Using CSc1nn(-c2ccccc2)c(N)c1C#N, COC(=O)C#CC(=O)OC to produce COC(=O)c1nc2c(c(SC)nn2-c2ccccc2)c(N)c1C(=O)OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.