Using O=C(Cl)Cc1ccc(Cl)cc1, CCOC(=O)CNc1ccccc1 to produce CCOC(=O)CN(C(=O)Cc1ccc(Cl)cc1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.