1 4RD N-[(4r)-6,8-dichloro-3,4-dihydro-2h-chromen-4-yl]-N'-(5-fluoro-1h-imidazo[4,5-B]pyridin-2-yl)propane-1,3-diamine 1.000 2 4RC N-[(4r)-6,8-dichloro-1,2,3,4-tetrahydroquinolin-4-yl]-N'-(5-fluoro-3h-imidazo[4,5-B]pyridin-2-yl)propane-1,3-diamine 0.929