X-Ray Crystal Structure of Angulatusine A, a New Sesquiterpene Alkaloid from Celastrus angulatus

X-Ray Crystal Structure of Angulatusine A, a New Sesquiterpene Alkaloid from Celastrus angulatus Angulatueoids a-d, four sesquiterpenes from the seeds of celastrus angulatus Two sesquiterpenes from the seeds of Celastrus angulatus A sesquiterpene evoninoate alkaloid from the root bark of Celastrus angulatus Alkaloids from Celastrus angulatus Two sesquiterpene alkaloids from Celastrus angulatus Insect antifeeding agents: Sesquiterpene alkaloids from Celastrus angulatus Two new sesquiterpene pyridine alkaloids from root barks of Celastrus angulatus Three new insecticidal sesquiterpene pyridine alkaloids from<i>Celastrus angulatus</i> Alkaloids from Celastrus angulatus