(6.ALPHA.,9.BETA.,11.BETA.)-21-(ACETYLOXY)-9,11-EPOXY-6-FLUORO-17-HYDROXYPREGNA-1,4-DIENE-3,20-DIONE
(6.alpha.,9.beta.,11.beta.)-21-(acetyloxy)-9,11-epoxy-6-fluoro-17-hydroxypregna-1,4-diene-3,20-dione