|
Title:
|
Antituberculosis activity of natural and semisynthetic azorellane and mulinane diterpenoids |
|
Author:
|
Molina Salinas, Gloria María; Bórquez, Jorge; Ardiles, Alejandro; Said Fernández, Salvador; Loyola, Luis Alberto; San Martín, Aurelio; González Collado, Isidro; Peña Rodríguez, Luis Manuel
|
|
Abstract:
|
The antituberculosis activity of 14 natural azorellane and mulinane diterpenoids isolated from
Azorella compacta, Azorella madreporica, Mulinum crassifolium, and Laretia acaulis, together
with eight semisynthetic derivatives, was evaluated against two Mycobacterium tuberculosis
strains. The natural azorellanes azorellanol (3) and 17-acetoxy-13-α-hydroxyazorellane (6),
and the semisynthetic mulinanes 13-hydroxy-mulin-11-en-20-oic-acid methyl ester (13) and
mulinenic acid methyl ester (23), showed the strongest activity, with MIC values of 12.5 μg/mL
against both strains. The methylated derivatives 13-hydroxy-mulin-11-en-20-oic-acid methyl
ester (13), mulin-11,13-dien-20-oic acid methyl ester (15) and mulinenic acid methyl ester (23)
proved to be more active than the parent compounds. |
|
URI:
|
http://www.captura.uchile.cl/handle/2250/11468
|
|
Date:
|
2010 |
|
dc.identifier.citation:
|
Fitoterapia 81 (2010) 50–54 |