The present invention provides a labelled .beta.-cyano-L-alanine and a .gamma.-cyano-.alpha.-aminobutyric acid, of which cyano group carbon is labelled with radionuclide .sup.11 C or .sup.14 C, or stable isotope .sup.13 C. The present invention also provides a labelled amino acids such as asparagine, asparatic acid, DABA, GABA, glutamine and glutamic acid synthesized by using the labelled .beta.-cyano-L-alanine and the .gamma.-cyano-.alpha.-aminobutyric acid as an intermediate. The labelled amino acids are useful for in vivo imaging of tumors and brain functions.
The invention is related to anti-viral compounds, compositions containing such compounds, and therapeutic methods that include the administration of such compounds, as well as to processes and intermediates useful for preparing such compounds.
The invention is related to anti-viral compounds, compositions containing such compounds, and therapeutic methods that include the administration of such compounds, as well as to processes and intermediates useful for preparing such compounds.
Redox-economical synthesis of α-substituted α-N-phthaloyl amino aldehydes using Fukuyama reduction
作者:Riko Genka、Satoru Arimitsu
DOI:10.1016/j.tetlet.2024.154938
日期:2024.3
A three-step redox-economical synthesis of α-substituted α-N-phthaloyl aldehydes was developed using Fukuyama reduction from commercially available amino acids. The developed method provided various α-substituted α-N-phthaloyl aldehydes (16 entries) in 29–98 % yields. The developed protocol was reproducible on a large scale.