A stereocontrolled enantiospecific route to tirandamycin B
Abstract
The enal 15 was synthesized in enantiomerically pure form starting from (S)-3-benzyloxy-2-methylpropanol 3 via highly regio- and stereo-selective methylation of the γ,δ-epoxy acrylate 5 with trimethylaluminium in the presence of water, developing an enantiospecific route to tirandamycin B.