Using O=C(Cn1cncn1)N[C@@H](CCCNC(=O)OCc1ccccc1)C(=O)Nc1ccc(Oc2ccc(F)cc2)cc1 to produce NCCC[C@H](NC(=O)Cn1cncn1)C(=O)Nc1ccc(Oc2ccc(F)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.