Coumarinolignans from the Seeds ofAnnona squamosaLinn.

摘要

Phytochemical investigations ofAnnona squamosaseeds have led to the isolation of three lignans consisting of coumarin moiety, cleomiscosin A (1), cleomiscosin B (2) and cleomiscosin C (3). Their structures were arrived at by detailed spectroscopic analysis. Cleomiscosin A and cleomiscosin B are position isomer.