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Purity: ≥98%
Flumatinib (HHGV-678; HHGV678; Hansoh Xinfu), the first approved 2nd generation TKI in China and an imatinib derivative, is a potent multi-kinase inhibitor with anticancer activity. It has IC50 values of 1.2 nM, 307.6 nM, and 2662 nM for c-Abl, PDGFRβ, and c-Kit inhibition, respectively. It functions as a BCR-ABL/PDGFR/KIT selective inhibitor, basically. Some KIT mutants with activation loop mutations (D820G, N822K, Y823D, and A829P) were successfully treated with flumatinib to overcome their drug resistance. Studies conducted in vivo have consistently indicated that flumatinib is more effective than imatinib or sunitinib in treating 32D cells that have the secondary mutation Y823D. Clinical trials for flumatinib are presently taking place in Phase I/II settings to treat chronic myelogenous leukemia (CML).
| Targets |
c-Abl (IC50 = 1.2 nM); PDGFRβ (IC50 = 307.6 nM); c-Kit (IC50 = 2662 nM)
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| Enzyme Assay |
Retroviral constructs based on murine stem cell viruses that carried either activating mutant D816V (816 Asp→Val) KIT cDNA or murine–human hybrid WT KIT cDNA were kindly provided by Michael H. Tomasson (Washington University School of Medicine, St. Louis, MO, USA). The intracellular region of human KIT was fused in-frame with the extracellular and transmembrane regions of murine KIT to create hybrid KIT alleles. It has been demonstrated that substituting homologous murine sequences for the human extracellular and transmembrane domains of KIT can increase the expression efficiency and preserve the capacity to transform some KIT mutants in murine cells. The enhanced GFP cassette from the downstream internal ribosomal entry site causes KIT alleles to coexpress with enhanced GFP. In accordance with Molecular Cloning's third edition of Protocol 3, mutagenesis, the KIT point mutations were produced. Mutagenic primers were created to avoid the deleted sequence in insertion mutagenesis and to harbor the deleted sequence in deletion mutagenesis, respectively. Primestar Hot Start DNA polymerase (Takara, Dalian, China) with high fidelity was used in all of the PCRs mentioned above. Takara was also the source of additional enzymes used in the aforementioned experiments. By using direct sequencing, the sequences of every mutant in this study were confirmed.
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| Cell Assay |
In triplicate, cells (5 × 103) were incubated with different concentrations of imatinib, flumatinib, or sunitinib in 96-well plates for 72 hours, using 200 μL medium containing or lacking IL-3. The cells were incubated for 4 hours after we added MTT. The insoluble purple formazan product was dissolved into a colored solution by adding a solubilization solution, which is a solution of the detergent SDS in diluted hydrochloric acid. A spectrophotometer was used to measure the absorbance of this colored solution at 570 nm using a 650 nm reference filter. The ratio of average absorbance in drug-treated wells to no-drug controls was used to plot growth inhibition. GraphPad Prism version 5, a program for curve-fitting, was used to determine the IC50 values.
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| Additional Infomation |
Flumatinib has been used in trials studying the treatment of Myelogenous Leukemia, Chronic.
Flumbatinib is an orally bioavailable tyrosine kinase inhibitor, with potential antineoplastic activity. Upon administration, flumbatinib inhibits the wild-type forms of Bcr-Abl, platelet-derived growth factor receptor (PDGFR) and mast/stem cell growth factor receptor (SCFR; c-Kit) and forms of these proteins with certain point mutations. This results in the inhibition of both Bcr-Abl-, PDGFR- and c-Kit-mediated signal transduction pathways, and the proliferation of tumor cells in which these kinases are overexpressed. Bcr-Abl fusion protein is an abnormal, constitutively active enzyme expressed in Philadelphia chromosome positive chronic myeloid leukemia (CML), acute lymphoblastic leukemia (ALL) or acute myelogenous leukemia (AML). PDGFR, upregulated in many tumor cell types, is a receptor tyrosine kinase essential to cell migration and the development of the microvasculature. c-kit, a receptor tyrosine kinase mutated and constitutively activated in certain tumors, plays a key role in tumor cell survival, proliferation, and differentiation. |
| Molecular Formula |
C29H29F3N8O
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| Molecular Weight |
562.59
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| Exact Mass |
562.242
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| Elemental Analysis |
C, 61.91; H, 5.20; F, 10.13; N, 19.92; O, 2.84
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| CAS # |
895519-90-1
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| Related CAS # |
