毒的一种。冠状病毒属于套式病毒目、冠状病毒科、冠状病毒属,是一个大型病毒家族,在自然界广泛存在。冠状病毒仅感染脊椎动物,与人和动物的多种疾病有关,可引起人和动物呼吸道、消化道和神经***疾病。
因此,研究一种有效的抗病毒药物具有重要的现实意义。
发明内容
本发明的目的是提供一种式I所示的化合物及其药学上可接受的盐、溶剂合物。
Figure PCTCN2021128948-appb-000001
所述式(Ⅰ)中,n=0-5的整数,如1、2、3;
R 1选自:单取代或多取代的H、F、甲基、三氟甲基,优选H;
R 2选自:H、直链或取代烷烃(C1-C6),优选甲基,异丙基;
R 3选自:单取代或多取代的H、Cl、Br、F,优选Cl;
R 4、R 5独立地选自下述基团中的任意一种:(C 1-C 6)烷基、(C 3-C 8)碳环基烷基、含有取代基的(C 1-C 18)的烷烃、(C 2-C 8)烯基、含有取代基的(C 2-C 8)烯基、(C 2-C 8)炔基、含有取代基的(C 2-C 8)炔基、(C 6-C 20)芳基、含有取代基的(C 6-C 20)芳基、(C 2-C 20)杂环基、含有取代基的(C 2-C 20)杂环基;或R 4、R 5相互成环为(C 3-C 8)杂环烷基或取代(C 3-C 8)杂环烷基、(C 6-C 20)杂芳基或取代(C 6-C 20)杂芳基。
所述R 4、R 5中所述的取代基选自下述至少一种:甲基,乙基,异丙基,吡咯基,哌啶基,吗啉基和哌嗪基。
所述(C 3-C 8)杂环烷基具体可为吡咯基,哌啶基,吗啉基或哌嗪基。
在本发明的一些实施方案中,本发明所述的式I所示化合物可以列举为如下所示结构,但不局限于以下结构:
Figure PCTCN2021128948-appb-000002
药效学试验表明,通式(Ⅰ)中化合物当R 4和R 5均不为H时,能够获得较高的代谢物ZONK2003-0的血药浓度,具有优良的生物利用度,AUC远高于灌胃等摩尔的ZONK2003-0时的血药浓度,而当R 4取代基为H时如ZONK2003-22,则灌胃后获得非常低的ZONK2003-0的血药浓度,提示具有非常低的生物利用度或者转变成了其它物质。
本发明还提供了上述式I所示的化合物的制备方法。
根据文献Med.Chem.Commun.,2016,7,1441–1448,化合物1(式a)烷基肼与硫氰酸钠反应得到硫脲化合物2(式b),然后与R 1取代的邻甲酸苯甲醛缩合得到化合 物3(式c),最后与R 3取代溴苯乙酮关环,很容易得到噻唑类化合物4(式d);在缩合剂作用下,得到式I所示的苯甲酰胺衍生物。具体步骤如下:
1)将式a所示化合物与硫氰酸钠进行反应,得到式b所示化合物;
Figure PCTCN2021128948-appb-000003
其中,式a中R 2的定义同式I;式b中R 2的定义同式a;
2)将式b所示化合物与式e所示的R 1取代的邻甲酸苯甲醛进行缩合反应,得到式c所示化合物;
Figure PCTCN2021128948-appb-000004
其中,式e中R 1的定义同式I;式c中R 1的定义同式e、R 2的定义同式b;
3)将式c所示化合物与式f所示的R 3取代溴苯乙酮进行关环反应,得到式d所示化合物;
Figure PCTCN2021128948-appb-000005
其中,式f中R 3的定义同式I,式d中R 1、R 2的定义同式c,R 3的定义同式f;
4)在缩合剂作用下,使式d所示化合物与式g所示化合物进行缩合反应,得到式I所示化合物;
Figure PCTCN2021128948-appb-000006
其中,式g中n、R 4、R 5的定义同式I。
上述步骤1)中,所述反应的反应条件为:反应温度50-100℃,反应时间为24-72小时;反应在溶剂中进行,所述溶剂可为甲醇、乙醇、四氢呋喃、乙腈等,优选乙醇。
上述步骤2)中,所述缩合反应的反应条件为:反应温度50-100℃,反应时间为1-3小时;反应在溶剂中进行,所述溶剂可为甲醇、乙醇、四氢呋喃、乙腈等,优选乙醇。
上述步骤3)中,所述关环反应的反应条件为:反应温度50-100℃,反应时间为3-6小时;反应在溶剂中进行,所述溶剂可为甲醇、乙醇、四氢呋喃、乙腈等,优选乙醇。
