Tuspetinib hydrate  (Synonyms: HM43239 hydrate)

Tuspetinib (HM43239) hydrate is an orally active and selective FLT3 inhibitor with IC₅₀s of 1.1 nM, 1.8 nM and 1.0 nM for FLT3 WT, FLT3 internal tandem duplication (ITD) and FLT3 D835Y kinases, respectively. Tuspetinib hydrate inhibits the kinase activity of FLT3 as a reversible type I inhibitor and modulates p-STAT5, p-ERK, SYK, JAK1/2, and TAK1. Tuspetinib hydrate inhibits the proliferation and induces the apoptosis of leukemic cells^[1][2][3].

IC50: 1.1 nM (FLT3 WT); 1.8 nM (FLT3 ITD); 1.0 nM (FLT3 D835Y)^[1].

519.08

C₂₉H₃₅ClN₆O

2758339-04-5

ClC1=CN=C(NC2=CC(C3CC3)=CC(CN4C[C@H](N[C@H](C4)C)C)=C2)N=C1C5=CNC6=CC(C)=CC=C56.O

Room temperature in continental US; may vary elsewhere.

Please store the product under the recommended conditions in the Certificate of Analysis.

• [1]. Miyoung Lee, et.al. Abstract 804: Antitumor activity of the potent and novel FLT3 inhibitor HM43239 in acute myeloid leukemia. Cancer Res July 1 2018 (78) (13 Supplement) 804.

  [2]. Naval G. Daver, et.al. HM43239, a Novel Potent Small Molecule FLT3 Inhibitor, in Acute Myeloid Leukemia (AML) with FMS-like Tyrosine Kinase 3 (FLT3) Mutations: Phase 1 /2 Study. Blood 2019; 134 (Supplement_1): 1331.

  [3]. JiSook Kim, et.al. Abstract 1293: HM43239, a novel FLT3 inhibitor in overcoming resistance for acute myeloid leukemia. Cancer Res July 1 2019 (79) (13 Supplement) 1293.