p. 1520 - 1522
(1992)1α,3β-bis(tert-butyldimethylsilyloxy)-20(S)-(3-hydroxy-3-methylbutyloxy)pregna-5,7-diene
1α,3β-dihydroxy-20(S)-(3-hydroxy-3-methylbutyloxy)pregna-5,7-diene
1α,25-dihydroxy-22-oxacholesta-5,7-dien-3β-yl (2',2',2'-trichloroethylglutarate)