Four New Compounds from Sinacalia tangutica |
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| Authors: | Ying Zhu Yan Zhao Guo‐Du Huang Wang‐Suo Wu |
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| Affiliation: | 1. State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.?R. China, (phone: +86‐931‐3698769;2. fax: +86‐931‐8912582);3. Radiochemistry Laboratory, Lanzhou University, Lanzhou 730000, P.?R. China |
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| Abstract: | Four new compounds, 9α‐hydroxy‐1β‐methoxycaryolanol ( 1 ), stigmast‐5‐ene‐7α,22α‐diol‐3β‐tetradecanoate ( 2 ), 7‐O‐(6′‐acetoxy‐β‐D ‐glucopyranosyl)coumarin ( 3 ), and 8‐O‐(6′‐acetoxy‐β‐D ‐glucopyranosyl)‐7‐hydroxycoumarin ( 4 ), together with ten known compounds, were isolated from the aerial parts of Sinacalia tangutica. The structures of the new compounds were established by means of extensive spectroscopic analyses (1D‐ and 2D‐NMR, EI‐MS, HR‐ESI‐MS, as well as IR and UV) and by comparison of their spectroscopic data with those of structurally related compounds reported in the literature. |
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| Keywords: | Sinacalia tangutica Coumarins Steroids Caryolane sesquiterpenes Sesquiterpenes |
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