Synthesis and structure-activity relationships of 7.BETA.-((Z)-2-(2-aminothiazol-4-yl)-3-(substituted)-2-propenoyl-amino)-3-desacetoxymethylcephalosporins.
Synthesis and structure-activity relationships of 7.BETA.-((Z)-2-(2-aminothiazol-4-yl)-3-(substituted)-2-propenoyl-amino)-3-desacetoxymethylcephalosporins.
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:KOJI ISHIKURA、TADASHI KUBOTA、KYOJI MINAMI、YOSHIO HAMASHIMA、HIROMU NAKASHIMIZU、KIYOSHI MOTOKAWA、YASUO KIMURA、HIDEAKI MIWA、TADASHI YOSHIDA
DOI:10.7164/antibiotics.47.466
日期:——
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-3substitutions 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
Synthesis and structure-activity relationships of 7.BETA.-((Z)-2-(2-aminothiazol-4-yl)-3-(substituted)-2-propenoyl-amino)-3-desacetoxymethylcephalosporins.
作者:KOJI ISHIKURA、TADATOSHI KUBOTA、KYOJI MINAMI、YOSHIO HAMASHIMA、HIROMU NAKASHIMIZU、KIYOSHI MOTOKAWA、TADASHI YOSHIDA
DOI:10.7164/antibiotics.47.453
日期:——
Synthesis and biological activity of a series of 7β-[(Z)-2-(2-aminothiazol-4-yl)-3-(substituted)-2-propenoylamino]-3-cephem-4-carboxylic acids 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.