New 1,3,5-trioxygenated xanthones in Canscora decussata |
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| Authors: | Shibnath Ghosal Rama Ballava PS Chauhan Kanika Biswas Ratan K Chaudhuri |
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| Institution: | Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutics, Banaras Hindu University, Varanasi-5, India |
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| Abstract: | Aerial parts of Canscora decussata have been shown to contain 1-methoxy-3,5-dihydroxyxanthone and its 3-O-rutinosyl derivative. The identity of these compounds was established by chemical transformation and spectral (UV, IR, PMR, MS) evidence of the compounds and their derivatives. This is the first demonstration of the occurrence of the two compounds in nature. |
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| Keywords: | Gentianaceae trioxygenated xanthone 1-methoxy-3 5-dihydroxyxanthone |
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