3,20-bis(ethylenedioxy)-5β-pregnan-11β-yl-O-(S-methyldithiocarbonate)

tert-butyl(((3R,5R,8R,9S,10S,13S,14S,17R)-10,13-dimethyl-17-(prop-1-en-2-yl)hexadecahydro-1H-cyclopenta[a]phenanthren-3-yl)oxy)dimethylsilane