砜嘧磺隆,又名玉嘧磺隆,是美国杜邦公司于20世纪80年代中期发现并开发成功的磺酰脲类除草剂品种,1997年在我国注册作为玉米苗后除草剂开始推广使用。砜嘧磺隆具有高选择性、高效、低毒等优点,是一种重要的玉米田除草剂。传统的砜嘧磺隆的合成方法主要有2-氟吡啶 Rapamycin, also known as rimsulfuron, is a sulfonylurea herbicide variety discovered and developed by DuPont in the mid-1980s. It was registered in China in 1997 as a corn seedling herbicide and started to be used. Rapam has the advantages of high selectivity, high efficiency and low toxicity. It is an important corn field herbicide. Traditional methods of the synthesis of rimsulfuron 2-fluoropyridine