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Sesquiterpenes and a Phenylpropanoid from Cordia trichotoma

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Sesquiterpenes and a Phenylpropanoid from Cordia trichotoma

Jane Eire S. A. de Menezes

a

, Francisca Elane A. Machado

a

, Telma Leda G. Lemos

a

, Edilberto R. Silveira

a

, Raimundo Braz Filho

b

, and Otı´lia Deusdeˆnia L. Pessoa

a,*

a Curso de Po´s-Graduac¸a˜o em Quı´mica Orgaˆnica, Departamento de Quı´mica Orgaˆnica e Inorgaˆnica, Centro de Cieˆncias, Universidade Federal do Ceara´, 12.200, FortalezaÐCE, 60021-970, Brazil. E-mail: otilia@dqoi.ufc.br

b Setor de Quı´mica de Produtos NaturaisÐLCQUI-CCT, Universidade Estadual do Norte Fluminense, CamposÐRJ, 28015-620, Brazil

* Author for correspondence and reprint requests

Z. Naturforsch.59 c, 19Ð22 (2004); received March 11/June 5, 2003

Two new secondary metabolites, the phenylpropanoid 3-(2⬘,4⬘,5⬘-trimethoxyphenyl)propa- noic acid (1) and the sesquiterpene (+)-1β,4β,6α-trihydroxyeudesmane (2) were isolated from the heartwood ofCordia trichotomaVell., along with the known sesquiterpenes (Ð)-1β,4β,7α- trihydroxyeudesmane (3) and (+)-1β,4β,11-trihydroxyoppositane (4). Their structures were elucidated by means of spectroscopic data interpretation, mainly 1D and 2D NMR and mass spectrometry.

Key words: Cordia trichotoma, Sesquiterpenes, Phenylpropanoid

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