Prenylated Coumarins, Chalcone and New Cinnamic Acid and Dihydrocinnamic Acid Derivatives from Brosimum gaudichaudii

Three new natural cinnamic acid and dihydrocinnamic acid derivatives were isolated from the roots of Brosimum gaudichaudii, in addition to fourteen known substances (ten coumarins, one chalcone, beta-sitosterol, 3beta-O-beta-D-glucopyranosylsitosterol and beta-amyrin). The structures were established by spectral data, including analysis of 2D-NMR experiments and mass spectra. All aromatic compounds have 4-hydroxy-3-prenylcinnamic acid as a common precursor. The new substances are derived from a precursor of the coumarins, which through an O-methylation lost its ability to form the lactone ring.

Bibliographic Details

Main Authors:	Monteiro,Verônica de F. F., Mathias,Leda, Vieira,Ivo J. C., Schripsema,Jan, Braz-Filho,Raimundo
Format:	Digital revista
Language:	English
Published:	Sociedade Brasileira de Química 2002
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532002000200023
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