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BACKGROUND
Herbicides that inhibit 4‐hydroxyphenylpyruvate dioxygenase (HPPD, EC 1.13.11.27) are very important for grass weed control. In order to discover novel HPPD herbicides, a series of triketone 2H‐benzo[b] oxazin‐3(4H)‐one analogs was designed and synthesized.
RESULTS
In comparison with the commercial triketone HPPD herbicide mesotrione (IC50 = 0.252 μM), some of these new triketone analogs...
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