Using O=C1NCc2cccnc2N1c1cccc(Cl)c1, ClCc1ccncc1 to produce O=C1N(Cc2ccncc2)Cc2cccnc2N1c1cccc(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.