Aminopyrazolo[1,5-a]pyrimidines as potential inhibitors of Mycobacterium tuberculosis: Structure activity relationships and ADME characterization
作者:Candice Soares de Melo、Tzu-Shean Feng、Renier van der Westhuyzen、Richard K. Gessner、Leslie J. Street、Garreth L. Morgans、Digby F. Warner、Atica Moosa、Krupa Naran、Nina Lawrence、Helena I.M. Boshoff、Clifton E. Barry、C. John Harris、Richard Gordon、Kelly Chibale
DOI:10.1016/j.bmc.2015.10.021
日期:2015.11
Whole-cell high-throughput screening of a diverse SoftFocus library against Mycobacterium tuberculosis (Mtb) generated a novel aminopyrazolo[1,5-a]pyrimidine hit series. The synthesis and structure activity relationship studies identified compounds with potent antimycobacterial activity. The SAR of over 140 compounds shows that the 2-pyridylmethylamine moiety at the C-7 position of the pyrazolopyrimidine scaffold was important for Mtb activity, whereas the C-3 position offered a higher degree of flexibility. The series was also profiled for in vitro cytotoxicity and microsomal metabolic stability as well as physicochemical properties. Consequently liabilities to be addressed in a future lead optimization campaign have been identified. (C) 2015 Elsevier Ltd. All rights reserved.