0  B12R0.694  O=C([O-])CC(O)(CC(=O)[O-])C(=O)[O-] BBC/229 [0,0,0,0,0,0|0,0,3]=3
1  B12R0.43  O=C(O)CC(C(=O)O)C(O)C(=O)[O-] BBC/550 [1,1,0,0,0,0|0,0,1]=3
2  B12R0.41  NC(=O)CN(CC(=O)O)CC(=O)O BBC/304 [1,0,0,0,0,1|2,0,0]=4