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J Integr Plant Biol, 1992, 34 (10): -, Research Article
Structural Identification of Kupitengester 2, 3 and 4
Wang Guo-liang, Nan Peng, Nan Yu-sheng, Gong Fu-jun, Lu Ling-xian, Ke Zhi-guo, Zhu Xin-qiang, Yuan Xiao and Yuan Ping
doi:
Abstract
Angled bittersweet (Celastrus angulatus Maxim.) possesses obvious antifeedant effect to Aulacophora femoralis and Pieris rapae. It is a new resource of insect antifeedant. Four needie crystals were isolated from the active fraction of its seed oil by chromatography based on activity assays. Their chemical structures were identified by IR, UV, MS, 1H-NMR, DEPT, 1H-1H-COSY and NOESY. They were sesquJterpene polyesters with β-dihydroagarofurane skeletons. They were new compound reported for the first time.
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