3β-[(tert-butyldiphenylsilyl)oxy]-5α-androstan-6α,7β-diol-17-one

3β-[(tert-butyldiphenylsilyl)oxy]-17,17-(ethylenedioxy)-7β-acetoxy-androst-5-ene

(Z)-3β-[(tert-butyldiphenylsilyl)oxy]-6α,7β-[(methylethylidene)-bis-oxy]-5α-pregn-17(20)-ene