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.

References

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