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Substance Name: Naquotinib [USAN]
RN: 1448232-80-1
UNII: 47DD4548PB


  • NCI: An orally available, irreversible, third-generation, mutant-selective, epidermal growth factor receptor (EGFR) inhibitor, with potential antineoplastic activity. Upon oral administration, ASP8273 covalently binds to and inhibits the activity of mutant forms of EGFR, including the T790M EGFR mutant, thereby preventing EGFR-mediated signaling. This may both induce cell death and inhibit tumor growth in EGFR-overexpressing tumor cells. EGFR, a receptor tyrosine kinase mutated in many tumor cell types, plays a key role in tumor cell proliferation and tumor vascularization. ASP8273 preferentially inhibits mutated forms of EGFR including T790M, a secondarily acquired resistance mutation, and may have therapeutic benefits in tumors with T790M-mediated resistance when compared to other EGFR tyrosine kinase inhibitors. As this agent is selective towards mutant forms of EGFR, its toxicity profile may be reduced as compared to non-selective EGFR inhibitors which also inhibit wild-type EGFR. (NCI Thesaurus)

Molecular Formula

  • C30-H42-N8-O3

Molecular Weight

  • 562.7148

Classification Codes

  • Antineoplastic Agents
  • Enzyme Inhibitors
  • Protein Kinase Inhibitors
  • Treatment of Advanced Non-Small Cell Lung Cancer
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Names and Synonyms

Name of Substance

  • Naquotinib [USAN]


  • 6-Ethyl-3-((4-(4-(4-methylpiperazin-1-yl)piperidin-1-yl)phenyl)amino)-5-(((3R)-1-(1-oxoprop-2-en-1-yl)pyrrolidin-3-yl)oxy)pyrazine-2-carboxamide
  • 6-Ethyl-3-(4-(4-(4-methylpiperazin-1-yl)piperidin-1-yl)anilino)-5-(((3R)-1-(prop-2-enoyl)pyrrolidin-3-yl)oxy)pyrazine-2-carboxamide
  • ASP8273
  • Naquotinib
  • UNII-47DD4548PB

Systematic Name

  • 2-Pyrazinecarboxamide, 6-ethyl-3-((4-(4-(4-methyl-1-piperazinyl)-1-piperidinyl)phenyl)amino)-5-(((3R)-1-(1-oxo-2-propen-1-yl)-3-pyrrolidinyl)oxy)-

Registry Numbers

CAS Registry Number

  • 1448232-80-1


  • 47DD4548PB

System Generated Number

  • 1448232801

Structure Descriptors