c1coc(CNc2ncnc3[nH]ncc23)c1    mol4948    0_1
c1coc(CNc2ncnc3[nH][nH+]cc23)c1    mol4948    1_1
c1coc(CNc2nc[nH+]c3[nH]ncc23)c1    mol4948    1_2
c1coc(CNc2[nH+]cnc3[nH]ncc23)c1    mol4948    1_3
c1coc(C[NH2+]c2ncnc3[nH]ncc23)c1    mol4948    1_4