作者:John R. Williams、Hua Gong、Nathan Hoff、Olaoluwa I. Olubodun
DOI:10.1021/jo051733a
日期:2005.12.1
diosgenin, 8. Key reactions involve an efficient synthesis of the C-15α hydroxyl steroid from a C-16β hydroxyl steroid by an unexpected 1,2-transposition strategy, a stereospecific glycosylation of a hindered C-15α alcohol using glycosyl fluoride as a glycosyl donor and a highly chemoselective acetylation of the C-26 primaryalcohol by catalytic transesterification.