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Title
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New furanoditerpenoids from **Croton jatrophoides**
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Author
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Abstract
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| Four furanoditerpenoids were isolated from roots of Croton jatrophoides (Euphorbiaceae) collected in Tanzania. In addition to the known compounds penduliflaworosin and teucvin (mallotucin A), a new teucvin isomer, which was named isoteucvin, and a furanoditerpenoid with a new skeleton, for which the name jatrophoidin was adopted, were isolated. Their structures were elucidated by spectroscopic methods such as ESI-MS and NMR, including H-1-, C-13-, and two-dimensional NMR. The crystal structures of isoteucvin and jatrophoidin were solved using single-crystal X-ray diffraction, by which we also established the absolute configuration of jatrophoidin. The refined crystal structure of isoteucvin has the same (absolute) configuration as jatrophoidin, although the X-ray diffraction data of isoteucvin were not conclusive with respect to the absolute configuration. |
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Language
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English
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Source (journal)
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Planta medica: natural products and medicinal plant research. - Stuttgart
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Publication
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Stuttgart
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2009
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ISSN
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0032-0943
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DOI
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10.1055/S-0028-1088383
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Volume/pages
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75
:3
(2009)
, p. 262-267
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ISI
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000264061000012
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Full text (Publisher's DOI)
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