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
Application number
ZA200305877A
Inventor
Hiroyuki Egawa
Yousuke Furuta
Jun Sugita
Sayuri Uehara
Shoichi Hamamoto
Kenji Yonezawa
Original Assignee
Toyama Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyama Chemical Co Ltd filed Critical Toyama Chemical Co Ltd
Publication of ZA200305877B publication Critical patent/ZA200305877B/en

Links

ZA200305877A 2000-02-16 2001-02-14 Novel pyrazine derivatives or salts thereof, pharmaceutical composition containing the same, and production intermediates thereof. ZA200305877B (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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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