申请人:Meiji Seika Kaisha, Ltd.
公开号:US04393058A1
公开(公告)日:1983-07-12
Cephalosporin compounds, intermediate compounds therefor, and processes for preparation thereof are described; the compounds have the formula (I) ##STR1## wherein R.sub.1 and R.sub.2 can each represent hydrogen, a hydroxyl group, a lower alkoxy group, or a substituted or unsubstituted phenylalkoxy group; R.sub.3 represents hydrogen or a lower alkyl group; R.sub.4 represents hydrogen or a hydroxyl group; and R.sub.5 represents ##STR2## wherein R.sub.6 is hydrogen, a lower alkyl group, an aminoalkyl group, an aminoaralkyl group, a --(CH.sub.2).sub.n --SO.sub.3 Na group, or a --(CH.sub.2).sub.n --COR.sub.9 group [wherein R.sub.9 is a hydroxyl group, an OM group (wherein M is an alkali metal), an alkoxy group, or an ##STR3## group, (wherein R.sub.10 and R.sub.11, which may be the same or different, can represent hydrogen or an alkyl group), and n is 0 or an integer of from 1 to 4]; R.sub.7 is hydrogen, a lower alkyl group, an amino group, or a substituted or unsubstituted aryl group; and R.sub.8 represents hydrogen or a lower alkyl group; or, a pharmaceutically acceptable salt thereof.
头孢菌素化合物、其中间体化合物及其制备方法被描述;这些化合物具有式(I)所示的结构:
##STR1##
其中,R1和R2各自可以代表氢、羟基、低级烷氧基或取代或未取代的苯基烷氧基;R3代表氢或低级烷基;R4代表氢或羟基;R5代表:
##STR2##
其中,R6是氢、低级烷基、氨基烷基、氨基芳烷基、--(CH2)n--SO3Na基团或--(CH2)n--COR9基团[其中R9是羟基、OM基团(其中M是碱金属)、烷氧基或:
##STR3##
基团,(其中R10和R11可以相同或不同,可以代表氢或烷基),n是0或1至4的整数];R7是氢、低级烷基、氨基或取代或未取代的芳基;R8代表氢或低级烷基;或者,其药学上可接受的盐。