Chemistry of 4-fluoroglutamic acid. Part 3. Preparation of the diastereomers of 4-fluoroglutamine and 4-fluoroisoglutamine. An enzymatic access to the antipodes of 4-amino-2-fluorobutyric acid
作者:Vladimı́r Tolman、Petr Sedmera
DOI:10.1016/s0022-1139(99)00188-8
日期:2000.1
The pure diastereomers of 4-fluoroglutamine and 4-fluoroisoglutamine were prepared from the corresponding 4-fluoroglutamic acids. Glutamic decarboxylase treatment of the acids led to chiral 2-fluoroGABA.
New stereospecific syntheses and x-ray diffraction structures of (−)-D-- and (+)-L--4-fluoroglutamic acid
作者:Milos Hudlicky、Joseph S. Merola
DOI:10.1016/s0040-4039(00)88500-7
日期:1990.1
Stereospecific syntheses of (+)-L-threo and (−)-D-erythro-4-fluoroglutamic acid are based on the hydrolysis of methyl 1-acetyl-4-fluoro-L-pyrrolidin-5-one-2-carboxylate, prepared from trans- and cis-4-hydroxyprolines, respectively.