CN114246855A - Eflornithine在制备抗冠状病毒感染药物中的应用及药物 - Google Patents
Eflornithine在制备抗冠状病毒感染药物中的应用及药物 Download PDFInfo
- Publication number
- CN114246855A CN114246855A CN202011014081.2A CN202011014081A CN114246855A CN 114246855 A CN114246855 A CN 114246855A CN 202011014081 A CN202011014081 A CN 202011014081A CN 114246855 A CN114246855 A CN 114246855A
- Authority
- CN
- China
- Prior art keywords
- coronavirus
- papain
- medicine
- cov
- sars
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003814 drug Substances 0.000 title claims abstract description 19
- 208000001528 Coronaviridae Infections Diseases 0.000 title claims abstract description 10
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 241000711573 Coronaviridae Species 0.000 claims abstract description 28
- 239000004365 Protease Substances 0.000 claims abstract description 22
- 108090000526 Papain Proteins 0.000 claims abstract description 20
- 235000019834 papain Nutrition 0.000 claims abstract description 20
- 229940055729 papain Drugs 0.000 claims abstract description 20
- 230000005764 inhibitory process Effects 0.000 claims abstract description 13
- 150000003839 salts Chemical class 0.000 claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims description 16
- 230000002401 inhibitory effect Effects 0.000 claims description 6
- 241000127282 Middle East respiratory syndrome-related coronavirus Species 0.000 claims description 4
- 241000315672 SARS coronavirus Species 0.000 claims description 4
- VLCYCQAOQCDTCN-UHFFFAOYSA-N eflornithine Chemical compound NCCCC(N)(C(F)F)C(O)=O VLCYCQAOQCDTCN-UHFFFAOYSA-N 0.000 claims description 4
- 241000711467 Human coronavirus 229E Species 0.000 claims description 3
- 241000482741 Human coronavirus NL63 Species 0.000 claims description 3
- 241001428935 Human coronavirus OC43 Species 0.000 claims description 3
- 229960002759 eflornithine Drugs 0.000 claims description 3
- 206010061218 Inflammation Diseases 0.000 claims description 2
- 108091005804 Peptidases Proteins 0.000 claims description 2
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 claims description 2
- 239000002775 capsule Substances 0.000 claims description 2
- 239000000839 emulsion Substances 0.000 claims description 2
- 150000004677 hydrates Chemical class 0.000 claims description 2
- 230000004054 inflammatory process Effects 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 239000006187 pill Substances 0.000 claims description 2
- 235000019419 proteases Nutrition 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims 1
- 230000002255 enzymatic effect Effects 0.000 claims 1
- 239000008187 granular material Substances 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 20
- 102000004190 Enzymes Human genes 0.000 abstract description 5
