Using Cc1c(OC2CCCCO2)cc(C=O)c(O)c1C, COC(=O)CBr to produce COC(=O)COc1c(C=O)cc(OC2CCCCO2)c(C)c1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.