Total Syntheses of the <i>Securinega</i> Alkaloids (+)-14,15-Dihydronorsecurinine, (−)-Norsecurinine, and Phyllanthine
作者:Gyoonhee Han、Matthew G. LaPorte、James J. Folmer、Kim M. Werner、Steven M. Weinreb
DOI:10.1021/jo000260z
日期:2000.10.1
diene, affording adduct 35. Conjugate reduction and stereoselective equatorial ketonereduction of vinylogous amide 35 provided tricyclic intermediate 36, which could then be elaborated in a few steps to stable hydroxyenone 53 via alpha-selenophenylenone intermediate 52. The D-ring was then constructed, again using an intramolecular Wadsworth-Horner-Emmons olefination reaction to give phyllanthine (2)