Using O=C(O)CCCCCCCCCCCCCCOCCCCCCCCCCCCCCCBr, O=C1CCCCCCCCCCCCCCO1 to produce O=C(O)CCCCCCCCCCCCCCBr, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.