上述步骤4)中,所述缩合反应的反应条件为:反应温度0-25℃,反应时间为2-8小时;反应在溶剂中进行,所述溶剂可为二氯甲烷、四氢呋喃、乙腈等,优选二氯甲烷;。
参照本发明实施例的制备方法可以获得本发明权利要求中所保护的其它化合物。
本发明另一个目的是提供上述式I所示化合物的应用。
本发明所提供的应用是式I所示化合物或其药学上可接受的盐、酯、溶剂合物的应用为下述(a)和/或(b)和/或(c):
(a)式I所示化合物或其药学上可接受的盐、酯、溶剂合物在制备治疗病毒所致疾病或病毒感染的产品中的应用;
(b)式I所示化合物或其药学上可接受的盐、酯、溶剂合物在制备预防病毒所致疾病或病毒感染的产品中的应用;
(c)式I所示化合物或其药学上可接受的盐、酯、溶剂合物在制备病毒抑制剂中的应用。
所述产品可为药物或药物制剂。
所述病毒抑制剂能够抑制病毒的复制。
所述病毒包括流感病毒、冠状病毒。
所述流感病毒具体可为甲型流感病毒(H1N1);
所述冠状病毒可为α属冠状病毒和/或β属冠状病毒,具体选自HCoV-229E。
本发明中,所述病毒所致疾病可为呼吸***感染性疾病。
所述呼吸***感染为呼吸道感染和/或肺部感染;所述呼吸道感染可为鼻咽炎、鼻炎、咽喉炎、气管炎和/或支气管炎;所述肺部感染可为肺炎。
本发明中,所述流感病毒所致疾病通常包括流感病毒引起的急性呼吸道传染疾病等。
本发明中,所述冠状病毒所致疾病通常包括病毒性肺炎、严重急性呼吸综合征等。
本发明中,所述冠状病毒感染通常引起病毒性肺炎、严重急性呼吸综合征等疾病。
本发明化合物同时具有对冠状病毒和H1N1甲型流感病毒的抑制作用,并且对人正常细胞没有毒性,能够抑制炎症反应发生的程度,减小肺炎对机体的伤害,促进机体恢复。
以式I所示的化合物为活性成分制备的抗病毒药物也属于本发明的保护范围。
所述抗病毒药物可通过注射、喷射、滴鼻、滴眼、渗透、吸收、物理或化学介导的方法导入机体如肌肉、皮内、皮下、静脉、粘膜组织;或是被其他物质混合或包裹后导入机体。
需要的时候,在上述药物中还可以加入一种或多种药学上可接受的载体。所述载体包括药学领域常规的稀释剂、赋形剂、填充剂、粘合剂、湿润剂、崩解剂、吸收促进剂、表面活性剂、吸附载体、润滑剂等。
上述药物可以制成片剂、粉剂、颗粒剂、胶囊、口服液、膏剂、霜剂、注射液等多种形式;上述各种剂型的药物均可以按照药学领域的常规方法制备。
本发明还提供了一种药物或药物组合物,其活性成分为式I所示化合物或其药学上可接受的盐、酯、溶剂合物。
所述药物或药物组合物具有下述至少一种功效:
1)治疗病毒所致疾病或病毒感染;
2)预防病毒所致疾病或病毒感染;
3)抑制病毒。
上述药物或药物组合物可以按照本领域技术人员已知的常规方法制成溶液剂、片剂、胶囊或注射剂等剂型。
利用本发明提供的式I所示化合物或其药学上可接受的盐预防和/或治疗病毒引起的感染时,给予受试者生物体有效量的式I化合物或其药学上可接受的盐。
本发明中所述化合物经过实验证实,不仅对于H1N1甲型流感病毒具有较好的抑制作用,并且对于冠状病毒也具有较好的抑制作用,没有观察到对于人正常细胞的毒性,且能够在抗病毒的同时抑制炎症反应的程度。
附图说明
图1为本发明式I所示化合物的合成路线图。
具体实施方式
下面结合具体实施例对本发明作进一步阐述,但本发明并不限于以下实施例。所述方法如无特别说明均为常规方法。所述原材料如无特别说明均能从公开商业途径获得。
实施例1-10
1、(E)-2-(甲氨基)乙基2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸酯的合成(ZONK2003-22)
1)2-甲基氨基硫脲(1-2)
Figure PCTCN2021128948-appb-000007
将甲基肼(23.0g,0.5mol)、硫氰酸铵(38.0g,0.5mol)、乙醇(200mL)分别加入单口圆底烧瓶中,加热回流反应72h。反应液冷却浓缩,柱层析纯化得到灰白色固体2-甲基氨基硫脲(44.1g,84.0%)。 1H NMR(DMSO-d 6 400MHz)δ7.24(s,2H),6.85(s,2H),3.14(s,3H).ESI-MS m/z:106.1[M+H] +.
