密花石豆兰中水溶性酚酸类成分研究

Water-soluble phenolic glycosides from the whole plant of Bulbophyllum odoratissimum

摘要: 目的对密花石豆兰中的水溶性酚酸类成分进行研究。方法采用大孔树脂HP20，Sephadex LH-20和ODS等多种柱色谱方法进行分离，利用化合物的理化常数并结合波谱解析鉴定化合物的结构。结果从密花石豆兰的水溶性成分中共分离得到4个化合物，分别鉴定为3-羟基-苯乙醇-4-O-(6′-O-β-芹呋喃糖基)-β-D-葡吡喃糖苷(1)，3-甲氧基-苯乙醇-4-O-β-D-葡吡喃糖苷(2)，3,5-二甲氧基苯乙醇-4-O-β-D-葡吡喃糖苷(3)，syringin (4)。结论化合物1为新化合物，命名为bulbophyllinoside。

Abstract: AimTo investigate the water-soluble phenolic glycosides from the whole plant of Bulbophyllum odoratissimum. MethodsColumn chromatography techniques were used to isolate the chemical constituents, physico-chemical constants and spectroscopic analysis were employed for structural elucidation. ResultsBulbophyllinoside (1), a new phenolic glycoside and three known compounds were isolated from the whole plant of Bulbophyllum odoratissimum Lindl. Their structures were determined as 3-hydroxyphenethyl alcohol 4-O-(6′-O-β-apiofuranosyl)-β-D-glucopyranoside (1), 3-methoxyphenethyl alcohol 4-O-βD-glucopynanoside (2), 3,5-dimethoxyphenethyl alcohol 4-O-β-D-glucopynanoside (3) and syringin (4). ConclusionBulbophyllinoside (1) is a new compound.