Masakitsushima, Iwamatsu K, Umemura E, Kudo T, Sato Y, Shiokawa S, Takizawa H, Kano Y, Kobayashi K, Ida T, Tamura A, Atsumi K. CP6679, a new injectable cephalosporin. Part 1: synthesis and structure-activity relationships.
Bioorg Med Chem 2000;
8:2781-9. [PMID:
11131169 DOI:
10.1016/s0968-0896(00)00214-5]
[Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A series of cephalosporins bearing a 5,5-fused ring system, an (imidazo[5,1-b]thiazolium-6-yl)methyl group, at the C-3 position were synthesized and evaluated for in vitro antibacterial activities. CP6679 (1s) and its analogues showed potent antibacterial activities against gram-positive and gram-negative bacteria, including Pseudomonas aeruginosa. They were also highly active against methicillin-resistant Staphylococcus aureus (MRSA). CP6679 (1s) showed more potent antibacterial activity than ceftazidime (CAZ) or cefpirome (CPR) against Pseudomonas aeruginosa and MRSA.
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