M. C. Nascimento, Ricardo Luiz de Vasconcellos Dias, W. B. Mors
1976
Citations
2
Influential Citations
34
Citations
Journal
Phytochemistry
Abstract
Abstract Heptacosanol and sitosterol, one chalcone, one flavone, one 3- O -methyl-flavonol, four aurones and two 3- O -methylauronols were isolated from the root bark of Derris obtusa . The latter compounds, called Derriobtusones A and B, are the first auronols found in nature. Structures were established through chemical and spectral means. Mass spectral fragmentation schemes are suggested for aurones and auronols.