Structure and absolute configuration of a secolignan from Peperomia blanda
| Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
|---|---|
| Data(s) |
20/05/2014
20/05/2014
01/09/2011
|
| Resumo |
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Processo FAPESP: 03/11524-9 Processo FAPESP: 05/57042-0 A secolignan, (-)-2-methyl-3-[bis(3 ',4 '-methylenedioxy-5 '-methoxyphenyl) methyl] butyrolactone (1), with a rare cis configuration was isolated from the aerial parts of Peperomia blanda (Piperaceae). The structure of this compound was elucidated by a combination of spectroscopic methods, including ultraviolet, infrared, 1D- and 2D- nuclear magnetic resonance as well as high resolution mass spectrometry data. The absolute configuration of (-)-1 was determined as (2R,3S) by the comparison of experimental electronic circular dichroism (ECD) spectroscopy and time-dependent density functional theory (TDDFT) calculations. (C) 2011 Phytochemical Society of Europe. Published by Elsevier B.V. All rights reserved. |
| Formato |
245-249 |
| Identificador |
http://dx.doi.org/10.1016/j.phytol.2011.04.007 Phytochemistry Letters. Amsterdam: Elsevier B.V., v. 4, n. 3, p. 245-249, 2011. 1874-3900 http://hdl.handle.net/11449/26068 10.1016/j.phytol.2011.04.007 WOS:000296534500009 |
| Idioma(s) |
eng |
| Publicador |
Elsevier B.V. |
| Relação |
Phytochemistry Letters |
| Direitos |
closedAccess |
| Palavras-Chave | #Peperomia blanda #Piperaceae #Secolignan #Absolute configuration #Electronic circular dichroism #Density functional theory |
| Tipo |
info:eu-repo/semantics/article |
