Diterpenos tipo abietano isolados de Plectranthus barbatus Andrews Abitane diterpenoids isolation from Plectranthus barbatus

Diterpenos tipo abietano isolados de Plectranthus barbatus Andrews Abitane diterpenoids isolation from Plectranthus barbatus

<abstract language="eng">Plectranthus barbatus is largely used in the Northeast region of Brazil by the local population for treatment of digestive problems as substitute of boldo (Pneumus boldus). Phytochemical analysis of the leaf extracts of Plectranthus barbatus (Labiatae) cultiv...

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Bibliographic Details
Main Authors: Roberto L. de Albuquerque, Marta R. Kentopff, Maria Iracema L. Machado, Maria Goretti V. Silva, Francisco José de A. Matos, Selene M. Morais, Raimundo Braz-Filho
Format: Article
Language:English
Published: Sociedade Brasileira de Química 2007-01-01
Series:Química Nova
Subjects:
Plectranthus barbatus
Labiatae
abietane diterpenoids
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000800016
Description
Summary:<abstract language="eng">Plectranthus barbatus is largely used in the Northeast region of Brazil by the local population for treatment of digestive problems as substitute of boldo (Pneumus boldus). Phytochemical analysis of the leaf extracts of Plectranthus barbatus (Labiatae) cultivated in this region yielded two abietane diterpenoids, cyclobubatusin (1) and barbatusin (2) and a new one named 7beta-acetyl-12-deacetoxycyclobutatusin (3). The structures of the isolated compounds were established by spectral analysis, using mainly mass spectra and ¹H and 13CNMR (1D and 2D). These procedures permitted the assignment of all chemical shifts in the diterpenoids.
ISSN:0100-4042
1678-7064

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