Two New AChE Inhibitors Isolated from Li Folk Herb Heilaohu "Kadsura coccinea" Stems

Sheng Zhuo Huang, Lin Ping Duan, Hao Wang, Wen Li Mei, Hao Fu Dai
2019 Molecules  
Two new triterpenoids, named kadsuricoccins A and B, together with three known ones, were isolated from the Li folk herb Heilaohu, the stems of Kadsura coccinea (Lem.) A. C. Smith, which was used for food and as a healthy supplement. Their structures were elucidated by comprehensive analyses of mass spectrometry (MS) and nuclear magnetic resonance (NMR) spectroscopic data. To search healthy components, an acetylcholinesterase (AChE) inhibitory activity test by Ellman's Method was conducted,
more » ... was conducted, kadsuricoccins A and B showed activity with the AChE inhibit index (AII) up to 68.96% ± 0.19% and 57.8% ± 0.11% at 94 nM (compared with positive control tacrine AII 79.80% ± 0.20%, 9.4 nM), respectively.
doi:10.3390/molecules24193628 fatcat:ggvfqnfs4vby7ke7hsibrdxwli