ChemInform Abstract: Benzopyran Derivatives from Werneria nubigena.

Abstract

Benzopyran Derivatives from Werneria nubigena.-The structures of new chromanone (I) and rare chromene (II), both isolated from the aerial parts of title species together with p-hydroxyacetophenone and quinic acid derivatives and pyrrolizidine alkaloids, are elucidated by spectroscopic methods. -(PIACENTE, S.; HERNANDEZ, N. H.; DE SIMONE, F.; LOCK DE UGAZ, O.; PIZZA, C.; Phytochemistry 46 (1997) 4, 795-797; Fac. Farm., Univ. Studi Salerno, I-84084 Penta, Salerno, Italy; EN)