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