- 108090000790 Enzymes Proteins 0.000 abstract description 5
- 229940079593 drug Drugs 0.000 abstract description 5
- 229940088598 enzyme Drugs 0.000 abstract description 5
- 239000003112 inhibitor Substances 0.000 description 17
- 239000000758 substrate Substances 0.000 description 13
- 108090000765 processed proteins & peptides Proteins 0.000 description 11
- 229910021538 borax Inorganic materials 0.000 description 7
- 239000004328 sodium tetraborate Substances 0.000 description 7
- 235000010339 sodium tetraborate Nutrition 0.000 description 7
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 108700002666 Coronavirus Papain-Like Proteases Proteins 0.000 description 5
- 101800004803 Papain-like protease Proteins 0.000 description 5
- 108091005532 SARS-CoV-2 main proteases Proteins 0.000 description 4
- 239000007853 buffer solution Substances 0.000 description 4
- 238000011534 incubation Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000002671 adjuvant Substances 0.000 description 3
- 239000000872 buffer Substances 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000004060 metabolic process Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- WCKQPPQRFNHPRJ-UHFFFAOYSA-N 4-[[4-(dimethylamino)phenyl]diazenyl]benzoic acid Chemical compound C1=CC(N(C)C)=CC=C1N=NC1=CC=C(C(O)=O)C=C1 WCKQPPQRFNHPRJ-UHFFFAOYSA-N 0.000 description 2
- 208000009525 Myocarditis Diseases 0.000 description 2
- 108700038444 SARS-CoV-2 papain-like protease Proteins 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 208000028774 intestinal disease Diseases 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229920000768 polyamine Polymers 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 101800001631 3C-like serine proteinase Proteins 0.000 description 1
- SJQRQOKXQKVJGJ-UHFFFAOYSA-N 5-(2-aminoethylamino)naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(NCCN)=CC=CC2=C1S(O)(=O)=O SJQRQOKXQKVJGJ-UHFFFAOYSA-N 0.000 description 1
- 108010077544 Chromatin Proteins 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 102000004157 Hydrolases Human genes 0.000 description 1
- 108090000604 Hydrolases Proteins 0.000 description 1
- KGPYBLOBHQLIET-OAHLLOKOSA-N KOM70144 Chemical compound N([C@H](C)C=1C2=CC=CC=C2C=CC=1)C(=O)C1=CC(NC(C)=O)=CC=C1C KGPYBLOBHQLIET-OAHLLOKOSA-N 0.000 description 1
- 208000019693 Lung disease Diseases 0.000 description 1
- 206010060860 Neurological symptom Diseases 0.000 description 1
- 101800000515 Non-structural protein 3 Proteins 0.000 description 1
- 108010047956 Nucleosomes Proteins 0.000 description 1
- 102000052812 Ornithine decarboxylases Human genes 0.000 description 1
- 108700005126 Ornithine decarboxylases Proteins 0.000 description 1
