Unusual chromenes from Peperomia blanda

Leosvaldo S M Velozo; Marcelo J P Ferreira; Maria Isabel S Santos; Davyson L Moreira; Vicente P Emerenciano; Maria Auxiliadora C Kaplan

doi:10.1016/j.phytochem.2005.12.012

Unusual chromenes from Peperomia blanda

Phytochemistry. 2006 Mar;67(5):492-6. doi: 10.1016/j.phytochem.2005.12.012. Epub 2006 Feb 3.

Authors

Leosvaldo S M Velozo¹, Marcelo J P Ferreira, Maria Isabel S Santos, Davyson L Moreira, Vicente P Emerenciano, Maria Auxiliadora C Kaplan

Affiliation

¹ Núcleo de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, 21941-590 Rio de Janeiro, Brazil.

PMID: 16458944
DOI: 10.1016/j.phytochem.2005.12.012

Abstract

From the methanol extract of the aerial parts of Peperomia blanda (Piperaceae), two chromenes were isolated and characterized mainly through application of 2D-NMR spectroscopy. The structures were 2S-(4-methyl-3-pentenyl)-6-formyl-8-hydroxy-2,7-dimethyl-2H-chromene and 2S-(4-methyl-3-pentenyl)-5-hydroxy-6-formyl-2,7-dimethyl-2H-chromene named as blandachromenes I and II, respectively.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Benzopyrans / chemistry*
Benzopyrans / isolation & purification
Circular Dichroism
Magnetic Resonance Spectroscopy
Methanol / chemistry
Peperomia / chemistry*
Plant Components, Aerial / chemistry
Solvents / chemistry

Substances

Benzopyrans
Solvents
blandachromene I
blandachromene II
Methanol