Using CI, CCOC(=O)c1sc(NC(=O)c2ccc(C#N)cc2)nc1C to produce CCOC(=O)c1sc(=NC(=O)c2ccc(C#N)cc2)n(C)c1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.