- 101800002227 Papain-like protease nsp3 Proteins 0.000 description 1
- 101800001074 Papain-like proteinase Proteins 0.000 description 1
- 108010076039 Polyproteins Proteins 0.000 description 1
- 229940124158 Protease/peptidase inhibitor Drugs 0.000 description 1
- 101710153041 Replicase polyprotein 1a Proteins 0.000 description 1
- 208000018569 Respiratory Tract disease Diseases 0.000 description 1
- 101500025528 Severe acute respiratory syndrome coronavirus 2 Papain-like protease nsp3 Proteins 0.000 description 1
- 101500025256 Severe acute respiratory syndrome coronavirus 2 Papain-like protease nsp3 Proteins 0.000 description 1
- 108090000848 Ubiquitin Proteins 0.000 description 1
- 102000044159 Ubiquitin Human genes 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- -1 adsorption carrier Substances 0.000 description 1
- 230000000259 anti-tumor effect Effects 0.000 description 1
- 239000003443 antiviral agent Substances 0.000 description 1
- 230000006907 apoptotic process Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 210000003483 chromatin Anatomy 0.000 description 1
- 229940125904 compound 1 Drugs 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000007884 disintegrant Substances 0.000 description 1
- 239000003937 drug carrier Substances 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
- 238000007877 drug screening Methods 0.000 description 1
- 241001493065 dsRNA viruses Species 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001917 fluorescence detection Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000028993 immune response Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 208000027866 inflammatory disease Diseases 0.000 description 1
- 238000010255 intramuscular injection Methods 0.000 description 1
- 239000007927 intramuscular injection Substances 0.000 description 1
- 238000010253 intravenous injection Methods 0.000 description 1
- 201000010260 leiomyoma Diseases 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 230000010309 neoplastic transformation Effects 0.000 description 1
- 208000020470 nervous system symptom Diseases 0.000 description 1
- 210000001623 nucleosome Anatomy 0.000 description 1
- 238000006384 oligomerization reaction Methods 0.000 description 1
- 239000000137 peptide hydrolase inhibitor Substances 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 238000011321 prophylaxis Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000003826 tablet Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000004881 tumor cell Anatomy 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Images
Classifications
-
- 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
- A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
