Synthesis of α-Aminophosphonates by Umpolung-Enabled Cu-Catalyzed Regioselective Hydroamination
作者:Shogo Nakamura、Soshi Nishino、Koji Hirano
DOI:10.1021/acs.joc.2c02632
日期:2023.1.20
A copper-catalyzed regioselective hydroamination of α,β-unsaturated phosphonates has been developed to form corresponding α-aminophosphonates of interest in medicinal chemistry. The introduction of an umpolung, electrophilic amination strategy with the hydroxylamine derivative is the key to achieving the α-amination regioselectivity, which is otherwise difficult under the conventional nucleophilic
Solution-Phase Synthesis of Novel Linear Oxyamine Combinatorial Libraries with Antibacterial Activity
作者:Pei-Pei Kung、Ramesh Bharadwaj、Allister S. Fraser、Daniel R. Cook、Andrew M. Kawasaki、P. Dan Cook
DOI:10.1021/jo971655u
日期:1998.3.1
Use of solution phase combinatorial library synthesis led to the discovery of several oxyamine-containing antibacterial compounds. Solution-phase simultaneous addition of meta-substituted benzyl bromides and "fix-last" combinatorial strategies were used to prepare libraries. Additional structure-activity relationship studies were conducted by reductive cleavage of the oxyamine moiety and led to loss of antibacterial activity. Several single compounds were designed and synthesized on the basis of library screening results and were shown to have antibacterial activity.