| 摘要 |
Herbicidal compounds of the formula WHEREIN R is alkyl, cycloalkyl or phenyl substituted with up to 2 fluorine, chlorine, bromine, trifluoromethyl, nitro, lower alkoxy, lower alkyl, or phenoxy, phenylthio or phenylsulfonyl substituted with up to 2 fluorine or chlorine atoms; R1 is hydrogen or alkyl; R2 is alkyl; Z is halogen; Y is hydrogen or Z; and R3 is hydrogen or alkyl.
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