2-[3-(tert-butyldimethylsilyloxy)-13-methyl-7,8,9,11,12,13,14,15,-octahydro-6H-cyclopenta[a]phenanthren-17-yl]-6-methylheptan-3-ol

(+)-3-(tert-butyldimethylsilyloxy)-13-methyl-17-(1-methyl-2-oxoethyl)-7,8,9,11,12,13,14,15,-octahydro-6H-cyclopenta[a]phenanthrene

(16α,17α)-(+)-2-[3-(tert-butyldimethylsilyloxy)-16,17-dihydroxy-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-yl]-6-methylheptan-3-one 3-ethylene ketal