| 摘要 |
PROBLEM TO BE SOLVED: To provide a compound having excellent herbicidal activity. SOLUTION: The objective compound is expressed by general formula LXXXI (W is O or the like; Y is O or the like; R1 is a 1-3C alkyl or the like; R2 is a 1-3C alkyl; R4 is H or a 1-3C alkyl; X1 is a halogen or the like; X2 is H or a halogen; X3 and X4 are each independently H or the like; (m) is 0 or 1; (n) is 0, 1 or 2; R81 is H, a 1-6C alkyl or the like; and R80 is H, a 1-6C alkyl or the like).
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