Abstract
The design, synthesis and biological evaluation of 4-substituted 5-methyl-furo[2,3-d]pyrimidines is described. The Ullmann coupling of 5-methyl-furo[2,3-d]pyrimidine with aryl iodides was successfully optimized to synthesize these analogs. Compounds 6-10 showed single-digit nanomolar inhibition of EGFR kinase. Compounds 1 and 6-10 inhibited VEGFR-2 kinase better than or equal to sunitinib. Compounds 1 and 3-10 were more potent inhibitors of PDGFR-β kinase than sunitinib. In addition, compounds 4-11 had higher potency in the CAM angiogenesis assay than sunitinib. Compound 1 showed in vivo efficacy in an A498 renal xenograft model in mice. Multiple RTK and tubulin inhibitory attributes of 1, 4, 6 and 8 indicates that these compounds may be valuable preclinical single agents targeting multiple intracellular targets.
Keywords:
Angiogenesis; Combination chemotherapy; Furo[2,3-d]pyrimidines; Structure-activity relationships; Tubulin inhibitors.
Copyright © 2018. Published by Elsevier Ltd.
Publication types
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Research Support, N.I.H., Extramural
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, Non-P.H.S.
MeSH terms
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Animals
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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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Dose-Response Relationship, Drug
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Drug Design*
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Drug Screening Assays, Antitumor
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ErbB Receptors / antagonists & inhibitors
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ErbB Receptors / metabolism
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Humans
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Mice
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Molecular Docking Simulation
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Molecular Structure
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Neoplasms, Experimental / drug therapy
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Neoplasms, Experimental / pathology
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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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Pyrimidines / chemical synthesis
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Pyrimidines / chemistry
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Pyrimidines / pharmacology*
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Receptor, Platelet-Derived Growth Factor beta / antagonists & inhibitors*
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Receptor, Platelet-Derived Growth Factor beta / metabolism
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Structure-Activity Relationship
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Vascular Endothelial Growth Factor Receptor-2 / antagonists & inhibitors*
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Vascular Endothelial Growth Factor Receptor-2 / metabolism
Substances
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Antineoplastic Agents
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Protein Kinase Inhibitors
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Pyrimidines
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EGFR protein, human
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ErbB Receptors
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Receptor, Platelet-Derived Growth Factor beta
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Vascular Endothelial Growth Factor Receptor-2