Using Cc1ccc(-c2ccccc2)cc1Cn1c(CO)nn(C)c1=O to produce Cc1ccc(-c2ccccc2)cc1Cn1c(C=O)nn(C)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.