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Influence of Pyranose and Spacer Arm Structures on Phloem Mobility and Insecticidal Activity of New Tralopyril Derivatives

文献类型: 外文期刊

作者: Chen, Yao 1 ; Lei, Zhi Wei 3 ; Zhang, Ying 4 ; Yang, Wen 3 ; Liu, Hui Fang 3 ; Zhou, Yu Feng 3 ; Yang, Mao Fa 1 ;

作者机构: 1.Guizhou Univ, Inst Entomol, Guiyang 550025, Guizhou, Peoples R China

2.Guizhou Univ, Guizhou Prov Key Lab Agr Pest Management Mountain, Guiyang 550025, Guizhou, Peoples R China

3.Guizhou Acad Agr Sci, Guizhou Tea Res Inst, Guiyang 550006, Guizhou, Peoples R China

4.Guizhou Acad Agr Sci, Guizhou Inst Plant Protect, Guiyang 550006, Guizhou, Peoples R China

关键词: glucuronic acid;glucose;tralopyril;chlorfenapyr;phloem mobility

期刊名称:MOLECULES ( 影响因子:4.411; 五年影响因子:4.587 )

ISSN:

年卷期:

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收录情况: SCI

摘要: Six new conjugates were designed and synthesized by introducing glucose, methyl glucuronate or glucuronic acid moieties on tralopyril. Phytotoxicity and phloem mobility results demonstrated that the introduction of glucose, methyl glucuronate or glucuronic acid moieties can simultaneously solve the tough phytotoxicity problem and phloem mobility transformation of tralopyril. Conjugates 12 and 18 containing the glucuronic acid moiety exhibited higher phloem mobility than conjugates 9, 11, 15 and 17. Conjugates 15, 17 and 18 with methoxymethyl groups on the tralopyril pyrrole nitrogen atom showed activity against Plutella xylostella, while conjugates 9, 11 and 12 with a methene group on the pyrrole N showed no activity. Cabbage roots were incubated in a buffered solution containing conjugates 15, 17 and 18 at 4 mM for 72 h. Only 18 showed systemic insecticidal activity with 100% mortalityagainst P. xylostella, while 15 and 17 showed lower activity andchlorfenapyr showed no activity. The glucuronic acid promoiety imparted more phloem mobility to tralopyril than glucose and methyl glucuronate. The methoxymethyl group bond on the tralopyril skeleton was the key factor in determining the insecticidal activity of the conjugates. A promising systemic proinsecticide containing glucuronic acid and tralopyril moieties was proposed.

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