Using C[O-], COC(=O)c1ccc(-c2ccc(OCCCCBr)cc2)cc1 to produce COCCCCOc1ccc(-c2ccc(C(=O)OC)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.