Nε-Acryloyllysine Piperazides as Irreversible Inhibitors of Transglutaminase 2: Synthesis, Structure–Activity Relationships, and Pharmacokinetic Profiling
摘要:
Transglutaminase 2 (TGase 2)-catalyzed transamidation represents an important post-translational mechanism for protein modification with implications in physiological and pathophysiological conditions, including fibrotic and neoplastic processes. Consequently, this enzyme is considered a promising target for the diagnosis of and therapy for these diseases. In this study, we report on the synthesis and kinetic characterization of N-acryloyllysine piperazides as irreversible inhibitors of TGase 2. Systematic structural modifications on 54 new compounds were performed with a major focus on fluorine-bearing substituents due to the potential of such compounds to serve as radiotracer candidates for positron emission tomography. The determined inhibitory activities ranged from 100 to 10 000 M-1 s(-1), which resulted in comprehensive structure activity relationships. Structure activity correlations using various substituent parameters accompanied by covalent docking studies provide an advanced understanding of the molecular recognition for this inhibitor class within the active site of TGase 2. Selectivity profiling of selected compounds for other transglutaminases demonstrated an excellent selectivity toward transglutaminase 2. Furthermore, an initial pharmacokinetic profiling of selected inhibitors was performed, including the assessment of potential membrane permeability and liver microsomal stability.
Nε-Acryloyllysine Piperazides as Irreversible Inhibitors of Transglutaminase 2: Synthesis, Structure–Activity Relationships, and Pharmacokinetic Profiling
摘要:
Transglutaminase 2 (TGase 2)-catalyzed transamidation represents an important post-translational mechanism for protein modification with implications in physiological and pathophysiological conditions, including fibrotic and neoplastic processes. Consequently, this enzyme is considered a promising target for the diagnosis of and therapy for these diseases. In this study, we report on the synthesis and kinetic characterization of N-acryloyllysine piperazides as irreversible inhibitors of TGase 2. Systematic structural modifications on 54 new compounds were performed with a major focus on fluorine-bearing substituents due to the potential of such compounds to serve as radiotracer candidates for positron emission tomography. The determined inhibitory activities ranged from 100 to 10 000 M-1 s(-1), which resulted in comprehensive structure activity relationships. Structure activity correlations using various substituent parameters accompanied by covalent docking studies provide an advanced understanding of the molecular recognition for this inhibitor class within the active site of TGase 2. Selectivity profiling of selected compounds for other transglutaminases demonstrated an excellent selectivity toward transglutaminase 2. Furthermore, an initial pharmacokinetic profiling of selected inhibitors was performed, including the assessment of potential membrane permeability and liver microsomal stability.
TRANSGLUTAMINASE TG2 INHIBITORS, PHARMACEUTICAL COMPOSITIONS, AND METHODS OF USE THEREOF
申请人:DOMINGUEZ Celia
公开号:US20150232420A1
公开(公告)日:2015-08-20
Certain compounds and pharmaceutically acceptable salts are provided herein. Also provided are pharmaceutical compositions comprising at least one compound or pharmaceutically acceptable salt therein and one or more pharmaceutically acceptable vehicle. Methods of treating patients suffering from certain disease states responsive to the inhibition of transglutaminase TG2 activity are described. These disease states include neurodegenerative disorders such as Huntington's disease. Also described are methods of treatment include administering at least one compound or pharmaceutically acceptable salt thereof as a single active agent or administering at least one compound or pharmaceutically acceptable salt thereof in combination with one or more other therapeutic agents.
[EN] TRANSGLUTAMINASE TG2 INHIBITORS, PHARMACEUTICAL COMPOSITIONS, AND METHODS OF USE THEREOF<br/>[FR] INHIBITEURS DE TRANSGLUTAMINASE TG2, COMPOSITIONS PHARMACEUTIQUES, ET LEURS PROCÉDÉS D'UTILISATION
申请人:DOMINGUEZ CELIA
公开号:WO2014047288A2
公开(公告)日:2014-03-27
Certain compounds and pharmaceutically acceptable salts are provided herein. Also provided are pharmaceutical compositions comprising at least one compound or pharmaceutically acceptable salt therein and one or more pharmaceutically acceptable vehicle. Methods of treating patients suffering from certain disease states responsive to the inhibition of transglutaminase TG2 activity are described. These disease states include neurodegenerative disorders such as Huntington's disease. Also described are methods of treatment include administering at least one compound or pharmaceutically acceptable salt thereof as a single active agent or administering at least one compound or pharmaceutically acceptable salt thereof in combination with one or more other therapeutic agents.
<i>N</i><sup>ε</sup>-Acryloyllysine Piperazides as Irreversible Inhibitors of Transglutaminase 2: Synthesis, Structure–Activity Relationships, and Pharmacokinetic Profiling
Transglutaminase 2 (TGase 2)-catalyzed transamidation represents an important post-translational mechanism for protein modification with implications in physiological and pathophysiological conditions, including fibrotic and neoplastic processes. Consequently, this enzyme is considered a promising target for the diagnosis of and therapy for these diseases. In this study, we report on the synthesis and kinetic characterization of N-acryloyllysine piperazides as irreversible inhibitors of TGase 2. Systematic structural modifications on 54 new compounds were performed with a major focus on fluorine-bearing substituents due to the potential of such compounds to serve as radiotracer candidates for positron emission tomography. The determined inhibitory activities ranged from 100 to 10 000 M-1 s(-1), which resulted in comprehensive structure activity relationships. Structure activity correlations using various substituent parameters accompanied by covalent docking studies provide an advanced understanding of the molecular recognition for this inhibitor class within the active site of TGase 2. Selectivity profiling of selected compounds for other transglutaminases demonstrated an excellent selectivity toward transglutaminase 2. Furthermore, an initial pharmacokinetic profiling of selected inhibitors was performed, including the assessment of potential membrane permeability and liver microsomal stability.