Benzopyran derivatives from Werneria nubigena

Sonia Piacente, Nora Herrera Hernandez, Francesco De Simone, Olga Lock de Ugaz, Cosimo Pizza

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Abstract

Investigation of the aerial parts of Werneria nubigena afforded, in addition to pyrrolizidine alkaloids, p-hydroxyacetophenone and quinic acid derivatives, the rare, 2,2-dimethyl-6-acetyl-8-(3'-hydroxy-3'-methyl-trans- but-1'-enyl)-chrom-3'-ene, and the new, 2,2-dimethyl-6-acetyl-8-(3'-hydroxy- 3'-methyl-trans-but-1'-enyl)-chroman-4-one. Structures were elucidated by spectroscopic methods. The chemotaxonomic implications are discussed briefly.
Original languageSpanish
Pages (from-to)795-797
Number of pages3
JournalPhytochemistry
Volume46
StatePublished - 1 Oct 1997
Externally publishedYes

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