Studies on chemical constituents of Uvaria tonkinensis var. subglabra
Liu, A.; Xu, L.; Zou, Z.
Zhongguo Zhong Yao Za Zhi 34(5): 567-570
2009
ISSN/ISBN: 1001-5302 PMID: 19526784 Document Number: 632745
To isolate and identify chemical constituents of Uvaria tonkinensis var. subglabra. 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. 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). Compound 1 was the new natural product; compounds 2-7 were isolated for the first time from U. tonkinensis var. subglabra.