Using CCCCCOc1ccc(-c2ccc(Br)cc2)cc1, O=Cc1ccc(B(O)O)cc1 to produce CCCCCOc1ccc(-c2ccc(-c3ccc(C=O)cc3)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.