Using O=C(c1ccc(Cl)cc1)c1ccc(CBr)cc1, O=c1[nH]c(S)nc2ccccc12 to produce O=C(c1ccc(Cl)cc1)c1ccc(CSc2nc3ccccc3c(=O)[nH]2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.