Homocyclotirucallane and two dihydrophenanthrenes from Spiranthes sinensis.
نویسندگان
چکیده
A novel homocyclotirucallane, sinetirucallol (1), and two additional new dihydrophenanthrenes, sinensols G (2) and H (3), were isolated from the aerial parts of Spiranthes sinensis (Pers.) Ames. Their structures were determined by various spectral analyses, including MS and two-dimentional nuclear magnetic resonance techniques. The structure of compound 1 was further confirmed by single-crystal X-ray analysis. The absolute configuration of 1 was determined by modified Mosher's method.
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عنوان ژورنال:
- Chemical & pharmaceutical bulletin
دوره 49 9 شماره
صفحات -
تاریخ انتشار 2001