Using COc1ccc(C=CC(=O)O)cc1OC, O=C(C=Cc1ccccc1)OCC1CO1 to produce COc1ccc(C=CC(=O)OCC(O)COC(=O)/C=C/c2ccccc2)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.