Three new chromeno[3,2-c]pyridines (1-3) were isolated from the whole plants of Thalictrum scabrifolium. Their structures were elucidated by spectroscopic methods, including extensive 1H, 13C, and 2D-NMR techniques. Compounds 1-3 were also tested for their anti-rotavirus activity, and they exhibited potent anti-rotavirus activity with therapeutic index (TI) valves of 23.7, 18.3, and 19.2 respectively.

中文翻译：

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三款新型抗轮状病毒Chromeno[3,2-

三个新的色烯并[3,2- Ç ]吡啶（1 - 3 ）从全植物中分离唐松scabrifolium 。它们的结构通过光谱方法阐明，包括广泛的1 H、13 C 和 2D-​​NMR 技术。化合物1 - 3还测试了它们的抗轮状病毒活性，并且它们表现出与23.7治疗指数（TI）阀，18.3，和19.2分别有效的抗轮状病毒活性。