Studies on Constitutents of Evodia rutaecarpa (Rutaceae). I.Constituents of the Leaves

Abstract

A new glycoside, evodioside B (1) was isolated from the n-BuOH-soluble fraction of the MeOH extract of the leaves of Evodia rutaecarpa (JUSS). BENTH. (Rutaceae) together with rutin and hyperin. Epimedoside C (2), hyperin, and guaijaverin were isolated from the EtOAc-soluble fraction and dehydroevodiamine·hydrogenchloride (3) was isolated from the CHCl₃-soluble fraction as were limonin and β-sitosterol. The structure of compound 1 was determined to be 5, 7, 4'-trihydroxy-8-isopentenylflavanone 7, 4'-di-O-β-D-glucopyranoside on the basis of spectroscopic evidence, and the ¹H- and ¹³C-NMR signals of 2 and 3 were completely assigned.