Rhaposerine and rhaserolide, new sesquiterpene lactones fromRhaponticum serratuloides |
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| Authors: | A. G. Berdin S. M. Adekenov V. A. Raldugin M. M. Shakirov A. G. Druganov A. T. Kulyyasov G. A. Tolstikov |
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| Affiliation: | (1) Institute of Phytochemistry, Ministry of Sciences, Academy of Sciences of Kazakhstan, 19 ul. Erzhanova, 470032 Karaganda, Kazakhstan;(2) N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 9 prosp. Akad. Lavrent'eva, 630090 Novosibirsk, Russian Federation |
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| Abstract: | Two new crystalline guaianolides,viz., rhaposerine and rhaserolide, were isolated from an ethanolic extract of the above-ground part of the plantRhaponticum serratuloides by column chromatography along with sesquiterpene lactones,viz., centaurepensin and acroptilin, which have been found in other plants. The chemical structures of the title lactones were established by1H and13C NMR spectroscopy and 2D1H−1H (COSY) and13C−1H (COSY and COLOC) NMR spectroscopy. Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 2010–2014, October, 1999. |
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| Keywords: | sesquiterpenoids guaianolides cynaropicrin rhaposerine rhaserolide acroptilin centaurepensin 2D NMR spectroscopy HPLC |
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