Using CC(C)(C)OC(=O)NCc1cccc(C(=O)N2CCOc3nccc(-c4ccc(F)cc4)c3C2)c1 to produce NCc1cccc(C(=O)N2CCOc3nccc(-c4ccc(F)cc4)c3C2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.