Lycoplanines B-D,Three Lycopodium Alkaloids from Lycopodium complanatum

摘要

A novel Ci7N Lycopodium alkaloid(LA),lycoplanine B(1),containing an unusual formyl group,along with two new LAs,lycoplanines C(2)and D(3),were isolated from the whole plant of Lycopodium complanatum.Their structures were elucidated by extensive NMR techniques,including 1D-and 2D-NMR experiments,as well as comparing their spectral data with those of the known analogues.A possible biogenetic pathway for 1 was also proposed.