Using O=C(Cl)OCC(Cl)(Cl)Cl, CC(C)(C#N)c1cc(N)n(-c2cccc(OCCOC3CCCCO3)c2)n1 to produce CC(C)(C#N)c1cc(NC(=O)OCC(Cl)(Cl)Cl)n(-c2cccc(OCCOC3CCCCO3)c2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.