CCOC(=O)C(C(C)=O)=C(O)C=Cc1ccccc1    mol35843    0_1
[CH2-]C(=O)C(C(=O)OCC)=C(O)C=Cc1ccccc1    mol35843    -1_1
CCOC(=O)C(C(C)=O)=C([O-])C=Cc1ccccc1    mol35843    -1_2