作者:Vachiraporn Satcharoen、Neville J. McLean、Stephen C. Kemp、Nicholas P. Camp、Richard C. D. Brown
DOI:10.1021/ol070255i
日期:2007.5.1
An enantioselective synthesis of (-)-galanthamine has been realized in 11 linear steps starting from isovanillin. A Mitsunobu aryl ether forming reaction was used to assemble the galanthamine backbone, which was stitched together using enyne ring-closing metathesis, Heck, and N-alkylation reactions affording the tetracyclic ring system. Control of relative and absolute stereochemistry was derived from