Using CCCC[Sn](Cl)(CCCC)CCCC, COc1ccc(COC2(c3nccs3)COC2)cc1 to produce CCCC[Sn](CCCC)(CCCC)c1cnc(C2(OCc3ccc(OC)cc3)COC2)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.