Chiết xuất, phân lập một số flavonoid từ lá trứng cá (Muntingia calabum L., Muntingiaceae)

Abstract

Three flavonoids were isolated from the ethylacetate extracts of the leaves of Mungtingia calabura L.. They were structurally and identified as kaempferol (1), tiliroside (2) and kaempferol 3-0-(6”-O-galloyl)-β-D-glucopyranoside (3) by ESI-mass, ¹H-NMR, ¹³C-NMR, DEPT, HSQC and HMBC. Kaempferol 3-O-(6”-O-galloyl)-β-D-glucopyranoside (3) was isolated from Mungtingia calabura L. for the first time.