1 KKQ [4-[[2-(4-bromophenyl)imidazo[1,2-a]pyridin-3-yl]methyl]piperazin-1-yl]-(2-fluorophenyl)methanone 1.000 2 KKZ [4-[[2-(4-chlorophenyl)imidazo[1,2-a]pyridin-3-yl]methyl]piperazin-1-yl]-[6-(trifluoromethyloxy)pyridin-2-yl]methanone 0.744