CNc1ncnc2nc(C)c(C)nc12    mol4804    0_1
C[NH2+]c1ncnc2nc(C)c(C)nc12    mol4804    1_1
CNc1[nH+]cnc2nc(C)c(C)nc12    mol4804    1_2
CNc1nc[nH+]c2nc(C)c(C)nc12    mol4804    1_3
CNc1ncnc2nc(C)c(C)[nH+]c12    mol4804    1_4
CNc1ncnc2[nH+]c(C)c(C)nc12    mol4804    1_5