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Purity: ≥98%
5-chloro-SU5614 is a potent and selective FLT3 inhibitor. In Ba/F3 and AML cell lines that express constitutively activated FLT3, 5-chloro-SU5614 selectively induces growth arrest, apoptosis, and cell cycle arrest. It also exhibits inhibitory activity for FLT3. In FL-dependent cells, 5-chloro-SU5614 reverses the antiapoptotic and pro-proliferative effects of FLT3 ligand (FL). In addition to its downstream targets, the hyperphosphorylated FLT3 receptor, 5-chloro-SU5614also down-regulated the activity of mitogen-activated protein kinase (MAPK), signal transducer and activator of (STAT) 3, STAT5, and the STAT5 target genes BCL-X(L) and p21.
| Targets |
VEGFR-2; c-Kit; FLT3; RET (IC50 = 170 nM)
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| ln Vivo |
Increased bone marrow angiogenesis and vascular endothelial growth factor (VEGF) levels are adverse prognostic features in patients with acute myeloid leukemia (AML) or myelodysplastic syndromes (MDSs). VEGF is a soluble circulating angiogenic molecule that stimulates signaling via receptor tyrosine kinases (RTKs), including VEGF receptor 2 (VEGFR-2). AML blasts may express VEGFR-2, c-kit, and FLT3. SU5416 is a small molecule RTK inhibitor (RTKI) of VEGFR-2, c-kit, and both wild-type and mutant FLT3. A multicenter phase 2 study of SU5416 was conducted in patients with refractory AML or MDS. For a median of 9 weeks (range, 1-55 weeks), 55 patients (33 AML: 10 [30%] primary refractory, 23 [70%] relapsed; 22 MDS: 15 [68%] relapsed) received 145 mg/m2 SU5416 twice weekly intravenously. Grade 3 or 4 drug-related toxicities included headaches (14%), infusion-related reactions (11%), dyspnea (14%), fatigue (7%), thrombotic episodes (7%), bone pain (5%), and gastrointestinal disturbance (4%). There were 11 patients (20%) who did not complete 4 weeks of therapy (10 progressive disease, 1 adverse event); 3 patients (5%) who achieved partial responses; and 1 (2%) who achieved hematologic improvement. Single agent SU5416 had biologic and modest clinical activity in refractory AML/MDS. Overall median survival was 12 weeks in AML patients (range, 4-41 weeks) and not reached in MDS patients. Most observed toxicities were attributable to drug formulation (polyoxyl 35 castor oil or hyperosmolarity of the SU5416 preparation). Studies of other RTKI and/or other antiangiogenic approaches, with correlative studies to examine biologic effects, may be warranted in patients with AML/MDS.[1]
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| Enzyme Assay |
Thyroid neoplasia is frequently associated with rearranged during transfection (RET) proto-oncogene mutations that cause hyperactivation of RET kinase activity. Selective inhibition of RET-mediated signaling should lead to an efficacious therapy. SU5416 is a potent inhibitor of vascular endothelial cell growth factor receptor, c-Kit, and FLT-3 receptor tyrosine kinases presently used in clinical trials. We found that SU5416 inhibits RET with similar potency, both in cell-free assays and in cells, thus causing proliferation arrest in oncogenic RET-transfected cells and in papillary thyroid carcinoma (PTC) cells expressing the RET/PTC1 oncogene, but not in RET-negative control cells. SU5416 inhibited RET-mediated signaling through the extracellular signal regulated kinase (ERK) and JNK pathways. In addition, we show that a naturally occurring MEN2 mutation at codon 804 confers resistance to SU5416, but not to the related compound SU4984. We provide a possible explanation to these results by using molecular docking. Finally, SU5416 was also assessed against an array of 52 tyrosine and serine/threonine kinases.[2]
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| References | |
| Additional Infomation |
SU5614 is a member of the class of oxindoles that is 5-chlorooxindole in which the two hydrogens at position 3 are replaced by a (3,5-dimethylpyrrol-2-yl)methylidene group. It has a role as a vascular endothelial growth factor receptor antagonist. It is a member of pyrroles, a member of oxindoles and an organochlorine compound.
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| Molecular Formula |
C15H13CLN2O
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|---|---|
| Molecular Weight |
272.73
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| Exact Mass |
272.072
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| Elemental Analysis |
C, 66.06; H, 4.80; Cl, 13.00; N, 10.27; O, 5.87
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| CAS # |
1055412-47-9
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| Related CAS # |
Semaxanib HCl;204005-46-9;1055412-47-9 (Chloro-SU5416);
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| PubChem CID |
6536806
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| Appearance |
Brown to black solid powder
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| LogP |
3.862
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| Hydrogen Bond Donor Count |
2
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| Hydrogen Bond Acceptor Count |
1
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| Rotatable Bond Count |
1
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| Heavy Atom Count |
19
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| Complexity |
409
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| Defined Atom Stereocenter Count |
0
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| SMILES |
ClC1C([H])=C([H])C2=C(C=1[H])C(C(N2[H])=O)=C([H])C1=C(C([H])([H])[H])C([H])=C(C([H])([H])[H])N1[H]
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| InChi Key |
XLBQNZICMYZIQT-GHXNOFRVSA-N
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| InChi Code |
InChI=1S/C15H13ClN2O/c1-8-5-9(2)17-14(8)7-12-11-6-10(16)3-4-13(11)18-15(12)19/h3-7,17H,1-2H3,(H,18,19)/b12-7-
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| Chemical Name |
(3Z)-5-chloro-3-[(3,5-dimethyl-1H-pyrrol-2-yl)methylidene]-1H-indol-2-one
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| Synonyms |
SU5614; SU 5614; SU5614.
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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 |
| 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) |
DMSO: 10~16.7 mg/mL (61.1~36.7 mM)
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| Solubility (In Vivo) |
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.
Injection Formulations
Injection Formulation 1: DMSO : Tween 80： Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline)(e.g. IP/IV/IM/SC) *Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution. Injection Formulation 2: DMSO : PEG300 ：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO → 900 μL Corn oil) Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals). View More
Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO → 900 μL (20% SBE-β-CD in saline)] Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium) Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals). View More
Oral Formulation 3: Dissolved in PEG400 (Please use freshly prepared in vivo formulations for optimal results.) |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 3.6666 mL | 18.3332 mL | 36.6663 mL | |
| 5 mM | 0.7333 mL | 3.6666 mL | 7.3333 mL | |
| 10 mM | 0.3667 mL | 1.8333 mL | 3.6666 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.
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