A divergent approach to benzylisoquinoline-type and oxoaporphine alkaloids via regioselective direct ring metalation of alkoxy isoquinolines
作者:Benedikt Melzer、Franz Bracher
DOI:10.1039/c5ob00926j
日期:——
ols as building blocks for divergent syntheses of different types of benzylisoquinoline alkaloids. Photochemical cyclization of ortho-bromo analogues under reductive conditions gives oxoaporphinealkaloids. Nine benzylisoquinoline alkaloids and two oxoaporphinealkaloids were obtained in two or three steps from appropriate isoquinolines.