Synthesis of <i>trans</i>-(3<i>S</i>)-Amino-(4<i>R</i>)-alkyl- and -(4<i>S</i>)-Aryl-piperidines via Ring-Closing Metathesis Reaction
作者:X. Eric Hu、Nick K. Kim、Benoit Ledoussal
DOI:10.1021/ol027019m
日期:2002.12.1
stereochemistry was controlled using a protected D-serine as a starting material. Stereoselective hydrogenation of allylamines provided trans-(3S)-amino-(4R)-alkyl- and -(4S)-aryl-piperidines. This procedure presents the first method for the asymmetric synthesis of 4-substituted 3-amino piperidines.
Discovery of (3<i>S</i>)-Amino-(4<i>R</i>)-ethylpiperidinyl Quinolones as Potent Antibacterial Agents with a Broad Spectrum of Activity and Activity against Resistant Pathogens
作者:X. Eric Hu、Nick K. Kim、Jeffrey L. Gray、Ji-In K. Almstead、William L. Seibel、Benoit Ledoussal
DOI:10.1021/jm030272n
日期:2003.8.1
conformation analysis and synthesized by applying a conventional coupling reaction of the quinolone nuclei with new piperidine side chains. These compounds were tested in MIC assays and found to be highly potent against Gram-positive and Gram-negative organisms. In particular, the new compounds exhibited high activity against the resistant pathogens Staphylococcus aureus (MRCR) and Streptococcus pneumoniae