Using BrCCCBr, Cc1c(-c2ccccc2)oc2c(C(=O)[O-])cccc2c1=O to produce Cc1c(-c2ccccc2)oc2c(C(=O)OCCCBr)cccc2c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.