CN1C[C@@H](C(=O)Nc2ccccc2)C(=O)C1=O    mol16998    0_1
CN1C[C@@H](C(=O)Nc2ccccc2)C(=[OH+])C1=O    mol16998    1_1
CN1C[C@@H](C(=[OH+])Nc2ccccc2)C(=O)C1=O    mol16998    1_2
CN1C[C@@H](C(=O)Nc2ccccc2)C(=O)C1=[OH+]    mol16998    1_3