Synthesis of (22E,24R)-5a-ergosta-2,7,22-trien-6-one
作者:N. V. Kovganko、S. N. Sokolov
DOI:10.1007/bf02238216
日期:1999.1
The synthesis of the 5 alpha-hydroxy-2,7,22-trien-6-one (3) has been achieved by the mesylation of ergosterol (1a) and oxidation of the resulting mesylate (1b) with chromic acid to 3 beta,5 alpha-dihydroxy-7,22-dien-6-one 3-mesylate, followed by elimination.