| Full text | |
| Author(s): |
Felippe, Lidiane G.
[1]
;
Batista, Jr., Joao M.
[1]
;
Baldoqui, Debora C.
[2]
;
Nascimento, Isabele R.
[1]
;
Kato, Massuo J.
[3]
;
Bolzani, Vanderlan S.
[1]
;
Furlan, Maysa
[1]
Total Authors: 7
|
| Affiliation: | [1] Univ Estadual Paulista UNESP, Inst Quim, BR-14800900 Araraquara, SP - Brazil
[2] Univ Estadual Maringa, Dept Quim, BR-87020900 Maringa, PR - Brazil
[3] Univ Sao Paulo, Inst Quim, BR-05599970 Sao Paulo - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | PHYTOCHEMISTRY LETTERS; v. 4, n. 3, p. 245-249, SEP 2011. |
| Web of Science Citations: | 13 |
| Abstract | |
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. (AU) | |