Author:
Zhou Hao-Ran,Lin Li-Wu,Li Zhong-Rong,Peng Xing-Rong,Qiu Ming-Hua
Abstract
AbstractFour undescribed pyrethrins C-F (1–4) as well as four known pyrethrins (5–8) were isolated from seeds of Pyrethrumcinerariifolium Trev. The structures of compounds 1–4 were elucidated by UV, HRESIMS, and NMR (1H and 13C NMR, 1H-1H COSY, HSQC, HMBC and ROESY), among which the stereostructure of compound 4 was determined by calculated ECD. Furthermore, compounds 1–4 were evaluated for their aphidicidal activities. The insecticidal assay results showed that 1–4 exhibited moderate aphidicidal activities at the concentration of 0.1 mg/mL with the 24 h mortality rates ranging from 10.58 to 52.98%. Among them, pyrethrin D (2) showed the highest aphidicidal activity, with the 24 h mortality rate of 52.98%, which was slightly lower than the positive control (pyrethrin II, 83.52%).
Graphical Abstract
Funder
the Key Research and Development Program of Yunnan Province, China
Cooperation Project with DR PLANT Company
Publisher
Springer Science and Business Media LLC
Subject
Organic Chemistry,Plant Science,Pharmacology,Toxicology,Biochemistry,Food Science,Analytical Chemistry
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