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Chemical study of the stem bark of Phyllanthus emblica (Phyllanthaceae)
Author(s) -
Khoa Phan Thanh,
Quy Pham Bao,
Lien Do Thi My,
Phung Nguyen Kim Phi,
Tuyet Nguyen Thi Anh
Publication year - 2020
Publication title -
vietnam journal of chemistry
Language(s) - English
Resource type - Journals
eISSN - 2572-8288
pISSN - 0866-7144
DOI - 10.1002/vjch.202000004
Subject(s) - phyllanthus emblica , phyllanthus , traditional medicine , bark (sound) , biology , medicine , ecology
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.