Improvement of the Metabolic Stability of GPR88 Agonist RTI-13951-33: Design, Synthesis, and Biological Evaluation.
Improvement of the Metabolic Stability of GPR88 Agonist RTI-13951-33: Design, Synthesis, and Biological Evaluation.
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GPR88 激动剂 RTI-13951-33 代谢稳定性的改善:设计、合成和生物学评估。
DOI:
10.1021/acs.jmedchem.2c01983
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发表时间:
2023-02-23
影响因子:
7.3
通讯作者:
Jin, Chunyang
中科院分区:
文献类型:
--
作者:
Rahman, Md Toufiqur;Decker, Ann M.;Ben Hamida, Sami;Perrey, David A.;Lakmal, Hetti Handi Chaminda;Maitra, Rangan;Darcq, Emmanuel;Kieffer, Brigitte L.;Jin, Chunyang
GPR88 is an orphan G protein-coupled receptor mainly expressed in the brain, whose endogenous ligand has not yet been identified. To elucidate GPR88 functions, our group has developed RTI-13951–33 (1b) as the first in vivo active GPR88 agonist, but its poor metabolic stability and moderate brain permeability remain to be further optimized. Here, we report the design, synthesis, and pharmacological characterization of a new series of RTI-13951–33 analogues with the aim of improving pharmacokinetic properties. As a result, we identified a highly potent GPR88 agonist RTI-122 (30a) (cAMP EC50 = 11 nM) with good metabolic stability (half-life of 5.8 h) and brain permeability (brain/plasma ratio of >1) in mice. Notably, RTI-122 was more effective than RTI-13951–33 in attenuating the binge-like alcohol drinking behavior in the drinking-in-the-dark paradigm. Collectively, our findings suggest that RTI-122 is a promising lead compound for drug discovery research of GPR88 agonists.
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