Using CN1CCN(C(=O)OC(C)(C)C)C(c2nc(-c3ccc(F)cc3)no2)C1 to produce CN1CCNCC1c1nc(-c2ccc(F)cc2)no1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.