Citation:
LIAO Lian-An, LI Zheng-Ming, FANG Hong-Yun, ZHAO Wei-Guang, FAN Zhi-Jin, CHEN Ming-De, LIU Gui-Long. Synthesis and Bioactivity of 5-O-TPS-4"-O-carbonyl Avermectin B1a[J]. Chinese Journal of Applied Chemistry,
;2002, 19(6): 521-526.
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Ten 5-O-triphenylsilyl 4"-O-carbonyl Avermectin B1a were prepared by esterification reaction of 5-O-triphenylsilyl Avermectin B1a with corresponding carboxylic acids in the systems of 1,3-dicyclohexylcarbodiimide (DCC)/4-dimethylaminopyridine(DMAP) in good yield(55%~76%). Their chemical structures were confirmed by IR, 1H NMR, 13C NMR and MS. The preliminary bioa-ssay results showed that some of the title compounds have good insecticidal activities against Aphis gossypii Glover and Tetranychus truncatus Ehara.
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