Abstract
Based upon the modeling binding mode of marketed AZD9291 with T790M, a series of N-9-Diphenyl-9H-purin-2-amine derivatives were designed and synthesized with the purpose to overcome the drug resistance resulted from T790M/L858R double mutations. The most potent compound 23a showed excellent enzyme inhibitory activities and selectivity with nanomolar IC50 values for both the single T790M and double T790M/L858R mutant EGFRs, and was more than 8-fold selective for wild type EGFR. Compound 23a displayed strong antiproliferative activity against the H1975 non-small cell lung cancer (NSCLC) cells bearing T790M/L858R. And it was less potent against A549 (WT EGFR and k-Ras mutation) and HT-29 (non-special gene type) cells, showing a high safety index.
Keywords:
L858R/T790M double mutants; N-9-Diphenyl-9H-purin-2-amine derivatives; Non-small cell lung cancer.
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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Benzene Derivatives / chemical synthesis
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Benzene Derivatives / chemistry
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Benzene Derivatives / pharmacology*
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Cell Line, Tumor
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Cell Proliferation / drug effects
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Dose-Response Relationship, Drug
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Drug Discovery
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Drug Screening Assays, Antitumor
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ErbB Receptors / antagonists & inhibitors*
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ErbB Receptors / genetics
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ErbB Receptors / metabolism
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HT29 Cells
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Humans
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Molecular Structure
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Mutation
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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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Purines / chemical synthesis
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Purines / chemistry
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Purines / pharmacology*
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Structure-Activity Relationship
Substances
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Antineoplastic Agents
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Benzene Derivatives
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Protein Kinase Inhibitors
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Purines
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EGFR protein, human
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ErbB Receptors