Using CC(C)NC(=O)c1ccc(N2CCN(C(=O)OC(C)(C)C)CC2)c(F)c1 to produce CC(C)NC(=O)c1ccc(N2CCNCC2)c(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.