(2R, 3S)- and (2S, 3R)-2-Benzyl-3,4-epoxybutanoic acid as highly efficient and fast acting pseudomechanism-based inactivators for carboxypeptidase a: design, asymmetric synthesis and inhibitory kinetics
摘要:
2-Benzyl-3,4-epoxybutanoic acid (BEBA) was studied as an irreversible inhibitor for the zinc-containing protease, carboxypeptidase A. Of four possible stereoisomers, those having a 2R,3S- and a 2S,3R-configuration inhibited carboxypeptidase A in a time dependent manner. The latter compound that belongs to the D series is more effective with a k(inact)/K-i value of 139.5 dm(3) mol(-1) s(-1) than the former having a K-inact/K-i value of 53.9 dm(3) mol(-1) s(-1). Partition ratios, fore (2R,3S)- and (2S,3R)-BEBA were determined as 1.01 and 0.53, respectively. The observed kinetic parameters reveal that both are highly efficient and fast acting pseudomechanism-based inactivators for carboxypeptidase A. Details of the kinetic analyses, design principles and asymmetric syntheses of these inactivators are described.
A new, short and efficient synthesis of both enantiomers of carnitine
作者:F.D. Bellamy、M. Bondoux、P. Dodey
DOI:10.1016/s0040-4039(00)88555-x
日期:1990.1
A short, efficient and enantioselective synthesis of both (R) and (S) enantiomers of carnitine is reported starting with (R) or (S) malic acid and involving a chemoselective reduction step.
[EN] COMBINATIONS COMPRISING BIPHENYL DERIVATIVES FOR USE IN THE TREATMENT OF HCV<br/>[FR] ASSOCIATIONS COMPRENANT DES DÉRIVÉS DE BIPHÉNYLE DESTINÉES À ÊTRE UTILISÉES POUR LE TRAITEMENT DU VIRUS DE L'HÉPATITE C
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2015009744A1
公开(公告)日:2015-01-22
The present disclosure is generally directed to antiviral compounds, and more specifically directed to combinations of compounds which can inhibit the function of the NS5A protein encoded by Hepatitis C virus (HCV), compositions comprising such combinations, and methods for inhibiting the function of the NS5A protein.