X-ray, 1H/13C 2D and 3D NMR Studies of the Structures of Davallene and Adipedatol, Two Triterpenes Isolated from American Adiantum capillus-veneris

Two triterpenic compounds, Davallene 1 and Adipedatol 2 were isolated from the roots of Mexican Adiantum capillus-veneris L. (Adiantaceae). The structures of both compounds are discussed on the basis of new 2D and 3D NMR spectroscopic and single crystal X-ray diffraction data.