Using COC(=O)Cc1sc(NC(=O)c2cc(Br)ccc2O)nc1-c1ccccc1 to produce O=C(O)Cc1sc(NC(=O)c2cc(Br)ccc2O)nc1-c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.