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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/75231
Title: 
A new tropane alkaloid and other constituents of Erythroxylum rimosum (Erythroxylaceae)
Author(s): 
Institution: 
  • Universidade Federal da Bahia (UFBA)
  • Instituto Federal da Bahia
  • Universidade Estadual Paulista (UNESP)
ISSN: 
  • 1874-3900
  • 1876-7486
Abstract: 
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. © 2013 Phytochemical Society of Europe.
Issue Date: 
1-May-2013
Citation: 
Phytochemistry Letters, v. 6, n. 2, p. 232-235, 2013.
Time Duration: 
232-235
Keywords: 
  • Acetylcholinesterase inhibition
  • Erythroxylaceae
  • Erythroxylum rimosum
  • Flavonoids
  • Triterpenes
  • Tropane alkaloid
  • 7beta acetoxy 3beta,6beta dibenzoyloxytropane
  • acetylcholinesterase
  • alpha amyrin
  • beta amyrin
  • catechin
  • epicatechin
  • Erythroxylum rimosum extract
  • ester derivative
  • glucopyranoside
  • kaempferol
  • kaempferol 3 O alpha levo arabinofuranoside
  • kaempferol derivative
  • methanol
  • plant extract
  • quercetin 3 beta glucopyranoside
  • quercetin 3 O alpha arabinofuranoside
  • quercetin 3 O alpha arabinopyranoside
  • quercetin 3 O beta galactopyranoside
  • quercetin derivative
  • sitosterol
  • tropane alkaloid
  • unclassified drug
  • cholinesterase inhibition
  • controlled study
  • drug structure
  • electrospray mass spectrometry
  • enzyme inhibition
  • heteronuclear multiple bond correlation
  • infrared radiation
  • nuclear magnetic resonance
  • plant leaf
  • priority journal
  • proton nuclear magnetic resonance
  • Erythroxylum
Source: 
http://dx.doi.org/10.1016/j.phytol.2013.02.008
URI: 
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/75231
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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