Using O=c1[nH]nc2n1-c1ccc(Cl)nc1C(c1ccccc1)=[N+]([O-])C2 to produce O=c1[nH]nc2n1-c1ccc(Cl)nc1C(c1ccccc1)=NC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.