CC(=O)[C@@H](N)C(=O)OCc1ccccc1    mol11593    0_1
CC(=O)[C@@H]([NH3+])C(=O)OCc1ccccc1    mol11593    1_1
CC(=O)[C-](N)C(=O)OCc1ccccc1    mol11593    -1_1
[CH2-]C(=O)[C@@H](N)C(=O)OCc1ccccc1    mol11593    -1_2