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Two new C-glucoside flavonoids, namely 8-C-b-D-(2-O-acetyl) glucofuranosyl apigenin and 3-O-acetylvitexin, were isolated from leaves of Crataegus pinnatifida Bge. var. major N. E. Br.. Their structures were elucidated by the spectroscopic means and chemical evidence.
Two new C-glucoside flavonoids, namely 8-CbD- (2-O-acetyl) glucofuranosyl apigenin and 3-O-acetylvitexin, were isolated from leaves of Crataegus pinnatifida Bge. Var. Major NE Br .. Their structures were elucidated by the spectroscopic means and chemical evidence.