Using C[C@H](NC(=O)Cc1cc(F)cc(F)c1)C(=O)O, COCC(N)C(=O)OC to produce COCC(NC(=O)[C@H](C)NC(=O)Cc1cc(F)cc(F)c1)C(=O)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.