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Chen W, Li G, Wen F, Wang Q, Li Z. Concise Construction of 1‐Sulfonyl‐1
H
‐indoles Using Solid Calcium Carbide as a Surrogate of Gaseous Acetylene. ChemistrySelect 2023. [DOI: 10.1002/slct.202203855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Wei Chen
- College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou Gansu 730070 P. R. China
| | - Guorui Li
- College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou Gansu 730070 P. R. China
| | - Fei Wen
- College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou Gansu 730070 P. R. China
| | - Qian Wang
- College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou Gansu 730070 P. R. China
| | - Zheng Li
- College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou Gansu 730070 P. R. China
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2
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Arrieta-Rodríguez L, Espinoza-Rosales D, Vera G, Cho YH, Cabezas D, Vásquez-Velásquez D, Mella-Raipán J, Lagos CF, Recabarren-Gajardo G. Novel N-Arylsulfonylindoles Targeted as Ligands of the 5-HT 6 Receptor. Insights on the Influence of C-5 Substitution on Ligand Affinity. Pharmaceuticals (Basel) 2021; 14:ph14060528. [PMID: 34206083 PMCID: PMC8227400 DOI: 10.3390/ph14060528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 11/18/2022] Open
Abstract
A new series of twenty-two C-5 substituted N-arylsulfonylindoles was prepared with the aim of exploring the influence of C-5 substitution on 5-HT6 receptor affinity. Eleven compounds showed moderate to high affinity at the receptor (Ki = 58–403 nM), with compound 4d being identified as the most potent ligand. However, regarding C-5 substitution, both methoxy and fluorine were detrimental for receptor affinity compared to our previously published unsubstituted compounds. In order to shed light on these observations, we performed docking and molecular dynamics simulations with the most potent compounds of each series (4d and 4l) and PUC-10, a highly active ligand previously reported by our group. The comparison brings about deeper insight about the influence of the C-5 substitution on the binding mode of the ligands, suggesting that these replacements are detrimental to the affinity due to precluding a ligand from reaching deeper inside the binding site. Additionally, CoMFA/CoMSIA studies were performed to systematize the information of the main structural and physicochemical characteristics of the ligands, which are responsible for their biological activity. The CoMFA and CoMSIA models presented high values of q2 (0.653; 0.692) and r2 (0.879; 0.970), respectively. Although the biological activity of the ligands can be explained in terms of the steric and electronic properties, it depends mainly on the electronic nature.
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Affiliation(s)
- Loreto Arrieta-Rodríguez
- Bioactive Heterocycles Synthesis Laboratory (BHSL), Departamento de Farmacia, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile; (L.A.-R.); (D.E.-R.); (G.V.); (Y.H.C.)
| | - Daniela Espinoza-Rosales
- Bioactive Heterocycles Synthesis Laboratory (BHSL), Departamento de Farmacia, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile; (L.A.-R.); (D.E.-R.); (G.V.); (Y.H.C.)
| | - Gonzalo Vera
- Bioactive Heterocycles Synthesis Laboratory (BHSL), Departamento de Farmacia, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile; (L.A.-R.); (D.E.-R.); (G.V.); (Y.H.C.)
| | - Young Hwa Cho
- Bioactive Heterocycles Synthesis Laboratory (BHSL), Departamento de Farmacia, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile; (L.A.-R.); (D.E.-R.); (G.V.); (Y.H.C.)
| | - David Cabezas
- Instituto de Química y Bioquímica, Facultad de Ciencias, Universidad de Valparaíso, Avenida Gran Bretaña 1111, Valparaíso 2360102, Chile; (D.C.); (J.M.-R.)
- Centro de Investigación Farmacopea Chilena (CIFAR), Universidad de Valparaíso, Santa Marta 183, Valparaíso 2360134, Chile
| | - David Vásquez-Velásquez
- Drug Development Laboratory, Faculty of Chemical and Pharmaceutical Sciences, Universidad de Chile, Sergio Livingstone 1007, Santiago 8380492, Chile;
| | - Jaime Mella-Raipán
- Instituto de Química y Bioquímica, Facultad de Ciencias, Universidad de Valparaíso, Avenida Gran Bretaña 1111, Valparaíso 2360102, Chile; (D.C.); (J.M.-R.)
- Centro de Investigación Farmacopea Chilena (CIFAR), Universidad de Valparaíso, Santa Marta 183, Valparaíso 2360134, Chile
| | - Carlos F. Lagos
- Chemical Biology & Drug Discovery Lab, Escuela de Química y Farmacia, Facultad de Medicina y Ciencia, Universidad San Sebastián, Lota 2465, Providencia, Santiago 7510157, Chile;
| | - Gonzalo Recabarren-Gajardo
- Bioactive Heterocycles Synthesis Laboratory (BHSL), Departamento de Farmacia, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile; (L.A.-R.); (D.E.-R.); (G.V.); (Y.H.C.)
- Centro Interdisciplinario de Neurociencias, Pontificia Universidad Católica de Chile, Marcoleta 391, Santiago 8330024, Chile
- Correspondence: ; Tel.: +56-2-23541418
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Amodeo DA, Oliver B, Pahua A, Hitchcock K, Bykowski A, Tice D, Musleh A, Ryan BC. Serotonin 6 receptor blockade reduces repetitive behavior in the BTBR mouse model of autism spectrum disorder. Pharmacol Biochem Behav 2021; 200:173076. [DOI: 10.1016/j.pbb.2020.173076] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 11/06/2020] [Accepted: 11/17/2020] [Indexed: 12/18/2022]
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4
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Giri R, Alberts I, Harding WW. Synthesis, pharmacological evaluations, and molecular docking studies on a new 1,3,4,11b-tetrahydro-1H-fluoreno[9,1-cd]azepine framework: Rigidification of D 1 receptor selective 1-phenylbenzazepines and discovery of a new 5-HT 6 receptor scaffold. Chem Biol Drug Des 2020; 96:825-835. [PMID: 32279445 DOI: 10.1111/cbdd.13691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 03/22/2020] [Accepted: 03/26/2020] [Indexed: 12/21/2022]
Abstract
The novel 1,3,4,11b-tetrahydro-1H-fluoreno[9,1-cd]azepine framework, a structurally rigidified variant of the 1-phenylbenzazepine template, was synthesized via direct arylation as a key reaction. Evaluation of the binding affinities of the rigidified compounds across a battery of serotonin, dopamine, and adrenergic receptors indicates that this scaffold unexpectedly has minimal affinity for D1 and other dopamine receptors and is selective for the 5-HT6 receptor. The affinity of these systems at the 5-HT6 receptor is significantly influenced by electronic and hydrophobic interactions as well as the enhanced rigidity of the ligands. Molecular docking studies indicate that the reduced D1 receptor affinity of the rigidified compounds may be due in part to weaker H-bonding interactions between the oxygenated moieties on the compounds and specific receptor residues. Key receptor-ligand H-bonding interactions, salt bridges, and π-π interactions appear to be responsible for the 5-HT6 receptor affinity of the compounds. Compounds 10 (6,7-dimethoxy-2,3,4,11b-tetrahydro-1H-fluoreno[9,1-cd]azepine) and 12 (6,7-dimethoxy-2-methyl-2,3,4,11b-tetrahydro-1H-fluoreno[9,1-cd]azepine) have been identified as structurally novel, high affinity (Ki = 5 nM), selective 5-HT6 receptor ligands.
