A new natural azulene-type pigment from Oreocnide frutescens |
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| Authors: | Changhao Zhang Hong Liang Guangzhong Tu Yuying Zhao |
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| Institution: | 1. State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, PR China;2. Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, PR China;3. Beijing Institute of Microchemistry, Beijing 100091, PR China |
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| Abstract: | A new natural red-purple azulene-type pigment, 1,1,6-trimethylazuleno1,8-cd]pyran-3(1H)-one, named oreolactone (1), together with nine known compounds, scopoletin (2), pomolic acid (3), friedelin (4), 3β-friedelinol (5), 3α-friedelinol (6), stigmast-4-en-3-one (7), stigmast-4, 22-dien-3-one (8), β-sitosterol (9), and daucosterol (10), was isolated from the rhizomes of Oreocnide frutescens. The structures were elucidated on the basis of spectroscopic analysis. |
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| Keywords: | Oreocnide frutescens Azulene-type pigment Oreolactone Spectroscopic methods |
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