1 1WK Methyl 6-[6-amino-2-(methylamino)-8-oxo-7,8-dihydro-1h-imidazo[4,5-G]quinazolin-4-yl]-5,6-dideoxy-beta-D-ribo-hexofuranoside 1.000 2 1UD Methyl 6-[6-amino-2-(methylamino)-8-oxo-7,8-dihydro-1h-imidazo[4,5-G]quinazolin-4-yl]-5,6-dideoxy-3-O-methyl-beta-D-ribo-hexofuranoside 0.900 3 1WJ Methyl 6-[6-amino-2-(methylamino)-8-oxo-7,8-dihydro-1h-imidazo[4,5-G]quinazolin-4-yl]-5,6-dideoxy-2-O-methyl-beta-D-ribo-hexofuranoside 0.900 4 725 6-amino-2-(methylamino)-4-(2-((2r,3r,4r,5r)-3,4,5-trimethoxytetrahydrofuran-2-yl)ethyl)-1h-imidazo[4,5-G]quinazolin-8(7h)-one 0.812 5 72C 4-[2-[(3~{a}~{R},4~{R},6~{R},6~{a}~{R})-4-methoxy-2,2-dimethyl-3~{a},4,6,6~{a}-tetrahydrofuro[3,4-D][1,3]dioxol-6-yl]ethyl]-6-azanyl-2-(methylamino)-1,7-dihydroimidazo[4,5-G]quinazolin-8-one 0.788 6 E89 6-amino-4-[2-(4-methoxyphenyl)ethyl]-1,7-dihydro-8h-imidazo[4,5-G]quinazolin-8-one 0.767 7 OQN 6-amino-2-(methylamino)-4-phenethyl-1,7-dihydro-8h-imidazo[4,5-G]quinazolin-8-one 0.767 8 NE8 6-amino-4-(2-phenylethyl)-1,7-dihydro-8h-imidazo[4,5-G]quinazolin-8-one 0.700