- A61K31/19—Carboxylic acids, e.g. valproic acid
- A61K31/195—Carboxylic acids, e.g. valproic acid having an amino group
- A61K31/197—Carboxylic acids, e.g. valproic acid having an amino group the amino and the carboxyl groups being attached to the same acyclic carbon chain, e.g. gamma-aminobutyric acid [GABA], beta-alanine, epsilon-aminocaproic acid or pantothenic acid
- A61K31/198—Alpha-amino acids, e.g. alanine or edetic acid [EDTA]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
- A61P31/14—Antivirals for RNA viruses
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Organic Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Virology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Molecular Biology (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Rheumatology (AREA)
- Communicable Diseases (AREA)
- Oncology (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Abstract
本发明属于药物化学技术领域,具体涉及Eflornithine在制备抗冠状病毒感染的药物中的应用。本发明所述的Eflornithine及其药学上可以接受的盐对冠状病毒尤其是新冠病毒的靶点木瓜样蛋白酶的酶活性有较强抑制作用,可制备为抗冠状病毒尤其是抗新冠病毒的药物。
Description
技术领域
本发明属于药物化学技术领域,具体涉及Eflornithine及其药学上可 以接受的盐在制备预防和/或治疗冠状病毒感染药物中的应用。
背景技术
冠状病毒属于单正链RNA病毒,冠状病毒家族主要包括新型冠状病毒 (SARS-CoV-2),SARS冠状病毒(SARS-CoV),中东呼吸综合征冠状病毒 (MERS-CoV),HCoV-229E,HCoV-OC43,HCoV-NL63、HCoV-HKU。冠状病毒 通常导致呼吸道和肠道疾病、神经系统症状和心肌炎。这些疾病的感染严 重影响了人们的健康。冠状病毒的反复发作,提示人类对于其研究知之甚 少,开发治疗新冠病毒的药物迫在眉睫。
木瓜样蛋白酶(PLpro)是表达在冠状病毒5’末端基因组nsp3上的水 解酶,主要功能为酶切多聚蛋白pp1a上nsp1-2,nsp2-3,nsp3-4之间特 异性四肽结构LXGG,该多聚蛋白需要被水解后成为成熟的功能蛋白;另外, 木瓜样蛋白酶具有从宿主细胞里脱离泛素的附加功能,该功能保护冠状病 毒进而规避宿主固有的免疫反应。因此,木瓜样蛋白酶对于病毒的生命周 期至关重要,可以作为抗冠状病毒药物设计筛选的理想靶点。
Eflornithine(二氟甲基鸟氨酸)具有抗肿瘤活性,Eflornithine不可 逆地抑制鸟氨酸脱羧酶,一种多胺生物合成所需的酶,从而抑制了肿瘤细 胞的形成和增殖。多胺参与核小体的寡聚化和DNA构象,从而创造了一种 染色质环境,刺激了细胞的肿瘤转化。该试剂已显示出诱导平滑肌瘤细胞 凋亡的作用。该试剂处于活跃临床试验中。本专利证实了Eflornithine化 合物对新冠病毒木瓜样蛋白酶的抑制能力,由于冠状病毒的木瓜样蛋白酶 具有高度相似性,这种抑制能力普适于冠状病毒木瓜样蛋白酶。经查阅相 关资料,未见Eflornithine化合物作为冠状病毒木瓜样蛋白酶PLpro抑制 剂的相关报道。
发明内容
本发明针对冠状病毒引起的肺部,呼吸道和肠道疾病、神经系统症状 和心肌炎等相关炎症疾病缺乏有效防治药物的问题,指出Eflornithine化 合物及其药学上可以接受的盐在制备抗冠状病毒炎症药物中的应用。
本发明技术是以新型冠状病毒(SARS-COV-2)为模型,基于SARS-COV-2 PLpro的三维结构进行药物设计,对包括天然产物库,临床化合物库,抗病 毒药物库的数千个化合物进行理论筛选,得到可能对新型冠状病毒PLpro 有抑制的化合物。然后,我们利用前期构建的SARS-Cov-2木瓜样蛋白酶抑 制剂筛选试剂盒,实验筛选出了Eflornithine及其药学上可以接受的盐对 SARS-Cov-2木瓜样蛋白酶的抑制作用。
经按上述方案进行药物筛选,本发明发现了如下所示Eflornithine(式 一)对SARS-Cov-2木瓜样蛋白酶的抑制作用。
上述化合物对新型冠状病毒木瓜样蛋白酶(PLpro)的抑制效果明显, 表明这类化合物能够有效的抑制新型冠状病毒木瓜样蛋白酶的活性。并且, 鉴于文献报道的冠状病毒木瓜样蛋白酶具有高度相似性,我们推理该类化 合物也能够有效抑制其它冠状病毒木瓜样蛋白酶的活性,尤其是对于 SARS-CoV,MERS-CoV,HCoV-229E,HCoV-OC43,HCoV-NL63和HCoV-HKU。 优选地,具有抑制效果的Eflornithine还包括各种旋光异构体、其水合物 及其与酸形成的可药用的盐。将式Ⅰ化合物与药学上可接受的辅剂结合, 可以制备治疗和预防新型冠状病毒感染的药物。所述辅剂(药物学上可接 受的载体或辅料)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、增效剂。 该药物可以制成注射剂、片剂、丸剂、胶囊、悬浮剂或乳剂使用。其给药 途径可为口服、经皮、静脉或肌肉注射。
附图说明
图1为实施例1抑制剂Eflornithine不同浓度下底物肽在木瓜样蛋白酶代 谢下荧光强度随时间变化效果图
图2为实施例2化合物Eflornithine对新型冠状病毒木瓜样蛋白酶的抑制 曲线
具体实施方式
