Using CCCc1c(OCCCBr)ccc(C(C)=O)c1O, COC(=O)CBr to produce CCCc1c(OCCCBr)ccc(C(C)=O)c1OCC(=O)OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.