Abstract
Two new C-glycosylflavones, named 5,7,3′,4′-tetrahydroxy-6-methoxy-8-C-β-D-gluco-pyranosyl flavonoside (1), 5,3′,4′-trihydroxy-6,7-dimethoxy-8-C-[β-D-apiofuranosyl-(1 → 2)]-β-D-glucopyranosyl flavonoside (2), together with nine known compounds (3–11), were isolated from 50% acetone extract of Boea hygrometrica (Bunge.) R.Br. Their structures were established by spectroscopic techniques including MS, IR, UV, and 2D NMR.
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