Using CCCC[Sn](CCCC)(CCCC)c1scc2c1OCCO2, O=[N+]([O-])c1ccc(Br)cc1 to produce O=[N+]([O-])c1ccc(-c2scc3c2OCCO3)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.