4-(3-Trifluoromethylphenyl)-pyrimidine-2-carbonitrile as cathepsin S inhibitors: N3, not N1 is critically important
作者:Jiaqiang Cai、Xavier Fradera、Mario van Zeeland、Maureen Dempster、Kenneth S. Cameron、D. Jonathan Bennett、John Robinson、Lucy Popplestone、Mark Baugh、Paul Westwood、John Bruin、William Hamilton、Emma Kinghorn、Clive Long、Joost C.M. Uitdehaag
DOI:10.1016/j.bmcl.2010.06.043
日期:2010.8
Using computer aided modelling studies, a new extended P2/S2 interaction was identified. This extended region can accommodate a variety of functional groups, such as aryls and basic amines. It was discovered that the N3 nitrogen of the pyrimidine-2-carbonitrile is critical for its cathepsin cysteine protease inhibition. N1 nitrogen also contributes to the inhibitory activity, but to a very limited degree. An 'in situ double activation' mechanism was proposed to explain these results. (C) 2010 Elsevier Ltd. All rights reserved.