Cephalosporin derivatives

PCT No. PCT/KR93/00087 Sec. 371 Date Mar. 31, 1995 Sec. 102(e) Date Mar. 31, 1995 PCT Filed Sep. 28, 1993 PCT Pub. No. WO94/07898 PCT Pub. Date Apr. 14, 1994The present invention relates to novel cephalosporin derivatives or pharmaceutically acceptable non-toxic salts thereof useful as antibiotics a...

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Main Authors LEE; YEONG N, KANG; HEUI I, RHO; EUN R, HYUN; JAE W, CHOI; YOUNG R, CHAE; JEONG S, LEE; JONG W
Format Patent
LanguageEnglish
Published 14.01.1997
Edition6
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC CHEMISTRY
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS
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Summary:PCT No. PCT/KR93/00087 Sec. 371 Date Mar. 31, 1995 Sec. 102(e) Date Mar. 31, 1995 PCT Filed Sep. 28, 1993 PCT Pub. No. WO94/07898 PCT Pub. Date Apr. 14, 1994The present invention relates to novel cephalosporin derivatives or pharmaceutically acceptable non-toxic salts thereof useful as antibiotics and to processes for the preparation thereof. (I) wherein: R1 is a hydrogen or an optionally halogen-substituted C1-3 alkyl group, a propargyl group or -C(Ra)(Rb)COOH, wherein R1 and Rb are independently a hydrogen or a C1-3 alkyl group; R2, R3, R4, R5, R6 and R7 are independently a hydrogen or halogen or a C1-3 alkyl, amino or hydroxy C1-3 alkylthio, cyano, carbamoyl, carboxyl, hydroxy C1-3 alkyl, nitro, acetyl or formyl group; and Q is CH, N or CCl.
Bibliography:Application Number: US19950411767