Using CS(=O)(=O)n1cc([Sn](C)(C)C)c2ccccc21, COc1cc2ncnc(Cl)c2cc1OC to produce COc1cc2ncnc(-c3cn(S(C)(=O)=O)c4ccccc34)c2cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.