Using CCCc1cc([Sn](C)(C)C)nc(C#N)n1, COc1ccc(Br)cc1C(F)(F)F to produce CCCc1cc(-c2ccc(OC)c(C(F)(F)F)c2)nc(C#N)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.