Using CC(C)(C)OC(=O)N1CC(C)(C)c2cnc(C(F)(F)c3ccccc3)cc21 to produce CC1(C)CNc2cc(C(F)(F)c3ccccc3)ncc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.