PD 161570

Selective FGFR inhibitor CAS# 192705-80-9

PD 161570

Catalog No. BCC7765----Order now to get a substantial discount!

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Quality Control of PD 161570

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Chemical structure

PD 161570

3D structure

Chemical Properties of PD 161570

Cas No. 192705-80-9 SDF Download SDF
PubChem ID 5328135 Appearance Powder
Formula C26H35Cl2N7O M.Wt 532.51
Type of Compound N/A Storage Desiccate at -20°C
Solubility Soluble to 100 mM in DMSO and to 100 mM in ethanol
Chemical Name 1-tert-butyl-3-[6-(2,6-dichlorophenyl)-2-[4-(diethylamino)butylamino]pyrido[2,3-d]pyrimidin-7-yl]urea
SMILES CCN(CC)CCCCNC1=NC2=NC(=C(C=C2C=N1)C3=C(C=CC=C3Cl)Cl)NC(=O)NC(C)(C)C
Standard InChIKey MKVMEJKNLUWFSQ-UHFFFAOYSA-N
Standard InChI InChI=1S/C26H35Cl2N7O/c1-6-35(7-2)14-9-8-13-29-24-30-16-17-15-18(21-19(27)11-10-12-20(21)28)23(31-22(17)32-24)33-25(36)34-26(3,4)5/h10-12,15-16H,6-9,13-14H2,1-5H3,(H3,29,30,31,32,33,34,36)
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of PD 161570

DescriptionSelective FGFR inhibitor (IC50 values are 40, 262 and 3700 nM for FGFR, PDGFR and EGFR respectively). Inhibits FGFR receptor phosphorylation (IC50 = 622 nM) and growth of A121 cells in vitro.

PD 161570 Dilution Calculator

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PD 161570 Molarity Calculator

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Preparing Stock Solutions of PD 161570

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 1.8779 mL 9.3895 mL 18.779 mL 37.558 mL 46.9475 mL
5 mM 0.3756 mL 1.8779 mL 3.7558 mL 7.5116 mL 9.3895 mL
10 mM 0.1878 mL 0.9389 mL 1.8779 mL 3.7558 mL 4.6947 mL
50 mM 0.0376 mL 0.1878 mL 0.3756 mL 0.7512 mL 0.9389 mL
100 mM 0.0188 mL 0.0939 mL 0.1878 mL 0.3756 mL 0.4695 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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References on PD 161570

Inhibition of FGF-1 receptor tyrosine kinase activity by PD 161570, a new protein-tyrosine kinase inhibitor.[Pubmed:9488112]

Life Sci. 1998;62(2):143-50.

Through direct synthetic efforts we discovered a small molecule which is a 40 nanomolar inhibitor of the human FGF-1 receptor tyrosine kinase. 1-Tert-butyl-3-[6-(2,6-dichloro-phenyl)-2-(4-diethylamino-butylamino)-py rido[2,3-d]pyrimidin-7-yl]-urea (PD 161570) had about 5- and 100-fold greater selectivity toward the FGF-1 receptor (IC50 = 40 nM) compared with the PDGFbeta receptor (IC50 = 262 nM) or EGF receptor (IC50 = 3.7 microM) tyrosine kinases, respectively. In addition, PD 161570 suppressed constitutive phosphorylation of the FGF-1 receptor in both human ovarian carcinoma cells (A121(p)) and Sf9 insect cells overexpressing the human FGF-1 receptor and blocked the growth of A121(p) cells in culture. The results demonstrate a novel synthetic inhibitor with nanomolar potency and specificity towards the FGF-1 receptor tyrosine kinase.

Structure-activity relationships for a novel series of pyrido[2,3-d]pyrimidine tyrosine kinase inhibitors.[Pubmed:9240345]

J Med Chem. 1997 Jul 18;40(15):2296-303.

Screening of a compound library for inhibitors of the fibroblast growth factor (FGFr) and platelet-derived growth factor (PDGFr) receptor tyrosine kinases led to the development of a novel series of ATP competitive pyrido[2,3-d]pyrimidine tyrosine kinase inhibitors. The initial lead, 1-[2-amino-6-(2,6-dichlorophenyl)pyrido[2,3-d]pyrimidin-7-yl]-3- tert-butylurea (4b, PD-089828), was found to be a broadly active tyrosine kinase inhibitor. Compound 4b inhibited the PDGFr, FGFr, EGFr, and c-src tyrosine kinases with IC50 values of 1.11, 0.13, 0.45, and 0.22 microM, respectively. Subsequent SAR studies led to the synthesis of new analogs with improved potency, solubility, and bioavailability relative to the initial lead. For example, the introduction of a [4-(diethylamino)butyl]amino side chain into the 2-position of 4b afforded compound 6c with enhanced potency and bioavailability. Compound 6c inhibited PDGF-stimulated vascular smooth muscle cell proliferation with an IC50 of 0.3 microM. Furthermore, replacement of the 6-(2,6-dichlorophenyl) moiety of 4b with a 6-(3',5'-dimethoxyphenyl) functionality produced a highly selective FGFr tyrosine kinase inhibitor 4e. Compound 4e inhibited the FGFr tyrosine kinase with an IC50 of 0.060 microM, whereas IC50s for the inhibition of the PDGFr, FGFr, EGFr, c-src, and InsR tyrosine kinases for this compound (4e) were all greater than 50 microM.

Description

PD-161570 is a potent and ATP-competitive human FGF-1 receptor inhibitor with an IC50 of 39.9 nM and a Ki of 42 nM. PD-161570 also inhibits the PDGFR, EGFR and c-Src tyrosine kinases with IC50 values of 310 nM, 240 nM, and 44 nM, respectively. PD-161570 inhibits PDGF-stimulated autophosphorylation and FGF-1 receptor phosphorylation with IC50s of 450 nM and 622 nM, respectively.

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