Using CCCC[Sn](CCCC)(CCCC)c1ccccc1-c1nc(C(=O)NC)cc2ccccc12, FCCCBr to produce CCCC[Sn](CCCC)(CCCC)c1ccccc1-c1nc(C(=O)N(C)CCCF)cc2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.