1 2YY 4-{2-[(6-amino-8-oxo-7,8-dihydro-1h-imidazo[4,5-G]quinazolin-2-yl)amino]ethyl}benzoic acid 1.000 2 2YW Methyl 4-{2-[(6-amino-8-oxo-7,8-dihydro-1h-imidazo[4,5-G]quinazolin-2-yl)amino]ethyl}benzoate 0.897 3 2YX 4-{2-[(6-amino-8-oxo-7,8-dihydro-1h-imidazo[4,5-G]quinazolin-2-yl)amino]ethyl}benzonitrile 0.893 4 2YV 6-amino-2-[(2-phenylethyl)amino]-1,7-dihydro-8h-imidazo[4,5-G]quinazolin-8-one 0.889 5 6OK 6-amino-2-({2-[4-(2-hydroxyethyl)phenyl]ethyl}amino)-1,7-dihydro-8h-imidazo[4,5-G]quinazolin-8-one 0.862