FLT3 Inhibitor

FLT3 Ligand-Linker Conjugate 1 (compound 7) contains the FLT3 ligand and a PROTAC linker, which can recruit the E3 ligase VHL. FLT3 Ligand-Linker Conjugate 1 can be used to synthesize the PROTAC RSS0680 (HY-148062). PROTAC RSS0680 is a bifunctional compound that targets protein degradation of kinases.

PDGFRα/FLT3-ITD-IN-1 (Compound 12d) is a potent inhibitor of PDGFRα/FLT3 with IC₅₀s of more than 0.036 and 0.003 μM, respectively. PDGFRα/FLT3-ITD-IN-1 has the potential for the research of acute myeloid leukemia or chronic eosinophilic leukemia.

FLT3-IN-16-d1 is the deuterium labeled FLT3-IN-16 (HY-148036). FLT3-IN-16 is a potent FLT3 inhibitor with an IC₅₀ of 1.1 μM. FLT3-IN-16 can be used for researching acute myeloid leukemia.

FLT3/VEGFR2-IN-1 (Compound 26) is a FLT3/VEGFR2/HDAC inhibitor with IC₅₀ values of 14.5 nM, 3.9 nM, and 30.8 nM for FLT3, VEGFR2, and HDAC1, respectively. FLT3/VEGFR2-IN-1 can inhibit the phosphorylation of STAT3 and ERK1/2 and the proliferation of leukemia cells. FLT3/VEGFR2-IN-1 has anti-tumor activity and can be used for the research of acute myeloid leukemia.

FLT3-IN-18 is a potent and selective FLT3 inhibitor with an IC₅₀ value of 0.003 μM. FLT3-IN-18 induces apoptosis and cell cycle arrest at G1 phase. FLT3-IN-18 inhibits FLT3 and STAT5 phosphorylation. FLT3-IN-18 has the potential for the research of acute myeloid leukemia (AML).

(R)-3-Hydroxy Midostaurin ((R)-CGP52421) is a potent kinases inhibitor. (R)-3-Hydroxy Midostaurin is a major metabolite of midostaurin (PKC412; HY-10230) undergoing by the hepatic CYP3A4 enzyme. (R)-3-Hydroxy Midostaurin has the potential for acute myeloid leukemia (AML).

LS-104 (Tyrene CR-4) is a non-ATP-competitive kinase inhibitor against JAK2, Bcr-Abl and FLT3. LS-104 potently induces apoptosis in JAK2V617F-positive cells and inhibits JAK2 autophosphorylation and downstream signal transduction. LS-104 also inhibits proliferation and induces potent cytotoxic effects in FLT3 expressing leukemic cells. LS-104 is a hydroxystyryl-acrylonitrile compound, which is promising for research of myeloproliferative disorders and refractory/relapsed hematologic malignancies.

FLT3-IN-24 (compound 24) is a potent and selective inhibitor of FLT3 kinase with an IC₅₀ of 7.94 nM. FLT3-IN-24 has cell antiproliferative effects.

FLT3-IN-20 (compound 34f) is a potent FLT3 inhibitor with IC₅₀ values of 1 and 4 nM for FLT3-D835Y and FLT3-ITD, respectively. FLT3-IN-20 has anti-proliferation efficacy in FLT3-ITD-positive AML cell lines MV4-11 and MOLM-13 (7 and 9 nM, respectively) and the MOLM-13 variant (4 nM) with the FLT3-ITD-D835Y mutation. FLT3-IN-20 can be used in research of cancer.

Multi-kinase-IN-12 is a non-selective multi-target inhibitor, with IC₅₀ values against human targets as follows: Flt3 < 0.001 μM, c-Src 0.002 μM, KDR 0.004 μM, Eph-A2, MNK-1 and Flt1 0.011 μM, Lck 0.016 μM, Rsk1 0.21 μM, and α2 subunit of AMPK 0.041 μM. Multi-kinase-IN-12 can be used in research related to solid tumors.

TTT 3002 is a potent and orally active FLT3 inhibitor. TTT 3002 potently inhibits FLT3 phosphorylation by activating mutations at residue D835, with an IC₅₀ of 0.2 nM. TTT 3002 can be used for AML (acute myeloid leukemia) research.

FLC-8 is an orally active FLT3 inhibitor with IC₅₀ values of 10.2 nM, 11.6 nM and 24.10 nM against human FLT3-WT, FLT3-G697R and FLT3-N676D, respectively. FLC-8 inhibits FLT3 autophosphorylation and downstream STAT5, AKT and ERK signaling pathways, and induces apoptosis in acute myeloid leukemia (AML) cells. FLC-8 exhibits potent antitumor activity in the MV4-11 xenograft model. FLC-8 can be used for the research of acute myeloid leukemia.

HP1142 is a potent and selective inhibitor of FLT3 receptor tyrosine kinase (FLT3/ITD mutation). HP1142 is a benzoimidazole scaffold-based compound. HP1142 has the potential for the research of FLT3/ITD leukemia.

FLT3/CDK4-IN-1 is a potent, high selective and orally active FLT3/CDK4 dual inhibitor (IC₅₀=11 and 7 nM for FLT3 and CDK4, respectively). FLT3/CDK4-IN-1 has antiproliferative activities against certain cancer cells. FLT3/CDK4-IN-1 has good antitumor effect in vivo.

SG3-179 is a potent inhibitor against the BET bromodomain proteins. SG3-179 is also a JAK2 and FLT3 inhibitor. SG3-179 causes a rapid reduction in HOXB13 protein expression. SG3-179 is promising for research of multiple myeloma (MM1.S).

PDGFRα/FLT3-ITD-IN-2 (Compound 13d) is a potent inhibitor of PDGFRα/FLT3 with IC₅₀s of more than 20 and 1.654 μM, respectively. PDGFRα/FLT3-ITD-IN-2 has the potential for the research of acute myeloid leukemia or chronic eosinophilic leukemia.

FLT3-IN-13 (compound 20) is a potent and effective antileukemic topoisomerase II and FLT3 dual inhibitor with IC₅₀ values of 2.26 μM and 2.26 μM, respectively. FLT3-IN-13 arrests cell cycle at G2/M phase and induce apoptosis. FLT3-IN-13 has anticytotoxic activity, particularly against leukemia.

FLT3D835Y/F691L-IN-1 (compd 8v) is an orally active inhibitor of FLT3 3-tyrosine kinase domain D835Y/F691L secondary mutations with IC₅₀s of 1.5 and 9.7 nM. FLT3D835Y/F691L-IN-1 can be used for acute myeloid leukemia research.

AFG206 is a first-generation ATP competitive “type II” FLT3 inhibitor. AFG206 potently inhibits cell proliferation (IC₅₀ around 0.1 µM) via induction of Apoptosis in FLT3-ITD-Ba/F3 cells and D835Y-Ba/F3 cells. AFG206 is promising for research of acute myeloid leukemia.

FI-700 is an orally active FLT3 inhibitor with an IC₅₀ of 20 nM. FI-700 induces G1 phase cell cycle arrest by inhibiting autophosphorylation of mutant FLT3 and the downstream STAT5/MAPK pathway. FI-700 triggers the mitochondrial apoptosis pathway by downregulating anti-apoptotic proteins Mcl-1 and Bcl-XL, altering the conformation of Bax, and activating caspase-3. FI-700 can be used in research related to acute myeloid leukemia.