Using C=C[Sn](CCCC)(CCCC)CCCC, Cc1nn(-c2c(Cl)cc(C(F)(F)F)cc2Cl)cc1I to produce C=Cc1cn(-c2c(Cl)cc(C(F)(F)F)cc2Cl)nc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.