PENEMS, A NEW CLASS OF BETA-LACTAM ANTIBIOTICS .3. SYNTHESIS OF OPTICALLY-ACTIVE 2-METHYL-(5R)-PENEM-3-CARBOXYLIC ACID

被引:74
作者
ERNEST, I
GOSTELI, J
WOODWARD, RB
机构
[1] Woodward Research Institute
关键词
D O I
10.1021/ja00515a025
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
2-Methyl-(5R)-penem-3-carboxylic acid (3) has been synthesized from the natural 6(R)-amino-(5R)-penicillanic acid as an optically active representative of the novel group of 6-unsubstituted penems. It proved to be the biologically active component of the previously reported, racemic, 2-methylpenem-3-carboxylic acid. The general necessity of a 5R(6R) configuration for the biological activity of bicyclic β-lactam antibiotics is briefly discussed. © 1979, American Chemical Society. All rights reserved.
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页码:6301 / 6305
页数:5
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