Title: Novel cephalosporin derivatives and processes for preparation thereof
Application Number: 94103365 Application Date: 1994.03.31
Publication Number: 1169431 Publication Date: 1998.01.07
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: A61K31/545,C07D519/00
Applicant(s) Name: YuHan Corp. Address:
Inventor(s) Name: Jong-Wook Lee, Jeong-Seok Chae
Attorney & Agent: LIU GUOPING
Abstract:
     The present invention relates to novel cephalosporin derivatives or pharmaceutically acceptable non-toxic salts used as antibiotics. Wherein in the chemical formula, R' is a hydrogen or an optinally halogen-substituted C1-3 alkyl group, a propagyl group or -C(Ra) (Rb) COOH, wherein Ra 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, nitro, acetyl or formyl group, and Q is CH, N or CCL.
Time: 5