4-Hydroxycrebanine, a New 4-Hydroxyaporphine Alkaloid, and (R)-Roemeroline from Stephania sasakii HAYATA

Abstract

The structures of two unknown alkaloids (tentatively named Base A and Base D in a previous paper) from Stephania sasakii HAYATA (Menispermaceae) were established as 4-hydroxycrebanine (1), a new 4-hydroxyaporphine alkaloid, and (R)-roemeroline (3), respectively.