[EN] APOPTOSIS SIGNAL-REGULATING KINASE INHIBITORS AND USES THEREOF [FR] INHIBITEURS DE KINASE DE RÉGULATION DU SIGNAL DE L'APOPTOSE ET LEURS UTILISATIONS
[EN] APOPTOSIS SIGNAL-REGULATING KINASE INHIBITORS AND USES THEREOF [FR] INHIBITEURS DE KINASE DE RÉGULATION DU SIGNAL DE L'APOPTOSE ET LEURS UTILISATIONS
Enantioface-differentiating (Asymmetric) Hydrogenation of Keto Ester with Modified Nickel Catalyst. XXXII. Structural Requirements of Modifying Reagent and Substrate
作者:Shinji Okamoto、Tadao Harada、Akira Tai
DOI:10.1246/bcsj.52.2670
日期:1979.9
The enantioface-differentiating hydrogenation of α-, β-, γ-, and δ-keto esters over α-, β-, and γ-amino acid–MRNi has been conducted. The optimum enantio-differentiating power of α-amino acid-MRNi has been found in the hydrogenation of the β-keto ester and that of β-amino acid-MRNi found in the hydrogenation of the γ-keto ester. The results have been explained in terms of the intermolecular recognition between substrate and modifying reagent through the functional groups.
Potent Antimicrobial Activity of Lipidated Short α,γ-Hybrid Peptides
作者:Sushil N. Benke、Hirekodathakallu V. Thulasiram、Hosahudya N. Gopi
DOI:10.1002/cmdc.201700370
日期:2017.10.9
Herein we report the potent antimicrobialactivity of α,γ‐hybrid lipopeptides composed of 1:1 alternating α‐ and γ‐amino acids. Along with their potent antimicrobialactivity against various Gram‐positive and Gram‐negative bacteria, these hybrid lipopeptides were found to be less hemolytic. Studies into the mechanism of action revealed that these short cationic lipopeptides bind and disrupt the bacterial
A convenient synthesis of racemic and optically active 1-aza-1,3-dienes derived from γ-amino esters: reduction to α,β-unsaturated and saturated γ-amino acid derivatives
A simple synthesis of racemic and opticallyactive 1-azadienes derived from γ-amino esters by olefination reaction of alkyl glyoxylates and functionalized phosphonium salts or phosphine oxides is reported. Selective reduction of these 1-azadienes with hydrides yields (E)-γ-amino-α,β-unsaturated esters. A simple procedure for the preparation of saturated γ-amino acids and γ-amino esters from the previously
Chiral solute–solvent systems. Selective interaction between N-dodecanoyl-<scp>L</scp>-valine amides and N-trifluoroacetyl esters of the enantiomers of 2-aminoalkan-1-ols and α-, β-, and γ-amino-acids
Optically active 2-aminoalkan-1-ols in the form of their O-acyl-N-trifluoroacetyl derivatives have been resolved by g.l.c. with N-dodecanoyl-L-valine 6-undecylamide (1) as the stationary phase. A bulky O-acyl group substantially facilitates resolution. Resolutions of the N-trifluoroacetyl-esters of α-, β-, and γ-amino-acids on diamide phases are also reported. The order of emergence of the derivatives
The biocatalytic reductive amination of ketone to chiral amine is one of the most challenging reactions. Using a genome-mining approach, we found proteins catalyzing the reductive amination of ketones without a carboxylic function in the α or β position. The synthesis of (4S)-4-aminopentanoic acid (ee ≥99.5%) was achieved with the thermoactive amine dehydrogenase (AmDH) AmDH4 from Petrotoga mobilis