Fig. 5: Application of the N-deletion strategy to other THQ-containing phlegmarine alkaloids.
From: Enantioselective total synthesis of lycoposerramine congeners through late-stage nitrogen deletion

A Total synthesis of lycoposerramine V (5). B Synthesis of 5-epi-lycoposerramine V (5-epi-5). C Synthesis of 15-epi-lycoposerramine W (15-epi-6).