| Bioactivity | TLR7 agonist 2 is a potent and selective Toll-like Receptor 7 (TLR7) agonist with a LEC of 0.4 μM. | ||||||||||||
| Target | LEC: 0.4 μM (TLR7) | ||||||||||||
| Invitro | TLR7 agonist 2 is a potent and selective Toll-like Receptor 7 (TLR7) agonist with a lowest effective concentration (LEC) of 0.4 μM in HEK293 cell. TLR7 agonist 2 is found to be selective for TLR7 over TLR8 with LEC of >100 μM for human TLR8. TLR7 agonist 2 demonstrates low inhibition across five CYP450 isozymes (IC50 >10 μM) and is also not a time dependent inhibitor of CYP450 3A4. TLR7 agonist 2 has limited inhibition of the hERG potassium ion channel 3H-dofetilide binding in vitro (IC50 >50 μM)[1]. | ||||||||||||
| In Vivo | TLR7 agonist 2 is found to be rapidly cleared in conjunction with our target profile. Both Cmax and AUC increase less than dose proportionally between 0.3 and 3 mg/kg and more than dose-proportionally between 3 and 10 mg/kg. TLR7 agonist 2 can induce an antiviral interferon stimulated gene (ISG) response without inducing an IFNα response at a low dose. TLR7 agonist 2 also induces a 2.7 log decrease in serum HBV viral load from 0.3 mg/kg, and a maximum 3.1 log decrease is observed for doses between 1 and 5 mg/kg[1]. | ||||||||||||
| Name | TLR7 agonist 2 | ||||||||||||
| CAS | 1642857-69-9 | ||||||||||||
| Formula | C17H16N6O2 | ||||||||||||
| Molar Mass | 336.35 | ||||||||||||
| Appearance | Solid | ||||||||||||
| Transport | Room temperature in continental US; may vary elsewhere. | ||||||||||||
| Storage |
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| Reference | [1]. McGowan DC, et al. Identification and Optimization of Pyrrolo[3,2-d]pyrimidine Toll-like Receptor 7 (TLR7) Selective Agonists for the Treatment of Hepatitis B. J Med Chem. 2017 Jul 27;60(14):6137-6151. |