2)(E)-2-((2-氨基甲硫杂酰-2-甲基亚肼基)甲基)苯甲酸(1-3)
Figure PCTCN2021128948-appb-000008
将2-甲基氨基硫脲(40.0g,0.38mol)、2-羰基苯甲酸(57.0g,0.38mol)、乙醇(300mL)分别加入单口圆底烧瓶中,加热回流反应2h。反应液冷却浓缩,柱层析纯化得到浅黄色固体(E)-2-((2-氨基甲硫杂酰-2-甲基亚肼基)甲基)苯甲酸(85.6g,95.0%)。 1H NMR(DMSO-d 6 400MHz)δ13.0(s,1H),8.12-7.23(m,7H),2.47(s,3H).ESI-MS m/z:238.1[M+H] +.
3)(E)-2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸(1-4)(ZONK2003-0)
Figure PCTCN2021128948-appb-000009
将(E)-2-((2-氨基甲硫杂酰-2-甲基亚肼基)甲基)苯甲酸(80.0g,0.34mol)、2- 溴-1-(2-氯苯基)乙酮(79.2g,0.34mol)、乙醇(400mL)分别加入单口圆底烧瓶中,加热回流反应3h。反应液冷却浓缩,柱层析纯化得到浅黄色固体(E)-2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸(124g,98.5%)。 1H NMR(DMSO-d 6 400MHz)δ13.23(s,1H),8.60(s,1H),8.01-7.34(m,9H),3.66(s,3H).ESI-MS m/z:372.1[M+H] +.
4)(E)-2-((叔丁氧羰基)(甲基)氨基)乙基2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸酯(1-5)
Figure PCTCN2021128948-appb-000010
将(E)-2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸(3.71g,10mmol)溶解于二氯甲烷(30mL)中,分别加入N-羟基丁二酰亚胺(1.15g,10mmol)、二环己基碳二亚胺(2.27g,11mmol),室温搅拌3h。TLC检测原料消失后,加入2-(N-Boc-N-甲基氨基)乙醇(1.75g,10mmol),继续室温反应5h。反应液浓缩,柱层析纯化得到类白色固体(E)-2-((叔丁氧羰基)(甲基)氨基)乙基2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸酯(4.52g,85.5%)。 1H NMR(DMSO-d 6 400MHz)δ8.24(s,1H),8.00-7.34(m,9H),4.68(m,2H),3.64(s,3H),3.42(m,2H),3.26(s,3H),1.36(s,9H).ESI-MS m/z:529.5[M+H] +.
5)(E)-2-(甲氨基)乙基2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸酯的合成
Figure PCTCN2021128948-appb-000011
将(E)-2-((叔丁氧羰基)(甲基)氨基)乙基2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸酯(4.52g,8.54mmol)溶解于二氯甲烷(20mL)中,加入浓盐酸(10mL),回流反应3h。TLC检测原料消失后,反应液浓缩,柱层析纯化得到类白色固体(E)-2-(甲氨基)乙基2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基) 甲基)苯甲酸酯(3.22g,88.1%)。 1H NMR(DMSO-d 6 400MHz)δ8.24(s,1H),8.00-7.34(m,9H),4.68(m,2H),3.64(s,3H),3.42(m,2H),3.26(s,3H).ESI-MS m/z:429.5[M+H] +.
