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Constituents of Aegle marmelos from Myanmar
Hnin Thanda Aung1, Thu Zar1, Myint Myint Sein1
1Department of Chemistry, University of Mandalay, Mahaaungmyae Township, Mandalay 05032, Myanmar.
Abstract:
Five compounds (1-5), including three coumarins (1-3) and two alkaloids (4,5) were isolated during the first investigation of the stem bark of Aegle marmelos (L.) Corrêa. collected in Myanmar. Their structures were determined by NMR spectra analysis. Among them, 7´-O-ethylmarmin (1) and 2-O-ethyltembamide (5) were identified as new compounds. Skimmianine (4) showed moderate cytotoxicity against a HeLa cell line, and 7´-O-ethylmarmin (1), marmin (2), and (+)-epoxyaurapten (3) displayed weak radical scavenging activity according to a DPPH scavenging assay.
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