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-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
一系列7个β-[((Z)-2-(2-氨基噻唑-4-基)-3-(取代)-2-丙烯酰基氨基] -3- Cephe m-4-羧酸的合成及生物活性描述了-3个取代及其新戊酰氧基甲基酯。这些酸化合物对革兰氏阳性和革兰氏阴性细菌均显示出有效的抗菌活性。发现该系列中所选化合物的新戊酰氧基甲基酯在小鼠中被小肠很好吸收。最终选择了新戊酰氧基甲基7β-[((Z)-2-(2-氨基噻唑-4-基)-2-戊烯酰氨基] -3-氨基甲酰氧基甲基-3-cephem-4-羧化酶盐酸盐水合物(S-1108)用于临床评估。