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  • Title: Synthesis and fungicidal activities of novel indene-substituted oxime ether strobilurins.
    Author: Tu S, Xu LH, Ye LY, Wang X, Sha Y, Xiao ZY.
    Journal: J Agric Food Chem; 2008 Jul 09; 56(13):5247-53. PubMed ID: 18547049.
    Abstract:
    Nineteen novel indene-substituted oxime ether strobilurins, which used an indene group to stabilize the ( E)-styryl group in SYP-Z071 (an unsaturated oxime strobilurin fungicide under development by the Shenyang Research Institute of Chemical Industry), were designed and synthesized. The biological assay results showed that all compounds possessed good or excellent fungicidal activities. It was found that most of the compounds showed higher fungicidal activities against Pyricularia oryzae, Phytophthora infestans, Erysiphe graminis, and Colletotrichum lagenarium than SYP-Z071 at the tested concentration. The biological assay results also indicated that most of the compounds exhibited higher in vivo fungicidal activities against cucumber Pseudoperonospora cubensis and C. lagenarium than the commercial fungicides trifloxystrobin and kresoxim-methyl at a concentration of 6.25 mg/L. Furthermore, it was found that alpha-(methoxyimino)- N-methylphenylacetamide oxime ethers 6m- s exhibited a broad spectrum and remarkably higher activities against all tested fungi. Especially, the 6-methylindene-substituted compound 6p was identified as the most promising candidate for further study.
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