1	5BP	N-cyclopropyl-4-pyrazolo[1,5-B]pyridazin-3-ylpyrimidin-2-amine	1.000
2	KQW	~{N}-cyclopropyl-~{N}-methyl-4-pyrazolo[1,5-B]pyridazin-3-yl-pyrimidin-2-amine	0.950
3	KRQ	~{N}-methyl-4-pyrazolo[1,5-B]pyridazin-3-yl-pyrimidin-2-amine	0.800
4	KQK	~{N},~{N}-dimethyl-4-pyrazolo[1,5-B]pyridazin-3-yl-pyrimidin-2-amine	0.762
5	KR8	~{N}-methyl-~{N}-phenyl-4-pyrazolo[1,5-B]pyridazin-3-yl-pyrimidin-2-amine	0.750