NCC(=O)NCC(=O)N[C@@H](Cc1cnc[nH]1)C(N)=O    mol8545    0_1
NC(=O)[C@H](Cc1cnc[nH]1)NC(=O)CNC(=O)C[NH3+]    mol8545    1_1
NCC(=O)NCC(=O)N[C@@H](Cc1c[nH+]c[nH]1)C(N)=O    mol8545    1_2
NC(=O)[C@H](Cc1c[nH+]c[nH]1)NC(=O)CNC(=O)C[NH3+]    mol8545    2_1