Studies on chemical constituents of Uvaria tonkinensis var. subglabra / 中国中药杂志

ABSTRACT

<p><b>OBJECTIVE</b>To isolate and identify chemical constituents of Uvaria tonkinensis var. subglabra.</p><p><b>METHOD</b>The column chromatographic techniques were applied to isolate constituents, and their structures were elucidated by means of spectral data analysis including 1D and 2D NMR, IR and MS techniques.</p><p><b>RESULT</b>Seven compounds were isolated and identified as subglain C (1), beta-senepoxide (2) , 2, 4-dioxohexahydro-1, 3-diazepin (3), kaempferol-3, 7-di-O-alpha-L-rhamnoside (4), anolobine (5), (-)-lyoniresinol (6) and schizandriside (7).</p><p><b>CONCLUSION</b>Compound 1 was the new natural product; compounds 2-7 were isolated for the first time from U. tonkinensis var. subglabra.</p>