Using CCN(Cc1cc(C(F)(F)F)ccc1-c1cncc(CC(=O)OC)c1)C(=O)OC(C)(C)C to produce CCNCc1cc(C(F)(F)F)ccc1-c1cncc(CC(=O)OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.