c1cn2ccc3cc4c(nc3c2[nH+]1)CCCC4    mol17983    1_1
c1cn2ccc3cc4c([nH+]c3c2n1)CCCC4    mol17983    1_2
c1cn2ccc3cc4c([nH+]c3c2[nH+]1)CCCC4    mol17983    2_1