Using CC(=O)N1CCOCC1, COc1ccc(C(=O)c2ccc(Cl)cc2)cc1OC to produce COc1ccc(C(=CC(=O)N2CCOCC2)c2ccc(Cl)cc2)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.