Structure Elucidation and Synthesis of Lycoposerramine-B, a Novel Oxime-ContainingLycopodiumAlkaloid fromLycopodium serratumThunb.

Abstract
A new alkaloid, lycoposerramine-B (1), containing an oxime function, was isolated from the club moss Lycopodium serratum Thunb. The structure of 1 was elucidated by spectroscopic analysis, including J-resolved HMBC spectroscopy, and confirmed by its synthesis from the known alkaloid, serratinine (3).