Title of article :
An alternative reduction course of the spiroketal side chain of steroid sapogenins induced by the presence of a 23E-benzylidene moiety
Author/Authors :
Ramos-Enrيquez، نويسنده , , Manuel A. and Romero-ءvila، نويسنده , , Margarita and Flores-ءlamo، نويسنده , , Marcos and Iglesias-Arteaga، نويسنده , , Martيn A.، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2013
Abstract :
Treatment of 25R and 25S-23E-benzylidenespirostanes with NaBH3CN in acetic acid produced the hydride addition at either C-23 (normal course) or C-23′ (abnormal course) leading to 23E-benzylidenefurostanes and 23R-benzylspirostanes. In the case of the 25S-23E-benzylidenespirostane a minor amount of a 23R-benzylfurostane produced by the over-reduction of the side chain was isolated.
Keywords :
23R-Benzylfurostanes , 23E-Benzylidenespirostanes reduction , 23E-Benzylidenefurostanes , 23R-Benzylspirostanes
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters
