Dipeptide Phosphonates as Inhibitors of Dipeptidyl Peptidase IV
作者:Bogdan Boduszek、Jozef Oleksyszyn、Chih-Min Kam、Joe Selzler、Robert E. Smith、James C. Powers
DOI:10.1021/jm00049a016
日期:1994.11
A series of dipeptides which contained phosphonate analogs of proline and piperidine-2-carboxylic acid (homoproline) have been synthesized and tested as inhibitors of DPP-IV. The rates of inhibition of DPP-IV by these compounds are moderate, but the inhibitors are quite specific. The best inhibitor in the series is Ala-Pip(P)(OPh-4-Cl)(2) (13), which has a k(inact) of 0.353 s(-1) and K-I of 236 mu M. The DPP-IV inhibitors Ala-Pro(P)(OPh)(2) (6), Ala-Pro(P)(OPh-4-Cl)(2) (12), and Ala-Pip(P)(OPh-4-Cl)(2) (13) do not inhibit trypsin, human leukocyte elastase (HLE), porcine pancreatic elastase (PPE), adetylcholinesterase, papain, and cathepsin B. However, compounds 12 and 13 inhibited chymotrypsin slowly. Most of these dipeptides containing a homoproline phosphonate residue (Pip(P)) or a Pro phosphonate residue (pro(P)) at the P-1 site are stable in a pH 7.8 buffer with half-lives of several hours to several days. DPP-IV inhibited by 6, 7 (Ala-Pip(P)(OPh)(2)), 12, or 13 is quite stable, and no enzyme activity was recovered after removal of excess inhibitor and incubation buffer for 1 day. Since the phosphonate inhibitors are specific toward DPP-IV and the inhibited enzymes are stable, they should be useful in establishing the biological functions of DPP-IV and may be useful therapeutically in the prevention of the rejection of transplanted tissue.
US5543396A
申请人:——
公开号:US5543396A
公开(公告)日:1996-08-06
[EN] PROLINE PHOSPHONATE DERIVATIVES<br/>[FR] DERIVES DE LA PROLINE PHOSPHONATE
申请人:GEORGIA TECH RESEARCH CORPORATION
公开号:WO1995029691A1
公开(公告)日:1995-11-09
(EN) Peptidyl derivatives of diesters of $g(a)-aminoalkylphosphonic acids, particularly those with proline or related structures, their use in inhibiting serine proteases with chymotrypsin-like, trypsin-like, elastase-like, and dipeptidyl peptidase IV specificity and their roles as anti-inflammatory agents, anticoagulants, anti-tumor agents, and anti-AIDS agents.(FR) L'invention traite de dérivés peptidyle de diesters d'acides $g(a)-aminoalkylphosphoniques, en particulier, ceux présentant une structure proline ou apparentée. L'invention concerne également leur utilisation pour inhiber des sérine protéases avec une spécificité apparentée à la chymotrypsine, à la trypsine, à l'élastase, et propre à la dipeptidyle peptidase IV et leur rôle comme agents anti-inflammatoires, anti-coagulants, anti-tumoraux et anti-SIDA.
A Versatile and Efficient Ligand for Copper-Catalyzed Formation of CN, CO, and PC Bonds: Pyrrolidine-2-Phosphonic Acid Phenyl Monoester
A new and readily available bidentate ligand, namely, pyrrolidine-2-phosphonicacidphenylmonoester (PPAPM), has been developed for the copper-catalyzedformation of C-N, C-O, and P-C bonds, and various N-, O-, and P-arylation products were synthesized in good to excellent yields by using the CuI/PPAPM catalyst system. Addition of the PPAPM ligand greatly increases the reactivity of the copper catalyst