Using CC(=O)Cl, Nc1ccc(Cl)cc1C(=O)NCc1ccc2c(c1)OCO2 to produce CC(=O)Nc1ccc(Cl)cc1C(=O)NCc1ccc2c(c1)OCO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.