Using OB(O)c1ccccc1F, CC(C)(C)OC(=O)N(N)Cc1ccccc1 to produce CC(C)(C)OC(=O)N(Cc1ccccc1)Nc1ccccc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.