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 I was further confirmed by single-crystal X-ray analysis. The absolute configuration of I was determined by modified Mosher's method.
CITATION STYLE
Lin, Y. L., Wang, W. Y., Kuo, Y. H., & Liu, Y. H. (2001). Homocyclotirucallane and two dihydrophenanthrenes from Spiranthes sinensis. Chemical and Pharmaceutical Bulletin, 49(9), 1098–1101. https://doi.org/10.1248/cpb.49.1098
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