Using O=[N+]([O-])c1cccc(-c2n[nH]c3ncnc(Nc4cccc(Cl)c4)c23)c1 to produce Nc1cccc(-c2n[nH]c3ncnc(Nc4cccc(Cl)c4)c23)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.