Using Cc1cnc(CN)c(C)c1, CS(=O)c1nc(N)nc(-n2cccn2)c1C#N to produce Cc1cnc(CNc2nc(N)nc(-n3cccn3)c2C#N)c(C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.