Using CCOCCl, FC(F)(F)c1[nH]c(-c2ccc(Cl)c(Cl)c2)c(Br)c1C(F)(F)F to produce CCOCn1c(-c2ccc(Cl)c(Cl)c2)c(Br)c(C(F)(F)F)c1C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.