Using O=C(NCCc1cccc(Cl)c1)c1coc(CN2C(=O)c3ccccc3C2=O)n1 to produce NCc1nc(C(=O)NCCc2cccc(Cl)c2)co1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.