Structure of ursinoic acid and ursinin |
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Authors: | G. K. Nikonov and M. R. Yagudaev |
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Affiliation: | (1) Institute of the Chemistry of Plant Substances, AS UzSSR, USSR |
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Abstract: | Conclusions On the basis of UV, IR, and NMR spectroscopy, and the preparation of derivatives, the most probable structures of ursinoic acid and ursinin, aromatic oxo acids isolated previously from the roots ofAngelica ursina Rupr. et Schmalh., have been established. It has been shown that the former has the structure 2,2-dimethylpyrano-5, 6:5, 6-(2, 4-dimethoxy)benzoylacetic acid while the second is 2,2-dimethylpyrano-5,6:5, 6-(2-methoxy)benzoylacetic acid.Khimiya Prirodnykh Soedinenii, Vol. 6, No. 4, pp. 421–424, 1970 |
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