2、(E)-2-(二甲基氨基)乙基2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸酯的合成(ZONK2003-23)
Figure PCTCN2021128948-appb-000012
将(E)-2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸(3.71g,10mmol)溶解于二氯甲烷(30mL)中,分别加入N-羟基丁二酰亚胺(1.15g,10mmol)、1-乙基-(3-二甲基氨基丙基)碳酰二亚胺盐酸盐(2.11g,11mmol),室温搅拌3h。TLC检测原料消失后,加入2-(二甲基氨基)乙醇(0.89g,10mmol),继续室温反应5h。反应液浓缩,柱层析纯化得到类白色固体(E)-2-(二甲基氨基)乙基2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸酯(3.68g,83.3%)。 1H NMR(DMSO-d 6400MHz)δ8.20(s,1H),8.01-7.34(m,9H),4.55(m,2H),4.07(m,2H),3.52(s,3H),2.68(s,6H).ESI-MS m/z:443.5[M+H] +.
3、(E)-2-(二乙氨基)乙基2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸酯的合成(ZONK2003-9)
Figure PCTCN2021128948-appb-000013
将(E)-2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸(3.71g,10mmol)溶解于二氯甲烷(30mL)中,分别加入N-羟基丁二酰亚胺(1.15g,10mmol)、二环己基碳二亚胺(2.27g,11mmol),室温搅拌3h。TLC检测原料消失后,加入2-(二 乙基氨基)乙醇(1.17g,10mmol),继续室温反应5h。反应液浓缩,柱层析纯化得到类白色固体(E)-2-(二乙氨基)乙基2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸酯(3.85g,81.8%)。 1H NMR(DMSO-d 6 400MHz)δ8.20(s,1H),8.01-7.34(m,9H),4.55(m,2H),3.52(s,3H),3.24-3.01(m,6H),1.12(m,6H).ESI-MS m/z:471.1[M+H] +.
实施例4、(E)-2-(吡咯烷-1-基)乙基2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸酯的合成(ZONK2003-10)
Figure PCTCN2021128948-appb-000014
将(E)-2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸(3.71g,10mmol)溶解于二氯甲烷(30mL)中,分别加入N-羟基丁二酰亚胺(1.15g,10mmol)、1-乙基-(3-二甲基氨基丙基)碳酰二亚胺盐酸盐(2.11g,11mmol),室温搅拌3h。TLC检测原料消失后,加入2-(吡咯烷-1-基)乙醇盐酸盐(1.52g,10mmol),继续室温反应5h。反应液浓缩,柱层析纯化得到类白色固体(E)-2-(吡咯烷-1-基)乙基2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸酯(3.64g,77.6%)。 1H NMR(DMSO-d 6 400MHz)δ8.20(s,1H),8.01-7.34(m,9H),4.55(m,2H),3.52(s,3H),3.24-3.01(m,6H),1.68(m,4H).ESI-MS m/z:469.5[M+H] +.
实施例5、(E)-2-(哌啶-1-基)乙基2-((2-(4-(2-氯苯基)噻唑-2-基)甲基亚肼基)甲基)苯甲酸酯的合成(ZONK2003-24)
Figure PCTCN2021128948-appb-000015
将(E)-2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸(3.71g,10mmol)溶解于二氯甲烷(30mL)中,分别加入N-羟基丁二酰亚胺(1.15g,10mmol)、 二环己基碳二亚胺(2.27g,11mmol),室温搅拌3h。TLC检测原料消失后,加入N-羟乙基哌啶(1.29g,10mmol),继续室温反应5h。反应液浓缩,柱层析纯化得到类白色固体(E)-2-(哌啶-1-基)乙基2-((2-(4-(2-氯苯基)噻唑-2-基)甲基亚肼基)甲基)苯甲酸酯(3.86g,80.1%)。 1H NMR(DMSO-d 6 400MHz)δ8.20(s,1H),8.01-7.34(m,9H),4.55-3.54(m,11H),1.86-1.55(m,6H).ESI-MS m/z:483.5[M+H]+.
