Using O=C(O)CCCn1cc(C(=O)c2cccc([N+](=O)[O-])c2)c2ccccc21 to produce Nc1cccc(C(=O)c2cn(CCCC(=O)O)c3ccccc23)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.