Two new C-glycosylflavones from Mimosa pudica

Two new C-glycosylflavones were isolated from the whole plant of Mimosa pudica, and their structures were determined as 6,7,3′,4′-tetrahydroxyl-8-C-[α-l-rhamnopyranosyl-(1 → 2)]-β-d-glucopyranosyl flavone (1), 5,7,3′,4′-tetrahydroxy-8-C[β-d-apiose-(1 → 4)]-β-d-glycopyranosyl flavone (2). Their structures elucidated by chemical and spectroscopic analysis including IR, MS, 1D and 2D NMR spectra.