NEW CORTICOIDS, PROCESSES FOR THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM

摘要

1. Corticoids of the general formula I see diagramm : EP0006090,P12,F2 in which the bond _._ _._ _._ _._ _._ _._ _._ _. represents a single bond or a double bond, R2 represents a hydrogen atom or a chlorine atom, R6 represents a hydrogen atom or a fluorine atom, R16 represents a hydrogen atom or a methyl group, R9 represents a hydrogen atom, a fluorine atom or a chlorine atom, R11 alpha and R11 beta together represent an oxo group or R11 alpha represents a hydrogen atom and R11 beta represents a hydroxy group or, if R9 is a chlorine atom, alternatively a fluorine atom or a chlorine atom, and R21a and R21b are the same or different and represent hydrogen or alkyl or cycloalkyl radicals containing up to 8 carbon atoms or together represent an alkylene radical that contains up to 8 carbon atoms and that is optionally interrupted by oxygen or nitrogen.