Using CC(=O)Nc1nc(C(=O)Nc2ccc(N)cc2)cs1, N#CN to produce CC(=O)Nc1nc(C(=O)Nc2ccc(NC(=N)N)cc2)cs1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.