NC1=Nc2nccnc2[C@H](O)N1    mol8051    0_1
NC1=[NH+]c2nccnc2[C@H](O)N1    mol8051    1_1
NC1=Nc2ncc[nH+]c2[C@H](O)N1    mol8051    1_2
NC1=Nc2[nH+]ccnc2[C@H](O)N1    mol8051    1_3