Using CCCC[Sn](CCCC)(CCCC)c1nccs1, CC(C)(C)OC(=O)N1CCC(=C(Br)c2ccccc2)CC1 to produce CC(C)(C)OC(=O)N1CCC(=C(c2ccccc2)c2nccs2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.