Synthesis of Naamidine A and Selective Access to N2-Acyl-2-aminoimidazole Analogues
摘要:
A short and scalable synthesis of naamidine A, a marine alkaloid with a selective ability to inhibit epidermal growth factor receptor (EGFR)-dependent cellular proliferation, has been achieved. A key achievement in this synthesis was the development of a regioselective hydroamination of a monoprotected propargylguanidine to deliver N-3-protected cyclic ene-guanidines. This permits the extension of this methodology to prepare N-2-acyl analogues in a fashion that obviates the troublesome acylation of the free 2-aminoimidazoles, which typically yields mixtures of N-2- and N-2,N-2-diacylated products.
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
Compositions and methods comprising 2-(acylamino)imidazoles
申请人:Curza Global, LLC
公开号:US10493061B2
公开(公告)日:2019-12-03
The present invention presents 2-(acylamino)imidazoles with therapeutic activity, including selective activity against cancer cells, and compositions comprising them. Methods of using and preparing the 2-(acylamino)imidazoles are also presented.