Using O=C(Nc1ccc(Cl)cc1C1=CCN(Cc2ccccc2)CC1)c1ccnc(Cl)c1, CC(Cl)OC(=O)Cl to produce CC(Cl)OC(=O)N1CC=C(c2cc(Cl)ccc2NC(=O)c2ccnc(Cl)c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.