Using O=C(O)c1ccc(Cn2c(-c3ccccc3)cc3ccccc32)cc1, NO to produce O=C(NO)c1ccc(Cn2c(-c3ccccc3)cc3ccccc32)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.