Using CCOCC, COC(=O)[C@@H](N)Cc1c[nH]c2ccc(F)cc12 to produce COC(=O)[C@@H]1Cc2c([nH]c3ccc(F)cc23)CN1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.