Using C=CC[Sn](CCCC)(CCCC)CCCC, O=[N+]([O-])c1ccc(Br)c(C(F)(F)F)c1 to produce C=CCc1ccc([N+](=O)[O-])cc1C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.