[Studies on chemical constituents of Uvaria tonkinensis var. subglabra].
Märksõnad
Abstraktne
OBJECTIVE
To isolate and identify chemical constituents of Uvaria tonkinensis var. subglabra.
METHODS
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.
RESULTS
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).
CONCLUSIONS
Compound 1 was the new natural product; compounds 2-7 were isolated for the first time from U. tonkinensis var. subglabra.