AHR antagonist 5 free base

• CAT Number: I045261
• CAS Number: 2247950-42-9
• Molecular Formula: C25H24FN7
• Molecular Weight: 441.50
• Purity: ≥95%
• Synonyms: (3R)-N-[2-(5-fluoropyridin-3-yl)-8-propan-2-ylpyrazolo[1,5-a][1,3,5]triazin-4-yl]-2,3,4,9-tetrahydro-1H-carbazol-3-amine
• InChI: InChI=1S/C25H24FN7/c1-14(2)20-13-28-33-24(20)31-23(15-9-16(26)12-27-11-15)32-25(33)29-17-7-8-22-19(10-17)18-5-3-4-6-21(18)30-22/h3-6,9,11-14,17,30H,7-8,10H2,1-2H3,(H,29,31,32)/t17-/m1/s1
• InChIKey: QPFPBVPZIIDXGT-QGZVFWFLSA-N
• SMILES: CC(C)C1=C2N=C(N=C(N2N=C1)NC3CCC4=C(C3)C5=CC=CC=C5N4)C6=CC(=CN=C6)F

AHR antagonist 5 free base is a selective and orally active aryl hydrocarbon receptor (AHR) inhibitor. AHR antagonist 5 free base effectively blocks AHR from translocating from the cytoplasm to the nucleus. AHR antagonist 5 free base is highly selective for AHR over other receptors, transporters, and kinases[1].
AHR antagonist 5 free base (Compound A) potently inhibits AHR activity in human and rodent cell lines (IC50 of ~35-150 nM). In human T cell assays, AHR antagonist 5 free base induces an activated T cell state. AHR antagonist 5 free base inhibits CYP1A1 and interleukin (IL)-22 gene expression and leads to an increase in pro-inflammatory cytokines, such as IL-2 and IL-9[1].
AHR antagonist 5 free base (Compound A) has been evaluated in a series of pharmacological, single-dose and repeated-dose toxicological studies in rodent and non-rodent species including 28-day Good Laboratory Practice (GLP) studies in rat and monkeys. All changes are resolved or resolving after 2 weeks of dosing cessation, except for the testicular changes in rats[1].

Reference

[1]. Marta Sanchez-Martin, et al. Ahr inhibitors and uses thereof. WO2021142180A1.