作者:Raju Adhikari、Darren J. Cundy、Craig L. Francis、Mariana Gebara-Coghlan、Beata Krywult、Carolyn Lubin、Gregory W. Simpson、Qi Yang
DOI:10.1071/ch04175
日期:——
A high-yielding, stereoselective synthesis of scymnol 1 has been carried out in five steps starting from commercially available cholic acid 2. The synthesis was designed with the aim of eventual large-scale processing. Triformyloxycholic acid chloride 4 was treated with the magnesium enolate of diethyl malonate to afford the β-keto diester, diethyl 3α,7α,12α-triformyloxy-24-oxo-5β-cholestane-26,27-dioate