Using O=C(O)c1ccc([N+](=O)[O-])c(O)c1, C1COCCN1 to produce O=C(c1ccc([N+](=O)[O-])c(O)c1)N1CCOCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.