Using COC(=O)CS, N#Cc1ccc(-c2nccnc2Cl)c2ccccc12 to produce COC(=O)CSc1nccnc1-c1ccc(C#N)c2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.