Using CC(C)(C)OC(=O)NC(CN1C(=O)c2ccccc2C1=O)CS(C)(=O)=O to produce CC(C)(C)OC(=O)NC(CN)CS(C)(=O)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.