Using COC(=O)C1(NCC2(NC(=O)OC(C)(C)C)CCc3c(F)cc(F)cc32)CCCC1 to produce COC(=O)C1(NCC2(N)CCc3c(F)cc(F)cc32)CCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.