HKI 357

HKI 357 is an irreversible dual inhibitor of the EGF receptor tyrosine kinases EGFR and HER2 (IC50s = 34 and 33 nM, respectively). It inhibits proliferation of A431, SK-BR-3, and SW620 cancer cell lines (IC50s = 120, 2.5, and 511 nM, respectively). HKI 357 suppresses EGFR autophosphorylation and phosphorylation of the downstream effectors AKT and ERK in the gefitinib-susceptible and -resistant cell lines NCI-H1650 and NCI-H1650(G7), respectively. In vivo, HKI 357 (10 mg/kg) inhibits tumor growth in BT474, A431, and SUM190 mouse xenograft models.Formal Name: (2E)-N-[4-[[3-chloro-4-[(3-fluorophenyl)methoxy]phenyl]amino]-3-cyano-7-ethoxy-6-quinolinyl]-4-(dimethylamino)-2-butenamide. CAS Number: 848133-17-5. Molecular Formula: C31H29ClFN5O3. Formula Weight: 574.1. Purity: >98%. Formulation: (Request formulation change), A solid. Solubility: DMSO: 100 mM, Ethanol: 25 mM. SMILES: O=C(/C=C/CN(C)C)N([H])C1=C(OCC)C=C(N=CC(C#N)=C2N([H])C3=CC=C(OCC4=CC=CC(F)=C4)C(Cl)=C3)C2=C1. InChi Code: InChI=1S/C31H29ClFN5O3/c1-4-40-29-16-26-24(15-27(29)37-30(39)9-6-12-38(2)3)31(21(17-34)18-35-26)36-23-10-11-28(25(32)14-23)41-19-20-7-5-8-22(33)13-20/h5-11,13-16,18H,4,12,19H2,1-3H3,(H,35,36)(H,37,39)/b9-6+. InChi Key: NERXPXBELDBEPZ-RMKNXTFCSA-N.