摘要:
The optimization of the distance between two key pharmacophore features within our first hit compounds la and 2a led to the identification of a new class of potent non-peptidic antagonists for the MCH-R1, based around 4-amino-2-cyclohexylamino-quinazolines. In particular, ATC0065 (2c), N-2-[cis-4-({2-[4-Bromo-2-(trifluoromethoxy)phenyl]ethyl}amino)cyclohexyl]-N-4,N-4-dimethylquinazoline-2,4-diamine dihydrochloride, bound with high affinity to the MCH-R1 (IC50 value of 16 nM) and showed good metabolic stability in liver microsomes from human and rat. (c) 2006 Elsevier Ltd. All rights reserved.