N-[2,5-Bis(trifluoromethyl)phenyl]-3-oxo-4-aza-5a-androst1-ene-17beta-carboxamide ;(5alpha,17beta)-N-[2,5-Bis(trifluoromethyl)phenyl]-3-oxo-4-azaandrost-1-ene-17-carboxamide;