Using COc1ccc2nc(CC(C)C)c(C#N)c(-c3ccccc3)c2c1 to produce COc1ccc2nc(CC(C)C)c(CN)c(-c3ccccc3)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.