CCOC(=O)NCc1nccnc1N    mol6775    0_1
CCOC(=O)NCc1nccnc1[NH3+]    mol6775    1_1
CCOC(=O)NCc1[nH+]ccnc1N    mol6775    1_2
CCOC(=O)NCc1ncc[nH+]c1N    mol6775    1_3