(8R,9S,13S,14S,17S)-13-Methyl-2-trimethylsilanyl-3,17-bis-trimethylsilanyloxy-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene
chloro-trimethyl-silane
2,4-dibromo-3,17β-bis(trimethylsiloxy)estra-1,3,5(10)-triene
2-bromo-3,17β-bis(trimethylsiloxy)estra-1,3,5(10)-triene