1 6MM 6-amino-2-({[(3a'R,4s,6'R,6a'R)-2,2,2',2'-tetramethyldihydro-3a'H-spiro[1,3-dioxolane-4,4'-furo[3,4-D][1,3]dioxol]-6'-yl]methyl}amino)-1,7-dihydro-8h-imidazo[4,5-G]quinazolin-8-one (non-preferred name) 1.000 2 E48 6-azanyl-2-[[(1~{R},2~{S},6~{S},9~{R})-4,4,11,11-tetramethyl-3,5,7,10,12-pentaoxatricyclo[7.3.0.0^{2,6}]dodecan-6-yl]methylamino]-3,7-dihydroimidazo[4,5-G]quinazolin-8-one 0.833 3 6MQ Methyl 5-[(6-amino-8-oxo-7,8-dihydro-3h-imidazo[4,5-G]quinazolin-2-yl)amino]-5-deoxy-2,3-O-(1-methylethylidene)-beta-D-ribofuranoside 0.771