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Study on Tonghaosu and Its Analogs:Isolation,Structure Identification and Synthesis of Antifeedant B-ring-homo-tonghaosu

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【Author】 CHEN, Lia,b YIN, Biao-Lina XU, Han-Hongb CHIU, Ming-Huac WU, Yu-Lin*,a a State Key Laboratory of Bio-organic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China b Laboratory of Insect Toxicology, South China Agricultural University, Guangzhou, Guangdong 510642, China c State Key Laboratory of Phytochemistry & Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650204, China

【机构】 State Key Laboratory of Bio-organic & Natural Products Chemistry； Shanghai Institute of Organic Chemistry； Chinese Academy of Sciences； Laboratory of Insect Toxicology； South China Agricultural University； Guangzhou； State Key Laboratory of Phytochemistry & Plant Resources in West China； Kunming Institute of Botany； Chinese Academy of Sciences Shanghai 200032； China； Shanghai 200032； Guangdong 510642； Kunming； Yunnan 650204； China；

【Abstract】 The methanolic extract from a Chinese endemic Chrysanthemum plant, Dendranthema indicum var. aromaticum, was found to show high antifeeding activity against Pieris brassicae L., and by bioassay-guided separation, the ac-tive component, B-ring-homo-tonghaosu, 2-(2’,4’-hexadiynylidene)-1,6-dioxaspiro-[4,5]-dec-3-ene (2) was isolated. Its structure was elucidated by comparing its spectroscopic data with those of 2 reported in the literatures. Further-more new convenient total synthesis methods of B-ring-homo-tonghaosu were also developed to confirm its struc-ture and make its further application in crop protection available. In addition, extensive comparison of spectroscopic data showed that the structure of compound 21 reported in literature should be revised to 2.更多还原

【关键词】 spiroketal； B-ring-homo-tonghaosu； Dendranthema indicum var. aromaticum； Pieris brassicae； an-tifeedant；
【Key words】 spiroketal； B-ring-homo-tonghaosu； Dendranthema indicum var. aromaticum； Pieris brassicae； an-tifeedant；

【基金】 the National Natural Science Foundation of China (Grant Nos. 29672083, 20072043), Chinese Academy of Sciences, the State Ministry of Science and Technology (No. G2000077502), Shanghai Committee of Science and Technology and the

【文献出处】 Chinese Journal of Chemistry ,中国化学(英文版) , 编辑部邮箱 ,2004年01期

【分类号】O621
【被引频次】3
【下载频次】16

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