| 摘要 |
Compounds of the formulae <IMAGE> are disclosed wherein R is hydrogen, halogen, phenyl, phenyl-C1 to C4 alkylthio, C1 to C6 alkylthio, C5 to C7 cycloalkylthio, phenylthio or phenylsulfonyl; R1 is amino, C5 to C7 cycloalkylamino, C1 to C6 alkylamino, C1 to C4-alkoxy-substituted-phenyl-(C1 to C4-alkylamino), phenylamino, naphthylamino, furfurylamino, phenyl-(C1 to C4)-alkylamino, phenylamino-substituted by C1 to C4 alkoxy, halogen or C1 to C4 alkyl or phenylsulfonyl. R2 is hydrogen; and R3 is C1 to C6 alkyl, alkoxy or phenyl. The compounds have herbicidal properties. |
