A ring-B oxygenated phenanthrene derivative from the orchid Bulbophyllum gymnopus
作者:L. Majumder、Subhra Banerjee (neé Bhattacharyya)
DOI:10.1016/0031-9422(88)80624-1
日期:——
Abstract Gymnopusin, the first naturally occurring phenanthrene derivative having a hydroxyl group at C-9, was isolated from the orchid Bulbophyllum gymnopus . It was shown to be 7,9-dihydroxy-2,3,4-trimethoxyphenanthrene ( 1a ) mainly from the spectral data of the compound and those of its diacetyl ( 1b ) and dimethyl ether ( 1c ) derivatives.
摘要 Gymnopusin 是第一个在C-9 上具有羟基的天然菲衍生物,是从兰花Bulbophyllumgynopus 中分离得到的。主要从该化合物及其二乙酰基 (1b) 和二甲醚 (1c) 衍生物的光谱数据表明,它是 7,9-二羟基-2,3,4-三甲氧基菲 (1a)。