Stereospecific synthesis of the enantiomers of nicotinylalanine, a neuroprotecting agent
作者:Roberto Pellicciari、Miguel Angel Gallo-Mezo、Benedetto Natalini、Atef M. Amer
DOI:10.1016/s0040-4039(00)79583-9
日期:1992.5
Stereospecificsynthesis of the title compounds has been achieved in >95% ee by use of palladium-catalyzed cross-coupling of S- and R-(3-benzyloxycarbonyl-5-oxo-4-oxazolidinyl)-acetyl chloride, respectively, with 3-trimethylstannyl pyridine at room temperature.
Use in the prevention and/or in the treatment of neurodegenerative diseases of 2-amino-4-phenyl-4-oxo-butyric acid derivatives which act as kynureninase enzyme inhibitors and/or kynurenine-3-hydroxylase enzyme inhibitors.
Several of these derivatives are new and, as such, constitute a further object of this invention, together with the process for their preparation and the pharmaceutical compositions containing them.
The present invention is directed to a new class of 4-(oxoalkyl)phosphono, 4(oxime alkyl)phosphono, or 4-(hydrazine alkyl)phosphono, 2-piperazine carboxylic derivatives that are useful as NMDA antagonists