申请人:Beecham Group Limited
公开号:US04387051A1
公开(公告)日:1983-06-07
The present invention provides the compounds of the formula (II): ##STR1## and pharmaceutically acceptable salts and esters thereof wherein R.sup.3 is a hydrogen atom, a group HO.sub.3 S-- or a group R.sup.5 CO wherein R.sup.5 is C.sub.1-6 alkyl, C.sub.2-6 alkenyl, aryl, aryl(C.sub.1-6)alkyl or aryloxy(C.sub.1-6)alkyl; and R.sup.4 is an organic group other than methyl bonded to the --CO--NH-- moiety via a carbon atom; with the proviso that when R.sup.3 is a hydrogen atom or a group R.sup.5 CO the stereochemical configuration at the .alpha.-carbon atom of the C-6 substituent is S, and with the further proviso that when R.sup.3 is a group HO.sub.3 S-- the hydrogen atoms at C-5 and C-6 are cis. Their use is described as are processes for their preparation. Compounds wherein the R.sup.4 CO-- moiety is replaced by a hydrogen atom are also prepared.
本发明提供了式(II)的化合物:##STR1##及其药学上可接受的盐和酯,其中R.sup.3是氢原子,HO.sub.3S-基团或R.sup.5CO基团,其中R.sup.5是C.sub.1-6烷基,C.sub.2-6烯基,芳基,芳基(C.sub.1-6)烷基或芳氧基(C.sub.1-6)烷基; R.sup.4是与--CO--NH--基团通过碳原子键合的甲基以外的有机基团; 前提是当R.sup.3是氢原子或R.sup.5CO基团时,C-6取代基的α-碳原子的立体化学构型为S; 进一步的前提是当R.sup.3是HO.sub.3S-基团时,C-5和C-6上的氢原子是顺式的。描述了它们的用途以及制备它们的过程。还制备了R.sup.4CO-基团被氢原子取代的化合物。