Total Synthesis of (±)-Cephalosol via Silyl Enol Ether Acylation
作者:Ulrich Koert、Alexander Arlt
DOI:10.1055/s-0029-1218647
日期:2010.3
(±)-cephalosol is reported. Key steps are the acylation of a silyl enol ether with monomethyl oxalyl chloride and the subsequent acid-mediated ring closure to the isocoumarin structure. A chemoselective allylation and the conversion of the olefin into a methyl acetate were applied to install the γ-lactone moiety. acylation - cephalosol - chemoselectivity - isocoumarins - lactones