Abstract
We have developed a series of new 2,4-diarylaminopyrimidine analogues (DAAPalogues) bearing a flexible amino acid side chain, different from the majority of the literature reported ALK inhibitors that often possess a structurally constrained arylpiperazine fragment or its equivalents in the solvent-interaction region. Extensive structural elaboration led to compound 15 possessing IC50 values of 2.7 and 15.3 nM, respectively, in the ALK wild-type and gate-keeper mutant L1196M enzymatic assays. This compound not only showed high proliferative inhibition against ALK-addicted cells across different oncogenic forms but also effectively suppressed several ALK secondary mutant cells, including the gate-keeper L1196M and F1174L. Significant antitumor efficacy was achieved in the ALK-driven SUP-M2 xenograft model.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Acetanilides / chemistry*
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Acetanilides / pharmacology*
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Anaplastic Lymphoma Kinase
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Animals
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Antineoplastic Agents / chemistry
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Antineoplastic Agents / pharmacokinetics
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Antineoplastic Agents / pharmacology
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Area Under Curve
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Cell Line
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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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Female
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Humans
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Mice
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Mice, Nude
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Models, Chemical
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Molecular Structure
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Mutant Proteins / antagonists & inhibitors*
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Mutant Proteins / metabolism
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Mutation
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NIH 3T3 Cells
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Neoplasms / drug therapy
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Neoplasms / pathology
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Protein Kinase Inhibitors / chemistry*
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Protein Kinase Inhibitors / pharmacokinetics
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Protein Kinase Inhibitors / pharmacology*
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Rats
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Receptor Protein-Tyrosine Kinases / antagonists & inhibitors*
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Receptor Protein-Tyrosine Kinases / genetics
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Receptor Protein-Tyrosine Kinases / metabolism
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Sulfones / chemistry*
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Sulfones / pharmacology*
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Tumor Burden / drug effects
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Xenograft Model Antitumor Assays
Substances
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2-amino-N-(3-((5-chloro-4-((2-(isopropylsulfonyl)phenyl)amino)pyrimidin-2-yl)amino)phenyl)acetamide
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Acetanilides
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Antineoplastic Agents
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Mutant Proteins
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Protein Kinase Inhibitors
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Sulfones
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ALK protein, human
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Alk protein, mouse
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Alk protein, rat
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Anaplastic Lymphoma Kinase
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Receptor Protein-Tyrosine Kinases