Synthesis of the C-1 sidechain of the squalestatins and zaragozic acid A
作者:Jack G. Parsons、Mark A. Rizzacasa
DOI:10.1016/0040-4039(94)88298-3
日期:1994.10
A synthesis of a protected C-1 side chain precursor (2) of the anti-cholesteremic agents the squalestatins and zaragozicacid A has been achieved in 9 steps from 1,4-butanediol. The key transformations involve a one pot oxidation/α-methylenation sequence to provide the α,β-unsaturated aldehyde 4 and subsequent asymmetric aldol reaction to introduce the C-4′ and C-5′ stereocentres.