Chemical constituents from the roots of Leea thorelii Gagnep.

Phytochemical investigation of the roots of Leea thorelii led to the isolation of nine compounds. Their structures were determined from spectroscopic data as bergenin (1), 11-O-acetyl bergenin (2), 11-O-(4′-O-methylgalloyl) bergenin (3), 3,5-dihydroxy-4-methoxybenzoic acid (4), ( − )-epicatechin (5), 4″-O-methyl-( − )-epicatechin gallate (6), ( − )-epicatechin gallate (7), microminutinin (8) and stigmasterol. Compounds 18 are reported for the first time from this plant, and this is also the first report of the presence of 1, 3, 4, 6 and 8 in the Vitaceae family.

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