Bioinspired and Concise Synthesis of (±)‐Stemoamide

Natural inspiration: A concise total synthesis of (±)-stemoamide was completed in eight steps with a 37 % overall yield. A bioinspired N-acyliminium ion cyclization and an unprecedented dynamic ruthenium-catalyzed cyclocarbonylation ensured the high efficiency of the synthesis. A novel silver-mediated cyclization of an allenic alcohol shows potential for the future asymmetric synthesis of the target. TMS=trimethylsilyl.