6、(E)-2-吗啉乙基2-((2-(4-(2-氯苯基)噻唑-2-基)甲基亚肼基)甲基)苯甲酸酯的合成(ZONK2003-25)
Figure PCTCN2021128948-appb-000016
将(E)-2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸(3.71g,10mmol)溶解于二氯甲烷(30mL)中,分别加入N-羟基丁二酰亚胺(1.15g,10mmol)、1-乙基-(3-二甲基氨基丙基)碳酰二亚胺盐酸盐(2.11g,11mmol),室温搅拌3h。TLC检测原料消失后,加入2-吗啉乙醇(1.31g,10mmol),继续室温反应5h。反应液浓缩,柱层析纯化得到类白色固体(E)-2-吗啉乙基2-((2-(4-(2-氯苯基)噻唑-2-基)甲基亚肼基)甲基)苯甲酸酯(3.70g,76.5%)。 1H NMR(DMSO-d 6 400MHz)δ8.20(s,1H),8.01-7.34(m,9H),4.55-3.54(m,15H).ESI-MS m/z:485.5[M+H] +.
实施例7、(E)-2-(哌嗪-1-基)乙基2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸酯的合成(ZONK2003-26)
Figure PCTCN2021128948-appb-000017
将(E)-2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸(3.71g,10mmol)溶解于二氯甲烷(30mL)中,分别加入N-羟基丁二酰亚胺(1.15g,10mmol)、二环己基碳二亚胺(2.27g,11mmol),室温搅拌3h。TLC检测原料消失后,加入 1-哌嗪乙醇(1.30g,10mmol),继续室温反应5h。反应液浓缩,柱层析纯化得到类白色固体(E)-2-(哌嗪-1-基)乙基2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸酯(3.58g,74.1%)。 1H NMR(DMSO-d 6 400MHz)δ8.20(s,1H),8.01-7.11(m,9H),4.55-3.54(m,12H),3.31(s,3H).ESI-MS m/z:484.5[M+H] +.
实施例8、(E)-2-(哌嗪-1-基)乙基2-((2-(4-(2,4-二氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)-4-氟苯甲酸酯的合成(ZONK2003-27)
Figure PCTCN2021128948-appb-000018
综合实施例7的制备方法,合成得到(E)-2-(哌嗪-1-基)乙基2-((2-(4-(2,4-二氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)-4-氟苯甲酸酯。 1H NMR(DMSO-d 6 400MHz)δ8.20(s,1H),8.01-7.11(m,7H),4.55-3.54(m,12H),3.31(s,3H).ESI-MS m/z:536.5[M+H] +.
实施例9、(E)-2-吗啉乙基2-((2-(4-(2-氯苯基)噻唑-2-基)亚肼基)甲基)-4-甲基苯甲酸酯的合成(ZONK2003-28)
Figure PCTCN2021128948-appb-000019
综合实施例6的制备方法,合成得到(E)-2-吗啉乙基2-((2-(4-(2-氯苯基)噻唑-2-基)亚肼基)甲基)-4-甲基苯甲酸酯。 1H NMR(DMSO-d 6 400MHz)δ8.20(s,1H),8.01-7.34(m,8H),4.55-3.54(m,12H),2.68(s,3H).ESI-MS m/z:485.5[M+H]+.
实施例10、(E)-3-(二乙基氨基)丙基2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸酯的合成(ZONK2003-29)
Figure PCTCN2021128948-appb-000020
综合实施例3的制备方法,合成得到(E)-3-(二乙基氨基)丙基2-((2-(4-(2-氯苯基)噻唑-2-基)-2-甲基亚肼基)甲基)苯甲酸酯 1H NMR(DMSO-d6 400MHz)δ8.20(s,1H),8.01-7.34(m,9H),4.55(m,2H),3.52(s,3H),3.24-3.01(m,6H),1.68(m,2H),1.12(m,6H).ESI-MS m/z:485.5[M+H] +.
实施例11、(E)-3-(二甲氨基)丙基2-((2-(4-(4-氯苯基)噻唑-2-基)亚肼基)甲基)-5-氟苯甲酸酯的合成(ZONK2003-8)
Figure PCTCN2021128948-appb-000021
综合实施例3的制备方法,合成得到(E)-3-(二甲氨基)丙基2-((2-(4-(4-氯苯基)噻唑-2-基)亚肼基)甲基)-5-氟苯甲酸酯。 1H NMR(DMSO-d6 400MHz)δ8.20(s,1H),8.01-7.34(m,8H),4.55(m,2H),3.52(m,2H),3.24(s,6H),1.86(m,2H).ESI-MS m/z:461.1[M+H]+.
