| 摘要 |
This invention discloses new compounds of the formula <IMAGE> wherein R1 is selected from the group consisting of alkyl, cycloalkyl, alkenyl, haloalkyl, alkoxy, alkylthio, alkylsulfonyl and alkylsulfinyl; R2 is selected from the group consisting of alkyl, alkenyl, haloalkyl and <IMAGE> wherein R3 and R4 are each selected from the group consisting of hydrogen and alkyl; and m is an integer from 0 to 4.
|