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Affiliation(s)
- Rajan Giri
- Department of Chemistry, Hunter College, City University of New York, NY, USA.,Ph.D. Program in Chemistry, CUNY Graduate Center, New York, NY, USA
| | - Ian Alberts
- Department of Natural Sciences, LaGuardia Community College, Long Island City, NY, USA
| | - Wayne W Harding
- Department of Chemistry, Hunter College, City University of New York, NY, USA.,Ph.D. Program in Chemistry, CUNY Graduate Center, New York, NY, USA.,Ph.D. Program in Biochemistry, CUNY Graduate Center, New York, NY, USA
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5
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Che Z, Tian Y, Liu S, Hu M, Chen G. Synthesis and in vitro anti-HIV-1 evaluation of some N-arylsulfonyl-3-formylindoles. BRAZ J PHARM SCI 2018. [DOI: 10.1590/s2175-97902018000317044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Zhiping Che
- Henan University of Science and Technology, China
| | - Yuee Tian
- Henan University of Science and Technology, China
| | | | - Mei Hu
- Henan University of Science and Technology, China
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6
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Kalinowska-Tłuścik J, Staroń J, Krawczuk A, Mordalski S, Warszycki D, Satała G, Hogendorf AS, Bojarski AJ. The effect of the intramolecular C–H⋯O interactions on the conformational preferences of bis-arylsulfones – 5-HT6 receptor antagonists and beyond. RSC Adv 2018; 8:18672-18681. [PMID: 35541096 PMCID: PMC9080534 DOI: 10.1039/c8ra03107j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 05/15/2018] [Indexed: 11/21/2022] Open
Abstract
The development of compounds with enhanced activity and selectivity by a conserved spatial orientation of the pharmacophore elements has a long history in medicinal chemistry. Rigidified compounds are an example of this concept. However, the intramolecular interactions were seldom used as a basis for conformational restraints. Here, we show the weak intramolecular interactions that contribute to the relatively well-conserved geometry of N1-arylsulfonyl indole derivatives. The structure analysis along with quantum mechanics calculations revealed a crucial impact of the sulfonyl group on the compound geometry. The weak intramolecular C–H⋯O interaction stabilizes the mutual "facing" orientation of two aromatic fragments. These findings extend the pharmacological interpretation of the sulfonyl group role from the double hydrogen bond acceptor to the conformational scaffold based on intramolecular forces. This feature has, to date, been omitted in in silico drug discovery. Our results should increase the awareness of researchers to consider the conformational preference when designing new compounds or improving computational methods. The impact of weak intramolecular C–H⋯O interactions on the conformational stability of bis-arylsulfones is discussed, suggesting different role of sulfonyl group in the ligand – 5HT6 receptor interaction.![]()
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Affiliation(s)
- Justyna Kalinowska-Tłuścik
- Department of Crystal Chemistry and Crystal Physic
- Faculty of Chemistry
- Jagiellonian University
- 30-387 Kraków
- Poland
| | - Jakub Staroń
- Department of Medicinal Chemistry
- Institute of Pharmacology Polish Academy of Sciences
- 31-343 Kraków
- Poland
| | - Anna Krawczuk
- Department of Crystal Chemistry and Crystal Physic
- Faculty of Chemistry
- Jagiellonian University
- 30-387 Kraków
- Poland
| | - Stefan Mordalski
- Department of Medicinal Chemistry
- Institute of Pharmacology Polish Academy of Sciences
- 31-343 Kraków
- Poland
| | - Dawid Warszycki
- Department of Medicinal Chemistry
- Institute of Pharmacology Polish Academy of Sciences
- 31-343 Kraków
- Poland
| | - Grzegorz Satała
- Department of Medicinal Chemistry
- Institute of Pharmacology Polish Academy of Sciences
- 31-343 Kraków
- Poland
| | - Adam S. Hogendorf
- Department of Crystal Chemistry and Crystal Physic
- Faculty of Chemistry
- Jagiellonian University
- 30-387 Kraków
- Poland
| | - Andrzej J. Bojarski
- Department of Medicinal Chemistry
- Institute of Pharmacology Polish Academy of Sciences
- 31-343 Kraków
- Poland
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7
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Structure-activity relationships studies on weakly basic N -arylsulfonylindoles with an antagonistic profile in the 5-HT 6 receptor. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.03.067] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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8
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Nirogi R, Shinde A, Kambhampati RS, Mohammed AR, Saraf SK, Badange RK, Bandyala TR, Bhatta V, Bojja K, Reballi V, Subramanian R, Benade V, Palacharla RC, Bhyrapuneni G, Jayarajan P, Goyal V, Jasti V. Discovery and Development of 1-[(2-Bromophenyl)sulfonyl]-5-methoxy-3-[(4-methyl-1-piperazinyl)methyl]-1H-indole Dimesylate Monohydrate (SUVN-502): A Novel, Potent, Selective and Orally Active Serotonin 6 (5-HT 6) Receptor Antagonist for Potential Treatment of Alzheimer's Disease. J Med Chem 2017; 60:1843-1859. [PMID: 28212021 DOI: 10.1021/acs.jmedchem.6b01662] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Optimization of a novel series of 3-(piperazinylmethyl) indole derivatives as 5-hydroxytryptamine-6 receptor (5-HT6R) antagonists resulted in identification of 1-[(2-bromophenyl)sulfonyl]-5-methoxy-3-[(4-methyl-1-piperazinyl)methyl]-1H-indole dimesylate monohydrate (5al, SUVN-502) as a clinical candidate for potential treatment of cognitive disorders. It has high affinity at human 5-HT6R (Ki = 2.04 nM) and selectivity over 100 target sites which include receptors, enzymes, peptides, growth factors, ion channels, steroids, immunological factors, second messengers, and prostaglandins. It has high selectivity over 5-HT2A receptor. It is orally bioavailable and brain penetrant with robust preclinical efficacy. The combination of 5al, donepezil, and memantine (triple combination) produces synergistic effects in extracellular levels of acetylcholine in the ventral hippocampus. Preclinical efficacy in triple combination and high selectivity over 5-HT2A receptors are the differentiating features which culminated in selection of 5al for further development. The Phase-1 evaluation of safety and pharmacokinetics has been completed, allowing for the initiation of a Phase-2 proof of concept study.
