Nc2ncnc3n([C@@H]1O[C@H](CO[P@]([O-])(=O)O[P@]([O-])(=O)O[P@@]([O-])(S)=O)[C@@H](O)[C@H]1O)cnc23 AGS_2_3EQD -2.923 267.409 31 520.226 17 4 2 8 355.993