Using CCN1C(C)=C(C(=O)OC(C)C)C(c2ccccc2Cl)C2=C1COC2=O, C1CCOC1 to produce CCN1C(C)=C(C(=O)OC(C)C)C(c2ccccc2Cl)C2=C1C(O)OC2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.