Using Clc1ccc(Cc2ccncc2)cc1, CC(C)(C)OC(=O)N(CCCl)CCCl to produce CC(C)(C)OC(=O)N1CCC(c2ccncc2)(c2ccc(Cl)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.