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http://acervodigital.unesp.br/handle/11449/26068- Title:
- Structure and absolute configuration of a secolignan from Peperomia blanda
- Universidade Estadual Paulista (UNESP)
- Universidade Estadual de Maringá (UEM)
- Universidade de São Paulo (USP)
- 1874-3900
- Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
- Center for Scientific Computing (NCC/GridUNESP) of the São Paulo State University (UNESP)
- Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
- FAPESP: 03/11524-9
- 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.
- 1-Sep-2011
- Phytochemistry Letters. Amsterdam: Elsevier B.V., v. 4, n. 3, p. 245-249, 2011.
- 245-249
- Elsevier B.V.
- Peperomia blanda
- Piperaceae
- Secolignan
- Absolute configuration
- Electronic circular dichroism
- Density functional theory
- http://dx.doi.org/10.1016/j.phytol.2011.04.007
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/26068
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