Synthesis and antimicrobial properties of cephalosporin derivatives substituted on the C(7) nitrogen with arylmethyloxyimino or arylmethyloxyamino alkanoyl groups
作者:Daniela Gentili、Marco Macchia、Elisabetta Menchini、Susanna Nencetti、Elisabetta Orlandini、Armando Rossello、Giampietro Broccali、Donatella Limonta
DOI:10.1016/s0014-827x(99)00017-8
日期:1999.4
7-aminocephalosporanic acid (7-ACA) derivatives substituted on the C(7) nitrogen with 2-(arylmethyloxyimino)propionyl (3a-f), 2-(arylmethyloxyamino)propionyl (4a-d) and (arylmethyloxyamino)acetyl (2a-d) moieties were synthesized by reaction of the appropriate acylating agents with 7-ACA protected as a t-butyl ester, followed by removal of the t-butyl protecting group. The new compounds, tested in vitro for their antimicrobial
一些7-氨基头孢烷酸(7-ACA)衍生物在C(7)氮上被2-(芳基甲氧基亚氨基)丙酰基(3a-f),2-(芳基甲氧基氨基)丙酰基(4a-d)和(芳基甲氧基氨基)乙酰基(2a)取代-d)通过适当的酰化剂与被保护为叔丁酯的7-ACA反应,然后去除叔丁基保护基,来合成部分。在体外测试过的新化合物对革兰氏阳性和革兰氏阴性细菌具有抗菌活性,事实证明它们仅具有针对革兰氏阳性微生物的适度活性。