Discovery of a novel 2-(1 H -pyrazolo[3,4- b ]pyridin-1-yl)thiazole derivative as an EP 1 receptor antagonist and in vivo studies in a bone fracture model

Autor: Masakazu Atobe, Kenji Naganuma, Takahiko Hayashi, Masashi Kawanishi, Hirokazu Arai, Hiroko Suzuki, Masahiro Nishida
Rok vydání: 2018
Předmět:
Zdroj: Bioorganic & Medicinal Chemistry Letters. 28:2408-2412
ISSN: 0960-894X
Popis: We describe a medicinal chemistry approach to the discovery of a novel EP1 antagonist exhibiting high potency and good pharmacokinetics. Our starting point is 1, an EP1 receptor antagonist that exhibits pharmacological efficacy in cystometry models following intravenous administration. Despite its good potency in vitro, the high lipophilicity of 1 is a concern in long-term in vivo studies. Further medicinal chemistry efforts identified 4 as an improved lead compound with good in vitro ADME profile applicable to long term in vivo studies. A rat fracture study was conducted with 4 for 4 weeks to validate its utility in bone fracture healing. The results suggest that this EP1 receptor antagonist stimulates callus formation and thus 4 has potential for enhancing fracture healing.
Databáze: OpenAIRE