Two new triterpenoids from Psidium guajava

Two new triterpenoids, named as 2α,3β,23-trihydroxylurs-12,20(30)-dien-28-oic acid β-d-glucopyranoside (1), and 2α,3β,6β,20β,23,30-hexahydroxyurs-12-en-28-oic acid (2), together with four known triterpenoids were isolated from the leaves of Psidium guajava L. Their structures were elucidated on the basis of mass and spectral evidence.