Antituberculosis activity of natural and semisynthetic azorellane and mulinane diterpenoids
作者:Gloria María Molina-Salinas、Jorge Bórquez、Alejandro Ardiles、Salvador Said-Fernández、Luis Alberto Loyola、Aurelio San-Martín、Isidro González-Collado、Luis Manuel Peña-Rodríguez
DOI:10.1016/j.fitote.2009.07.005
日期:2010.1
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-alpha-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 mu g/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. (C) 2009 Elsevier B.V. All rights reserved.