1	XNN	N~8~-(cyclopropylmethyl)-2-(2,6-diazaspiro[3.3]hept-2-yl)-N~4~-[2-(methylsulfanyl)phenyl]pyrimido[5,4-D]pyrimidine-4,8-diamine	1.000
2	XNB	N~8~-(cyclopropylmethyl)-N~4~-[2-(methylsulfanyl)phenyl]-2-(piperazin-1-yl)pyrimido[5,4-D]pyrimidine-4,8-diamine	0.794
3	XNA	N~8~-(cyclopropylmethyl)-N~4~-(2-methylphenyl)-2-(piperazin-1-yl)pyrimido[5,4-D]pyrimidine-4,8-diamine	0.714