Abstract
Cyclin-dependent kinases 4/6 play an important role in regulation of cell cycle, and overexpress in a variety of cancers. Up to now, new CDK inhibitors still need to be developed due to its poor selectivity. Herein we report a novel series of 4-(2,3-dihydro-1H-benzo[d]pyrrolo[1,2-a]imidazole-7-yl)-N-(5-(piperazin-1-ylmethyl)pyridine-2-yl)pyrimidin-2-amine anologues as potent CDK 4/6 inhibitors based on LY2835219 (Abemaciclib). Compound 10d, which exhibits approximate potency on CDK4/6 (IC50 = 7.4/0.9 nM), has both good pharmacokinetic characters and high selectivity on CDK1 compared with LY2835219. Overall, compound 10d could be a promising candidate and a good starting point as anticancer drugs.
Keywords:
Abemaciclib; Anticancer; CDK1; CDK4/6 inhibitors; Potent; Selective.
Copyright © 2018 Elsevier Ltd. All rights reserved.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Antineoplastic Agents / chemical synthesis
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Antineoplastic Agents / chemistry
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Antineoplastic Agents / pharmacology*
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Cell Line, Tumor
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Cell Proliferation / drug effects
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Cyclin-Dependent Kinases / antagonists & inhibitors*
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Cyclin-Dependent Kinases / metabolism
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Dose-Response Relationship, Drug
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Drug Design*
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Drug Screening Assays, Antitumor
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Humans
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Imidazoles / chemical synthesis
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Imidazoles / chemistry
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Imidazoles / pharmacology*
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Molecular Structure
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Piperazines / chemical synthesis
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Piperazines / chemistry
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Piperazines / pharmacology*
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Protein Kinase Inhibitors / chemical synthesis
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Protein Kinase Inhibitors / chemistry
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Protein Kinase Inhibitors / pharmacology*
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Pyridines / chemical synthesis
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Pyridines / chemistry
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Pyridines / pharmacology*
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Pyrimidines / chemical synthesis
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Pyrimidines / chemistry
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Pyrimidines / pharmacology*
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Pyrroles / chemical synthesis
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Pyrroles / chemistry
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Pyrroles / pharmacology*
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Structure-Activity Relationship
Substances
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4-(2,3-dihydro-1H-benzo(d)pyrrolo(1,2-a)imidazol-7-yl)-N-(5-(piperazin-1-ylmethyl)pyridine-2-yl)pyrimidin-2-amine
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Antineoplastic Agents
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Imidazoles
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Piperazines
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Protein Kinase Inhibitors
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Pyridines
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Pyrimidines
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Pyrroles
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Cyclin-Dependent Kinases