Synthesis of fluorescent enone derived α-amino acids
作者:Lindsay S. Fowler、David Ellis、Andrew Sutherland
DOI:10.1039/b912782h
日期:——
The development of a facile and general method for the preparation of enone derived α-amino acids is described. The key step involves a HornerâWadsworthâEmmons reaction between an aspartic acid derived β-keto phosphonate ester and a range of aldehydes resulting in the formation of highly functionalised α-amino acids in good yields. An efficient two-stage deprotection process using mild conditions was developed to give the parent α-amino acids. Application of this methodology has produced a novel fluorescent α-amino acid that has potential as a biological marker.
Synthesis and Fluorescent Properties of β-Pyridyl α-Amino Acids
作者:Alexander H. Harkiss、Jonathan D. Bell、Astrid Knuhtsen、Andrew G. Jamieson、Andrew Sutherland
DOI:10.1021/acs.joc.9b00036
日期:2019.3.1
class of β-pyridyl α-amino acid is described using a highly regioselective, ytterbium-catalyzed hetero-Diels–Alder reaction of enones with vinyl ethers followed by a modified Knoevenagel–Stobbe reaction as the key heterocycle forming steps. Investigation of the properties and applications of these amino acids showed that they could be utilized in solid phase peptide synthesis for the preparation of a