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Planta Med 2004; 70(6): 536-539
DOI: 10.1055/s-2004-827154
Original Paper
Natural Product Chemistry
© Georg Thieme Verlag KG Stuttgart · New York

Tenuiflorins A - C: New 2-Phenoxychromones from the Leaves of Mimosa tenuiflora

Leticia León1 , Emma Maldonado1 , Adela Cruz1 , Alfredo Ortega1
  • 1Contribution No. 2466 of the Instituto de Química, UNAM. Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán, México
Further Information

Publication History

Received: November 26, 2003

Accepted: March 7, 2004

Publication Date:
01 July 2004 (online)

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Abstract

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.

Key words

Mimosa tenuiflora - Leguminosae - 2-phenoxychromones - tenuiflorins A, B and C

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Dr. Alfredo Ortega

Instituto de Química

Universidad Nacional Autónoma de México

Circuito Exterior

Ciudad Universitaria

Coyoacán 04510 D. F.

México

Fax: +52-55-5616-2217

Email: emmaldonado@correo.unam.mx

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