Using CCCC[Sn](Cl)(CCCC)CCCC, c1csc(-c2cccs2)c1 to produce CCCC[Sn](CCCC)(CCCC)C1(c2cccs2)CC=CS1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.