Using OCc1csc(Cl)c1, CCc1nc2ccc(-n3ccc(O)cc3=O)cn2c1C to produce CCc1nc2ccc(-n3ccc(OCc4csc(Cl)c4)cc3=O)cn2c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.