Using C=C(c1cccc(C(=O)c2ccccc2)c1)C(O)C(=O)OCC to produce CCOC(=O)C(=O)C(C)c1cccc(C(=O)c2ccccc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.