Using O=C(Cl)c1ccccc1Cl, CCCC[Sn](CCCC)(CCCC)COCc1cc(C(F)(F)F)cc(C(F)(F)F)c1 to produce O=C(COCc1cc(C(F)(F)F)cc(C(F)(F)F)c1)c1ccccc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.