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Article: Discovery of 4-(4-aminopyrazolo[1,5-a][1,3,5]triazin-8-yl)benzamides as novel, highly potent and selective, orally bioavailable inhibitors of Tyrosine Threonine Kinase, TTK

TitleDiscovery of 4-(4-aminopyrazolo[1,5-a][1,3,5]triazin-8-yl)benzamides as novel, highly potent and selective, orally bioavailable inhibitors of Tyrosine Threonine Kinase, TTK
Authors
KeywordsMonopolar spindle 1 kinase (Mps1)
Tyrosine Threonine Kinase (TTK)
Antimitotic
Cancer
Inhibitor
Issue Date2016
Citation
Bioorganic and Medicinal Chemistry Letters, 2016, v. 26, n. 15, p. 3562-3566 How to Cite?
Abstract© 2016 Elsevier Ltd TTK/Mps1 is a key kinase controlling progression of cell division via participation in the mitotic spindle assembly checkpoint and is overexpressed in a number of human cancers. Herein we report the discovery of 4-(4-aminopyrazolo[1,5-a][1,3,5]triazin-8-yl)benzamides as a potent, novel class of TTK inhibitors. The series was identified by means of bioisosteric replacement of the related imidazopyrazine and imidazopyridazine scaffolds. Optimization led to the identification of compounds with excellent potency (Ki = 0.8 nM) and exceptional kinase selectivity. The SAR indicates a strong dependence of activity on the presence of the N-cyclopropyl-2-methylbenzamide moiety delineating the geometry for 1½ type kinase inhibitor. Molecular modeling indicates the extensive and optimal contacts, mediated through H-bonds and hydrophobic interactions, are responsible for the selectivity and potency of the inhibitors. The compounds demonstrate a strong anti-proliferative activity in a panel of human cancer cell lines (HCT116 GI50 <15 nM) and good rodent pharmacokinetics (oral %F 97%).
Persistent Identifierhttp://hdl.handle.net/10722/292952
ISSN
2023 Impact Factor: 2.5
2023 SCImago Journal Rankings: 0.508
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLaufer, Radoslaw-
dc.contributor.authorLi, Sze Wan-
dc.contributor.authorLiu, Yong-
dc.contributor.authorNg, Grace-
dc.contributor.authorLang, Yunhui-
dc.contributor.authorFeher, Miklos-
dc.contributor.authorBrokx, Richard-
dc.contributor.authorBeletskaya, Irina-
dc.contributor.authorHodgson, Richard-
dc.contributor.authorMao, Guodong-
dc.contributor.authorPlotnikova, Olga-
dc.contributor.authorAwrey, Donald E.-
dc.contributor.authorMason, Jacqueline M.-
dc.contributor.authorWei, Xin-
dc.contributor.authorLin, Dan Chi Chia-
dc.contributor.authorChe, Yi-
dc.contributor.authorKiarash, Reza-
dc.contributor.authorMadeira, Brian-
dc.contributor.authorFletcher, Graham C.-
dc.contributor.authorMak, Tak W.-
dc.contributor.authorBray, Mark R.-
dc.contributor.authorPauls, Henry W.-
dc.date.accessioned2020-11-17T14:57:34Z-
dc.date.available2020-11-17T14:57:34Z-
dc.date.issued2016-
dc.identifier.citationBioorganic and Medicinal Chemistry Letters, 2016, v. 26, n. 15, p. 3562-3566-
dc.identifier.issn0960-894X-
dc.identifier.urihttp://hdl.handle.net/10722/292952-
dc.description.abstract© 2016 Elsevier Ltd TTK/Mps1 is a key kinase controlling progression of cell division via participation in the mitotic spindle assembly checkpoint and is overexpressed in a number of human cancers. Herein we report the discovery of 4-(4-aminopyrazolo[1,5-a][1,3,5]triazin-8-yl)benzamides as a potent, novel class of TTK inhibitors. The series was identified by means of bioisosteric replacement of the related imidazopyrazine and imidazopyridazine scaffolds. Optimization led to the identification of compounds with excellent potency (Ki = 0.8 nM) and exceptional kinase selectivity. The SAR indicates a strong dependence of activity on the presence of the N-cyclopropyl-2-methylbenzamide moiety delineating the geometry for 1½ type kinase inhibitor. Molecular modeling indicates the extensive and optimal contacts, mediated through H-bonds and hydrophobic interactions, are responsible for the selectivity and potency of the inhibitors. The compounds demonstrate a strong anti-proliferative activity in a panel of human cancer cell lines (HCT116 GI50 <15 nM) and good rodent pharmacokinetics (oral %F 97%).-
dc.languageeng-
dc.relation.ispartofBioorganic and Medicinal Chemistry Letters-
dc.subjectMonopolar spindle 1 kinase (Mps1)-
dc.subjectTyrosine Threonine Kinase (TTK)-
dc.subjectAntimitotic-
dc.subjectCancer-
dc.subjectInhibitor-
dc.titleDiscovery of 4-(4-aminopyrazolo[1,5-a][1,3,5]triazin-8-yl)benzamides as novel, highly potent and selective, orally bioavailable inhibitors of Tyrosine Threonine Kinase, TTK-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.bmcl.2016.06.021-
dc.identifier.pmid27335255-
dc.identifier.scopuseid_2-s2.0-84978823913-
dc.identifier.volume26-
dc.identifier.issue15-
dc.identifier.spage3562-
dc.identifier.epage3566-
dc.identifier.eissn1464-3405-
dc.identifier.isiWOS:000380574100033-
dc.identifier.issnl0960-894X-

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