Androstane-17-carboxylic acid, 3-hydroxy-, methyl ester, (3a,5a,17b)-

3β-formyloxy-5β-androstan-17β-carboxylic acid methyl ester

3α-(2-tetrahydropyranyloxy)-21-nor-5α-pregnan-20-ol

3α-(2-tetrahydropyranyloxy)-5α-androstane-17β-carbaldehyde