Using C[C@@H]1CCCN1C1CCC(c2ccc(N3CCC4(CCN(C(=O)OC(C)(C)C)CC4)C3=O)c(F)c2)CC1 to produce C[C@@H]1CCCN1C1CCC(c2ccc(N3CCC4(CCNCC4)C3=O)c(F)c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.