PHÂN LẬP VÀ XÁC ĐỊNH CẤU TRÚC MỘT SỐ HỢP CHẤT TỪ CÂY HOÀNG LAN HOA TRẮNG (C. ODORATA) Ở THANH HÓA VIỆT NAM
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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; 6-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.
Keywords: Cananga odorata (C. Odorata), kaempferol.