Using CCCCOC(=O)CCC(C)=O, CCC(CO)(CO)[N+](=O)[O-] to produce CCCCOC(=O)CCC1(C)OCC(CC)([N+](=O)[O-])CO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.