1 F29 1-allyl-5-(2-phenylpyrazolo[1,5-a]pyridin-3-yl)-1h-pyrazolo[3,4-C]pyridazin-3-amine 1.000 2 FRZ 5-(2-phenylpyrazolo[1,5-a]pyridin-3-yl)-1h-pyrazolo[3,4-C]pyridazin-3-amine 0.893 3 IR1 5-(2-phenylpyrazolo[1,5-a]pyridin-3-yl)-3h-pyrazolo[3,4-C]pyridazin-3-one 0.828