Using COc1ccc(-c2cccc3c2CCC3=O)c(O)c1OC, COCC(C)(C)CBr to produce COCC(C)(C)COc1c(-c2cccc3c2CCC3=O)ccc(OC)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.