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

5'-O-{7-[3,17β-(di-tert-butyldimethylsilyloxy)-1,3,5(10)-estratrien-16β-yl]heptanoyl} 2',3'-O-isopropylideneadenosine

5'-O-{8-[3,17β-(di-tert-butyldimethylsilyloxy)-1,3,5(10)-estratrien-16β-yl]octanoyl} 2',3'-O-isopropylideneadenosine

5'-O-{9-[3,17β-(di-tert-butyldimethylsilyloxy)-1,3,5(10)-estratrien-16β-yl]nonanoyl} 2',3'-O-isopropylideneadenosine

Acetic acid (8R,9S,13S)-3-(tert-butyl-dimethyl-silanyloxy)-13-methyl-7,8,9,11,12,13-hexahydro-6H-cyclopenta[a]phenanthren-17-yl ester