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|Title:||The 2-pyrones of Aniba species|
|Authors:||Rezende, C. M. Andrade da Mata|
von Bülow, Maria Vittória
Gottlieb, Otto Richard
Pinho, Sonildes Lamêgo Vieira
Rocha, Arnaldo Imbiriba da
|metadata.dc.relation.ispartof:||Volume 10, Número 12, Pags. 3167-3172|
|Abstract:||A re-examination of the trunk wood of Aniba parviflora (Meissn.) Mez (Lauraceae) yielded two new constituents, 6-(4′-hydroxy-trans-styryl)-2-pyrone (IVf) and 6-(3′,4′-dihydroxy-trans-styryl-2-pyrone (IVe). 6-Cis-styryl-2-pyrone (Va) was also isolated. This, however, is considered to be an artifact, since the wood of other Aniba species, such as A. canelilla (H.B.K.) Mez, A. permollis (Nees) Mez and A. gardneri (Meissn.) Mez, contain only 6-trans-styryl-4-methoxy-2-pyrones (II), besides 6-aryl-4-methoxy-2-pyrones (I). In the leaves of A. gardneri, however, such compounds are accompanied by their photo-transformation products 6-cis-styryl-4-methoxy-2-pyrone (Vb), aniba-dimer-A (VIIb) and aniba-dimer-B (VIIc). © 1971.|
|Appears in Collections:||Artigos|
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