3-Amino-1-alkyl-cyclopentane carboxamides as small molecule antagonists of the human and murine CC chemokine receptor 2
作者:Gabor Butora、Richard Jiao、William H. Parsons、Pasquale P. Vicario、Hong Jin、Julia M. Ayala、Margaret A. Cascieri、Lihu Yang
DOI:10.1016/j.bmcl.2007.04.053
日期:2007.7
series of low molecular weight antagonists of both the human and murine CC chemokine receptor 2, containing a 1-alkyl-3-(3-methyl-4-spiroindenylpiperidine)-substituted cyclopentanecarboxamide, is described. A SAR study of the C(1) substituent revealed that short, branched alkyl groups such as isopropyl, isobutyl, or cyclopropyl are optimal for both human and murine CCR2 binding activity.
Construction of oxygenated 2-azabicyclo[2.2.1]heptanes <i>via</i> palladium-catalyzed 1,2-aminoacyloxylation of cyclopentenes
作者:Haipin Zhou、Rui Pan、Menghua Xu、Jiao Ma、Aijun Lin、Hequan Yao
DOI:10.1039/d2cc06581a
日期:——
Herein, we describe a palladium-catalyzed 1,2-aminoacyloxylation of cyclopentenes to synthesize oxygenated 2-azabicyclo[2.2.1]heptanes. This reaction proceeds efficiently with a broad array of substrates. The products could be further functionalized to build up a library of bridged aza-bicyclic structures.
Construction of 2‐Azabicyclo[2.2.1]heptenes via Selenium‐Catalyzed Intramolecular Oxidative Amination of Cyclopentenes
作者:Jiao Ma、Liuli Dong、Jiarong Yao、Aijun Lin、Hequan Yao
DOI:10.1002/adsc.202300200
日期:2023.6.20
A selenium-catalyzed intramolecular oxidative amination of cyclopentenes has been described. A variety of 2-azabicyclo[2.2.1]heptenes were obtained with 58%–96% yields. This protocol was featured with mild reaction conditions and broad substrate scope. The subsequent modification of the bicyclic backbone and amino group further demonstrated the application value of this aza-bridged ring.