331846-97-0Relevant articles and documents
Improved enzymatic syntheses of valuable β-arylalkyl-β-amino acid enantiomers
Tasnadi, Gabor,Forro, Enik,Fueloep, Ferenc
experimental part, p. 793 - 799 (2010/06/20)
The enantioselective (E~ 200) Burkholderia cepacia-catalysed hydrolyses of β-amino esters with H2O (0.5 equiv.) in t-BuOMe or in i-Pr2O at 45 °C are described. The enantiomers of biologically relevant β-arylalkyl-substituted β-amino acids, and especially (R)-3-amino-3-(2,4,5-trifluorophenyl)butanoic acid, the intermediate of the new antidiabetic drug sitagliptine, were prepared with high enantiomeric excesses (ee≥96%) and in good yields (≥42%). The Royal Society of Chemistry 2010.
N-, α-, and β-substituted 3-aminopropionic acids: Design, syntheses and antiseizure activities
Tan,Wainman,Weaver
, p. 113 - 121 (2007/10/03)
A treatment for epilepsy is proposed based on analogues of 3-aminopropionic acid (β-alanine), a putative neurotransmitter in the central nervous system (CNS). A model three point pharmacophore was proposed based on modelling data obtained from the study of antagonists for both the glial γ-aminobutyric acid (GABA)-uptake site and the glycine co-agonist site of N-methyl-D-aspartate (NMDA) receptor. Three series of 3-aminopropionic acids containing, N-, α-, and β-substituents, were designed and synthesized to probe the position and the size of a lipophilic binding pocket within the proposed pharmacophore. These analogues were tested in vivo for both their antiseizure activities and their neurologic toxicities. Among the fourteen novel 3-aminopropionic acids synthesized, eight were found to have promising antiseizure activity. This study shows that substitution on the N-terminus confers the greatest antiseizure activity, particularly against pilocarpine-induced seizures.