Using COc1cc(C(=O)c2ccnc(Br)c2)c(C(OC)OC)cc1OC to produce COc1cc(C=O)c(C(=O)c2ccnc(Br)c2)cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.