Cermizine D (1) is a cernuane-type Lycopodium alkaloid of the quinolizidine family. Along with cermizines A–C (Fig. 1), cermizine D was isolated and structurally elucidated in 2004, by Kobayashi and collaborators from the club mosses Lycopodium cernuum and Lycopodium chinense. 1 The same group performed bioactivity studies and reported that cermizine D (1) exhibited cytotoxicity against murine lymphoma L1210 cells, with a IC50 of 7.5 μg/mL (30 μM). Related cermizine alkaloids have attracted the attention of a number of laboratories. 2