实施例12、(E)-2-(哌嗪-1-基)乙基2-((2-甲基-2-(4-苯基噻唑-2-基)亚肼基)甲基)苯甲酸酯的合成(ZONK2003-13)
Figure PCTCN2021128948-appb-000022
综合实施例3的制备方法,合成得到(E)-2-(哌嗪-1-基)乙基2-((2-甲基-2-(4-苯基噻唑-2-基)亚肼基)甲基)苯甲酸酯。 1H NMR(DMSO-d6 400MHz)δ8.20(s,1H),8.01-7.11(m,10H),4.55-3.54(m,12H),3.31(s,3H).ESI-MS m/z:450.1[M+H]+.
实施例13、系列化合物对甲型流感病毒A/FM/1/47(H1N1)感染小鼠的保护作用
受试物:
ZONK2003-0;ZONK2003-22;ZONK2003-9;ZONK2003-25;及ZONK2003-23、ZONK2003-10、ZONK2003-24、ZONK2003-26、ZONK2003-27、ZONK2003-28、ZONK2003-8,由广东中科药物研究有限公司提供。
磷酸奥司他韦颗粒,规格15mg×10袋装,宜昌东阳光长江药业股份有限公司产品,批号:0371912115,有效期至2021.12.11,用于抗甲型流感病毒的阳性对照药;
实验材料:甲型流感病毒鼠肺适应株A/FM/1/47(H1N1),接种鸡胚,收集尿囊液保存。ICR小鼠,体重18~22g。给药期间自由进食、饮水,每天12小时光照,12小时黑暗,温度22±2℃,湿度55~70%。实验方法:适应性饲养3天后,开始进行实验。除未感染对照组以外,其它各组小鼠用***轻度麻醉,鼻腔内接种用生理盐水稀释的相当于8×LD 50的流感病毒A/FM/1/47(H1N1)的鸡胚尿囊液50μL/只,阳性对照奥司他韦组和实施例化合物组小鼠于感染后2h首次灌胃给药,每种化合物以10μmol/kg、20μmol/kg、30μmol/kg的剂量灌胃给药,每天给药两次,连续用药5天。观察14天内小鼠的存活情况,
并计算药物对于小鼠的死亡保护率(死亡保护率=模型组死亡率一实验组死亡率)。
表1、化合物对A型流感病毒(H1N1甲型流感病毒)感染小鼠的保护作用
Figure PCTCN2021128948-appb-000023
Figure PCTCN2021128948-appb-000024
实施例14:药物对流感病毒H1N1感染导致的小鼠肺部炎症的缓解作用
实验方法:适应性饲养3天后,开始进行实验。除未感染对照组以外,其它各组小鼠用***轻度麻醉,鼻腔内接种用生理盐水稀释的相当于8×LD 50的流感病毒A/FM/1/47(H1N1)的鸡胚尿囊液50μL/只,阳性对照奥司他韦组小鼠和供试给药组于病毒感染24h后以80mg/kg首次灌胃给药,以后每日1次,病毒对照组及未感染对照组同法口服生理盐水,每日1次,给药体积为0.1mL/10g体重。共5天。第6天每组取3只小鼠称重,摘除眼球放血致死,取出全肺,称重,计算肺指数及肺指数抑制率。
失重百分比%=给药前体重-给药后体重/给药前体重×100%
肺指数=小鼠肺重/小鼠体重×100
肺指数抑制率(%)=病毒对照组肺指数均数-给药组肺指数均数/病毒对照组肺指数均数×100%
组别 失重百分比% 肺指数 肺指数抑制率%
正常对照组   0.57  
模型对照组   2.09  
奥司他韦组 15.12 1.66 20.57
ZONK2003-8 9.78 1.25 40.19
ZONK2003-9 12.45 1.19 43.06
ZONK2003-10 11.02 1.08 48.32
实验结果:因此实施例化合物对流感病毒引起的肺部炎症有明显的保护和抑制作用,且效果优于奥司他韦对照组。
实施例15:ZONK2003药物灌胃大鼠药代动力学实验
雄性大鼠每组含3只,分别为ZONK2003-0组、ZONK2003-22组、ZONK2003-9组、ZONK2003-25组,灌胃,每只大鼠采集10个不连续的时间点。
建立测定ICR小鼠全血中ZONK2003-0、ZONK2003-22、ZONK2003-9、ZONK2003-25浓度的LC-MS/MS分析方法。所得血药浓度数据同时采用药动学处理软件Pharsight Phoenix WinNonlin 8.0非房室模型计算相关药代动力学参数。
