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.
一系列7β-[(Z)-2-(2-氨基噻唑-4-基)-3-(取代基)-2-丙烯酰氨基]-3-头孢烯-4-羧酸及其特戊酰氧甲酯的合成与生物活性已被描述。这些酸化合物对革兰氏阳性和革兰氏阴性细菌表现出强大的抗菌活性。在该系列中选择的一些化合物的特戊酰氧甲酯在小肠中被小鼠良好吸收。