Photocyclisation of enamido-ketones. Novel synthesis of lycorine-type alkaloids
Abstract
Photocyclisation of 2,3,4,5-tetrahydro-N-(3,4-methylenedioxybenzoyl)indol-6(3aH)-one followed by stereoselective reduction with LiAlH4 provides a simple and new synthetic route to lycorine-type alkaloids.