Cc1cc(=O)oc2cc(O)c(CC(=O)[O-])cc12    mol11657    -1_1
Cc1cc(=O)oc2cc([O-])c(CC(=O)O)cc12    mol11657    -1_2
Cc1cc(=O)oc2cc([O-])c(CC(=O)[O-])cc12    mol11657    -2_1