Potential Bile Acid Metabolites. 25. Synthesis and Chemical Properties of Stereoisomeric 3.ALPHA.,7.ALPHA.,16- and 3.ALPHA.,7.ALPHA.,15-Trihydroxy-5.BETA.-cholan-24-oic Acids.
作者:Takashi Iida、Masahiro Hikosaka、Genta Kakiyama、Keisuke Shiraishi、Claudio D. Schteingart、Lee R. Hagey、Huong-Thu Ton-Nu、Alan F. Hofmann、Nariyasu Mano、Junichi Goto、Toshio Nambara
DOI:10.1248/cpb.50.1327
日期:——
Epimeric 3alpha,7alpha,16- and 3alpha,7alpha,15-trihydroxy-5beta-cholan-24-oic acids and some related compounds were synthesized from chenodeoxycholic acid (CDCA) and ursodeoxycholic acid (UDCA), respectively. The key reaction involved one-step remote oxyfunctionalization of unactivated methine carbons at C-17 of CDCA and at C-14 of UDCA as their methyl ester-peracetate derivatives with dimethyldioxirane