Asymmetric synthesis of N-protected amino acids by the addition of organolithium carboxyl synthons to ROPHy/SOPHy-derived aldoximes and ketoximesChiral oxime ethers in asymmetric synthesis. Part 6.1
作者:Tracey S. Cooper、Pierre Laurent、Christopher J. Moody、Andrew K. Takle
DOI:10.1039/b310624a
日期:——
hydroxylamines, followed by N-protection, and oxidativecleavage of the carboxyl precursor gave a range of N-protected amino acids and esters. The method was exemplified by the synthesis of a range of derivatives of non-proteinogenic amino acids such as 4-bromophenylalanine, tert-leucine, norvaline, cyclohexyl- and aryl-glycines, 2-amino-8-oxodecanoic acid (Aoda) and alpha-methylvaline.
Asymmetric synthesis of 2-substituted 5-, 6- and 7-membered nitrogen heterocycles by oxime addition ring-closing metathesis
作者:James C. A. Hunt、Pierre Laurent、Christopher J. Moody
DOI:10.1039/b005353h
日期:——
Ring closing metathesis reactions of the dienes 6 and 9 leads to the nitrogen heterocycles 7 and 10, respectively, one of which 10c was converted into (R)-(−)-coniine.