1 546 2-methoxy-6,7-dimethyl-9-(4-methylpyridin-3-yl)imidazo[1,5-a]pyrido[3,2-E]pyrazine 1.000 2 IZQ (10r)-9-(2-chlorophenyl)-2-methoxy-7-methylimidazo[1,5-a]pyrido[3,2-E]pyrazin-6(5h)-one 0.778 3 JFO (10r)-9-(2-chlorophenyl)-2-methoxy-7-methylimidazo[1,5-a]pyrido[3,2-E]pyrazin-6-amine 0.778