The totalsyntheses of cyclic nitrone-containing phlegmarine-type Lycopodium alkaloids, lycoposerramines-X and -Z, were accomplished starting from (R)-3-methylcyclohexanone via Pd-catalyzed Suzuki−Miyaura coupling, Johnson−Claisen rearrangement, stereoselective hydroboration−oxidation reaction, and Mitsunobu reaction, thereby establishing the structures including the absolute configuration.