ZA200305877B - Novel pyrazine derivatives or salts thereof, pharmaceutical composition containing the same, and production intermediates thereof. - Google Patents
Novel pyrazine derivatives or salts thereof, pharmaceutical composition containing the same, and production intermediates thereof.Info
- Publication number
- ZA200305877B ZA200305877B ZA200305877A ZA200305877A ZA200305877B ZA 200305877 B ZA200305877 B ZA 200305877B ZA 200305877 A ZA200305877 A ZA 200305877A ZA 200305877 A ZA200305877 A ZA 200305877A ZA 200305877 B ZA200305877 B ZA 200305877B
- Authority
- ZA
- South Africa
- Prior art keywords
- salts
- pharmaceutical composition
- same
- composition containing
- pyrazine derivatives
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000037486 | 2000-02-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA200305877B true ZA200305877B (en) | 2004-04-28 |
Family
ID=30428198
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA200206184A ZA200206184B (en) | 2000-02-16 | 2001-02-14 | Novel pyrazine derivatives or salts thereof, and pharmaceutical composition containing the same. |
ZA200305877A ZA200305877B (en) | 2000-02-16 | 2001-02-14 | Novel pyrazine derivatives or salts thereof, pharmaceutical composition containing the same, and production intermediates thereof. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA200206184A ZA200206184B (en) | 2000-02-16 | 2001-02-14 | Novel pyrazine derivatives or salts thereof, and pharmaceutical composition containing the same. |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN100390153C (en) |
ZA (2) | ZA200206184B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101230043B (en) * | 2008-02-18 | 2010-11-24 | 靳广毅 | 3-oxide-2-methylamide derivatives as well as preparation method and use thereof |
WO2010087117A1 (en) * | 2009-01-28 | 2010-08-05 | 日本曹達株式会社 | Method for producing dichloropyrazine derivative |
CN102775358B (en) * | 2012-08-22 | 2015-05-27 | 山东齐都药业有限公司 | Preparation method of 6-fluoro-3-hydroxy-2-pyrazinamide |
CN103833812A (en) * | 2012-11-23 | 2014-06-04 | 中国人民解放军军事医学科学院毒物药物研究所 | Pyrazine derivative and medical application thereof |
CN104496917B (en) * | 2014-12-15 | 2017-06-20 | 南京华威医药科技开发有限公司 | A kind of synthetic method of Favipiravir |
CN106866553B (en) * | 2017-03-28 | 2020-02-04 | 中南大学 | Synthesis method of Favipiravir |
CN113248450B (en) * | 2020-02-07 | 2024-04-12 | 北京四环制药有限公司 | Fapila preparation method of pyrrosia lingua |
CN112300083B (en) * | 2020-04-20 | 2021-08-03 | 常州制药厂有限公司 | Preparation method of Favipiravir |
WO2021255681A1 (en) * | 2020-06-17 | 2021-12-23 | Hikal Limited | A simple process for the preparation of favipiravir and its intermediates thereof |
CN116003372A (en) * | 2022-09-14 | 2023-04-25 | 多氟多新材料股份有限公司 | Preparation method of fluoroethylene carbonate |
CN115536599B (en) * | 2022-09-26 | 2024-06-25 | 合肥利夫生物科技有限公司 | Preparation method of fampicin intermediate 3, 6-difluoro-2-pyrazinecarbonitrile |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4518599A (en) * | 1982-09-30 | 1985-05-21 | Merck & Co., Inc. | 2-Amino-3-cyano-5-halo-6-(substituted)pyrazine |
DE3374863D1 (en) * | 1982-11-12 | 1988-01-21 | Merck & Co Inc | Substituted nitropyrazine compounds, process for their preparation and pharmaceutical compositions containing them |
US4609659A (en) * | 1985-01-16 | 1986-09-02 | Merck & Co., Inc. | 2,6-disubstituted derivatives of 3-nitropyrazines useful as adjuncts to radiation therapy |
EP0532916B1 (en) * | 1991-08-17 | 1997-11-05 | Hoechst Aktiengesellschaft | 2-Fluoropyrazines, process for their preparation, and their use in liquid crystalline mixtures |
JPH10262691A (en) * | 1997-03-24 | 1998-10-06 | Mitsubishi Chem Corp | Production of 3-hydroxy nitrogen-containing 6-membered ring compound |
-
2001
- 2001-02-14 ZA ZA200206184A patent/ZA200206184B/en unknown
- 2001-02-14 CN CNB2005101338124A patent/CN100390153C/en not_active Expired - Lifetime
- 2001-02-14 ZA ZA200305877A patent/ZA200305877B/en unknown
Also Published As
Publication number | Publication date |
---|---|
ZA200206184B (en) | 2003-08-04 |
CN1781911A (en) | 2006-06-07 |
CN100390153C (en) | 2008-05-28 |
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