Structure–Activity Relationships of Potent, Targeted Covalent Inhibitors That Abolish Both the Transamidation and GTP Binding Activities of Human Tissue Transglutaminase
摘要:
Human tissue transglutaminase (hTG2) is a multifunctional enzyme. It is primarily known for its calcium dependent transamidation activity that leads to formation of an isopeptide bond between glutamine and lysine residues found on the surface of proteins, but it is also a GTP binding protein. Overexpression and unregulated hTG2 activity have been associated with numerous human diseases, including cancer stem cell survival and metastatic phenotype. Herein, we present a series of targeted covalent inhibitors (TCIs) based on our previously reported Cbz-Lys scaffold. From this structure activity relationship (SAR) study, novel irreversible inhibitors were identified that block the transamidation activity of hTG2 and allosterically abolish its GTP binding ability with a high degree of selectivity and efficiency (k(inact)/K-I > 10(5) M-1 min(-1)). One optimized inhibitor (VA4) was also shown to inhibit epidermal cancer stem cell invasion with an EC50 of 3.9 mu M, representing a significant improvement over our previously reported "hit" NC9.
[EN] SUBSTITUTED PIPERAZINES, (1,4) DIASZEPINES, AND 2,5-DIAZABICYCLO (2.2.1) HEPTANES AS HISTAMINE H1 AND/OR H3 ANTAGONISTS OR HISTAMINE H3 REVERSE ANTAGONISTS<br/>[FR] PIPERAZINES, (1,4) DIAZEPINES, ET 2,5-DIAZABICYCLO (2.2.1) HEPTANES SUBSTITUES EN TANT QU'ANTAGONISTES DE L'HISTAMINE H1 ET/OU H3 OU ANTAGONISTES INVERSES DE L'HISTAMINE H3
申请人:GLAXO GROUP LTD
公开号:WO2004035556A1
公开(公告)日:2004-04-29
The present invention relates to novel piperazine and azepine derivatives having pharmacological activity, processes for their preparation, to compositions containing them and to their use in the treatment of neurodegenerative disorders including Alzheimer's disease.
Cross Coupling of Acyl and Aminyl Radicals: Direct Synthesis of Amides Catalyzed by Bu4NI with TBHP as an Oxidant
作者:Zhaojun Liu、Jie Zhang、Shulin Chen、Erbo Shi、Yuan Xu、Xiaobing Wan
DOI:10.1002/anie.201108763
日期:2012.3.26
A radical solution: A Bu4NI/tert‐butyl hydroperoxide (TBHP) catalyzed synthesis of amides through a cross‐coupling reaction between acyl and aminyl radicals is described. This method involves the combination of aldehyde CH bond functionalization and decarbonylation of N,N‐disubstituted formamides (see scheme). The cross‐coupling is metal‐free, has a wide substrate scope, operational simplicity, and
自由基溶液:描述了Bu 4 NI /叔丁基过氧化氢(TBHP)通过酰基和氨基自由基之间的交叉偶联反应催化的酰胺合成。该方法涉及醛CH键官能化和N,N-二取代甲酰胺的脱羰作用的组合(请参见方案)。交叉耦合是无金属的,具有广泛的基片范围,操作简便,并且按比例放大可提供高产量。
SUBSTITUTED PIPERAZINES, (1,4) DIAZEPINES, AND 2,5-DIAZABICYCLO (2.2.1) HEPTANES AS HISTAMINE H1 AND/OR H3 ANTAGONISTS OR HISTAMINE H3 REVERSE ANTAGONISTS
申请人:Ancliff Rachael
公开号:US20100075953A1
公开(公告)日:2010-03-25
The present invention relates to novel piperazine and azepine derivatives having pharmacological activity, processes for their preparation, to compositions containing them and to their use in the treatment of neurodegenerative disorders including Alzheimer's disease.
[EN] ARYLACETYL INHIBITORS OF TG2 AND USES THEREOF<br/>[FR] INHIBITEURS ARYLACÉTYLE DE TG2 ET LEURS UTILISATIONS
申请人:UNIV OTTAWA
公开号:WO2022213198A1
公开(公告)日:2022-10-13
There are provided Tissue Transglutaminase (TG2) inhibitor compounds, and compositions and methods of use thereof for the prevention or treatment of a disease state mediated by TG2, such as a cancer, a neurodegenerative disease such as Huntington's disease, fibrosis, or Celiac disease. Compounds of Formula I, and pharmaceutically acceptable salts thereof, are provided: Formula (I)