Using CCCBr, COc1c(OC(F)F)ccc(-c2cccc3c2CCC3=O)c1O to produce CCCOc1c(-c2cccc3c2CCC3=O)ccc(OC(F)F)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.