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Affiliation(s)
- Ramakrishna Nirogi
- Discovery Research, Suven Life Sciences Ltd , Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Anil Shinde
- Discovery Research, Suven Life Sciences Ltd , Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Rama Sastry Kambhampati
- Discovery Research, Suven Life Sciences Ltd , Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Abdul Rasheed Mohammed
- Discovery Research, Suven Life Sciences Ltd , Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Sangram Keshari Saraf
- Discovery Research, Suven Life Sciences Ltd , Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Rajesh Kumar Badange
- Discovery Research, Suven Life Sciences Ltd , Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Thrinath Reddy Bandyala
- Discovery Research, Suven Life Sciences Ltd , Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Venugopalarao Bhatta
- Discovery Research, Suven Life Sciences Ltd , Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Kumar Bojja
- Discovery Research, Suven Life Sciences Ltd , Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Veena Reballi
- Discovery Research, Suven Life Sciences Ltd , Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Ramkumar Subramanian
- Discovery Research, Suven Life Sciences Ltd , Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Vijay Benade
- Discovery Research, Suven Life Sciences Ltd , Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Raghava Choudary Palacharla
- Discovery Research, Suven Life Sciences Ltd , Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Gopinadh Bhyrapuneni
- Discovery Research, Suven Life Sciences Ltd , Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Pradeep Jayarajan
- Discovery Research, Suven Life Sciences Ltd , Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Vinod Goyal
- Discovery Research, Suven Life Sciences Ltd , Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Venkat Jasti
- Discovery Research, Suven Life Sciences Ltd , Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
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9
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Che Z, Tian Y, Hu Z, Chen Y, Liu S, Chen G. Synthesis and in vitro anti-HIV-1 activity of a series of N-arylsulfonyl-3-propionylindoles. ACTA ACUST UNITED AC 2016; 71:105-9. [PMID: 27124676 DOI: 10.1515/znc-2015-0122] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Accepted: 03/30/2016] [Indexed: 11/15/2022]
Abstract
Fifteen N-arylsulfonyl-3-propionylindoles (3a-o) were prepared and preliminarily evaluated as in vitro inhibitors of human immunodeficiency virus type-1 (HIV-1). Three compounds 3c, 3g and 3i exhibited potent anti-HIV-1 activity with effective concentration (EC(50)) values of 0.8, 4.0 and 1.2 μg/mL, and therapeutic index (TI) values of 11.7, 16.6 and 84.1, respectively. N-(m-Nitro)phenylsulfonyl-3-propionyl-6-methylindole (3i) exhibited the most promising and best activity against HIV-1 replication. The cytotoxicity of these compounds was assessed as well.
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10
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Extended N-Arylsulfonylindoles as 5-HT₆ Receptor Antagonists: Design, Synthesis & Biological Evaluation. Molecules 2016; 21:molecules21081070. [PMID: 27537868 PMCID: PMC6273627 DOI: 10.3390/molecules21081070] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 08/06/2016] [Accepted: 08/08/2016] [Indexed: 01/16/2023] Open
Abstract
Based on a known pharmacophore model for 5-HT6 receptor antagonists, a series of novel extended derivatives of the N-arylsulfonyindole scaffold were designed and identified as a new class of 5-HT6 receptor modulators. Eight of the compounds exhibited moderate to high binding affinities and displayed antagonist profile in 5-HT6 receptor functional assays. Compounds 2-(4-(2-methoxyphenyl)piperazin-1-yl)-1-(1-tosyl-1H-indol-3-yl)ethanol (4b), 1-(1-(4-iodophenylsulfonyl)-1H-indol-3-yl)-2-(4-(2-methoxyphenyl)piperazin-1-yl)ethanol (4g) and 2-(4-(2-methoxyphenyl)piperazin-1-yl)-1-(1-(naphthalen-1-ylsulfonyl)-1H-indol-3-yl)ethanol (4j) showed the best binding affinity (4b pKi = 7.87; 4g pKi = 7.73; 4j pKi = 7.83). Additionally, compound 4j was identified as a highly potent antagonist (IC50 = 32 nM) in calcium mobilisation functional assay.
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Karila D, Freret T, Bouet V, Boulouard M, Dallemagne P, Rochais C. Therapeutic Potential of 5-HT6 Receptor Agonists. J Med Chem 2015; 58:7901-12. [PMID: 26099069 DOI: 10.1021/acs.jmedchem.5b00179] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Given its predominant expression in the central nervous system (CNS), 5-hydroxytryptamine (5-HT: serotonin) subtype 6 receptor (5-HT6R) has been considered as a valuable target for the development of CNS drugs with limited side effects. After 2 decades of intense research, numerous selective ligands have been developed to target this receptor; this holds potential interest for the treatment of neuropathological disorders. In fact, some agents (mainly antagonists) are currently undergoing clinical trial. More recently, a series of potent and selective agonists have been developed, and preclinical studies have been conducted that suggest the therapeutic interest of 5-HT6R agonists. This review details the medicinal chemistry of these agonists, highlights their activities, and discusses their potential for treating cognitive issues associated with Alzheimer's disease (AD), depression, or obesity. Surprisingly, some studies have shown that both 5-HT6R agonists and antagonists exert similar procognitive activities. This article summarizes the hypotheses that could explain this paradox.
