Novel C-2 substituted carbapenem derivatives .2. Synthesis and structure-activity relationships of isoxazolidin-2-yl, isoxazolidin-2-yl and 2-pyrazolin-2-yl carbapenems generated using 1,3-dipolar cycloaddition chemistry

被引:12
作者
Burton, G [1 ]
Clarke, GJ [1 ]
Douglas, JD [1 ]
Eglington, AJ [1 ]
Frydrych, CH [1 ]
Hinks, JD [1 ]
Hird, NW [1 ]
Hunt, E [1 ]
Moss, SF [1 ]
Naylor, A [1 ]
Nicholson, NH [1 ]
Pearson, MJ [1 ]
机构
[1] SMITHKLINE BEECHAM PHARMACEUT,BETCHWORTH RH3 7AJ,SURREY,ENGLAND
关键词
D O I
10.7164/antibiotics.49.1266
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
A series of carbapenems containing novel C-2 semisaturated heterocyclic substituents were synthesised by 1,3 dipolar cycloaddition reactions of nitrile oxides, nitrile imines and a nitrone to 2-vinylcarbapenem. The isoxazoline and isoxazolidine compounds showed potent antibacterial activity but moderate stability to human dehydropeptidase 1 (DHP-I). Stability to DHP-I was improved by methyl substitution in the isoxazoline ring, but at the expense of antibacterial activity. The pyrazolines exhibited excellent stability to DHP-I, but reduced potency against Gram-negative organisms.
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页码:1266 / 1274
页数:9
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