Antituberculosis activity of alkylated mulinane diterpenoids
摘要:
Natural azorellane and mulinane diterpenoids show antituberculosis activity, which is increased by methylation of their free carboxyl group. We have systematically investigated the effect of alkylation in this class of diterpenoids and found that the profile of bioactivity is relatively unaffected by the introduction of short alkyl groups, both linear and branched In this investigation. three semisynthetic diterpenoids, 13 hydroxy-mulin-11-en-20-oic acid n-propyl ester (3) and the n-propyl (19) and n-butyl (20) esters of isomulinic acid, showed the strongest antituberculosis activity (MIC = 6 25 mu g/mL) against a drug-resistant strain of Mycobacterium tuberculosis (C) 2009 Elsevier B V. All rights reserved
Mulinic and isomulinic acids. Rearranged diterpenes with a new carbon skeleton from mulinum crassifolium
作者:Luis A. Loyola、Glauco Morales、Benjamin Rodriguez、Jesús Jiménez-Barbero、Maria C.de la Torre、Aurea Perales、Maria R. Torres
DOI:10.1016/s0040-4020(01)87848-0
日期:1990.1
Two new diterpenoids, mulinic and isomulinic acids, have been isolated from the aerial parts of Mulinum crassifolium (Umbelliferae). The structure of mulinic actd (1) was determined by a combination of spectroscopic and single-crystal X-ray diffraction analyses.The proposed structure of isomulinic acid (2) was based on spectroscopic comparison with mulinic acid and on chemical grounds. The diterpenoids
Antituberculosis activity of alkylated mulinane diterpenoids
作者:Gloria María Molina-Salinas、Jorge Bórquez、Salvador Said-Fernández、Luis Alberto Loyola、Alejandro Yam-Puc、Pola Becerril-Montes、Fabiola Escalante-Erosa、Luis Manuel Peña-Rodríguez
DOI:10.1016/j.fitote.2009.09.006
日期:2010.4
Natural azorellane and mulinane diterpenoids show antituberculosis activity, which is increased by methylation of their free carboxyl group. We have systematically investigated the effect of alkylation in this class of diterpenoids and found that the profile of bioactivity is relatively unaffected by the introduction of short alkyl groups, both linear and branched In this investigation. three semisynthetic diterpenoids, 13 hydroxy-mulin-11-en-20-oic acid n-propyl ester (3) and the n-propyl (19) and n-butyl (20) esters of isomulinic acid, showed the strongest antituberculosis activity (MIC = 6 25 mu g/mL) against a drug-resistant strain of Mycobacterium tuberculosis (C) 2009 Elsevier B V. All rights reserved
Divergent Asymmetric Total Synthesis of Mulinane Diterpenoids
The asymmetric total synthesis of mulinane diterpenoids was developed in a concise and divergent fashion, providing seven mulinane diterpenoids and two analogues in 8.6–20 % overall yield and 11–15 steps.