Enantioselective Total Synthesis of the Polycyclic Guanidine‐Containing Marine Alkaloid (−)‐Batzelladine D

Addressing the marine core: The enantioselective total synthesis of the polycyclic guanidine-containing marine alkaloid (−)-batzelladine D has been accomplished using a convergent 14-step reaction sequence (longest linear sequence) in 10 % overall yield. The ability to accomplish the selective homolytic cleavage of an alkyl iodide in the presence of an azide circumvents the necessity for nitrogen-protecting groups.