下面将详细描述本发明的具体实施方式,这仅用于更加清楚的说明本 发明,而不能视为对本发明的限制。
整个实验过程中,所有的操作方法和操作步骤以及底物的反应条件等, 都是根据该技术领域的普通技术人员熟知的方法设计、实施的。
下述实施例中所用的抑制剂分子,部分购自MCE(MedChemExpress)或 其他普通商业途径。
本发明所用的抑制剂筛选试剂盒为本实验室发明的(申请专利号为202010674650.X),包括以下组分:
SARS-Cov-2木瓜样蛋白酶、
底物肽Dabcyl-FTLKGGAPTKVT-E(Edans)、
硼酸硼砂缓冲液。
所述SARS-Cov-2木瓜样蛋白酶浓度为0.01-1mg/mL;
优选地,所述底物肽Dabcyl-FTLKGGAPTKVT-E(Edans)的浓度为 0.1mM-5mM;其中Dabcyl是猝灭剂4-二甲胺偶氮苯4’-羧酸,Edans是 荧光团5-(2-氨基乙氨基)-1-萘磺酸;
优选地,所述硼酸硼砂缓冲液的浓度为10-100毫摩尔/升;所述硼酸 硼砂缓冲液的PH为7-9。
其中采用的SARS-Cov2木瓜样蛋白酶购自CrystalO Biopharma,底物 Dabcyl-FTLKGGAPTKVT-E(Edans)委托GL biochem定制合成,硼酸硼砂缓冲 液购自雷根生物。
本实施例采用的试剂为:
SARS-Cov-2木瓜样蛋白酶(浓度为0.1mg/mL),底物肽 Dabcyl-FTLKGGAPTKVT-E(Edans)(浓度为0.1mM-5mM),硼酸硼砂缓冲液 (PH=7-9)。
本发明实验过程用荧光酶标仪进行荧光检测。
实施例1:抑制剂Eflornithine不同浓度下底物肽在木瓜样蛋白酶代谢下 荧光强度随时间变化
具体实施过程为:
1)SARS-Cov2木瓜样蛋白酶和底物肽储液均保存于-80℃冰箱中;
2)将SARS-Cov2木瓜样蛋白酶(浓度为0.1mg/mL)在冻存板(-4至4℃) 里室温下融化,取1uL稀释于98uL硼酸硼砂缓冲液(PH=7.4)中,加 入检测板中;
3)将不同浓度的抑制剂(Eflornithine,浓度为0,0.025mM,0.125mM, 0.25mM,0.5mM,1mM,2.5mM)分别取1uL加入上述步骤(2)获得的溶 液中;
4)将相同浓度的底物肽(0.5mM)1uL加入上述步骤(3)获得的溶液中, 使用荧光酶标仪37℃孵育,并使用荧光酶标仪监测342nm激发,496nm 处的荧光发射值,边孵育边检测,每1分钟采一点;
5)抑制剂存在的条件下,底物肽在酶代谢下荧光强度随时间缓慢增强效果 如下图1,其结果显示,该底物肽被酶催化产生的荧光增强可以被抑制剂 Eflornithine所抑制,并且这种抑制作用随浓度增加而增强。
实施例2:Eflornithine对新型冠状病毒木瓜样蛋白酶的抑制能力测试 具体实施过程如下:
1)SARS-Cov2木瓜样蛋白酶和底物肽储液均保存于-80℃冰箱中;
2)将SARS-Cov2木瓜样蛋白酶在冻存板(-4至4℃)里室温下融化,取 1uL稀释于98uL硼酸硼砂缓冲液(PH=7.4)中,加入检测板中;
3)将不同浓度的抑制剂(Eflornithine,浓度为0,0.025mM,0.1mM,0.25mM,0.5mM,1mM,2.5mM)分别取1uL加入上述步骤(2)获得的溶液中;
4)将相同浓度的底物肽(0.5mM)1uL加入上述步骤(3)获得的溶液中, 使用荧光酶标仪37℃孵育,并使用荧光酶标仪监测342nm激发,496nm处 的荧光发射值,边孵育边检测,孵育1h;
5)统计各组孵育前后342nm激发,496nm处的荧光发射值。以control组 (抑制剂浓度为0组)孵育前后的荧光变化值作为100,不同抑制组的孵育 前后荧光变化值与之相比得到剩余活性值(ResidualActivity)。使用 GraphPad Prism6软件,以抑制剂浓度的对数值(log(Inhibitor))为横 坐标,对应的剩余活性值(ResidualActivity)为纵坐标。结果如图2所 示,得到抑制剂的IC50值。表1列举了化合物1-3对SARS-Cov2 PLpro抑 制的活性数据。IC50计算的公式为Y=100/(1+10^((X-LogIC50))),其中Y 代表剩余活性分数,X代表抑制剂化合物浓度的常用对数,∧指的是幂算法。 图2所示为所示为不同抑制剂浓度对抑制酶活性比例作图,可以得到该化 合物的抑制能力,用抑制酶活性一半时的抑制剂浓度来表示。
表1:化合物1结构和抑制新型冠状病毒木瓜样蛋白酶(PLpro)IC50值
本发明所述的Eflornithine对冠状病毒尤其是新型冠状病毒的靶点木 瓜样蛋白酶Plpro的酶活性有较强抑制作用,可用于制备抗冠状病毒尤其 是抗新型冠状病毒感染的药物。
Claims (10)
1.Eflornithine在制备抗冠状病毒感染药物中的应用。
3.按照权利要求1或2所述的应用,其特征在于,所述Eflornithine可以抑制冠状病毒木瓜样蛋白酶的酶活性。
4.按照权利要求1或2所述的应用,其特征在于,所述Eflornithine在制备冠状病毒PLpro蛋白酶抑制剂药物中的应用。
5.如权利要求1或2所述用途,其特征在于,所述冠状病毒可以是HCoV-229E、HCoV-OC43、HCoV-NL63、HCoV-HKU、SARS-CoV、MERS-CoV、或者新型冠状病毒(SARS-CoV-2)。
6.如权利要求5所述冠状病毒,其特征在于,可优选为新型冠状病毒(SARS-CoV-2)。
7.按照权利要求1或2所述的应用,其特征在于,其中式1化合物包括其旋光异构体,其水合物中的一种或二种以上;所述水合物的结晶水数目为1-16中的任意实数,优选为整数。
8.一种预防和/或治疗冠状病毒感染药物或引起的炎症药物,其特征在于,包含Eflornithine及其药学上可以接受的盐中的一种或二种以上。
9.一种冠状病毒中木瓜样蛋白酶抑制药物,其特征在于,包含Eflornithine及其药学上可以接受的盐中的一种或二种以上。
