1 QN7 (8s)-3,3-difluoro-8-(2'-fluoro-3'-methoxybiphenyl-3-yl)-8-pyridin-4-yl-2,3,4,8-tetrahydroimidazo[1,5-a]pyrimidin-6-amine 1.000 2 2QH (8r)-3,3-difluoro-8-[4-fluoro-3-(pyridin-3-yl)phenyl]-8-(4-methoxy-3-methylphenyl)-2,3,4,8-tetrahydroimidazo[1,5-a]pyrimidin-6-amine 0.718