Using CC(C)(C)OC(=O)CC[C@H](NC(=O)OC(C)(C)C)C(=O)O, CCCCn1cc(NC(=O)Nc2ccc(OC(F)(F)F)cc2)nc1C(=O)NCCO to produce CCCCn1cc(NC(=O)Nc2ccc(OC(F)(F)F)cc2)nc1C(=O)NCCOC(=O)[C@@H](N)CCC(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.