CCO/N=C(\CC)[C@H]1C(=O)C[C@@H](c2c(C)cc(C)cc2C)CC1=O    mol2753    0_1
CCO/N=C(\CC)[C@H]1C(=O)[CH-][C@@H](c2c(C)cc(C)cc2C)CC1=O    mol2753    -1_1
CCO/N=C(\CC)[C-]1C(=O)CC(c2c(C)cc(C)cc2C)CC1=O    mol2753    -1_2