Using CC(C)(C)OC(=O)NCCN(Cc1cccc(F)c1)Cc1nccn1Cc1cc(Cl)cc(Cl)c1 to produce NCCN(Cc1cccc(F)c1)Cc1nccn1Cc1cc(Cl)cc(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.