CCOc1nn(-c2ccccc2)c(OCC)[nH+]1 mol25549 1_1 CCOc1nc(OCC)n(-c2ccccc2)[nH+]1 mol25549 1_2 CCOc1[nH+]c(OCC)n(-c2ccccc2)[nH+]1 mol25549 2_1