(9S,10R,13R,14R,17R)-17-((R)-5-Methoxymethoxy-1,5-dimethyl-hexyl)-10,13-dimethyl-1,2,6,9,10,11,12,13,14,15,16,17-dodecahydro-cyclopenta[a]phenanthren-3-one 在
sodium tetrahydroborate 、
potassium tert-butylate 、
N-氟代双苯磺酰胺 作用下,
生成
(3R,9S,10R,13R,14R,17R)-4,4-Difluoro-17-((R)-5-methoxymethoxy-1,5-dimethyl-hexyl)-10,13-dimethyl-2,3,4,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol 、 (3S,9S,10R,13R,14R,17R)-4,4-Difluoro-17-((R)-5-methoxymethoxy-1,5-dimethyl-hexyl)-10,13-dimethyl-2,3,4,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol