Using CCCc1c(OCCCOc2ccc(C(=O)OC3CCCCO3)cc2Br)ccc(C(C)=O)c1OC(C)=O to produce CCCc1c(OCCCOc2ccc(C(=O)O)cc2Br)ccc(C(C)=O)c1OC(C)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.