Amflutizole is a xanthine oxidase inhibitor used for the treatment of gout. ==Synthesis== The tosyl oxime of the meta-trifluromethyl benzoic acid acid cyanide is the reactamt. This is cross reacted with ethyl 2-mercaptoacetate in the presence of a base; displacement of the tosylate by mercaptide leads to the formation of the heterocyclic N–S bon...