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Affiliation(s)
- Delphine Karila
- UNICAEN, CERMN (Centre d'Etudes et de Recherche sur le Médicament de Normandie), Université de Caen Basse-Normandie , F-14032 Caen, France
| | - Thomas Freret
- UNICAEN, GMPc (Groupe Mémoire et Plasticité Comportementale), Université de Caen Basse-Normandie , F-14032 Caen, France
| | - Valentine Bouet
- UNICAEN, GMPc (Groupe Mémoire et Plasticité Comportementale), Université de Caen Basse-Normandie , F-14032 Caen, France
| | - Michel Boulouard
- UNICAEN, GMPc (Groupe Mémoire et Plasticité Comportementale), Université de Caen Basse-Normandie , F-14032 Caen, France
| | - Patrick Dallemagne
- UNICAEN, CERMN (Centre d'Etudes et de Recherche sur le Médicament de Normandie), Université de Caen Basse-Normandie , F-14032 Caen, France
| | - Christophe Rochais
- UNICAEN, CERMN (Centre d'Etudes et de Recherche sur le Médicament de Normandie), Université de Caen Basse-Normandie , F-14032 Caen, France
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12
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NIROGI RAMAKRISHNAVS, BADANGE RAJESHKUMAR, KANDUKURI KIRANKUMAR, KHAGGA MUKKANTI. [3-[(1-Methylpiperidin-4-yl) methyl] arylsulfonyl]-1H-indoles: Synthesis, SAR and biological evaluation as a novel class of 5-HT6 Receptor Antagonists. J CHEM SCI 2015. [DOI: 10.1007/s12039-015-0800-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Partial agonist efficacy of EMD386088, a 5-HT6 receptor ligand, in functional in vitro assays. Pharmacol Rep 2014; 65:998-1005. [PMID: 24145094 DOI: 10.1016/s1734-1140(13)71081-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 02/18/2013] [Indexed: 11/23/2022]
Abstract
BACKGROUND Over recent years, the 5-hydroxytryptamine6 (5-HT6) receptor has emerged as a promising molecular target which interacts with several central nervous system acting drugs. In animal models, both agonists and antagonists of this receptor exhibit equivalent potency and efficacy as potential antidepressants, anxiolytics and anti-obesity or anti-dementia drugs. EMD386088 (5-chloro-2-methyl-3-(1,2,3,6-tetrahydro-4-pyridinyl)-1H-indole hydrochloride) has been described as a high affinity 5-HT6 receptor ligand with a full agonist activity and with moderate affinity for 5-HT3 sites. METHODS We have extended these data by broadening its profile for other, not yet tested, monoaminergic, GABA(A), opioid μ receptors and serotonin transporter (SERT) and we have conducted functional in vitro assays; i.e., measurement of cAMP by homogeneous TR-FRET immunoassay and HTRF method made by CEREP as well as aequorin-based calcium flux assay. RESULTS In two in vitro models based on cAMP formation, maximal efficacy values for EMD386088 were 65 and 31%, for in house and CEREP experiments, respectively. In a model based on calcium response, the studied compound showed 46% of maximal serotonin (5-HT) signal. EMD386088 antagonizes 5-HT response in increasing concentrations from 10(-9) to 10(-6) M. CONCLUSIONS The present in vitro findings confirm that EMD386088 is a selective 5-HT6 receptor ligand with moderate affinity for 5-HT3 sites only and it behaves as a potent partial agonist of 5-HT6 receptor with varying levels of agonist intrinsic activity, depending on a method employed. In view of these results, caution is recommended in the interpretation of pharmacological in vivo studies with EMD386088.
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14
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Benhamú B, Martín-Fontecha M, Vázquez-Villa H, Pardo L, López-Rodríguez ML. Serotonin 5-HT6 Receptor Antagonists for the Treatment of Cognitive Deficiency in Alzheimer’s Disease. J Med Chem 2014; 57:7160-81. [DOI: 10.1021/jm5003952] [Citation(s) in RCA: 120] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Bellinda Benhamú
- Departamento
de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Mar Martín-Fontecha
- Departamento
de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Henar Vázquez-Villa
- Departamento
de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Leonardo Pardo
- Laboratori
de Medicina Computacional, Unitat de Bioestadística, Facultat
de Medicina, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Barcelona, Spain
| | - María L. López-Rodríguez
- Departamento
de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
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15
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Geldenhuys WJ, Van der Schyf CJ. The serotonin 5-HT6receptor: a viable drug target for treating cognitive deficits in Alzheimer’s disease. Expert Rev Neurother 2014; 9:1073-85. [DOI: 10.1586/ern.09.51] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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16
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Devegowda VN, Hong JR, Cho S, Lim EJ, Choo H, Keum G, Rhim H, Nam G. Synthesis and the 5-HT6 receptor antagonistic effect of 3-arylsulfonylamino-5,6-dihydro-6-substituted pyrazolo[3,4]pyridinones for neuropathic pain treatment. Bioorg Med Chem Lett 2013; 23:4696-700. [DOI: 10.1016/j.bmcl.2013.05.100] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 05/28/2013] [Accepted: 05/30/2013] [Indexed: 01/09/2023]
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17
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Antagonists of serotonin 5-HT6 receptors. iv. synthesis and structure-activity interactions in amines containing the 3-(arylsulfonyl)-2-(methylthio)pyrazolo[1,5-a]pyrimidine fragment. Pharm Chem J 2013. [DOI: 10.1007/s11094-013-0853-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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18
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Nirogi RV, Badange R, Kambhampati R, Chindhe A, Deshpande AD, Tiriveedhi V, Kandikere V, Muddana N, Abraham R, Khagga M. Design, synthesis and pharmacological evaluation of 4-(piperazin-1-yl methyl)-N1-arylsulfonyl indole derivatives as 5-HT6 receptor ligands. Bioorg Med Chem Lett 2012; 22:7431-5. [DOI: 10.1016/j.bmcl.2012.10.057] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Revised: 09/18/2012] [Accepted: 10/11/2012] [Indexed: 10/27/2022]
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19
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Szalata C, Szymoniak J, Fabis F, Butt-Gueulle S, Rault S, Bertus P, Gérard S, Sapi J. Cyclopropyl-tryptamine analogues: synthesis and biological evaluation as 5-HT(6) receptor ligands. ChemMedChem 2012; 8:70-3. [PMID: 23129513 DOI: 10.1002/cmdc.201200396] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Indexed: 11/06/2022]
Abstract
Conformational restrictions: Based on the pharmacophore model for 5-HT(6) receptor ligands (shown), tryptamine analogues bearing a cyclopropyl ring on the α-position of the tryptamine side chain were synthesized and evaluated against 5-HT receptors. N,N-Dimethyl-1-arylsulfonyltryptamine derivatives exhibited promising selectivity for 5-HT(6) over 5-HT(1a) and 5-HT(4) receptors and interesting activity against 5-HT(6) (K(i) =∼0.15 μM; IC(50) =∼0.20 μM).
