1. Cell Cycle/DNA Damage
  2. CDK

R547 

Cat. No.: HY-10014 Purity: 98.42%
Handling Instructions

R547 is a potent ATP-competitive inhibitor of CDK1/2/4 with Ki of 2 nM/3 nM/1 nM.

For research use only. We do not sell to patients.
R547 Chemical Structure

R547 Chemical Structure

CAS No. : 741713-40-6

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Free Sample (0.5-1 mg)   Apply now  
10 mM * 1 mL in DMSO USD 508 In-stock
10 mg USD 462 In-stock
100 mg USD 1716 In-stock
200 mg   Get quote  
500 mg   Get quote  

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    R547 purchased from MCE. Usage Cited in: Science. 2017 Dec 1;358(6367). pii: eaan4368.

    Kinobead western Blot readout for selected inhibitor:protein combinations.

    R547 purchased from MCE. Usage Cited in: Science. 2017 Dec 1;358(6367). pii: eaan4368.

    Immunoblot analysis in MV-4-11 cells and MOLM-13, FLT3-WT and FLT3-ITD transfected HEK293 cells, and Ba/F3 FLT3-ITD cells revealed FLT3 target engagement for Golvatinib and Cabozantinib.
    • Biological Activity

    • Protocol

    • Technical Information

    • Purity & Documentation

    • References

    Description

    R547 is a potent ATP-competitive inhibitor of CDK1/2/4 with Ki of 2 nM/3 nM/1 nM. IC50 Value: 2 nM(Ki for CDK1); 3 nM(Ki for CDK2); 1 nM(Ki for CDK4) Target: CDK in vitro: R547 effectively inhibits CDK1/cyclinB, CDK2/cyclinE, and CDK4/cyclinD1(Ki=1-3nM) and is inactive(Ki>5,000nM) against a panel of >120 unrelated kinases. R547 effectively inhibits the proliferation of tumor cell lines independent of multidrug resistant status, histologic type, retinoblastoma protein, or p53 status, with IC50s <0.60 μM. R547 reduces phosphorylation of the cellular retinoblastoma protein at specific CDK phosphorylation sites at the same concentrations that induced cell cycle arrest, suggesting a potential pharmaco dynamics marker for clinical use. R547 inhibits the proliferation of tumor cell lines and is active in all 19 cell lines tested irrespective of tissue of origin, multidrug resistance (MDR), p53, or retinoblastoma status. R547 possessing both 5-and 6-fluoro substitution culminated in an Inhibitor with low, single-digit nanomolar potency against the CDKs(Ki=0.001,0.003,and 0.001 μM for CDK1,CDK2, and CDK4,respectively) and excellent cellular potency (IC50=0.08 μM,HCT116 cell line). in vivo: R547 administered with oral and i.v. dosing in multiple established human tumor significantly inhibits tumor activity(P < 0.01). R547 administered orally at dose of 40 mg/kg daily in colon, lung, breast, prostate, and melanoma human tumor xenograft models shows significant TGI (79-99%). R547 is equally efficacious (TGI, 61-95%) when dosed with 40 mg/kg i.v. once weekly. These doses of R547 are not toxic and did not result in body weight loss. R547 does not show signs of overt toxicity during the course of the 3-week study and any gross pathology at necropsies done at the end of the studies. R547 inhibits tumor growth up to 95% in the HCT116 human colorectal tumor xenograft model in nude mice . R547 causes significant TGI in all of the models tested when dosed orally and i.v. at or below the maximum tolerated dose. R547 inhibits phosphorylation of retinoblastoma protein in tumors at the efficacious exposures in tumor xenograft models, providing a pharmacodynamic biomarker for clinical use. R547 reported here suggests that this is a promising molecule for evaluation in the treatment of solid tumors.

    References
    Molecular Weight

    441.45

    Formula

    C₁₈H₂₁F₂N₅O₄S

    CAS No.

    741713-40-6

    SMILES

    O=S(N1CCC(NC2=NC(N)=C(C(C3=C(C(F)=CC=C3OC)F)=O)C=N2)CC1)(C)=O

    Storage
    Powder -20°C 3 years
      4°C 2 years
    In solvent -80°C 6 months
      -20°C 1 month
    Shipping

    Room temperature in continental US; may vary elsewhere

    Solvent & Solubility

    10 mM in DMSO

    * "<1 mg/mL" means slightly soluble or insoluble. "≥" means soluble, but saturation unknown.

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    R547
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