大鼠灌胃ZONK2003-0,剂量为2.51mg/kg;
大鼠灌胃等摩尔的ZONK2003-22,剂量为3.14mg/kg;
大鼠灌胃等摩尔的ZONK2003-9,剂量为3.27mg/kg;
大鼠灌胃等摩尔的ZONK2003-25,剂量为3.42mg/kg;
溶剂:20%Solutol HS-15/生理盐水;
检测ZONK2003-0的血药浓度,计算药代动力学参数。
详细结果见下表。
表2 大鼠灌胃给药2.51mg/kg的ZONK2003-0后,大鼠体内原型药物血药浓度检测结果(ng/mL)
Figure PCTCN2021128948-appb-000025
表3 大鼠灌胃给药2.51mg/kg的ZONK2003-0后,原型药物主要药代动力学参数
Figure PCTCN2021128948-appb-000026
表4 大鼠灌胃给药3.14mg/kg的ZONK2003-22后,代谢物ZONK2003-0 血药浓度检测结果(ng/mL)
Figure PCTCN2021128948-appb-000027
ND:未检测到,即血药浓度达峰后测定值低于定量下限点,—:该值无法计算
表5 大鼠灌胃给药3.14mg/kg的ZONK2003-22后,代谢物ZONK2003-0主要药代动力学参数
Figure PCTCN2021128948-appb-000028
表6 大鼠灌胃给药3.27mg/kg的ZONK2003-9后,代谢物ZONK2003-0血药浓度检测结果(ng/mL)
Figure PCTCN2021128948-appb-000029
Figure PCTCN2021128948-appb-000030
表7 大鼠灌胃给药3.27mg/kg的ZONK2003-9后,代谢物ZONK2003-0主要药代动力学参数
Figure PCTCN2021128948-appb-000031
表8 大鼠灌胃给药3.42mg/kg的ZONK2003-25后,代谢物ZONK2003-0血药浓度检测结果(ng/mL)
Figure PCTCN2021128948-appb-000032
表9 大鼠灌胃给药3.42mg/kg的ZONK2003-25后,代谢物ZONK2003-0主要药代动力学参数
Figure PCTCN2021128948-appb-000033
Figure PCTCN2021128948-appb-000034
灌胃等摩尔的ZONK2003-9和ZONK2003-25后,检测到代谢物ZONK2003-0的血药浓度,并且AUC为灌胃等摩尔ZONK2003-0的2-3倍,提示ZONK2003-9和ZONK2003-25的生物利用度是ZONK2003-0灌胃的2-3倍,ZONK2003-9和ZONK2003-25是ZONK2003-0的优良的前体药物,而灌胃等摩尔的ZONK2003-22后检测代谢物ZONK2003-0的血药浓度,AUC远低于ZONK2003-9和ZONK2003-5组,也低于ZONK2003-0灌胃组,提示ZONK2003-22灌胃后生物利用度低或者是转变成了其它物质,未能获得较高的代谢物ZONK2003-0的血药浓度。

Claims (10)

  1. 结构通式如式I所示的化合物或其药学上可接受的盐、溶剂合物:
    Figure PCTCN2021128948-appb-100001
    所述式(Ⅰ)中,n为0-5的整数;
    R 1选自:单取代或多取代的H、F、甲基、三氟甲基;
    R 2选自:H、直链或取代烷烃(C1-C6);
    R 3选自:单取代或多取代的H、Cl、Br、F;
    R 4、R 5独立地选自下述基团中的任意一种:(C 1-C 6)烷基、(C 3-C 8)碳环基烷基、含有取代基的(C 1-C 18)的烷烃、(C 2-C 8)烯基、含有取代基的(C 2-C 8)烯基、(C 2-C 8)炔基、含有取代基的(C 2-C 8)炔基、(C 6-C 20)芳基、含有取代基的(C 6-C 20)芳基、(C 2-C 20)杂环基、含有取代基的(C 2-C 20)杂环基;或R 4、R 5相互成环为(C 3-C 8)杂环烷基或取代(C 3-C 8)杂环烷基、(C 6-C 20)杂芳基或取代(C 6-C 20)杂芳基;
