Using Cc1c([N+](=O)[O-])ccnc1C(=O)NCCNC(=O)OC(C)(C)C to produce Cc1c([N+](=O)[O-])ccnc1C(=O)NCCN, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.