Sesquiterpene lactones from Tithonia rotundifolia |
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| Authors: | Ana L.C. Pérez Micaela V. del C. Colin R. Carlos Guerrero Ma.R. de la Luz Cruz Alfonso Romo de Vivar R |
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| Affiliation: | Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán 04510, México, D.F. |
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| Abstract: | A chemical investigation of Tithonia rotundifolia afforded seven new sesquiterpene lactones in addition to three known ones. The structures of the new compounds 3-acetyl-15-hydroxyleptocarpin, 15-hydroxyleptocarpin and tirotundifolins A, B, C, D and E were established by spectroscopic and chemical means. |
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| Keywords: | Compositae Heliantheae sesquiterpene lactones heliangolides eudes-manolides 15-hydroxyleptocarpins tirotundifolins. |
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