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Molecules 2016, 21(2), 186; doi:10.3390/molecules21020186

Peltomexicanin, a Peltogynoid Quinone Methide from Peltogyne Mexicana Martínez Purple Heartwood

1
Department of Environmental Systems Engineering, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Av. Wilfrido Massieu S/N, Unidad Profesional Adolfo López Mateos, Gustavo A. Madero, México City CP 07738, Mexico
2
Department of Organic Chemistry, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala, S/N. Miguel Hidalgo, México City CP 11340, Mexico
3
Division of Science Forestry, Universidad Autónoma Chapingo, Carr. Mexico-Texcoco Km 38.5, Texcoco, México State CP 56230, Mexico
*
Author to whom correspondence should be addressed.
Academic Editor: Marcello Iriti
Received: 17 November 2015 / Revised: 15 January 2016 / Accepted: 28 January 2016 / Published: 4 February 2016
(This article belongs to the Section Natural Products)
View Full-Text   |   Download PDF [360 KB, uploaded 4 February 2016]   |  

Abstract

Peltomexicanin (7,10-dihydroxy-6,12-dioxa-5H-tetraphen-3-one) is a new peltogynoid quinone methide isolated from Palo Morado (Peltogyne mexicana Martínez) heartwood by column chromatography. Its chemical structure was elucidated by IR, NMR (1H, 13C), 2D NMR experiments (COSY, NOESY, HMQC, and HSQC), ESI-MS, and UV-Vis spectroscopic analysis. According to HPLC quantification, this compound is the main pigment and accounts for 1.21% of Palo Morado heartwood material. The antioxidant activity of peltomexicanin and dried methanolic extract (DEx) of purple heartwood was evaluated using the radical of 2,2’-azinobis-(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) assay, and the corresponding values expressed as Trolox equivalents (µmol TE/mg sample) were 4.25 and 4.57, respectively. View Full-Text
Keywords: Peltogyne mexicana Martínez; peltogynoids; quinone methide; purple heartwood; peltomexicanin Peltogyne mexicana Martínez; peltogynoids; quinone methide; purple heartwood; peltomexicanin
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Gutiérrez-Macías, P.; Peralta-Cruz, J.; Borja-de-la-Rosa, A.; Barragán-Huerta, B.E. Peltomexicanin, a Peltogynoid Quinone Methide from Peltogyne Mexicana Martínez Purple Heartwood. Molecules 2016, 21, 186.

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