Using Cc1ccc(Br)c(C(=O)O)c1F, CCCCCc1ccc(Br)c(O)c1F to produce CCCCCc1ccc(Br)c(OC(=O)c2c(Br)ccc(C)c2F)c1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.