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Synthesis and Structure-Activity Relationships of DCLK1 Kinase Inhibitors Based on a 5,11-Dihydro-6H-benzo[e]pyrimido[5,4-b][1,4]diazepin-6-one Scaffold.

ABSTRACT: Doublecortin-like kinase 1 (DCLK1) is a serine/threonine kinase that is overexpressed in gastrointestinal cancers, including esophageal, gastric, colorectal, and pancreatic cancers. DCLK1 is also used as a marker of tuft cells, which regulate type II immunity in the gut. However, the substrates and functions of DCLK1 are understudied. We recently described the first selective DCLK1/2 inhibitor, DCLK1-IN-1, developed to aid the functional characterization of this important kinase. Here we describe the synthesis and structure-activity relationships of 5,11-dihydro-6H-benzo[e]pyrimido[5,4-b][1,4]diazepin-6-one DCLK1 inhibitors, resulting in the identification of DCLK1-IN-1.

SUBMITTER: Ferguson FM 

PROVIDER: S-EPMC8270059 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature

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Synthesis and Structure-Activity Relationships of DCLK1 Kinase Inhibitors Based on a 5,11-Dihydro-6<i>H</i>-benzo[<i>e</i>]pyrimido[5,4-<i>b</i>][1,4]diazepin-6-one Scaffold.

Ferguson Fleur M FM   Liu Yan Y   Harshbarger Wayne W   Huang Ling L   Wang Jinhua J   Deng Xianming X   Capuzzi Stephen J SJ   Muratov Eugene N EN   Tropsha Alexander A   Muthuswamy Senthil S   Westover Kenneth D KD   Gray Nathanael S NS  

Journal of medicinal chemistry 20200709 14

Doublecortin-like kinase 1 (DCLK1) is a serine/threonine kinase that is overexpressed in gastrointestinal cancers, including esophageal, gastric, colorectal, and pancreatic cancers. DCLK1 is also used as a marker of tuft cells, which regulate type II immunity in the gut. However, the substrates and functions of DCLK1 are understudied. We recently described the first selective DCLK1/2 inhibitor, DCLK1-IN-1, developed to aid the functional characterization of this important kinase. Here we describ  ...[more]

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