ISOLATING AND DETERMINING THE STRUCTURE OF SOME COMPOUNDS FROM C. ODORATA IN THANH HOA

Abstract

From the methanol extract of white orchid leaves collected in Thanh Hoa by chromatographic and spectral methods, the structure of 04 compounds has been determined: Stigmasterol; 6b-hydroxy-24-ethylcholesta-4-en-3-on; kaempferol 3-O-{bD-apiofuranosyl-(1→2)-[aL-rhamnopyranosyl-(1→6)-bD-glucopyranosite and 2, 3, 8-tri-methoxy ellagic acid, of which the compound kaempferol 3- O-{bD-apiofuranosyl-(1→2)-[aL-rhamnopyranosyl-(1→6)-bD-glucopyranosite was isolated from this plant for the first time.