| 摘要 |
This invention relates to herbicidal active compounds and their use. The compounds of this invention correspond to the formula: <IMAGE> wherein R is selected from cyclopropyl, ethyl, furyl, benzyl, methyl, and 3,4-methylenedioxybenzyl; R1 is selected from chloro and trifluoromethyl; R2 is selected from hydrogen, 4-chloro, 4-propargyloxy, and 5-chloro; R3 is selected from ethyl, chloroethyl, isobutyl, allyl and propargyl.
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