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1.
ChemMedChem ; 17(10): e202100776, 2022 05 18.
Article in English | MEDLINE | ID: mdl-35170857

ABSTRACT

Akt is a protein kinase that has been implicated in the progression of cancerous tumours. A number of covalent allosteric Akt inhibitors are known, and based on these scaffolds, a small library of novel potential covalent allosteric imidazopyridine-based inhibitors was designed. The envisaged compounds were synthesised, with click chemistry enabling a modular approach to a number of the target compounds. The binding modes, potencies and antiproliferative activities of these synthesised compounds were explored, thereby furthering the structure activity relationship knowledge of this class of Akt inhibitors. Three novel covalent inhibitors were identified, exhibiting moderate activity against Akt1 and various cancer cell lines, potentially paving the way for future covalent allosteric inhibitors with improved properties.


Subject(s)
Protein Kinase Inhibitors , Proto-Oncogene Proteins c-akt , Allosteric Regulation , Protein Kinase Inhibitors/chemistry , Protein Kinase Inhibitors/pharmacology , Proto-Oncogene Proteins c-akt/metabolism , Structure-Activity Relationship
2.
Angew Chem Int Ed Engl ; 54(35): 10313-6, 2015 Aug 24.
Article in English | MEDLINE | ID: mdl-26110718

ABSTRACT

Targeting and stabilizing distinct kinase conformations is an instrumental strategy for dissecting conformation-dependent signaling of protein kinases. Herein the structure-based design, synthesis, and evaluation of pleckstrin homology (PH) domain-dependent covalent-allosteric inhibitors (CAIs) of the kinase Akt is reported. These inhibitors bind covalently to a distinct cysteine of the kinase and thereby stabilize the inactive kinase conformation. These modulators exhibit high potency and selectivity, and represent an innovative approach for chemical biology and medicinal chemistry research.


Subject(s)
Protein Kinase Inhibitors/pharmacology , Proto-Oncogene Proteins c-akt/antagonists & inhibitors , Signal Transduction/drug effects , Adenosine Triphosphate/metabolism , Allosteric Regulation , Binding, Competitive , Humans , Models, Molecular
3.
Chem Commun (Camb) ; 48(94): 11507-9, 2012 Dec 07.
Article in English | MEDLINE | ID: mdl-23044537

ABSTRACT

A second polymorphic form of a 1 : 2 : 3 pamoate : DABCO : water salt has been obtained by liquid-assisted grinding, and it is shown that interconversion between this salt and a salt with 1 : 1 : 2 stoichiometry is facile via liquid-assisted grinding with additional amounts of pamoic acid (to generate the 1 : 1 : 2 salt) or DABCO (to generate the 1 : 2 : 3 salt).

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