M. Gobbini et M. Torri, AN EXPEDITIOUS ROUTE TO DIHYDROXY-5-BETA-ANDROSTANE-17-BETA-CARBOXALDEHYDE, Synthetic communications, 27(6), 1997, pp. 1115-1122
An efficient and practical synthesis of 3 beta, 14 beta-dihydroxy-5 be
ta-androstane-17 beta-carboxaldehyde is described. The key oxidative c
leavage of the unsaturated lactone of 3-acetyldigitoxigenin 1 utilises
RuO4 as catalytic and NaIO4 as stoichiometric oxidants.