    所述R 4、R 5中所述的取代基选自下述至少一种:甲基,乙基,异丙基,吡咯基,哌啶基,吗啉基和哌嗪基。
  2. 根据权利要求1所述的化合物或其药学上可接受的盐、酯、溶剂合物,其特征在于:所述n为1、2或3;
    或,所述R 1选自H;
    或,所述R 2选自甲基或异丙基;
    或,所述R 3选自Cl。
  3. 根据权利要求1或2所述的化合物或其药学上可接受的盐、酯、溶剂合物,其特征在于:所述式I所示化合物选自下述任意化合物:
    Figure PCTCN2021128948-appb-100002
  4. 权利要求1-3中任一项所述式I所示的化合物的制备方法,包括下述步骤:
    1)将式a所示化合物与硫氰酸钠进行反应,得到式b所示化合物;
    Figure PCTCN2021128948-appb-100003
    其中,式a中R 2的定义同式I;式b中R 2的定义同式a;
    2)将式b所示化合物与式e所示的R 1取代的邻甲酸苯甲醛进行缩合反应,得到式c所示化合物;
    Figure PCTCN2021128948-appb-100004
    其中,式e中R 1的定义同式I;式c中R 1的定义同式e、R 2的定义同式b;
    3)将式c所示化合物与式f所示的R 3取代溴苯乙酮进行关环反应,得到式d所示化合物;
    Figure PCTCN2021128948-appb-100005
    其中,式f中R 3的定义同式I,式d中R 1、R 2的定义同式c,R 3的定义同式f;
    4)在缩合剂作用下,使式d所示化合物与式g所示化合物进行缩合反应,得到式I所示化合物;
    Figure PCTCN2021128948-appb-100006
    其中,式g中n、R 4、R 5的定义同式I。
  5. 根据权利要求4所述的方法,其特征在于:
    所述步骤1)中,所述反应的反应条件为:反应温度为50-100℃,反应时间为24-72小时;反应在溶剂中进行,所述溶剂选自下述任意一种:甲醇、乙醇、四氢呋喃、乙腈等,优选乙醇;
    所述步骤2)中,所述缩合反应的反应条件为:反应温度50-100℃,反应时间为1-3小时;反应在溶剂中进行,所述溶剂选自下述任意一种:甲醇、乙醇、四氢呋喃、乙腈,优选乙醇;
    所述步骤3)中,所述关环反应的反应条件为:反应温度50-100℃,反应时间为3-6小时;反应在溶剂中进行,所述溶剂选自下述任意一种:甲醇、乙醇、四氢呋喃、乙腈,优选乙醇;
    所述步骤4)中,所述缩合反应的反应条件为:反应温度0-25℃,反应时间为2-8小时;反应在溶剂中进行,所述溶剂选自下述任意一种:二氯甲烷、四氢呋喃、乙腈,优选二氯甲烷。
  6. 权利要求1-3任一项所述式I所示的化合物或其药学上可接受的盐、溶剂合物的应用为下述(a)和/或(b)和/或(c):
    (a)式I所示化合物或其药学上可接受的盐、酯、溶剂合物在制备治疗病毒所致疾病或病毒感染的产品中的应用;
    (b)式I所示化合物或其药学上可接受的盐、酯、溶剂合物在制备预防病毒所致疾病或病毒感染的产品中的应用;
    (c)式I所示化合物或其药学上可接受的盐、酯、溶剂合物在制备病毒抑制剂中的应用。
  7. 根据权利要求6所述的应用,其特征在于:
    所述产品为药物或药物制剂;所述病毒抑制剂能够抑制病毒的复制;
    所述病毒包括流感病毒、冠状病毒。
  8. 根据权利要求7所述的应用,其特征在于:所述流感病毒为甲型流感病毒;所述冠状病毒为HCoV-229E。
  9. 一种药物或药物组合物,其活性成分包括权利要求1-3中任一项所述的式I所示化合物或其药学上可接受的盐、酯、溶剂合物;
    所述药物或药物组合物具有下述至少一种功效:
    1)治疗病毒所致疾病或病毒感染;
    2)预防病毒所致疾病或病毒感染;
    3)抑制病毒。
  10. 根据权利要求9所述的药物或药物组合物,其特征在于:
    所述产品为药物或药物制剂;所述病毒抑制剂能够抑制病毒的复制;
    所述病毒包括流感病毒、冠状病毒;
    所述流感病毒为甲型流感病毒;所述冠状病毒为HCoV-229E。
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