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Affiliation(s)
- Claude Szalata
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312 (ex 6229), Faculté de Pharmacie, Université de Reims-Champagne-Ardenne, 51096 Reims Cedex and UFR Sciences, 51687, Reims Cedex 2, France
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20
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Nirogi RV, Konda JB, Kambhampati R, Shinde A, Bandyala TR, Gudla P, Kandukuri KK, Jayarajan P, Kandikere V, Dubey P. N,N-Dimethyl-[9-(arylsulfonyl)-2,3,4,9-tetrahydro-1H-carbazol-3-yl]amines as novel, potent and selective 5-HT6 receptor antagonists. Bioorg Med Chem Lett 2012; 22:6980-5. [DOI: 10.1016/j.bmcl.2012.06.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2012] [Revised: 05/22/2012] [Accepted: 06/01/2012] [Indexed: 11/27/2022]
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21
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Ivachtchenko AV, Golovina ES, Kadieva MG, Kysil VM, Mitkin OD, Okun IM. Serotonin 5-HT6 receptor antagonists. II. Synthesis and structure—activity relationship of 3-arylsulfonyl-2-methylthiopyrazolo[1,5-a]pyrimidines with substituents containing an amine in the 6-position. Pharm Chem J 2012. [DOI: 10.1007/s11094-012-0794-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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Synthesis and biological evaluation of benzoisothiazole derivatives possessing N,N-dimethylformimidamide group as 5-HT₆ receptor antagonists. Bioorg Med Chem 2012; 20:2707-12. [PMID: 22405919 DOI: 10.1016/j.bmc.2012.02.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Revised: 02/07/2012] [Accepted: 02/07/2012] [Indexed: 11/23/2022]
Abstract
A series of novel N,N-dimethyl-N'-(5-(Ar-sulfonamido) benzo[d]isothiazol-3-yl)formimidamides was designed and synthesized as 5-HT(6) ligands. Here N,N-dimethyl formimidamides was used as a replacement for an aminoethyl moiety. In vitro functional assays demonstrated compounds 9b and 9i significantly inhibited the 5-HT-induced Ca(2+) increases (9b; IC(50)=0.36 μM and 9i; IC(50)=0.44 μM), indicating that 9b and 9i were potent 5-HT(6) receptor antagonists. Compounds 9i also showed good selectivity on the 5-HT(6) over 5-HT(4) and 5-HT(7) receptors.
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23
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Ivachtchenko AV, Golovina ES, Kadieva MG, Kysil VM, Mitkin OD, Tkachenko SE, Okun IM. Synthesis and Structure–Activity Relationship (SAR) of (5,7-Disubstituted 3-phenylsulfonyl-pyrazolo[1,5-a]pyrimidin-2-yl)-methylamines as Potent Serotonin 5-HT6 Receptor (5-HT6R) Antagonists. J Med Chem 2011; 54:8161-73. [DOI: 10.1021/jm201079g] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alexandre V. Ivachtchenko
- Department
of Organic Chemistry, Chemical Diversity Research Institute, 114401 Khimki,
Moscow Region, Russia
- ChemDiv, Inc., 6605 Nancy Ridge Drive, San Diego, California
92121, United States
| | - Elena S. Golovina
- Department
of Molecular Pharmacology, Chemical Diversity Research Institute, 114401 Khimki,
Moscow Region, Russia
| | - Madina G. Kadieva
- Department
of Organic Chemistry, Chemical Diversity Research Institute, 114401 Khimki,
Moscow Region, Russia
| | - Volodymyr M. Kysil
- ChemDiv, Inc., 6605 Nancy Ridge Drive, San Diego, California
92121, United States
| | - Oleg D. Mitkin
- Department
of Organic Chemistry, Chemical Diversity Research Institute, 114401 Khimki,
Moscow Region, Russia
| | - Sergey E. Tkachenko
- ChemDiv, Inc., 6605 Nancy Ridge Drive, San Diego, California
92121, United States
| | - Ilya M. Okun
- ChemDiv, Inc., 6605 Nancy Ridge Drive, San Diego, California
92121, United States
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24
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5-HT6 receptor signal transduction second messenger systems. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2011; 94:89-110. [PMID: 21081203 DOI: 10.1016/b978-0-12-384976-2.00004-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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25
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Rigidized 1-aryl sulfonyl tryptamines: Synthesis and pharmacological evaluation as 5-HT6 receptor ligands. Bioorg Med Chem Lett 2011; 21:4577-80. [DOI: 10.1016/j.bmcl.2011.05.106] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2011] [Revised: 05/25/2011] [Accepted: 05/27/2011] [Indexed: 11/23/2022]
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26
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Zhang X, Andren PE, Glennon RA, Svenningsson P. Distribution, level, pharmacology, regulation, and signaling of 5-HT6 receptors in rats and marmosets with special reference to an experimental model of parkinsonism. J Comp Neurol 2011; 519:1816-27. [DOI: 10.1002/cne.22605] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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27
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1-(Arylsulfonyl)-2,3-dihydro-1H-quinolin-4-one derivatives as 5-HT6 serotonin receptor ligands. Bioorg Med Chem Lett 2011; 21:698-703. [DOI: 10.1016/j.bmcl.2010.12.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2010] [Revised: 11/25/2010] [Accepted: 12/01/2010] [Indexed: 11/21/2022]
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28
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Nirogi RVS, Kothmirkar P, Kambhampati R, Konda JB, Arepalli S, Pamuleti NG, Deshpande AD, Bandyala T, Shinde AK, Dubey PK. Novel and Potent 5-Piperazinyl Methyl-N 1-aryl Sulfonyl Indole Derivatives as 5-HT6 Receptor Ligands. ACS Med Chem Lett 2010; 1:340-4. [PMID: 24900216 DOI: 10.1021/ml100101u] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2010] [Accepted: 06/06/2010] [Indexed: 11/30/2022] Open
Abstract
The exclusive distribution of 5-HT6 receptors in the brain regions associated with learning and memory makes it an ideal target for cognitive disorders. A novel series of 5-piperazinyl methyl-N 1-aryl sulfonyl indoles were designed and synthesized as 5-HT6R ligands. Most of the synthesized compounds are potent when tested by in vitro radioligand binding assay. The lead compound from the series does not have the CYP liabilities and is active in an animal model of cognition.
