Using CCOC(C)=O, COc1ccc(Cl)c(CC(=O)c2ccc(=O)n(C)c2)c1 to produce COc1ccc(Cl)c(C(C)C(=O)c2ccc(=O)n(C)c2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.