Concise and Diversity-Oriented Route toward Polysubstituted 2-Aminoimidazole Alkaloids and Their Analogues
作者:Denis S. Ermolat'ev、Jitender B. Bariwal、Hans P. L. Steenackers、Sigrid C. J. De Keersmaecker、Erik V. Van der Eycken
DOI:10.1002/anie.201004256
日期:2010.12.3
Alkaloids of the naamine family were synthesized from diverse propargylamines in just two steps (see scheme: R1=Me, R2=substituted benzyl, R3=Ar). Thus, the addition to a propargylamine of a carbodiimide generated in situ, silver(I)‐catalyzed intramolecular hydroamidation, and subsquent deprotection provide access to the heterocyclic core of numerous natural products and biologically active compounds