| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a specific inhibitor of brassinosteroid biosynthesis. <P>SOLUTION: The plant growth regulator includes a compound represented by formula (I) (wherein, R<SB POS="POST">1</SB>and R<SB POS="POST">2</SB>denote a hydrogen atom or the like; R<SB POS="POST">3</SB>and R<SB POS="POST">4</SB>denote a phenyl group which may have a substituent or the like; R<SB POS="POST">5</SB>denotes a heteroaryl group including a nitrogen atom; X denotes a single bond or the like; and Y denotes an oxygen atom or the like) or its salt as an active constituent. <P>COPYRIGHT: (C)2013,JPO&INPIT |
