盘龙参中的两个新二氢菲类(英文)

Two New Dihydrophenanthrenes from Spiranthes sinensis (Pers.) Ames

采用硅胶和凝胶柱色谱,以及制备性薄层色谱等多种分离手段,从盘龙参全草中分离得到了2个新的9,10-二氢菲类化合物,运用NMR和MS等波谱技术分别鉴定为4-羟基-2-甲氧基-8-呋喃[4',5'∶7,8]-9,10-二氢菲(1),4-羟基-2-甲氧基-8-{2',2'-二甲基吡喃[5',6'∶7,8]}-9,10-二氢菲(2)。

A phytochemical study on Spiranthes sinensis led to the isolation of two new dihydrophenanthrenes derivatives,4-hydroxy-2-methoxy-8-furano [4′,5′∶ 7,8]-9,10-dihydrophenanthrene（1） and 4-hydroxy-2-methoxy-8-{2′,2′-dimethylpyrano [5′,6′∶ 7,8]}-9,10-dihydrophenanthrene（2）.Their structures were established by direct interpretation of their spectral data,mainly HRESIMS,1D（1H,13C NMR） and 2D NMR（HSQC and HMBC）.