Using O=C(O)c1cc(F)cnc1Cl, CC(C)(C)OC(=O)NC1CCC(N)CC1 to produce CC(C)(C)OC(=O)NC1CCC(NC(=O)c2cc(F)cnc2Cl)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.