A new alkaloid from Fritillaria ussuriensis Maxim

Pingbeimunone A (1), a new compound, together with the known ussuriedine (2), benzo[7,8]fluoreno[2,1-b]quinolizine cevane-3,6,16,20-tetrol (3), ebeiedinone (4), pingbeimine C (5) and verticine (6) were isolated from Fritillaria ussuriensis. The structure was elucidated on the basis of spectral analysis (IR, NMR and MS spectroscopy). In addition, their AChE inhibitory activities were also tested.

A new alkaloid, pingbeimunone A (1), and five known alkaloids were isolated from the bulbs of Fritillaria ussuriensis Maxim. Their acetylcholinesterase inhibitory activities were also tested.Figure optionsDownload high-quality image (128 K)Download as PowerPoint slide