Isolation, Structure Elucidation, and Chemical Derivatization of a New Cyclic Bisbibenzyl Dimer, Pusilatin E, from the Liverwort Riccardia multifida subsp. decrescens

A new cyclic bisbibenzyl dimer (1) has been isolated from the MeOH extract of the liverwort Riccardia multifida subsp. decrescens, together with two previously known bisbibenzyls [riccardin A (2) and marchantin I (3)] and a norneolignan [egonol 2-methylbutanoate (4)]. Extensive 1H- and 13C-NMR spect...

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Published inJournal of natural products (Washington, D.C.) Vol. 60; no. 2; pp. 145 - 147
Main Authors Yoshida, Tatsuhiko, Toyota, Masao, Asakawa, Yoshinori
Format Journal Article
LanguageEnglish
Published WASHINGTON American Chemical Society 01.02.1997
Amer Chemical Soc
American Society of Pharmacognosy
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Abstract A new cyclic bisbibenzyl dimer (1) has been isolated from the MeOH extract of the liverwort Riccardia multifida subsp. decrescens, together with two previously known bisbibenzyls [riccardin A (2) and marchantin I (3)] and a norneolignan [egonol 2-methylbutanoate (4)]. Extensive 1H- and 13C-NMR spectral measurements and chemical derivatization allowed the structure of dimeric riccardin A to be defined; it has been named pusilatin E (1).
AbstractList A new cyclic bisbibenzyl dimer (1) has been isolated from the MeOH extract of the liverwort Riccardia multifida subsp. decrescens, together with two previously known bisbibenzyls [riccardin A (2) and marchantin I (3)] and a norneolignan [egonol 2-methylbutanoate (4)]. Extensive 1H- and 13C-NMR spectral measurements and chemical derivatization allowed the structure of dimeric riccardin A to be defined; it has been named pusilatin E (1).
A new cyclic bisbibenzyl dimer (1) has been isolated from the MeOH extract of the liverwort Riccardia multifida subsp. decrescens, together with two previously known bisbibenzyls [riccardin A (2) and marchantin I (3)] and a norneolignan [egonol 2-methylbutanoate (4)]. Extensive H-1- and C-13-NMR spectral measurements and chemical derivatization allowed the structure of dimeric riccardin A to be defined; it has been named pusilatin E (1).
Author Yoshida, Tatsuhiko
Asakawa, Yoshinori
Toyota, Masao
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Cites_doi 10.1016/0040-4020(96)00889-7
10.1021/jo00161a009
10.1038/174134a0
10.1021/jo00092a036
10.1016/0031-9422(88)80314-5
10.1007/978-3-7091-6896-7
10.1016/S0031-9422(00)89795-2
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Keywords BIS(BIBENZYLS)
Pharmacognosy
Bryophyta
Oxygen heterocycle
Hepaticae
Macrocycle
Medicinal plant
Chemical modification
Biphenyl derivatives
Plant origin
Phenols
Isolation
Cyclophane
Structural analysis
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Snippet A new cyclic bisbibenzyl dimer (1) has been isolated from the MeOH extract of the liverwort Riccardia multifida subsp. decrescens, together with two previously...
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SubjectTerms Biological and medical sciences
BRYOPHYTA
CHEMICAL COMPOSITION
CHEMICAL STRUCTURE
Chemistry, Medicinal
COMPOSE PHENOLIQUE
COMPOSICION QUIMICA
COMPOSITION CHIMIQUE
COMPUESTOS FENOLICOS
DERIVATIVES
EGONOL 2-METHYLBUTANOATE
ESPECTROMETRIA
ESTRUCTURA QUIMICA
General pharmacology
JAPAN
JAPON
Life Sciences & Biomedicine
MARCHANTIN I
Medical sciences
NORNEOLIGNANS
Pharmacognosy. Homeopathy. Health food
Pharmacology & Pharmacy
Pharmacology. Drug treatments
PHENOLIC COMPOUNDS
Plant Sciences
PURIFICACION
PURIFICATION
RICCARDIN A
Science & Technology
SPECTRAL ANALYSIS
SPECTROMETRIE
SPECTROMETRY
STRUCTURE CHIMIQUE
Title Isolation, Structure Elucidation, and Chemical Derivatization of a New Cyclic Bisbibenzyl Dimer, Pusilatin E, from the Liverwort Riccardia multifida subsp. decrescens
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