HUDLICKY, M., J. FLUOR. CHEM., 45,(1989) N, C. 120
作者:HUDLICKY, M.
DOI:——
日期:——
HUDLICKY, MILOS;MEROLA, JOSEPH S., TETRAHEDROM LETT., 31,(1990) N1, C. 7403-7406
作者:HUDLICKY, MILOS、MEROLA, JOSEPH S.
DOI:——
日期:——
Stereospecific syntheses of all four stereoisomers of 4-fluoroglutamic acid
作者:M. Hudlický
DOI:10.1016/s0022-1139(00)80034-2
日期:1993.2
(+)-L-threo-4-Fluoroglutamic acid [(+)-(2S, 4S)-fluoroglutamic acid] has been synthesizedstarting with the natural (−)-4-trans-hydroxy-L-proline. Its acetylation at nitrogen followedby esterification with diazomethane afforded methyl 1-acetyl-trans-4-hydroxy-L-prolinatewhich was converted to methyl 1-acetyl-cis-4-fluoro-L-prolinate by means of diethylaminosulfurtrifluoride (DAST) or 2-chloro-1,1,2
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.