Antibiotic C-3 cyclobutenedione substituted (1-carba)cephalosporin compounds, compositions, and methods of use thereof
申请人:Bristol-Myers Squibb Company
公开号:EP0484030A2
公开(公告)日:1992-05-06
A compound of formula I
wherein
X is sulfur or CH2;
R1 is hydrogen, hydroxy, amino, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, phenyl optionally substituted with one to three C1-6 alkyl, C1-6 alkyloxy or hydroxy, C1-6 alkylthio, phenylthio optionally substituted with one to three C1-6 alkyl or C1-6 alkyloxy on the phenyl ring, phenylmethyloxy optionally substituted with one to three C1-6 alkyl or C1-6 alkyloxy on the phenyl ring, 1-morpholino, C1-6 alkyloxy, C2-6 alkenylmethyloxy, C3-6 alkynylmethyloxy, C1-6 alkylamino, C1-6 dialkylamino or a radical selected from the group consisting of
and
in which n is 0 to 3, R5 is C1-6 alkyl or hydrogen, and R3 and R4 are independently C1-6 alkyl ;
R2 is hydrogen, a conventional amino protecting group or an acyl group ;
R° is hydrogen or a conventional carboxy protecting group, or -COZR° taken together forms a physiologically hydrolyzable ester; or
pharmaceutically acceptable salts or solvates thereof.
式 I 的化合物
其中
X 是硫或 CH2;
R1 是氢、羟基、氨基、C1-6 烷基、C2-6 烯基、C2-6 炔基、任选被一至三个 C1-6 烷基、C1-6 烷氧基或羟基取代的苯基、C1-6 烷硫基、任选被一至三个 C1-6 烷基或 C1-6 烷氧基取代的苯环上的苯硫基、在苯环上任选被一至三个 C1-6 烷基或 C1-6 烷氧基取代的苯甲氧基、1-吗啉基、C1-6 烷氧基、C2-6 烯基甲基氧基、C3-6 烷炔基甲基氧基、C1-6 烷基氨基、C1-6 二烷基氨基或选自以下组的基团
和
其中 n 为 0 至 3,R5 为 C1-6 烷基或氢,R3 和 R4 独立地为 C1-6 烷基;
R2 是氢、常规氨基保护基团或酰基;
R° 是氢或常规羧基保护基团,或 -COZR° 合在一起形成生理上可水解的酯;或
其药学上可接受的盐或溶剂。