(接上期)7.五氟磺草胺原药制备方法三,申请号CN200580008010,发明名称为制备N-([1,2,4]三唑并嘧啶-2-基)芳基磺酰胺的改进方法,申请日2005年3月24日。授权的技术方案为:制备通式I的N-([1,2,4]三唑并嘧啶-2-基)芳基磺酰胺的改进方法: (Accession period) 7. Preparation method of the original penoxsulam drug III. Application No. CN200580008010, entitled "Preparation of N - ([1,2,4] triazolopyrimidin-2-yl) arylsulfonamide Method, application date March 24, 2005. An authorized technical solution is: Preparation of N - ([1,2,4] triazolopyrimidin-2-yl) arylsulfonamides of general formula I: