Synthesis and Characterization of Novel 4-Methyl-3-isoxazolidinone Derivatives

A novel type of acetohydroxyacid synthase inhibitors, 4-methyl-3-isoxazolidinone derivatives of sulfonylurea, was designed and synthesized. The structures of these compounds were confirmed by using MS, NMR, and elemental analysis. The results of preliminary active tests indicate that the compounds show a herbicidal activity.