Using CCCC[Sn](CCCC)(CCCC)c1ccccn1, Brc1ccc2c(c1)OCCn1cc(I)nc1-2 to produce Brc1ccc2c(c1)OCCn1cc(-c3ccccn3)nc1-2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.