(2,3)-alpha-Methylenepenams: synthesis and in vitro activity.
Bioorg Med Chem 1993;
1:173-82. [PMID:
8081849 DOI:
10.1016/s0968-0896(00)82118-5]
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Abstract
A series of alpha-methylene penicillins was synthesized and SAR were studied. The alpha-isomers were found to be chemically reactive and biologically active in contrast to the beta-isomers. In addition, the alpha-isomers have broader spectrum of in vitro activity than the corresponding penicillins. Generally, the alpha-isomers are more active against gram-negative bacteria than the corresponding penicillins, but slightly weaker in potency towards gram-positive organisms.
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