Using COC(=O)C(Br)c1ccc(Cl)cc1, Nc1c(S)ccc2ccccc12 to produce O=C1Nc2c(ccc3ccccc23)SC1c1ccc(Cl)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.