C[NH2+]Cc1c(CO)cnc(C)c1O    mol8604    1_1
C[NH2+]Cc1c(CO)c[nH+]c(C)c1[O-]    mol8604    1_2
CNCc1c(CO)c[nH+]c(C)c1O    mol8604    1_3
C[NH2+]Cc1c(CO)c[nH+]c(C)c1O    mol8604    2_1