COc1cc2nc(Cl)nc(N)c2cc1OC SAMPL8-22 0_1 COc1cc2[nH+]c(Cl)nc(N)c2cc1OC SAMPL8-22 1_1 COc1cc2nc(Cl)nc([NH3+])c2cc1OC SAMPL8-22 1_2 COc1cc2nc(Cl)[nH+]c(N)c2cc1OC SAMPL8-22 1_3