Imazapic, Imazapyr and Imazamox are highly effective, low toxic and environments kindly Imidazolinone herbicides which have not been produced in our country.
甲基咪草烟，灭草烟酸和甲氧咪草烟是高效、低毒、对环境友好的咪唑啉酮类除草剂，国内尚未工业化生产。
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Pyridine-2,3-dicarboxylic anhydride, a key intermediate of the herbicide imazapyr, was synthesized from pyridine-2,3-dicarboxylic acid and anhydride according to the methods in the patents.