p. 6276 - 6279
(2012/10/30)p. 4874 - 4877
(2009/11/30)(1S),3(R)-bis<(tert-butyldimethylsilyl)oxy>-20(S)-(hydroxymethyl)-9,10-secopregna-5(E),7(E),10(19)-triene
methyl (R)-3-(benzo[d]thiazol-2-ylsulfonyl)-2-methylpropanoate
(5E,7E)-(1S,3R,20S)-1,3-bis<<(1,1-dimethylethyl)dimethylsilyl>oxy>-20-methyl-9,10-secopregna-5,7,10(19)-trien-21-al