Using O=C(O)C(F)F, CC(C)N(C(=O)c1ccc2c(c1)N(CCN)C(=O)C2(C)C)[C@@H]1CCCN(C(=O)OC(C)(C)C)C1 to produce CC(C)N(C(=O)c1ccc2c(c1)N(CCNC(=O)C(F)F)C(=O)C2(C)C)[C@@H]1CCCN(C(=O)OC(C)(C)C)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.