Using O=C(O)c1ccc(C=Cc2n[nH]c3ccccc23)c([N+](=O)[O-])c1 to produce Nc1cc(C(=O)O)ccc1C=Cc1n[nH]c2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.