A New Insecticidal Lignan Glucoside from Galium verum
2017
Chen, Jia | Zhao, Chun-Chao | Shao, Jian-Hua | Fan, Ju-Di | Huang, Xu-Hua
A new lignan glucoside, galiveroside A (1), and seven known compounds (2–8), were isolated from Galium verum L. The structure of 1 was elucidated on the basis of extensive spectroscopic analyses. Compound 1, at the concentration of 5 mg/mL, showed insecticide activity to 3 age cotton bollworm with a mortality of 16.3% through stomach poisoning. When combined with a recombinant scorpion toxin rLqh IT-1, a better stomach toxicity was shown, and the corrected mortality rate increased to 36.6%.
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