1	3QG	[2-({2-[bis(2-phosphonoethyl)amino]ethyl}[2-(6-oxo-3,6-dihydro-9h-purin-9-yl)ethyl]amino)ethyl]phosphonic acid	1.000
2	3QF	[2-([2-(2-amino-6-oxo-1,6-dihydro-9h-purin-9-yl)ethyl]{2-[(2-oxoethyl)(2-phosphonoethyl)amino]ethyl}amino)ethyl]phosphonic acid	0.833