Vanillic Acid 4-O-β-D-(6′-O-Galloyl) Glucopyranoside and Other Constituents from the Bark of Terminalia macroptera Guill. Et Perr

Abstract A new phenolic glucoside gallate, vanillic acid 4-O-β-D-(6′-O-galloyl) glucopyranoside (1) was isolated from the bark of Terminalia macroptera Guill.et Perr., together with 3,3′,4′-tri-O-methylellagic acid (2) and two triterpene glucopyranosyl esters, 24-deoxy-sericoside (3) and chebuloside II (4). Compounds 2-4 not described previously for this plant, showed antimicrobial activities against Bacillus subtilis, while 3 and 4 possessed haemolytic properties. In both assays 1 was found to be inactive.