Using CN, O=C(O)c1cnc2cc(OCc3cccc(Cl)c3)ccc2c1 to produce CNC(=O)c1cnc2cc(OCc3cccc(Cl)c3)ccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.