产品
编 号:F273711
分子式:C30H28BrCl2N5O4
分子量:673.38
产品类型
结构图
CAS No: 215258-13-2
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产品详情
生物活性:
FR167344 free base is an orally active, nonpeptide bradykinin receptor B2 antagonist. FR167344 free base shows a high affinity binding to the B2 receptor with an IC50 value of 65 nM and no binding affinity for the B1 receptor.
体内研究:
Oral administration of FR167344 inhibits carrageenin-induced paw oedema in rats with an ID50 of 2.7 mg/kg at 2h after carrageenin injection. Oral administration of FR167344 inhibits kaolin-induced writhing in mice with an ID50 of 2.8 mg/kg in 10 min writhing and 4.2 mg/kg in 15 min writhing. Oral administration of FR167344 inhibits caerulein-induced pancreatic oedema with an ID50 of 13.8 mg/kg as well as increases in amylase and lipase of blood samples with ID50 of 10.3 and 7.4 mg/kg, respectively, in rats.
体外研究:
In competitive experiments using membranes prepared from Chinese hamster ovary cells expressing the bradykinin receptor subtypes, FR167344 shows a high affinity binding to the B2 receptor with IC50 values of 65 nM, and no binding affinity for the B1 receptor. FR167344 inhibits the B2 receptor-mediated phosphatidylinositol (PI) hydrolysis and produces a concentration-dependent rightward shift in the dose-response curve to bradykinin. This shift is accompanied by a progressive reduction of maximal response. Estimated pA2 values for the antagonism of bradykinin induced PI hydrolysis by FR167344 is 8.0. FR167344 shows no stimulatory effects on PI hydrolysis.