Chemical Constituents Study on the Leaves of Mangifera indica L.

Abstract:

In order to understand the chemical constituents of Mangifera indica L., 13 compounds were isolated from 75% ethanol extract of mango leaves. On the basis of NMR and MS determination, they were identified as (-)-secoisolariciresinol-9′-O-β-D-glucopyranoside (1), 7S,8R-erythro-4,7,9-trihydroxy-3,3′-dimethoxy-8-O-4′-neolignan-9′-O-β-D-glucopyranoside (2), 7R,8R-threo-4,7,9-trihydroxy-3,3′-dimethoxy-8-O-4′-neolignan-9′-O-β-D-glucopyranoside (3), (7R/S,8R)-7,8-dihydro-9′-hydroxyl-3′-methoxyl-8-hydroxymethyl-7-(4-hydroxy-3-methoxyphenyl)-1′-enzofuranpropanol 9′-O-β-D-glucopyranoside (4), citrusin D (5), syringin (6), 2,6-dimethoxy-4-hydroxyphenyl-1-O-β-D-glucopyranoside (7), protocatechuic acid (8), gallic acid (9), methyl gallate (10), ethyl gallate (11), 4,5-dihydroxy-3-methoxy benzoic acid (12), and daucosterol (13). Among them, Compounds 1-7 and 12 were obtained from Mangifera genus for the first time.

Key words:Mangifera indica L.;Leaf;Chemical constituent;Lignans;Phenolic acid