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

Author: Monteiro, Verônica de F.F.; Mathias, Leda; Vieira, Ivo J.C.; Schripsema, Jan; Braz-Filho, Raimundo
Edition/Format: Internet resource : English
Publication:Journal of the Brazilian Chemical Society, 2002
Summary:
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  Read more...
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Details

Genre/Form: Journal article.
Material Type: Internet resource
Document Type: Internet Resource, Article
All Authors / Contributors: Monteiro, Verônica de F.F.; Mathias, Leda; Vieira, Ivo J.C.; Schripsema, Jan; Braz-Filho, Raimundo
ISSN:0103-5053
OCLC Number: 57078176

Abstract:

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.

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