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Discovery of a potent and selective small molecule hGPR91 antagonist.

Abstract：

:GPR91, a 7TM G-Protein-Coupled Receptor, has been recently deorphanized with succinic acid as its endogenous ligand. Current literature indicates that GPR91 plays role in various pathophysiology including renal hypertension, autoimmune disease and retinal angiogenesis. Starting from a small molecule high-throughput screening hit 1 (hGPR91 IC(50): 0.8 μM)-originally synthesized in Merck for Bradykinin B(1) Receptor (BK(1)R) program, systematic structure-activity relationship study led us to discover potent and selective hGPR91 antagonists e.g. 2c, 4c, and 5 g (IC(50): 7-35 nM; >1000 fold selective against hGPR99, a closest related GPCR; >100 fold selective in Drug Matrix screening). This initial work also led to identification of two structurally distinct and orally bio-available lead compounds: 5g (%F: 26) and 7e (IC(50): 180 nM; >100 fold selective against hGPR99; %F: 87). A rat pharmacodynamic assay was developed to characterize the antagonists in vivo using succinate induced increase in blood pressure. Using two representative antagonists, 2c and 4c, the GPR91 target engagement was subsequently demonstrated using the designed pharmacodynamic assay.

journal_name

Bioorg Med Chem Lett

journal_title

Bioorganic & medicinal chemistry letters

authors

Bhuniya D,Umrani D,Dave B,Salunke D,Kukreja G,Gundu J,Naykodi M,Shaikh NS,Shitole P,Kurhade S,De S,Majumdar S,Reddy SB,Tambe S,Shejul Y,Chugh A,Palle VP,Mookhtiar KA,Cully D,Vacca J,Chakravarty PK,Nargund RP,W

doi

10.1016/j.bmcl.2011.04.091

subject

Has Abstract

pub_date

2011-06-15 00:00:00

pages

3596-602

issue

12

eissn

0960-894X

issn

1464-3405

pii

S0960-894X(11)00561-0

journal_volume

21

pub_type

杂志文章

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