276866-90-1Relevant articles and documents
Discovery of G Protein-Biased Ligands against 5-HT7R
Lee, Jieon,Kwag, Rina,Lee, Soyeon,Kim, Doyoung,Woo, Jiwan,Cho, Yakdol,Kim, Hak Joong,Kim, Jeongjin,Jeon, Byungsun,Choo, Hyunah
, p. 7453 - 7467 (2021/06/21)
There has been significant attention concerning the biased agonism of G protein-coupled receptors (GPCRs), and it has resulted in various pharmacological benefits. 5-HT7R belongs to a GPCR, and it is a promising pharmaceutical target for the treatment of neurodevelopmental and neuropsychiatric disorders. Based on our previous research, we synthesized a series of 6-chloro-2′-methoxy biphenyl derivatives 1, 2, and 3 with a variety of amine scaffolds. These compounds were evaluated for their binding affinities to 5-HTR subtypes and their functional selectivity toward the Gs protein and the β-arrestin signaling pathways of 5-HT7R. Among them, 2-(6-chloro-2′-methoxy-[1,1′-biphenyl]-3-yl)-N-ethylethan-1-amine, 2b, was found to be a G-protein-biased ligand of 5-HT7R. In an in vivo study with Shank3 transgenic mice, the self-grooming behavior test was performed with 2b, which increased the duration of self-grooming. The experiments further suggested that 5-HT7R is associated with autism spectrum disorders (ASDs) and could be a therapeutic target for the treatment of stereotypy in ASDs.
5-HT7receptor modulators: Amino groups attached to biphenyl scaffold determine functional activity
Kim, Youngjae,Park, Hyeri,Lee, Jeongeun,Tae, Jinsung,Kim, Hak Joong,Min, Sun-Joon,Rhim, Hyewhon,Choo, Hyunah
, p. 180 - 190 (2016/08/02)
5-HT7receptor (5-HT7R) agonists and antagonists have been reported to be used for treatment of neuropathic pain and depression, respectively. In this study, as a novel scaffold for 5-HT7R modulators, we designed and prepared a series of biphenyl-3-yl-methanamine derivatives with various amino groups. Evaluation of functional activities as well as binding affinities of the title compounds identified partial agonists (EC50?=?0.55–3.2?μM) and full antagonists (IC50?=?5.57–23.1?μM) depending on the amino substituents. Molecular docking study suggested that the ligand-based switch in functional activity from agonist to antagonist results from the size of the amino groups and thereby different binding modes to 5-HT7R. In particular, interaction of the ligand with Arg367 of 5-HT7R is shown to differentiate agonists and antagonists. In the pharmacophore model study, two distinct pharmacophore models can tell whether a ligand is an agonist or an antagonist. Taken together, this study provides valuable information for designing novel compounds with selective agonistic or antagonistic properties against 5-HT7R.
Oxidative iodination of deactivated arenes in concentrated sulfuric acid with I2/NaIO4 and KI/NaIO4 iodinating systems
Kraszkiewicz, Lukasz,Sosnowski, Maciej,Skulski, Lech
, p. 1195 - 1199 (2007/10/03)
Deactivated arenes were mono- or diiodinated with strong electrophilic I+ reagents, which were prepared from NaIO4 and either I2 or KI in concentrated H2SO4 (minimum 95% by weight). In general a small excess of the dark brown iodinating solution was used (1.1/1.5 equivalents, for nitrobenzene two equivalents was required). The iodinations were conducted at 25-30 °C with a reaction time of 1-2 hours using either a 'direct' or an 'inverse' method of aromatic iodination to give mono- or diiodinated pure products in 31-91% optimized yields. Georg Thieme Verlag Stuttgart.