(8β,20R,22Z)-8-[(tert-butyldimethylsilyl)oxy]-25-[(methoxymethyl)oxy]-des-A,B-17α,21-cyclocholest-22-ene

(8β,20R)-8-[(tert-butyldimethylsilyl)oxy]-23,23-dibromo-des-A,B-17α,21-cyclo-24-norchol-22-yne

(8β,20S)-8-[(tert-butyldimethylsilyl)oxy]-25-[(methoxymethyl)oxy]-des-A,B-17α,21-cyclocholest-22-yne

(1R,3aS,7aR)-4-[2-[(3S,5R)-3,5-Bis-(tert-butyl-dimethyl-silanyloxy)-2-methylene-cyclohex-(Z)-ylidene]-eth-(E)-ylidene]-7a-methyl-1-[5-methyl-1-(4-methyl-4-trimethylsilanyloxy-pentyl)-5-trimethylsilanyloxy-hexyl]-octahydro-indene

(8β,20R)-8-[(tert-butyldimethylsilyl)oxy]-25-[(methoxymethyl)oxy]-des-A,B-17α,21-cyclocholest-22-yne