New Compounds from the Roots of Corsican (Poir.) Link.: Two Pterocarpans and a Dihydrobenzofuran.

Three new compounds, a dihydrobenzofuran (coumaran) derivative (compound ) and two pterocarpans (compounds and ) were isolated from a root extract of growing wild in Corsica. Their structures were elucidated using 1D and 2D NMR spectroscopy and MS/MS as 2-(1-methylethenyl)-5-hydroxy-6-carbomethoxy-2,3-dihydro-benzofuran, 4,9-dihydroxy-3-methoxy-2-dimethylallylpterocarpan, and 4,9-dihydroxy-3',3'-dimethyl-2,3-pyranopterocarpan.

Identification and Quantitation of Ursolic and Oleanolic Acids in L. Leaf Extracts Using C and H-NMR Spectroscopy.

Leaves of L. have been used for their therapeutic properties. In previous studies, components contained in the leaves were first isolated by various chromatographic techniques.