Flumatinib mesylate;895519-91-2;Flumatinib-d3
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| PubChem CID |
46848036
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| Appearance |
Off-white to yellow solid powder
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| LogP |
5.336
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| Hydrogen Bond Donor Count |
2
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| Hydrogen Bond Acceptor Count |
11
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| Rotatable Bond Count |
7
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| Heavy Atom Count |
41
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| Complexity |
841
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| Defined Atom Stereocenter Count |
0
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| SMILES |
O=C(C1C=C(C(F)(F)F)C(CN2CCN(C)CC2)=CC=1)NC1C=C(NC2N=C(C3C=CC=NC=3)C=CN=2)C(C)=NC=1
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| InChi Key |
BJCJYEYYYGBROF-UHFFFAOYSA-N
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| InChi Code |
InChI=1S/C29H29F3N8O/c1-19-26(38-28-34-9-7-25(37-28)21-4-3-8-33-16-21)15-23(17-35-19)36-27(41)20-5-6-22(24(14-20)29(30,31)32)18-40-12-10-39(2)11-13-40/h3-9,14-17H,10-13,18H2,1-2H3,(H,36,41)(H,34,37,38)
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| Chemical Name |
4-[(4-methylpiperazin-1-yl)methyl]-N-[6-methyl-5-[(4-pyridin-3-ylpyrimidin-2-yl)amino]pyridin-3-yl]-3-(trifluoromethyl)benzamide
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| Synonyms |
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| HS Tariff Code |
2934.99.9001
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| Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
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| Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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| Solubility (In Vitro) |
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| Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.08 mg/mL (3.70 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2.08 mg/mL (3.70 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly. (Please use freshly prepared in vivo formulations for optimal results.) |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 1.7775 mL | 8.8875 mL | 17.7749 mL | |
| 5 mM | 0.3555 mL | 1.7775 mL | 3.5550 mL | |
| 10 mM | 0.1777 mL | 0.8887 mL | 1.7775 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration： mg/mL；
Method for preparing DMSO stock solution： mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation:：Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O，mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.
| NCT Number | Recruitment | interventions | Conditions | Sponsor/Collaborators | Start Date | Phases |
| NCT04677439 | Recruiting | Drug: Flumatinib | Flumatinib Imatinib |
Shenzhen Second People's Hospital | January 1, 2021 | Phase 4 |
| NCT05353205 | Recruiting | Drug: Flumatinib mesylate tablets (400mg) Drug: Flumatinib mesylate tablets (600mg) |
CML, Chronic Phase | Jiangsu Hansoh Pharmaceutical Co., Ltd. | December 2013 | Phase 4 |
| NCT05071482 | Recruiting | Drug: Flumatinib Drug: Imatinib |
Acute Leukemia | wang, jianxiang | September 16, 2021 | Phase 4 |
| NCT05433532 | Recruiting | Drug: Flumatinib Drug: Venetoclax |
Acute Myeloid Leukemia Chronic Myeloid Leukemia |
The First Affiliated Hospital of Soochow University |
May 1, 2022 | Phase 2 |
| NCT05367765 | Completed | Drug: Flumatinib Drug: Imatinib |
CML, Chronic Phase | Jiangsu Hansoh Pharmaceutical Co., Ltd. |
April 30, 2022 | Phase 4 |
 KIT mutants, downstream signaling effectors ERK1/2, and signal transducer and activator of transcription-3 (STAT3), are constitutively phosphorylated in transformed 32D cell lines.Cancer Sci.2014 Jan;105(1):117-25. |
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 Effects of imatinib, flumatinib, and sunitinib on the phosphorylation of KIT, ERK1/2, and signal transducer and activator of transcription-3 (STAT3) in 32D-V559D (a) and 32D-V559D+Y823D (b) cells.Cancer Sci.2014 Jan;105(1):117-25. |
 Molecular modeling of the interactions between flumatinib and KIT kinase domain. (a) Structures of imatinib and flumatinib. (b) Molecular docking model of the KIT/flumatinib complex.Cancer Sci.2014 Jan;105(1):117-25. |
 In vivoeffects of imatinib, flumatinib, and sunitinib on the survival of mice after s.c. injection of 32D-V559D (a) or 32D-V559D+Y823D (b) cells.Cancer Sci.2014 Jan;105(1):117-25. |
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 Pharmacokinetic (PK) and pharmacodynamic properties of imatinib, flumatinib, and sunitinib. Mice bearing 32D-V559D+Y823D tumors received a single dose of 150mg/kg imatinib, 75mg/kg flumatinib, or 50mg/kg sunitinib.Cancer Sci.2014 Jan;105(1):117-25. |
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