Using O=S(=O)(OCC[C@H](O)C1CCCCC1)c1ccc(Br)cc1 to produce O=C(CCOS(=O)(=O)c1ccc(Br)cc1)C1CCCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.