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Affiliation(s)
- Ramakrishna V. S. Nirogi
- Discovery Research, Suven Life Sciences Limited, Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Prabhakar Kothmirkar
- Discovery Research, Suven Life Sciences Limited, Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Ramasastri Kambhampati
- Discovery Research, Suven Life Sciences Limited, Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Jagadish Babu Konda
- Discovery Research, Suven Life Sciences Limited, Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Sobhanadri Arepalli
- Discovery Research, Suven Life Sciences Limited, Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Narasimhareddy G. Pamuleti
- Discovery Research, Suven Life Sciences Limited, Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Amol D. Deshpande
- Discovery Research, Suven Life Sciences Limited, Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Trinathreddy Bandyala
- Discovery Research, Suven Life Sciences Limited, Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Anil K. Shinde
- Discovery Research, Suven Life Sciences Limited, Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - P. K. Dubey
- Department of Chemistry, Jawaharlal Nehru Technological University Hyderabad
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29
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Liu KG, Robichaud AJ, Bernotas RC, Yan Y, Lo JR, Zhang MY, Hughes ZA, Huselton C, Zhang GM, Zhang JY, Kowal DM, Smith DL, Schechter LE, Comery TA. 5-Piperazinyl-3-sulfonylindazoles as Potent and Selective 5-Hydroxytryptamine-6 Antagonists. J Med Chem 2010; 53:7639-46. [DOI: 10.1021/jm1007825] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | | | | | | | - Christine Huselton
- Drug Safety and Metabolism, Wyeth Research, 500 Arcola Road, Collegeville, Pennsylvania 19426, United States
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30
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Ivachtchenko AV, Dmitriev DE, Golovina ES, Kadieva MG, Koryakova AG, Kysil VM, Mitkin OD, Okun IM, Tkachenko SE, Vorobiev AA. (3-Phenylsulfonylcycloalkano[e and d]pyrazolo[1,5-a]pyrimidin-2-yl)amines: potent and selective antagonists of the serotonin 5-HT6 receptor. J Med Chem 2010; 53:5186-96. [PMID: 20560595 DOI: 10.1021/jm100350r] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
5-HT(6) receptors are exclusively localized in the CNS and have high affinity with many psychotropic agents. Though the role of this receptor in many CNS diseases is widely anticipated, lack of definite progress in the development of 5-HT(6) receptor-oriented drugs indicates a need for further discoveries of novel chemotypes with high potency and high selectivity to the receptor. Here we present preparations and biological evaluation of a series of (3-phenylsulfonylcycloalkano[e and d]pyrazolo[1,5-a]pyrimidin-2-yl)amines. Phenylsulfonylcyclopentapyrazolopyrimidine 7 was found to be a highly selective 5-HT(6) receptor antagonist with high affinity (low picomolar range) and potency. 7 and a few of its analogues were further tested for biological effect on 5-HT(2B) receptors and hERG potassium channels, potential liability targets. Such liability appears to be minimal, based on the in vitro data.
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Affiliation(s)
- Alexandre V Ivachtchenko
- Department of Organic Chemistry, Chemical Diversity Research Institute, 114401 Khimki, Moscow Reg, Russia
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31
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Ivachtchenko AV, Ivanenkov YA, Tkachenko SE. 5-hydroxytryptamine subtype 6 receptor modulators: a patent survey. Expert Opin Ther Pat 2010; 20:1171-96. [DOI: 10.1517/13543776.2010.494661] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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32
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Ran JQ, Huang N, Xu H, Yang LM, Lv M, Zheng YT. Anti HIV-1 agents 5: Synthesis and anti-HIV-1 activity of some N-arylsulfonyl-3-acetylindoles in vitro. Bioorg Med Chem Lett 2010; 20:3534-6. [DOI: 10.1016/j.bmcl.2010.04.132] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2009] [Revised: 04/18/2010] [Accepted: 04/28/2010] [Indexed: 11/27/2022]
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33
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de la Fuente T, Martín-Fontecha M, Sallander J, Benhamú B, Campillo M, Medina RA, Pellissier LP, Claeysen S, Dumuis A, Pardo L, López-Rodríguez ML. Benzimidazole derivatives as new serotonin 5-HT6 receptor antagonists. Molecular mechanisms of receptor inactivation. J Med Chem 2010; 53:1357-69. [PMID: 20078106 DOI: 10.1021/jm901672k] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
On the basis of our previously described pharmacophore model for serotonin 5-HT(6) receptor (5-HT(6)R) antagonists, we have designed, synthesized, and pharmacologically characterized a series of benzimidazole derivatives 1-20 that represent a new family of potent antagonists at the human 5-HT(6)R. Site-directed mutagenesis and a beta(2)-adrenoceptor-based homology model of the 5-HT(6)R were used to predict the mode of binding of antagonist SB-258585 and the new synthesized ligands. Substitution of W6.48, F6.52, or N6.55 by Ala fully impedes compound 4 to block 5-HT-induced activation. Thus, we propose that D3.32 in TM 3 anchors the protonated piperazine ring, the benzimidazole ring expands parallel to EL 2 to hydrogen bond N6.55 in TM 6, and the aromatic ring is placed between TMs 3 and 5 in CH(2)-containing compounds and between TMs 3 and 6 in CO-containing compounds. This combined experimental and computational study has permitted to propose the molecular mechanisms by which the new benzimidazole derivatives act as 5-HT(6)R antagonists.
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Affiliation(s)
- Tania de la Fuente
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
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34
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3-(Arylsulfonyl)-1-(azacyclyl)-1H-indoles are 5-HT6 receptor modulators. Bioorg Med Chem Lett 2010; 20:1657-60. [DOI: 10.1016/j.bmcl.2010.01.073] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2009] [Revised: 01/07/2010] [Accepted: 01/11/2010] [Indexed: 11/17/2022]
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35
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Baxter CA, Cleator E, Alam M, Davies AJ, Goodyear A, O’Hagan M. A Novel Approach to 3-Methylindoles by a Heck/Cyclization/Isomerization Process. Org Lett 2010; 12:668-71. [DOI: 10.1021/ol902636v] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Carl A. Baxter
- Department of Process Research, Merck Sharp and Dohme Research Laboratories, Hertford Road, Hoddesdon, Hertfordshire, EN11 9BU, United Kingdom
| | - Ed Cleator
- Department of Process Research, Merck Sharp and Dohme Research Laboratories, Hertford Road, Hoddesdon, Hertfordshire, EN11 9BU, United Kingdom
| | - Mahbub Alam
- Department of Process Research, Merck Sharp and Dohme Research Laboratories, Hertford Road, Hoddesdon, Hertfordshire, EN11 9BU, United Kingdom
| | - Antony J. Davies
- Department of Process Research, Merck Sharp and Dohme Research Laboratories, Hertford Road, Hoddesdon, Hertfordshire, EN11 9BU, United Kingdom
| | - Adrian Goodyear
- Department of Process Research, Merck Sharp and Dohme Research Laboratories, Hertford Road, Hoddesdon, Hertfordshire, EN11 9BU, United Kingdom
| | - Michael O’Hagan
- Department of Process Research, Merck Sharp and Dohme Research Laboratories, Hertford Road, Hoddesdon, Hertfordshire, EN11 9BU, United Kingdom
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36
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37
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Xu H, Wang Y. An Efficient Synthesis ofN-Arylsulfonylindoles from Indoles and Arylsulfonyl Chlorides in the Presence of Triethyl-benzylammonium Chloride (TEBA) and NaOH. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.201090028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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38
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Bernotas RC, Antane SA, Lenicek SE, Haydar SN, Robichaud AJ, Harrison BL, Zhang GM, Smith D, Coupet J, Schechter LE. 1-(2-Aminoethyl)-3-(arylsulfonyl)-1H-pyrrolopyridines are 5-HT6 receptor ligands. Bioorg Med Chem Lett 2009; 19:6935-8. [DOI: 10.1016/j.bmcl.2009.10.067] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2009] [Revised: 10/14/2009] [Accepted: 10/15/2009] [Indexed: 11/16/2022]
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39
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Alcalde E, Mesquida N, López-Pérez S, Frigola J, Mercè R, Holenz J, Pujol M, Hernández E. Indene-based frameworks targeting the 5-HT6 serotonin receptor: ring constraint in indenylsulfonamides using cyclic amines and structurally abbreviated counterparts. Bioorg Med Chem 2009; 17:7387-97. [PMID: 19758807 DOI: 10.1016/j.bmc.2009.08.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2009] [Revised: 07/30/2009] [Accepted: 08/03/2009] [Indexed: 10/20/2022]
Abstract
Further studies in quest of 5-HT(6) serotonin receptor ligands led to the design and synthesis of a few selected examples of N-(inden-5-yl)sulfonamides with a ring-constrained aminoethyl side chain at the indene 3-position, some of which exhibited a high binding affinity, such as the pyrrolidine analogue 28 (K(i)=3nM). Moreover, the structurally abbreviated N-(inden-5-yl)sulfonamides showed K(i) values > or = 43 nM, which indicates that neither the N,N-aminoethyl nor the conformationally restricted aminoethyl side arm at the indene 3-position are required for binding. Selected compounds were then tested in a functional cAMP stimulation assay and found to act as 5-HT(6) antagonists, although with moderate potency at the micromolar level.
