Indole alkaloid and other constituents from ocotea minarum
| Autor: | Walmir Silva Garcez, Angela A. Shimabukuro, Lillian May G. E. da Silva, Fernanda Rodrigues Garcez |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Stigmasterol
biology Indole alkaloid Stereochemistry Lauraceae Ocotea minarum General Chemistry indole alkaloid Sesquiterpene biology.organism_classification Coumarin lcsh:Chemistry chemistry.chemical_compound chemistry lcsh:QD1-999 visual_art Scopoletin lanceolic acid visual_art.visual_art_medium Taxifolin Organic chemistry Bark alkyl-phenols |
| Zdroj: | Journal of the Brazilian Chemical Society, Volume: 17, Issue: 2, Pages: 426-427, Published: APR 2006 Journal of the Brazilian Chemical Society, Vol 17, Iss 2, Pp 426-427 (2006) Journal of the Brazilian Chemical Society v.16 n.6b 2005 Journal of the Brazilian Chemical Society Sociedade Brasileira de Química (SBQ) instacron:SBQ Journal of the Brazilian Chemical Society, Volume: 16, Issue: 6b, Pages: 1382-1386, Published: NOV 2005 Journal of the Brazilian Chemical Society v.17 n.2 2006 |
| ISSN: | 0103-5053 |
| DOI: | 10.1590/s0103-50532006000200031 |
| Popis: | From the fruits of Ocotea minarum a new indole alkaloid, tryptophol-5-O-beta-D-glucopyranoside, was isolated in addition to the coumarin scopoletin and the flavonoids taxifolin, quercetin-7-O-beta-D-glucopyranoside, eriodictyol-3'-O-beta-D-glucopyranoside and naringenin-7-O-beta-D-glucopyranoside. A new alkyl phenol, 3-(1,4-dihydroxypentyl)-5-methoxyphenol, was obtained from the heartwood in addition to 5-propylresorcinol, trans-asarone, lyonyresinol, 3-O-beta-D-glucopyranosyl stigmasterol and stigmasta-4,22-dien-3-one, whereas from the trunk bark the sesquiterpene lanceolic acid (as its methyl ester derivative after methylation procedures) and beta-sitosterol were isolated. 5-propylresorcinol and lanceolic acid are reported for the first time as natural products. Dos frutos de Ocotea minarum foram isolados um novo alcalóide indólico, triptofol-5-O-beta-D-glicopiranosídeo, a cumarina escopoletina e os flavonóides taxifolina, quercetina-7-O-beta-D-glicopiranosídeo, eriodictiol-3'-O-beta-D-glicopiranosídeo e naringenina-7-O-beta-D-glicopiranosídeo. Do cerne foi isolado um novo alquil fenol, 3-(1,4-diidroxipentil)-5-metoxifenol, além de 5-propilresorcinol, trans-asarona, lioniresinol, 3-O-beta-D-glicopiranosil estigmasterol e estigmasta-4,22-dien-3-ona. Da casca do caule foram obtidos o sesquiterpeno ácido lanceólico (como seu derivado éster metílico após metilação com diazometano) e beta-sitosterol. O ácido lanceólico e 5-propilresorcinol estão sendo relatados pela primeira vez como produtos naturais. |
| Databáze: | OpenAIRE |
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