Using CC(C)Nc1nc(Cl)nc(N(C(=O)OC(C)(C)C)N(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C)c1F to produce CC(C)Nc1nc(Cl)nc(NN)c1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.