Using CC(C)(C)OC(=O)N1CC(CO)C1, COC(=O)c1cc(Cl)c(F)cc1F to produce COC(=O)c1cc(Cl)c(OCC2CN(C(=O)OC(C)(C)C)C2)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.