Keywords sulfonylureas herbicide;acetohydroxyacid synthase;isoxazolidinone;2-thiohydantoin;structure-active relationship;herbicidal activity;isocyanate;

• 磺酰脲类除草剂;乙酰乳酸合成酶;构效关系;异恶唑酮;乙内酰基硫脲;除草活性;异氰酸酯;