Using BrCCCBr, CCCc1c(OCCCCCC(=O)OC)ccc(C(C)=O)c1O to produce CCCc1c(OCCCCCC(=O)OC)ccc(C(C)=O)c1OCCCBr, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.