DOI: 10.1002/vjch.202000004 ISSN: 2572-8288

Chemical study of the stem bark of Phyllanthus emblica (Phyllanthaceae)

Phan Thanh Khoa, Pham Bao Quy, Do Thi My Lien, Nguyen Kim Phi Phung, Nguyen Thi Anh Tuyet
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From the ethyl acetate extract of the stem bark of Phyllanthus emblica, a mixture of triterpene glycosides (1) and six compounds (2‐7) were isolated. The structure of these compounds were established as 3‐O‐α‐L‐arabinopyranosyloleanolic acid (1a), 3‐O‐α‐L‐arabinopyranosylursolic acid (1b), 16‐dehydropregnenolone (2), periplogenin (3), betulin (4), phyllanthol (5), gallic acid (6) and methyl gallate (7) by 1D, 2D NMR spectroscopies, and high resolution ESI‐MS analysis, as well as comparison with those reported in the literature. The compounds (1a), (1b), (2) and (3) were found for the first time from this genus.

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