Using COC(=O)C(C(=O)OC)C(=O)c1cc(Br)ccc1SC(=O)N(C)C to produce COC(=O)c1c(O)c2cc(Br)ccc2sc1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.