- Jatrolactol, a new lignan from Jatropha Gossypifolia
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A new lignan, Jatrolactol has been isolated from the aerial parts of Jatropha gossypifolia. The structure of the compound was derived from its spectroscopic (1D and 2D NMR) data and chemical evidence.
- Das, Biswanath,Jangili, Paramesh,Srilatha, Malampati,Das, Ratna
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- LIGNANS, BIFLAVONES AND TAXOIDS FROM HIMALAYAN TAXUS BACCATA
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Chemical investigation of the twigs (separated from the needles) of the Himalayan yew, Taxus baccata, has culminated in the isolation of a new lignan, 4'-O-demethylsuchilactone, along with eight phenolic compounds, (-)-rhododendrol, (-)-rhododendrin, sciadopytisin, ginkgetin, kayaflavone, (-)-secoisolariciresinol, suchilactone and a lignan diol, not previously encountered in nature.Three taxoids, brevifoliol, 13-decinnamoyltaxchinin B and 10-deacetylbaccatin III were also isolated.This is the first report on the phytoconstituents isolated only fom the twigs of the Himalayan yew. - Key words: Taxus baccata; Taxaceae; twigs; phenolics; biflavones; lignans; taxoids; 4'-O-demethylsuchilactone.
- Das, B.,Rao, S. Padma,Srinivas, K. V. N. S.,Yadav, J. S.
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p. 715 - 718
(2007/10/02)
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- GADAIN, A LIGNAN FROM JATROPHA GOSSYPIFOLIA
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The isolation of a new lignan, gadain, from Jatropha gossypifolia is reported.The structure and stereochemistry of this compound have been determined from spectral analysis, partial synthesis from jatrophan (a lignan of known absolute configuration) and from its transformation reactions. - Key Word Index: Jatropha gossypifolia; Euphorbiaceae; lignan; gadain.
- Banerji, J.,Das, B.,Chatterjee, A.,Shoolery, J. N.
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p. 2323 - 2328
(2007/10/02)
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