1. Daphnauranins A and B, two new antifeedants Isolated from Daphne aurantiaca roots.
- Author
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Huang, Sheng-Zhuo, Ma, Qing-Yun, Kong, Fan-Dong, Guo, Zhi-Kai, Wang, Qi, Dai, Hao-Fu, Liu, Yu-Qing, Zhou, Jun, and Zhao, You-Xing
- Subjects
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ALTERNATIVE medicine , *PHYSICAL & theoretical chemistry , *INSECTICIDES , *LIGNANS , *MASS spectrometry , *MEDICINAL plants , *NUCLEAR magnetic resonance spectroscopy , *PLANT roots , *PLANT extracts , *DESCRIPTIVE statistics - Abstract
Daphnauranins A ( 1 ) and B ( 2 ), two sesquiterpenoids were isolated from the roots of Daphne aurantiaca Diels. One is an unprecedented 5/7 oxacycloheptane ring system, the other is a sesquiterpene-lignan complex. Their structures were elucidated by comprehensive spectroscopic methods including MS and NMR. Their absolute configurations were further confirmed by the quantum ECD calculations. Daphnauranins A and B showed anti-insect activities against male fruit fly with anti-feeding rate up to 46.2 ± 7.1 and 44.7 ± 5.4% at 1 mM, respectively. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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