Coumaronochromones from the stems of Euschresta formosana

Two new coumaronochromones, named euchretins B and C, were isolated from the stems of Euchresta formosana in addition to a known coumaronochromone, euchretin A. By means of the spectroscopic data, the structures of euchretines B and C were determined to be 8,3′-di (γ,γ-dimethylallyl)-5,7,4′,5′-tetra...

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Published inPhytochemistry (Oxford) Vol. 28; no. 9; pp. 2518 - 2519
Main Authors Mizuno, Mizuo, Tanaka, Toshiyuki, Tamura, Koh-Ichi, Iinuma, Munekazu
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier Ltd 1989
Elsevier
Subjects
Analysis of complex biological substances
Analytical, structural and metabolic biochemistry
Biological and medical sciences
chemical constituents of plants
chemical structure
coumaronochromone
Euchresta formosana
euchretin B
euchretin C
euchretins b
euchretins c
Fabaceae
flavonoids
Fundamental and applied biological sciences. Psychology
Leguminosae
medicinal plants
Plants and fungi
stems
traditional medicine
Taiwan
euchretin B
Leguminosae
euchretin C
Euchresta formosana
coumaronochromone
Characterization
Vegetals
Molecular structure
Dicotyledones
Angiospermae
Isolation
Spermatophyta
NMR spectrometry
Ultraviolet visible spectrometry
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Summary:Two new coumaronochromones, named euchretins B and C, were isolated from the stems of Euchresta formosana in addition to a known coumaronochromone, euchretin A. By means of the spectroscopic data, the structures of euchretines B and C were determined to be 8,3′-di (γ,γ-dimethylallyl)-5,7,4′,5′-tetrahydroxy- and 6,8,3′-tri(γ,γ-dimethylallyl)-5,7,4′,5′-tetrahydroxycoumaronochromone respectively.
ISSN:0031-9422
1873-3700
DOI:10.1016/S0031-9422(00)98023-3