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