Backbone-fluorinated gamma-amino acids are novel shape-controlled building blocks that have potential utility in a variety of biological contexts. However, their synthesis poses challenges in terms of chemo-, regio- and stereoselectivity, and this has proven to be the major bottleneck in the ongoing development of their various biological applications. To address this problem, several new synthetic
Synthesis of difluorinated β- and γ-amino acids: Investigation of a challenging deoxyfluorination reaction
作者:Zhiyong Wang、Luke Hunter
DOI:10.1016/j.jfluchem.2012.06.016
日期:2012.11
Backbone-homologated amino acids containing the vicinal difluoride motif have been synthesised in a highly stereoselective manner. The key synthetic transformation is the DeoxoFluor (R)-mediated fluorination of a vicinal fluorohydrin. The synthetic route is amenable to the production of all possible stereoisomers of alpha,beta-difluoro-gamma-aminobutyric acid. In addition, a novel difluoromethyl-substituted beta-amino acid is accessed via an unexpected rearrangement process. (C) 2012 Elsevier B.V. All rights reserved.