(8S,9S,10R,13S,14S,17R)-17-(5,5-diphenylpenta-2,4-dien-2-yl)-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one

溴

氯仿

臭氧

3-oxoandrost-4-ene-17β-carboxaldehyde