Using CN1CCn2c(C(F)(F)F)cc(F)c2C12CCN(C(=O)OC(C)(C)C)CC2 to produce CN1CCn2c(C(F)(F)F)cc(F)c2C12CCNCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.