Synthetic chalcones as efficient inhibitors of Mycobacterium tuberculosis protein tyrosine phosphatase PtpA
摘要:
In the search for lead compounds for new drugs for tuberculosis, the activity of 38 synthetic chalcones were assayed for their potential inhibitory action towards a protein tyrosine phosphatase from Mycobacterium tuberculosis - PtpA. The compounds were obtained by aldolic condensation between aldehydes and acetophenones, under basic conditions. Five compounds presented moderate or good activity. The structure - activity analysis reveals that the predominant factor for the activity is the molecule planarity/hydrophobicity and the nature of the substituents. (C) 2008 Elsevier Ltd. All rights reserved.
In vitro and in vivo efficacy and in vitro metabolism of 1-phenyl-3-aryl-2-propen-1-ones against Plasmodium falciparum
作者:Clare E. Gutteridge、Daniel A. Nichols、Sean M. Curtis、Darshan S. Thota、Joseph V. Vo、Lucia Gerena、Gettayacamin Montip、Constance O. Asher、Damaris S. Diaz、Charles A. DiTusa、Kirsten S. Smith、Apurba K. Bhattacharjee
DOI:10.1016/j.bmcl.2006.08.009
日期:2006.11
Investigation of a series of 1-phenyl-3-aryl-2-propen-1-ones resulted in the identification of nine inhibitors with submicromolar efficacy against at least one Plasmodium falciparum strain in vitro. These inhibitors were inactive when given orally in a Plasmodium berghei infected mouse model. Significant compound degradation occurred upon their exposure to a liver microsome preparation, suggesting metabolic instability may be responsible for the lack of activity in vivo. (c) 2006 Elsevier Ltd. All rights reserved.