Abstract
Daphnauranins C–E (compounds 1–3), two sesquiterpenoids and one monoterpenoid were isolated from the roots of Daphne aurantiaca Diels. Daphnauranin C is a 9-O-13 etherified and hydroperoxy-substituted guaiane sesquiterpenoid, daphnauranin D is a guaiane sesquiterpenoid ketal, and daphnauranin E is a monoterpenoid lactone. Their structures were elucidated by comprehensive analyses of MS, 1D NMR, and 2D NMR spectroscopic data. In an anti-feeding activities test, daphnauranins C–E showed activity against male fruit fly with anti-feeding indexes (AI) up to 39.1, 39.2, and 27.8% respectively, at 1 mM.
Highlights
With the increase of global population and the changes in food-consumption habits, the food production industry is under unprecedented pressure
To seek new insecticide and insect repellent from natural products, we studied the D. aurantiaca roots and found three new compounds, a
C15 H22 O4 was determined by the HRESIMS ion at m/z 289.1408 [M + Na]+ (calcd for C15 H22 O4 Na, C15H22O4 was determined by the HRESIMS ion at m/z 289.1408 [M + Na]+ (Supplementary Materials), indicative of five degrees of unsaturation
Summary
With the increase of global population and the changes in food-consumption habits, the food production industry is under unprecedented pressure. One of the biggest threats in agriculture are insects, which cause enormous production losses. To solve this problem there is a need for continuous effective prophylaxis and treatment. Traditional herbs have a long history of use as insecticides and insect repellents [2,3]. Natural products have become a treasury to explore for new insecticides or lead compounds with incomparable excellent structural diversity, ecological safety, biodegradability, and sustainability properties [4,5,6,7]. To seek new insecticide and insect repellent from natural products, we studied the D. aurantiaca roots and found three new compounds, a.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
