Using O=C(O)c1ccc(F)c(Br)c1, CCOC(=O)[C@H](O)[C@H](N)Cc1ccccc1 to produce CCOC(=O)[C@H](O)[C@@H](Cc1ccccc1)NC(=O)c1ccc(F)c(Br)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.