Using NCCN, N#Cc1ccc(CCC(=O)NCCCNCS(=O)(=O)c2cccc(Cl)c2Cl)cc1 to produce O=C(CCc1ccc(C2=NCCN2)cc1)NCCCNCS(=O)(=O)c1cccc(Cl)c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.