Neratinib

**Semantic type:** Pharmacologic Substance

**Definition:** An orally available, 6,7-disubstituted-4-anilinoquinoline-3-carbonitrile irreversible inhibitor of the HER-2 receptor tyrosine kinase with potential antineoplastic activity. Neratinib binds to the HER-2 receptor irreversibly, thereby reducing autophosphorylation in cells, apparently by targeting a cysteine residue in the ATP-binding pocket of the receptor. Treatment of cells with this agent results in inhibition of downstream signal transduction events and cell cycle regulatory pathways; arrest at the G1-S (Gap 1/DNA synthesis)-phase transition of the cell division cycle; and ultimately decreased cellular proliferation. Neratinib also inhibits the epidermal growth factor receptor (EGFR) kinase and the proliferation of EGFR-dependent cells.

**Synonyms:** - (2E)-N-(4-((3-chloro-4-((pyridin-2-yl)methoxy)phenyl)amino)-3-cyano-7-ethoxyquinolin-6-yl)-4-(dimethylamino)but-2-enamide - 2-Butenamide, N-(4-((3-chloro-4-(2-pyridinylmethoxy)phenyl)amino)-3-cyano-7-ethoxy-6-quinolinyl)-4-(dimethylamino)-, (2E)- - HKI 272 - HKI-272 - HKI272 - NERATINIB - PB 272 - PB-272