63393-59-9Relevant articles and documents
Direct Synthesis of Free α-Amino Acids by Telescoping Three-Step Process from 1,2-Diols
Inada, Haruki,Shibuya, Masatoshi,Yamamoto, Yoshihiko
, p. 709 - 713 (2019/01/25)
A practical telescoping three-step process for the syntheses of α-amino acids from the corresponding 1,2-diols has been developed. This process enables the direct synthesis of free α-amino acids without any protection/deprotection step. This method was also effective for the preparation of a 15N-labeled α-amino acid. 1,2-Diols bearing α,β-unsaturated ester moieties afforded bicyclic α-amino acids through intramolecular [3 + 2] cycloadditions. A preliminary study suggests that the resultant α-amino acids are resolvable by aminoacylases with almost complete selectivity.
Enzymatic resolution of N-acetyl-homophenylalanine with mammalian kidney acetone powders
Regla, Ignacio,Luna, Hector,Perez, Herminia I.,Demare, Patricia,Bustos-Jaimes, Ismael,Zaldivar, Victor,Calcagno, Mario L.
, p. 1285 - 1288 (2007/10/03)
Kidney acetone powders (KAP) from beef, dog, hog, rat, and sheep have been evaluated for resolving N-acetyl-DL-homophenylalanine. We also propose a simple protocol for the preparation of both enantiomers of homophenylalanine by enzymatic resolution using mammalian KAP. The beef kidney afforded the best results, rendering the highest isolated yields, 37.5% and 41% and enantiomeric excesses of 94% and 99% for both D-N-Ac-homophenylalanine and L-homophenylalanine, respectively.
Studies on angiotensin converting enzyme inhibitors. VI. Synthesis and angiotensin converting enzyme inhibitory activities of the dicarboxylic acid derivative of imidapril and its diastereoisomers
Kubota,Nunami,Hayashi,Hashimoto,Ogiku,Matsuoka,Ishida
, p. 1619 - 1622 (2007/10/02)
All possible diastereoisomers of the dicarboxylic acid (10a), the biologically active form of imidapril (1), were synthesized, and their inhibitory activity against angiotensin converting enzyme (ACE) was examined. The in vitro ACE inhibitory activity of these compounds greatly depended on the configurations of the three asymmetric carbons in each molecule. The (S,S,S) isomer (10a) showed much more potent activity than the others.