Structural Modifications and Biological Evaluation of 3-Isoxazolylvinylcephalosporins
作者:Ae Nim Pae、Jie Eun Lee、Bo Hyung Kim、Joo Hwan Cha、Hea Yeon Kim、Yong Seo Cho、Kyung Il Choi、Hun Yeong Koh、Eun Lee、Je Hak Kim
DOI:10.1016/s0040-4020(00)00415-4
日期:2000.7
Structural modifications and biological evaluations of 3-isoxazolylvinylcephalosporins (I) were performed. The replacement of a hydrogen atom at the 7-aminothiazole group by a chlorine resulted in an improvement: of the activity against resistant Gram-positive bacterial strains including the methicillin-resistant Staphylococcus aureus (MRSA) and the ciprofloxacin-resistant Staphylococcus aureus (CRSA). The introduction of other heterocycles such as an isothiazole or a thiadiazole in place of the isoxazole moiety gave slightly decreased in vitro activities. (C) 2000 Elsevier Science Ltd. All rights reserved.