Title
Chromenes of polyketide origin from Peperomia villipetiola
Date Issued
01 January 2005
Access level
metadata only access
Resource Type
journal article
Author(s)
Publisher(s)
Elsevier Ltd
Abstract
An extract of leaves and stems of Peperomia villipetiola has been found to contain myristicin (3-methoxy-4,5-methylenedioxy-allylbenzene) and seven chromenes, whose structures are methyl 5-hydroxy-7-methyl-2,2-dimethyl-2H-1- chromene-6-carboxylate (1), methyl 5-methoxy-7-methyl-2,2-dimethyl-2H-1- chromene-8-carboxylate (2), methyl 7-hydroxy-5-methyl-2,2-dimethyl-2H-1- chromene-6-carboxylate (3), methyl 7-methoxy-5-methyl-2,2-dimethyl-2H-1- chromene-6-carboxylate (4), 5-methanol-7-hydroxy-2,2-dimethyl-2H-1-chromene-6- carboxylic acid (5), 5-methanol-7-methoxy-2,2-dimethyl-2H-1-chromene-6- carboxylic acid (6), and methyl 5-acetoxymethanol-7-hydroxy-2,2-dimethyl-2H-1- chromene-6-carboxylate (7). A biosynthetic rationale for 1-7 suggests that orsellinic acid may be a common intermediate. The anti-fungal activities of the chromenes were measured bioautographically against Cladosporium cladosporioides and Cladosporium sphaerospermum: compounds 6 and 7 were found to be the most active. © 2005 Elsevier Ltd. All rights reserved.
Start page
573
End page
579
Volume
66
Issue
5
Language
English
OCDE Knowledge area
Otras ciencias médicas
Subjects
Scopus EID
2-s2.0-13844266460
PubMed ID
Source
Phytochemistry
ISSN of the container
00319422
Sponsor(s)
The work was funded by grants from CNPq. The authors thank Ms. Consuelo Rojas Idrogo (Universidad Pedro Ruiz Gallo, Lambayeque, Peru) for collecting the plant material and Santos Llatas Quiroz for the botanical identification.
Sources of information:
Directorio de Producción Científica
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