COC(=O)c1nc(-c2ccncc2)[nH]c1C(=O)OC    mol16609    0_1
COC(=O)c1[nH]c(-c2ccncc2)[nH+]c1C(=O)OC    mol16609    1_1
COC(=O)c1nc(-c2cc[nH+]cc2)[nH]c1C(=O)OC    mol16609    1_2
COC(=O)c1nc(-c2ccncc2)[n-]c1C(=O)OC    mol16609    -1_1