Using CC(C)(C)OC(=O)N(CCO)C[C@H](O)c1ccc(Cl)c(F)c1 to produce CC(C)(C)OC(=O)N1CCO[C@H](c2ccc(Cl)c(F)c2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.