Using CCCC[Sn](CCCC)(CCCC)c1ncccc1C, COC(=O)c1nc(C)ccc1Br to produce COC(=O)c1nc(C)ccc1-c1ncccc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.