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5-阿维菌素B1a酯的合成及生物活性
Synthesis and Bioactivity of 5-Avermectin B1a Esters
【摘要】 阿维菌素 B1 a(AVB1 a)与羧酸在 DMAP/DCC体系中直接酯化 ,得到 1 0个 5 -AVB1 a酯衍生物 ,产率5 0 %~ 79% ;其化学结构由 IR,1 H NMR,1 3C NMR和 MS谱确证 .生物活性测定结果表明 ,部分 5 -阿维菌素 B1 a酯衍生物具有良好的杀虫、杀螨活性
【Abstract】 Ten 5 Avermectin B 1a ester derivatives were prepared from avermectin B 1a and carboxylic acids in the systems of DCC/DMAP. Their chemical structures were confirmed by IR, 1H NMR, \{ 13 C NMR\} and MS. Their insecticidal activity was evaluated against Aphis gossypii Glover and Tetranychus truncatus Ehara. It was found that some compounds showed a higher insecticidal activity than Avermectin.
【关键词】 5-阿维菌素B1a酯;
生物活性;
酯化;
DMAP/DCC;
【Key words】 Avermectin B 1a; Bioactivity; Esterification; DMAP/DCC;
【Key words】 Avermectin B 1a; Bioactivity; Esterification; DMAP/DCC;
【基金】 国家自然科学重点基金 (批准号 :2 983 2 0 5 0 )资助
- 【文献出处】 高等学校化学学报 ,Chemical Research In Chinese Universities , 编辑部邮箱 ,2002年09期
- 【分类号】O629.9
- 【被引频次】18
- 【下载频次】330