Using COc1ccc(C2=CC(=O)CCC2c2ccc(OC)cc2)cc1, NO to produce COc1ccc(C2=CC(=NO)CCC2c2ccc(OC)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.