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Abstract
A pair of sesquiterpene glucosides, 3-hydroxysolavetivone-β-d-glucoside A (1) and 3-hydroxysolavetivone-β-d-glucoside B (2), have been isolated from the leaves of Nicotiana tabacum. The former is a new compound, while the latter is a known one. Their structures were established by spectroscopic methods including 1H, 13C, and 2D NMR. The relative configuration of C-3 in compound 2 was revised by NOESY experiment.
Acknowledgement
The research work was financially supported by the Cultivation Fund of the Key Scientific and Technical Innovation Project, Ministry of Education of China (707033).