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Affiliation(s)
- Ermitas Alcalde
- Laboratori de Química Orgànica, Departament de Farmacologia i Química Terapèutica, Facultat de Farmàcia, Universitat de Barcelona, Avda. Joan XXIII s/n, 08028 Barcelona, Spain.
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40
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Novel 1-aminoethyl-3-arylsulfonyl-1H-pyrrolo[2,3-b]pyridines are potent 5-HT6 agonists. Bioorg Med Chem 2009; 17:5153-63. [DOI: 10.1016/j.bmc.2009.05.055] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2009] [Revised: 05/21/2009] [Accepted: 05/22/2009] [Indexed: 11/22/2022]
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41
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Liu KG, Robichaud AJ. 5-HT6antagonists as potential treatment for cognitive dysfunction. Drug Dev Res 2009. [DOI: 10.1002/ddr.20293] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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42
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Alcalde E, Mesquida N, López-Pérez S, Frigola J, Mercè R. Indene-Based Scaffolds. 2. An Indole−Indene Switch: Discovery of Novel Indenylsulfonamides as 5-HT6 Serotonin Receptor Agonists. J Med Chem 2009; 52:675-87. [DOI: 10.1021/jm8009469] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ermitas Alcalde
- Laboratori de Química Orgànica, Departament de Farmacologia i Química Terapèutica, Facultat de Farmàcia, Universitat de Barcelona, Avda. Joan XXIII s/n, E-08028 Barcelona, Spain, ESTEVE, Av. Mare de Déu de Montserrat, 221, E-08041 Barcelona, Spain
| | - Neus Mesquida
- Laboratori de Química Orgànica, Departament de Farmacologia i Química Terapèutica, Facultat de Farmàcia, Universitat de Barcelona, Avda. Joan XXIII s/n, E-08028 Barcelona, Spain, ESTEVE, Av. Mare de Déu de Montserrat, 221, E-08041 Barcelona, Spain
| | - Sara López-Pérez
- Laboratori de Química Orgànica, Departament de Farmacologia i Química Terapèutica, Facultat de Farmàcia, Universitat de Barcelona, Avda. Joan XXIII s/n, E-08028 Barcelona, Spain, ESTEVE, Av. Mare de Déu de Montserrat, 221, E-08041 Barcelona, Spain
| | - Jordi Frigola
- Laboratori de Química Orgànica, Departament de Farmacologia i Química Terapèutica, Facultat de Farmàcia, Universitat de Barcelona, Avda. Joan XXIII s/n, E-08028 Barcelona, Spain, ESTEVE, Av. Mare de Déu de Montserrat, 221, E-08041 Barcelona, Spain
| | - Ramon Mercè
- Laboratori de Química Orgànica, Departament de Farmacologia i Química Terapèutica, Facultat de Farmàcia, Universitat de Barcelona, Avda. Joan XXIII s/n, E-08028 Barcelona, Spain, ESTEVE, Av. Mare de Déu de Montserrat, 221, E-08041 Barcelona, Spain
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43
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Liu KG, Lo JR, Comery TA, Zhang GM, Zhang JY, Kowal DM, Smith DL, Di L, Kerns EH, Schechter LE, Robichaud AJ. Identification of a series of benzoxazoles as potent 5-HT6 ligands. Bioorg Med Chem Lett 2009; 19:1115-7. [PMID: 19152787 DOI: 10.1016/j.bmcl.2008.12.107] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2008] [Revised: 12/20/2008] [Accepted: 12/30/2008] [Indexed: 11/26/2022]
Abstract
As part of our continuing efforts to identify therapeutics for CNS diseases such as schizophrenia and Alzheimer's disease (AD), we have been focused on the 5-HT(6) receptor in order to identify potent and selective ligands as a potential treatment for cognitive dysfunction. Herein we report the identification of a novel series of benzoxazole derivatives as potent 5-HT(6) ligands. The synthesis and detailed SAR of this class of compounds are reported. The compounds have been shown to be full antagonists in a cyclic AMP functional assay.
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Affiliation(s)
- Kevin G Liu
- Chemical & Screening Sciences, Wyeth Research, CN 8000, Princeton, NJ 08543, USA.
