申请人:Bristol-Myers Squibb Co.
公开号:US05106842A1
公开(公告)日:1992-04-21
A compound of formula I ##STR1## wherein X is sulfur or CH.sub.2 ; R.sup.1 is hydrogen, hydroxy, amino, C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, phenyl optionally substituted with one to three C.sub.1-6 alkyl, C.sub.1-6 alkyloxy or hydroxy, C.sub.1-6 alkylthio, phenylthio optionally substituted with one to three C.sub.1-6 alkyl or C.sub.1-6 alkyloxy on the phenyl ring, phenylmethyloxy optionally substituted with one to three C.sub.1-6 alkyl or C.sub.1-6 alkyloxy on the phenyl ring, 1-morpholino, C.sub.1-6 alkyloxy, C.sub.2-6 alkenylmethyloxy, C.sub.3-6 alkynylmethyloxy, C.sub.1-6 alkylamino, C.sub.1-6 dialkylamino or a radical selected from the group consisting of ##STR2## in which n is 0 to 3, R.sup.5 is C.sub.1-6 alkyl or hydrogen, and R.sup.3 and R.sup.4 are independently C.sub.1-6 alkyl; R.sup.2 is hydrogen, a conventional amino protecting group or an acyl group; R.sup.0 is hydrogen or a conventional carboxy protecting group, or --CO.sub.2 R.sup.0 taken together forms a physiologically hydrolyzable ester; or pharmaceutically acceptable salts or solvates thereof.
化合物的化学式为I ##STR1## 其中X是硫或CH.sub.2; R.sup.1是氢,羟基,氨基,C.sub.1-6烷基,C.sub.2-6烯基,C.sub.2-6炔基,苯基,该苯基可选地被1-3个C.sub.1-6烷基,C.sub.1-6烷氧基或羟基,C.sub.1-6烷基硫基,苯基硫基取代,该苯环上的1-3个C.sub.1-6烷基或C.sub.1-6烷氧基,苯基甲氧基,该苯环上的1-3个C.sub.1-6烷基或C.sub.1-6烷氧基,1-吗啉基,C.sub.1-6烷氧基,C.sub.2-6烯基甲氧基,C.sub.3-6炔基甲氧基,C.sub.1-6烷基氨基,C.sub.1-6二烷基氨基或从所述群中选择的基团之一##STR2## 其中n为0至3,R.sup.5为C.sub.1-6烷基或氢,R.sup.3和R.sup.4独立地为C.sub.1-6烷基; R.sup.2是氢,传统的氨基保护基或酰基; R.sup.0是氢或传统的羧基保护基,或--CO.sub.2 R.sup.0在一起形成生理可水解的酯;或其药学上可接受的盐或溶剂。