1,4-dichloro-5H-pyridazino[4,5-b]indole

4-(1-morpholin-4-yl-5H-pyridazino[4,5-b]indol-4-yl)morpholine

6-chloro-3-methyl-5h-[1,2,4]triazolo[4',3':2,3]pyridazino[4,5-b]indole

6-(N-morpholino)-11H-1,2,4-triazolo<4,3-b>pyridazino<4,5-b>indole