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Novel thienopyridine compounds and use thereof in medicine

A compound and pyridine technology, applied in the field of new thienopyridine compounds and their medical applications, can solve problems such as low therapeutic efficacy, increased bleeding risk, and increased risk of massive bleeding

Inactive Publication Date: 2013-10-23
INST OF PHARMACOLOGY & TOXICOLOGY ACAD OF MILITARY MEDICAL SCI P L A
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Clopidogrel, the second-generation thienopyridine ADP P2Y12 receptor antagonist, is currently the standard treatment drug for anti-platelet aggregation; After the two-step metabolism of cytochrome P450, the active metabolite can be obtained, and the obtained active metabolite irreversibly binds to the P2Y12 receptor, which leads to the effect of clopidogrel for up to 4-5 days and increases the risk of massive bleeding. risk
Prasugrel is a third-generation thienopyridine ADP P2Y12 receptor antagonist. In its metabolic activation process, only one step depends on liver cytochrome P450, and the cyclopropylmethanone group in the molecular structure replaces the original clopidogrel Gray partially hydrolyzes the inactive ester group, so its ability to inhibit platelet aggregation is stronger and more effective; however, it is accompanied by a significant increase in the risk of bleeding and will run at a high level for a long time

Method used

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  • Novel thienopyridine compounds and use thereof in medicine
  • Novel thienopyridine compounds and use thereof in medicine
  • Novel thienopyridine compounds and use thereof in medicine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Example 1 5-(2-methylene-3,5,6-trimethylpyrazine)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine hydrochloride (compound I 1 )Synthesis

[0070] Dissolve 1.5g (11mmol) of 2,3,5,6-tetramethylpyrazine in 50mL of carbon tetrachloride, add 2.0g (11mmol) of NBS and a catalytic amount of benzoyl peroxide, reflux reaction under light, overnight React for 8-16 hours, monitor the reaction by TLC (ethyl acetate / petroleum ether=1 / 1), terminate the reaction after the raw materials disappear, cool to below 50°C, filter with suction, concentrate the filtrate under reduced pressure, and separate by column chromatography to obtain a white solid 2-Bromomethyl-3,5,6-trimethylpyrazine.

[0071] 1.75 g (10 mmol) of tetrahydrothienopyridine (THTP) hydrochloride was dissolved in 30 mL of dichloromethane, 1.2 equivalents of triethylamine (TEA) was added, and the reaction was stirred at 25° C. for one hour to obtain a mixed solution. Add 2.14g (10mmol) 2-bromomethyl-3,5,6-trimethylpyrazine, 2.0 eq...

Embodiment 2

[0072] Example 2 5-(2-methylenepyrazine)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine hydrochloride (compound I 2 )Synthesis

[0073] Dissolve 1.0g (11mmol) 2-methylpyrazine in 50mL carbon tetrachloride, add 2.0g (11mmol) NBS and a catalytic amount of benzoyl peroxide, reflux reaction under light, react overnight for 8-16 hours, TLC Monitor the reaction (ethyl acetate / petroleum ether=1 / 1), stop the reaction after the raw materials disappear, cool to below 50°C, filter with suction, concentrate the filtrate under reduced pressure, and separate by column chromatography to obtain light yellow liquid 2-bromomethylpyridine Zinc.

[0074] 1.75 g (10 mmol) of tetrahydrothienopyridine (THTP) hydrochloride was dissolved in 30 mL of dichloromethane, 1.2 equivalents of triethylamine (TEA) was added, and the reaction was stirred at 25° C. for one hour to obtain a mixed solution. Add 1.71g (10mmol) 2-bromomethylpyrazine, 2.0 equivalents of TEA and catalytic amount of NaI to the above mixed so...

Embodiment 3

[0075] Example 3 5-(2-methylenepyridine)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine hydrochloride (compound I 3 )Synthesis

[0076] Dissolve 1.0g (11mmol) 2-picoline in 50mL carbon tetrachloride, add 2.0g (11mmol) NBS and a catalytic amount of benzoyl peroxide, reflux reaction under light, react overnight for 8-16 hours, monitor by TLC Reaction (ethyl acetate / petroleum ether=1 / 1), the reaction was terminated after the raw materials disappeared, cooled to below 50°C, filtered with suction, concentrated the filtrate under reduced pressure, and separated by column chromatography to obtain 2-bromomethylpyridine as a yellow liquid.

[0077] 1.75 g (10 mmol) of tetrahydrothienopyridine (THTP) hydrochloride was dissolved in 30 mL of dichloromethane, 1.2 equivalents of triethylamine (TEA) was added, and the reaction was stirred at 25° C. for one hour to obtain a mixed solution. Add 1.70g (10mmol) bromomethylpyridine, 2.0 equivalents of triethylamine and catalytic amount of sodium iodide...

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Abstract

The invention relates to novel thienopyridine compounds or pharmaceutically acceptable salts of the novel thienopyridine compounds, medicine compositions comprising the thienopyridine compounds as active ingredients, and an application of the novel thienopyridine compounds or pharmaceutically acceptable salts of the novel thienopyridine compounds to the preparation of an antiplatelet drug. Het is trimethylpyrazinyl, pyrazinyl, pyridyl, thienyl, or indolyl; R1 is H or cyclopropylethanone; R2 is H or acetoxyl.

Description

technical field [0001] The present invention relates to novel thienopyridine compounds or pharmaceutically acceptable salts thereof, pharmaceutical compositions containing these compounds as active ingredients, and the use of said thienopyridine compounds or pharmaceutically acceptable salts for preparing anti-inflammatory drugs. Application of platelet drugs. [0002] [0003] Wherein, Het is trimethylpyrazinyl, pyrazinyl, pyridyl, thienyl, indolyl; R 1 Is H or cyclopropanyl; R 2 is H or acetoxy. Background technique [0004] Thrombotic disease is a common disease, often manifested as myocardial infarction, ischemic cerebral infarction, and venous thromboembolism. The mortality rate and disability rate of thromboembolic diseases are high. Arteriovenous thrombosis is the leading cause of cardiovascular disease morbidity and death, and it is also one of the leading causes of death in cancer patients; 6.5 million people worldwide are affected by deep vein thrombosis ever...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D495/04A61K31/444A61K31/497A61K31/4365A61P7/02
Inventor 仲伯华周立宏何新华史卫国贾红新
Owner INST OF PHARMACOLOGY & TOXICOLOGY ACAD OF MILITARY MEDICAL SCI P L A
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