Using OB(O)c1ccsc1, O=C1/C(=N\c2ccc(Br)cc2)c2ccccc2N1c1ccccc1 to produce O=C1/C(=N\c2ccc(-c3ccsc3)cc2)c2ccccc2N1c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.