10.根据权利要求8或9所述药物,所述药物为注射剂、片剂、丸剂、胶囊、悬浮剂、颗粒剂、喷剂或乳剂。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011014081.2A CN114246855A (zh) | 2020-09-24 | 2020-09-24 | Eflornithine在制备抗冠状病毒感染药物中的应用及药物 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011014081.2A CN114246855A (zh) | 2020-09-24 | 2020-09-24 | Eflornithine在制备抗冠状病毒感染药物中的应用及药物 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN114246855A true CN114246855A (zh) | 2022-03-29 |
Family
ID=80789925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011014081.2A Pending CN114246855A (zh) | 2020-09-24 | 2020-09-24 | Eflornithine在制备抗冠状病毒感染药物中的应用及药物 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN114246855A (zh) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190133985A1 (en) * | 2016-03-24 | 2019-05-09 | Orbus Therapeutics, Inc. | Compositions and methods for use of eflornithine and derivatives and analogs thereof to treat cancers, including gliomas |
-
2020
- 2020-09-24 CN CN202011014081.2A patent/CN114246855A/zh active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190133985A1 (en) * | 2016-03-24 | 2019-05-09 | Orbus Therapeutics, Inc. | Compositions and methods for use of eflornithine and derivatives and analogs thereof to treat cancers, including gliomas |
Non-Patent Citations (1)
Title |
---|
OGNJEN PERIŠIĆ: "Recognition of potential Covid-19 drug treatments through study of existing protein-drug structures: an analysis of thermodynamically active residues", 《RESEARCHGATE》 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN112137991A (zh) | 二硒类化合物作为冠状病毒3c样蛋白酶抑制剂的应用及抑制剂、药物 | |
CN114617880B (zh) | Iowh-032在制备抗冠状病毒药物中的应用及药物 | |
CN112043706A (zh) | Trazodone在制备冠状病毒木瓜样蛋白酶PLPro抑制剂药物中的应用 | |
CN113620929A (zh) | 醛基类化合物及其制备方法、药物组合物和用途 | |
Skoreński et al. | Phosphonate inhibitors of West Nile virus NS2B/NS3 protease | |
CN114515286A (zh) | Octenidine在制备抗冠状病毒感染药物中的应用 | |
CN112156084A (zh) | 二硒类化合物作为冠状病毒木瓜样蛋白酶抑制剂的应用及抑制剂、药物 | |
CN114246850A (zh) | 对苯醌或其衍生物在制备抗冠状病毒药物中的应用及药物 | |
CN114246855A (zh) | Eflornithine在制备抗冠状病毒感染药物中的应用及药物 | |
CN113930481B (zh) | 一种木瓜样蛋白酶的抑制剂筛选试剂盒及其应用 | |
CN114515290A (zh) | Perifosine在制备抗冠状病毒感染药物中的应用 | |
CN114469937B (zh) | Pf-05231023在制备抗冠状病毒感染药物中的应用 | |
CN114246854A (zh) | Succimer在制备抗冠状病毒感染药物中的应用及药物 | |
CN114617883B (zh) | fiboflapon在制备抗冠状病毒药物中的应用及药物 | |
CN114617884B (zh) | Pfk-158在制备抗冠状病毒药物中的应用及药物 | |
CN114515281B (zh) | Crystal Violet在制备抗冠状病毒感染药物中的应用 | |
CN114515282B (zh) | Sorbic acid在制备抗冠状病毒感染药物中的应用 | |
CN114469914B (zh) | 苯乙肼在制备冠状病毒木瓜样蛋白酶抑制剂中的应用 | |
CN114617861B (zh) | Tpi-1及其衍生物在制备抗冠状病毒药物中的应用及药物 | |
CN114617862A (zh) | Vilanterol在制备抗冠状病毒药物中的应用及药物 | |
CN114617864A (zh) | 冠状病毒木瓜样蛋白酶PLPro抑制剂Lomustine及其用途 | |
CN114504575A (zh) | 泮托拉唑在制备抑制冠状病毒的产品及抗冠状病毒感染药物中的应用 | |
CN114617877A (zh) | PX-12在制备冠状病毒木瓜样蛋白酶PLPro抑制剂药物中的应用 | |
CN114617887A (zh) | Oltipraz在制备抗冠状病毒药物中的应用及药物 | |
CN114617893A (zh) | Epiandrosterone在制备抗冠状病毒药物中的应用及药物 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220329 |