p. 1494 - 1499
(1992)1α,3β-bis(tert-butyldimethylsilyloxy)-20(S)-(5,5-ethylenedioxyhexyloxy)pregna-5,7-diene
1α,3β-bis(tert-butyldimethylsilyloxy)-20(S)-(2-ethyloxycarbonylethyloxy)pregna-5,7-diene
1α-tert-butyldimethylsilyloxy-3β-hydroxy-20(S)-(5-hydroxy-5-methylhexyloxy)pregna-5,7-diene
6-{(S)-1-[(1S,3R,9S,10R,13S,14R,17S)-1-(tert-Butyl-dimethyl-silanyloxy)-3-hydroxy-10,13-dimethyl-2,3,4,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]-ethoxy}-hexan-2-one
1-[1,3-bis-(tert-butyldimethylsilanyloxy)-10,13-dimethyl-2,3,4,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]ethanol