Tenuiflorins A-C: new 2-phenoxychromones from the leaves of Mimosa tenuiflora

Five 2-phenoxychromones, the new tenuiflorin A [5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenoxy)-6-methoxychromone], tenuiflorin B [5,7-dihydroxy-2-(4-hydroxy-3-methoxyphenoxy)-6-methoxychromone] and tenuiflorin C [5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenoxy)chromone], along with the known 6-demethoxyca...

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Bibliographic Details
Published inPlanta medica Vol. 70; no. 6; pp. 536 - 539
Main Authors Leon, L, Maldonado, E, Cruz, A, Ortega, A
Format Journal Article
LanguageEnglish
Published Germany 01.06.2004
Subjects
2-phenoxychromone
Chromones - chemistry
Crystallography, X-Ray
heterocyclic compounds
Humans
leaves
medicinal plants
Mimosa
Mimosa tenuiflora
phytochemicals
Phytotherapy
plant extracts
Plant Extracts - chemistry
Plant Leaves
spectral analysis
stereochemistry
Tenuiflorins
X-ray diffraction
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Summary:Five 2-phenoxychromones, the new tenuiflorin A [5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenoxy)-6-methoxychromone], tenuiflorin B [5,7-dihydroxy-2-(4-hydroxy-3-methoxyphenoxy)-6-methoxychromone] and tenuiflorin C [5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenoxy)chromone], along with the known 6-demethoxycapillarisin and 6-demethoxy-4'- O-methylcapillarisin were isolated from leaves of Mimosa tenuiflora. Structures of these compounds were established by analysis of their spectroscopic data. A single-crystal diffraction analysis of 6-demethoxy-4'- O-methylcapillarisin was performed in order to confirm the proposed structures.
ISSN:0032-0943
1439-0221
DOI:10.1055/s-2004-827154