Using O=C1NC(=S)NC12CC(c1ccccc1)Oc1ccc(Br)cc12 to produce O=C1N(Cc2ccccc2)C(SCc2ccccc2)=NC12CC(c1ccccc1)Oc1ccc(Br)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.