Nc2ncnc3n([C@@H]1O[C@H](CO[P@]([O-])(=O)O[P@]([O-])(=O)OP([O-])([O-])=O)[C@@H](O)[C@H]1O)cnc23 ATP_400_1HCK -3.535 290.466 31 503.15 18 4 2 8 343.608