Using COc1cc(OC)c(C(C)=O)c(O)c1CCC(C)C, COC(=O)CBr to produce COC(=O)COc1c(CCC(C)C)c(OC)cc(OC)c1C(C)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.