Invention Grant
US5892028A 17, 20-epoxy steroids 失效
17,20-环氧类固醇

17, 20-epoxy steroids
Abstract:
A compound of the formula ##STR1## wherein R is .dbd.O or ##STR2## and the rings A and B are selected from the group consisting of ##STR3## K is oxo or a protector group of oxo of the formula ##STR4## n is 2 or 3 and R.sub.1 is an ether or ester remainder, K' is oxo or a protector oxime, hydrazone or semicarbazone group and the wavy lines symbolize an isomer mixture, a process for their preparation and their use as intermediates.
Public/Granted literature
Information query
Patent Agency Ranking
0/0