Diplomorphanins A and B: new C-methyl flavonoids from Diplomorpha canescens.

Two new C-methyl flavonoids, diplomorphanins A (1) and B (2) were isolated from the aerial parts of Diplomorpha canescens (MEISN.) C. A. MEYER along with a known compound, farrerol 7-O-β-D-glucopyranoside (3). Structures of these compounds were determined on the basis of spectroscopic data.