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Fan LL, Liu WQ, Xu H, Yang LM, Lv M, Zheng YT. Anti Human Immunodeficiency Virus-1 (HIV-1) Agents 3. Synthesis and in Vitro Anti-HIV-1 Activity of Some N-Arylsulfonylindoles. Chem Pharm Bull (Tokyo) 2009; 57:797-800. [DOI: 10.1248/cpb.57.797] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Ling-Ling Fan
- Laboratory of Pharmaceutical Design & Synthesis, College of Sciences, Northwest A&F University
| | - Wu-Qing Liu
- Laboratory of Molecular Immunopharmacology, Key Laboratory of Animal Models and Human Diseases Mechanisms, Kunming Institute of Zoology, Chinese Academy of Sciences
- Graduate School of the Chinese Academy of Sciences
| | - Hui Xu
- Laboratory of Pharmaceutical Design & Synthesis, College of Sciences, Northwest A&F University
| | - Liu-Meng Yang
- Laboratory of Molecular Immunopharmacology, Key Laboratory of Animal Models and Human Diseases Mechanisms, Kunming Institute of Zoology, Chinese Academy of Sciences
| | - Min Lv
- Laboratory of Pharmaceutical Design & Synthesis, College of Sciences, Northwest A&F University
| | - Yong-Tang Zheng
- Laboratory of Molecular Immunopharmacology, Key Laboratory of Animal Models and Human Diseases Mechanisms, Kunming Institute of Zoology, Chinese Academy of Sciences
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Raoul M, Patigny D, Fabis F, Dauphin F, Rault S, Sapi J, Laronze JY. N-Arylsulfonyl-2-vinyltryptamines as new 5-HT6serotonin receptor Ligands. J Enzyme Inhib Med Chem 2008; 21:251-60. [PMID: 16918072 DOI: 10.1080/14756360600700285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
Several new 2-vinyl-Nb,Nb-dimethyltryptamines were prepared using Fischer indole synthesis followed by simple functional group transformations and evaluated on 5-HT4, 5-HT5, 5-HT6 and 5-HT7 serotonin receptors. It was found that 2-vinyl substitution conferred a potent and selective 5-HT6 binding activity to these molecules which could be enhanced by Na-arylsulfonyl substituents.
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Affiliation(s)
- Marion Raoul
- FRE CNRS 2715 Isolement, Structure, Transformations et Synthise de Substances Naturelles, IFR 53 Biomolicules, Faculté de Pharmacie, Université de Reims-Champagne-Ardenne, 51 rue Cognacq-Jay, Reims, France
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Liu KG, Lo JR, Comery TA, Zhang GM, Zhang JY, Kowal DM, Smith DL, Di L, Kerns EH, Schechter LE, Robichaud AJ. A regiospecific synthesis of a series of 1-sulfonyl azepinoindoles as potent 5-HT6 ligands. Bioorg Med Chem Lett 2008; 18:3929-31. [DOI: 10.1016/j.bmcl.2008.06.030] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2008] [Revised: 06/04/2008] [Accepted: 06/09/2008] [Indexed: 10/21/2022]
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Dukat M, Mosier PD, Kolanos R, Roth BL, Glennon RA. Binding of serotonin and N1-benzenesulfonyltryptamine-related analogs at human 5-HT6 serotonin receptors: receptor modeling studies. J Med Chem 2008; 51:603-11. [PMID: 18201064 DOI: 10.1021/jm070910s] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A population of 100 graphics models of the human 5-HT6 serotonin receptor was constructed based on the structure of bovine rhodopsin. The endogenous tryptamine-based agonist serotonin (5-HT; 1) and the benzenesulfonyl-containing tryptamine-derived 5-HT6 receptor antagonist MS-245 (4a) were automatically docked with each of the 100 receptor models using a genetic algorithm approach. Similar studies were conducted with the more selective 5-HT6 receptor agonist EMDT (5) and optical isomers of EMDT-related analog 8, as well as with optical isomers of MS-245 (4a)-related and benzenesulfonyl-containing pyrrolidine 6 and aminotetralin 7. Although associated with the same general aromatic/hydrophobic binding cluster, 5-HT (1) and MS-245 (4a) were found to preferentially bind with distinct receptor conformations, and did so with different binding orientations (i.e., poses). A 5-HT pose/model was found to be common to EMDT (5) and its analogs, whereas that identified for MS-245 (4a) was found common to benzenesulfonyl-containing compounds. Specific amino acid residues were identified that can participate in binding, and evaluation of a sulfenamide analog of MS-245 indicates for the first time that the presence of the sulfonyl oxygen atoms enhances receptor affinity. The results indicate that the presence or absence of an N1-benzenesulfonyl group is a major determinant of the manner in which tryptamine-related agents bind at 5-HT6 serotonin receptors.
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Affiliation(s)
- Małgorzata Dukat
- Department of Medicinal Chemistry, School of Pharmacy, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond, VA 23298-0540, USA
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Recent Advances on the 5-HT5A, 5-HT6 and 5-HT7 Receptors. ANNUAL REPORTS IN MEDICINAL CHEMISTRY 2008. [DOI: 10.1016/s0065-7743(08)00002-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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Seong CM, Park WK, Park CM, Kong JY, Park NS. Discovery of 3-aryl-3-methyl-1H-quinoline-2,4-diones as a new class of selective 5-HT6 receptor antagonists. Bioorg Med Chem Lett 2008; 18:738-43. [DOI: 10.1016/j.bmcl.2007.11.045] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2007] [Revised: 10/11/2007] [Accepted: 11/13/2007] [Indexed: 11/16/2022]
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Selective 5-HT6 receptor ligands: progress in the development of a novel pharmacological approach to the treatment of obesity and related metabolic disorders. Pharmacol Ther 2007; 117:207-31. [PMID: 18068807 DOI: 10.1016/j.pharmthera.2007.08.006] [Citation(s) in RCA: 154] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2007] [Accepted: 08/31/2007] [Indexed: 12/16/2022]
Abstract
The increasing global prevalence of obesity unequivocally demonstrates that neither behavioural (diet and exercise) nor pharmacological approaches to this health problem are working. In this area of high unmet clinical need, the 5-HT6 receptor has generated enormous interest amongst academic and pharmaceutical industry scientists as a molecular target for the development of a new generation of safe and more effective anti-obesity drugs. In this review, we have described the major developments that have occurred in the fields of the medicinal chemistry and pharmacology of 5-HT6 ligands, with particular emphasis on their potential application as novel anti-obesity drugs. The last 5 years have witnessed an increasing understanding of the 5-HT6 receptor and its structural requirements that has produced an explosion in the number and diversity of novel, highly selective 5-HT6 receptor agonists, partial agonists and antagonists that have been designed and synthesized. In animal models, 5-HT6 receptor ligands of all functional types have been shown to decrease food intake when given acutely and chronically, to evoke profound and sustained weight-loss in obese animals, and concomitantly to improve a number of cardio-metabolic risk factors. Comparator studies in obese animal models, which are highly predictive of clinical outcomes, indicate that 5-HT6 ligands may have the potential to be more efficacious in the treatment of obesity than the current generation of anti-obesity drugs.
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