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Synthesis and structure-activity relationships of 7 beta-[(Z)-2-(2- aminothiazol-4-yl)-3-(substituted)-2-propenoylamino]-3-cephems with C-3 substitutions.

作者信息

Ishikura K, Kubota T, Minami K, Hamashima Y, Nakashimizu H, Motokawa K, Kimura Y, Miwa H, Yoshida T

机构信息

Shionogi Research Laboratories, Shionogi & Co., Ltd., Osaka, Japan.

出版信息

J Antibiot (Tokyo). 1994 Apr;47(4):466-76. doi: 10.7164/antibiotics.47.466.

DOI:10.7164/antibiotics.47.466
PMID:8195047
Abstract

Synthesis and biological activity of a series of 7 beta-[(Z)-2-(2- aminothiazol-4-yl)-3-(substituted)-2-propenoylamino]-3-cephe m-4-carboxylic acids with C-3 substitutions and their pivaloyloxymethyl esters are described. These acid compounds exhibited potent antibacterial activity against both Gram-positive and Gram-negative bacteria. Pivaloyloxymethyl esters of selected compounds in this series were found to be well absorbed from small intestine in mice. Pivaloyloxymethyl 7 beta-[(Z)-2-(2-aminothiazol-4-yl)-2-pentenoylamino]-3- carbamoyloxymethyl-3-cephem-4-carboxylase hydrochloride hydrate (S-1108) was finally selected as the candidate for clinical evaluation.

摘要

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