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==Discovery of a Novel, Highly Potent, and Selective Thieno[3,2-d]pyrimidinone-Based Cdc7 inhibitor with a Quinuclidine Moiety (TAK-931) as an Orally Active Investigational Anti-Tumor Agent== | |||
<StructureSection load='6p5m' size='340' side='right'caption='[[6p5m]], [[Resolution|resolution]] 2.65Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[6p5m]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6P5M OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6P5M FirstGlance]. <br> | |||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=O1S:6-(5-methyl-1H-pyrazol-4-yl)-2-[(pyrrolidin-1-yl)methyl]thieno[3,2-d]pyrimidin-4(3H)-one'>O1S</scene></td></tr> | |||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ROCK2, KIAA0619 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr> | |||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Non-specific_serine/threonine_protein_kinase Non-specific serine/threonine protein kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.1 2.7.11.1] </span></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6p5m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6p5m OCA], [http://pdbe.org/6p5m PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6p5m RCSB], [http://www.ebi.ac.uk/pdbsum/6p5m PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6p5m ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[[http://www.uniprot.org/uniprot/ROCK2_HUMAN ROCK2_HUMAN]] Protein kinase which is a key regulator of actin cytoskeleton and cell polarity. Involved in regulation of smooth muscle contraction, actin cytoskeleton organization, stress fiber and focal adhesion formation, neurite retraction, cell adhesion and motility via phosphorylation of ADD1, BRCA2, CNN1, EZR, DPYSL2, EP300, MSN, MYL9/MLC2, NPM1, RDX, PPP1R12A and VIM. Phosphorylates SORL1 and IRF4. Acts as a negative regulator of VEGF-induced angiogenic endothelial cell activation. Positively regulates the activation of p42/MAPK1-p44/MAPK3 and of p90RSK/RPS6KA1 during myogenic differentiation. Plays an important role in the timely initiation of centrosome duplication. Inhibits keratinocyte terminal differentiation. May regulate closure of the eyelids and ventral body wall through organization of actomyosin bundles. Plays a critical role in the regulation of spine and synaptic properties in the hippocampus.<ref>PMID:10579722</ref> <ref>PMID:15699075</ref> <ref>PMID:16574662</ref> <ref>PMID:17015463</ref> <ref>PMID:19131646</ref> <ref>PMID:19997641</ref> <ref>PMID:21084279</ref> <ref>PMID:21147781</ref> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
In our pursuit of developing a novel, potent, and selective cell division cycle 7 (Cdc7) inhibitor, we optimized the previously reported thieno[3,2-d]pyrimidinone analogue I showing time-dependent Cdc7 kinase inhibition and slow dissociation kinetics. These medicinal chemistry efforts led to the identification of compound 3d, which exhibited potent cellular activity, excellent kinase selectivity, and antitumor efficacy in a COLO205 xenograft mouse model. However, the issue of formaldehyde adduct formation emerged during a detailed study of 3d, which was deemed an obstacle to further development. A structure-based approach to circumvent the adduct formation culminated in the discovery of compound 11b (TAK-931) possessing a quinuclidine moiety as a preclinical candidate. In this paper, the design, synthesis, and biological evaluation of this series of compounds will be presented. | |||
Discovery of a Novel, Highly Potent, and Selective Thieno[3,2-d]pyrimidinone-Based Cdc7 Inhibitor with a Quinuclidine Moiety (TAK-931) as an Orally Active Investigational Antitumor Agent.,Kurasawa O, Miyazaki T, Homma M, Oguro Y, Imada T, Uchiyama N, Iwai K, Yamamoto Y, Ohori M, Hara H, Sugimoto H, Iwata K, Skene R, Hoffman I, Ohashi A, Nomura T, Cho N J Med Chem. 2020 Feb 13;63(3):1084-1104. doi: 10.1021/acs.jmedchem.9b01427. Epub , 2020 Jan 14. PMID:31895562<ref>PMID:31895562</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
[[Category: Hoffman, I | <div class="pdbe-citations 6p5m" style="background-color:#fffaf0;"></div> | ||
[[Category: Skene, R | == References == | ||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Human]] | |||
[[Category: Large Structures]] | |||
[[Category: Non-specific serine/threonine protein kinase]] | |||
[[Category: Hoffman, I D]] | |||
[[Category: Skene, R J]] | |||
[[Category: Anti-tumor]] | |||
[[Category: Inhibitor]] | |||
[[Category: Kinase]] | |||
[[Category: Oral]] | |||
[[Category: Transferase-transferase inhibitor]] | |||
[[Category: Transferase-transferase inhibitor complex]] | |||
Revision as of 13:25, 26 February 2020
Discovery of a Novel, Highly Potent, and Selective Thieno[3,2-d]pyrimidinone-Based Cdc7 inhibitor with a Quinuclidine Moiety (TAK-931) as an Orally Active Investigational Anti-Tumor AgentDiscovery of a Novel, Highly Potent, and Selective Thieno[3,2-d]pyrimidinone-Based Cdc7 inhibitor with a Quinuclidine Moiety (TAK-931) as an Orally Active Investigational Anti-Tumor Agent
Structural highlights
Function[ROCK2_HUMAN] Protein kinase which is a key regulator of actin cytoskeleton and cell polarity. Involved in regulation of smooth muscle contraction, actin cytoskeleton organization, stress fiber and focal adhesion formation, neurite retraction, cell adhesion and motility via phosphorylation of ADD1, BRCA2, CNN1, EZR, DPYSL2, EP300, MSN, MYL9/MLC2, NPM1, RDX, PPP1R12A and VIM. Phosphorylates SORL1 and IRF4. Acts as a negative regulator of VEGF-induced angiogenic endothelial cell activation. Positively regulates the activation of p42/MAPK1-p44/MAPK3 and of p90RSK/RPS6KA1 during myogenic differentiation. Plays an important role in the timely initiation of centrosome duplication. Inhibits keratinocyte terminal differentiation. May regulate closure of the eyelids and ventral body wall through organization of actomyosin bundles. Plays a critical role in the regulation of spine and synaptic properties in the hippocampus.[1] [2] [3] [4] [5] [6] [7] [8] Publication Abstract from PubMedIn our pursuit of developing a novel, potent, and selective cell division cycle 7 (Cdc7) inhibitor, we optimized the previously reported thieno[3,2-d]pyrimidinone analogue I showing time-dependent Cdc7 kinase inhibition and slow dissociation kinetics. These medicinal chemistry efforts led to the identification of compound 3d, which exhibited potent cellular activity, excellent kinase selectivity, and antitumor efficacy in a COLO205 xenograft mouse model. However, the issue of formaldehyde adduct formation emerged during a detailed study of 3d, which was deemed an obstacle to further development. A structure-based approach to circumvent the adduct formation culminated in the discovery of compound 11b (TAK-931) possessing a quinuclidine moiety as a preclinical candidate. In this paper, the design, synthesis, and biological evaluation of this series of compounds will be presented. Discovery of a Novel, Highly Potent, and Selective Thieno[3,2-d]pyrimidinone-Based Cdc7 Inhibitor with a Quinuclidine Moiety (TAK-931) as an Orally Active Investigational Antitumor Agent.,Kurasawa O, Miyazaki T, Homma M, Oguro Y, Imada T, Uchiyama N, Iwai K, Yamamoto Y, Ohori M, Hara H, Sugimoto H, Iwata K, Skene R, Hoffman I, Ohashi A, Nomura T, Cho N J Med Chem. 2020 Feb 13;63(3):1084-1104. doi: 10.1021/acs.jmedchem.9b01427. Epub , 2020 Jan 14. PMID:31895562[9] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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