A new tropane alkaloid and other constituents of Erythroxylum rimosum (Erythroxylaceae)
| Autor: | Ribeiro, Erika M. de O., Lima, Luciano S., David, Jorge Mauricio, Vale, Ademir Evangelista do, Lopes, Lucia M. Xavier, David, Juceni Pereira de Lima |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Repositório Institucional da UFBA Universidade Federal da Bahia (UFBA) instacron:UFBA |
| DOI: | 10.1016/j.phytol.2013.02.008 |
| Popis: | Texto completo: acesso restrito. p. 232–235 Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2014-11-24T13:38:48Z No. of bitstreams: 1 Erika M. de O. Ribeiro.pdf: 389823 bytes, checksum: 19bb1c79d3ca89eca1416f9f917ac5f2 (MD5) Made available in DSpace on 2014-11-24T13:38:48Z (GMT). No. of bitstreams: 1 Erika M. de O. Ribeiro.pdf: 389823 bytes, checksum: 19bb1c79d3ca89eca1416f9f917ac5f2 (MD5) Previous issue date: 2013 A new tropane alkaloid, named the 7β-acetoxy-3β,6β-dibenzoyloxytropane (1), was isolated from a methanol extract of Erythroxylum rimosum O.E. Schulz leaves. Other known compounds were detected, including quercetin, kaempferol-3-O-α-l-arabinofuranoside, (+)-catechin, epicatechin, quercetin-3-O-α-arabinofuranoside, quercetin-3-O-α-arabinopyranoside, quercetin-3-O-β-arabinopyranoside, quercetin-3-β-glucopyranoside, kaempferol, quercetin-3-O-β-galactopyranoside, β-sitosterol, α-amyrin, β-amyrin, and the ester derivatives of these two amyrins. Compound 1 exhibited weak inhibition of acetylcholinesterase. Structural identification was performed using IR, ESIHRMS and one- and two-dimensional NMR data analyses and confirmed by comparison with literature data. |
| Databáze: | OpenAIRE |
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