| Texto completo | |
| Autor(es): |
Rocha, Daniele F. O.
[1]
;
Hamilton, Kerry
[1]
;
Goncalves, Caroline C. S.
[1]
;
Machado, Glauco
[2]
;
Marsaioli, Anita J.
[1]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Univ Estadual Campinas, Inst Chem, BR-13083970 Campinas, SP - Brazil
[2] Univ Sao Paulo, Inst Biociencias, Dept Ecol, BR-05508090 Sao Paulo - Brazil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Journal of Natural Products; v. 74, n. 4, p. 658-663, APR 2011. |
| Citações Web of Science: | 16 |
| Resumo | |
The defensive, secretions, of five neotropical) species of harvestmen, (Opiliones: Gonyleptidae) from the Brazilian Atlantic Forest were analyzed and chemically characterized by GC-MS and NMR Methods. Three of the species, Cobania picea, Roweria virescens, and Serracutisoma proximum, secrete a mixture of 2,3-dimethyl-1,4-benzoquinone and 2-ethyl-3methyl-1,4,4-benzoquinone. The secretions produced,by the Other two species Iporangaia pustulosa and Neosadocus maximus, contain 1-hepten-3-one, 5-methyl-1-hexen-3-one, and 1-(6-butyl-3,4-dihydro-2H-pyran-2-yl)pentanone. (1)as major components, as well as,2,3-dimethyl-1.,4-benzoquinone and 2-ethyl-3 methyl-1,4-benzoquinone as minor,constituents. The. dihydropyran 1-(6-butyl-3,4-dihydro-2H-pyran-2-yl)pentanone (1) is a new natural product, composed of two 1-hepten-3-one, subunits formally linked in a hetero-Diels-Alder reaction. The natural product was proven to be racemic, and its biogenetic origin is discussed. (AU) | |
| Processo FAPESP: | 02/00381-0 - Investimento parental e evolução do comportamento sub-social em opiliões da família Gonyleptidae (Arachnida: Opiliones) |
| Beneficiário: | Glauco Machado |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |
| Processo FAPESP: | 08/06604-7 - Filogenia dos opiliões da família Gonyleptidae (Arachnida: Opiliones) baseada em caracteres morfológicos, moleculares e comportamentais |
| Beneficiário: | Ricardo Pinto da Rocha |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |