Using Cc1ccc2nc(S)n(-c3ccccc3)c(=O)c2c1, ClCc1ccccn1 to produce Cc1ccc2nc(SCc3ccccn3)n(-c3ccccc3)c(=O)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.