| 摘要 |
Novel herbicidal compounds of the general formula nts an optionally substituted alkyl, alkenyl, cycloalkyl, cycloalkenyl, aryl, heteroaryl, aralkyl or heteroaralkyl group; R1 represents a hydrogen atom or an acyl group; and R2 represents an optionally substituted alkyl, alkenyl, aryl, heteroaryl, aralkyl or heteroaralkyl group.
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