Using Cn1[nH]c(=O)[nH]c1=O, COC(=O)c1ccc(CCl)cc1 to produce COC(=O)c1ccc(Cn2c(=O)[nH]n(C)c2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.