CCT251236

• CAT Number: I005898
• CAS Number: 1693731-40-6
• Molecular Formula: C32H32N4O5
• Molecular Weight: 552.62
• Purity: ≥95%
• Synonyms: N-[5-(2,3-dihydro-1,4-benzodioxine-6-carbonylamino)-2-methylphenyl]-2-(2-pyrrolidin-1-ylethoxy)quinoline-6-carboxamide
• InChI: InChI=1S/C32H32N4O5/c1-21-4-8-25(33-31(37)24-6-10-28-29(19-24)40-17-16-39-28)20-27(21)35-32(38)23-5-9-26-22(18-23)7-11-30(34-26)41-15-14-36-12-2-3-13-36/h4-11,18-20H,2-3,12-17H2,1H3,(H,33,37)(H,35,38)
• InChIKey: KLHOCHQJHXNKAS-UHFFFAOYSA-N
• SMILES: CC1=C(C=C(C=C1)NC(=O)C2=CC3=C(C=C2)OCCO3)NC(=O)C4=CC5=C(C=C4)N=C(C=C5)OCCN6CCCC6

CCT251236 is an orally available pirin ligand from a heat shock transcription factor 1 (hsf1) phenotypic screen with an IC50 of 19 nM for inhibition of HSF1-mediated HSP72 induction.
CCT251236 (0-100 nM; 24hours) displays a desired balance of in vitro properties, while maintaining excellent cellular activity with a pIC50=7.73 ± 0.07 (IC50=19 nM) for inhibition of HSF1-mediated HSP72 induction. The free GI50 is 1.1 nM in SK-OV-3 cells that calculated from the free fraction in the cell assay[1].
CCT251236 (0-100 nM; 24 hours) blocks 17-AAG induced he HSF1-mediated heat-shock proteins, HSP72 and HSP27 expression as a concentration manner in SK-OV-3 cells[1].
CCT251236 (0-100 nM; 24 hours), pre-treated with 250 nM 17-AAG for 6h, blocks the induction of HSPA1A mRNA by 17-AAG in a dosedependent manner[1].
CCT251236 (oral adminstation; 5 or 20 mg/kg) in nontumor bearing immunocompetent BALB/c mice exhibits free Cav0-24h value of 2.0 nM and 1.2 nM, respectively[2].
CCT251236 (oral adminstation; 20 mg/kg; 33 days) has a clear therapeutic efficacy in mice with a tumor growth inhibition (%TGI) of 70% based on final tumor volumes. After 33 days, the mean tumor weights decreases 64% when compares to control group. In addition, the compound’s basicity and high volume of distribution shows in tumor withtumor concentrations of CCT251236 as high as 940 nM[2].

Reference

[1]. Cheeseman MD, et al. Discovery of a Chemical Probe Bisamide (CCT251236): An OrallyBioavailable Efficacious Pirin Ligand from a Heat ShockTranscription Factor 1 (HSF1) Phenotypic Screen. J Med Chem. 2017 Jan 12;60(1):180-201.
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