Using CC(=O)COc1c(-c2ccccc2)c(=O)[nH]c2cc(Cl)ccc12, NO to produce CC(COc1c(-c2ccccc2)c(=O)[nH]c2cc(Cl)ccc12)=NO, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.