NC(=O)[C@H](CC(=O)OCc1ccccc1)NC(=O)OCc1ccccc1    mol37396    0_1
[NH-]C(=O)[C@H](CC(=O)OCc1ccccc1)NC(=O)OCc1ccccc1    mol37396    -1_1
NC(=O)[C@H](CC(=O)OCc1ccccc1)[N-]C(=O)OCc1ccccc1    mol37396    -1_2