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.
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Sociedade Brasileira de Química
2002
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oai:scielo:S0103-505320020002000232002-06-25Prenylated Coumarins, Chalcone and New Cinnamic Acid and Dihydrocinnamic Acid Derivatives from Brosimum gaudichaudiiMonteiro,Verônica de F. F.Mathias,LedaVieira,Ivo J. C.Schripsema,JanBraz-Filho,Raimundo Brosimum gaudichaudii Moraceae Coumarins Chalcone Cinnamic acid dihydrocinnamic acid derivatives 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.info:eu-repo/semantics/openAccessSociedade Brasileira de QuímicaJournal of the Brazilian Chemical Society v.13 n.2 20022002-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532002000200023en10.1590/S0103-50532002000200023 |
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Monteiro,Verônica de F. F. Mathias,Leda Vieira,Ivo J. C. Schripsema,Jan Braz-Filho,Raimundo |
spellingShingle |
Monteiro,Verônica de F. F. Mathias,Leda Vieira,Ivo J. C. Schripsema,Jan Braz-Filho,Raimundo Prenylated Coumarins, Chalcone and New Cinnamic Acid and Dihydrocinnamic Acid Derivatives from Brosimum gaudichaudii |
author_facet |
Monteiro,Verônica de F. F. Mathias,Leda Vieira,Ivo J. C. Schripsema,Jan Braz-Filho,Raimundo |
author_sort |
Monteiro,Verônica de F. F. |
title |
Prenylated Coumarins, Chalcone and New Cinnamic Acid and Dihydrocinnamic Acid Derivatives from Brosimum gaudichaudii |
title_short |
Prenylated Coumarins, Chalcone and New Cinnamic Acid and Dihydrocinnamic Acid Derivatives from Brosimum gaudichaudii |
title_full |
Prenylated Coumarins, Chalcone and New Cinnamic Acid and Dihydrocinnamic Acid Derivatives from Brosimum gaudichaudii |
title_fullStr |
Prenylated Coumarins, Chalcone and New Cinnamic Acid and Dihydrocinnamic Acid Derivatives from Brosimum gaudichaudii |
title_full_unstemmed |
Prenylated Coumarins, Chalcone and New Cinnamic Acid and Dihydrocinnamic Acid Derivatives from Brosimum gaudichaudii |
title_sort |
prenylated coumarins, chalcone and new cinnamic acid and dihydrocinnamic acid derivatives from brosimum gaudichaudii |
description |
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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Sociedade Brasileira de Química |
publishDate |
2002 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532002000200023 |
work_keys_str_mv |
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