1 810 Ethyl [2-(methylamino)-8-oxo-7,8-dihydro-1h-imidazo[4,5-G]quinazolin-6-yl]carbamate 1.000 2 6JX Allyl (2-(methylamino)-8-oxo-7,8-dihydro-1h-imidazo[4,5-G]quinazolin-6-yl)carbamate 0.957 3 HRD 2,6-bis(methylamino)-1,7-dihydro-8h-imidazo[4,5-G]quinazolin-8-one 0.818 4 62D 6-(ethylamino)-2-(methylamino)-3,7-dihydro-8h-imidazo[4,5-G]quinazolin-8-one 0.783 5 ITE 2-(methylamino)-1,7-dihydro-8h-imidazo[4,5-G]quinazolin-8-one 0.727