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Król M, Ślifirski G, Kleps J, Podsadni P, Materek I, Kozioł AE, Herold F. The Synthesis and Absolute Configuration of Enantiomeric Pure (R)- and (S)-3-(piperidin-3-yl)-1H-Indole Derivatives. Int J Mol Sci 2022; 24:ijms24010517. [PMID: 36613958 PMCID: PMC9820373 DOI: 10.3390/ijms24010517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/05/2022] [Accepted: 12/12/2022] [Indexed: 12/29/2022] Open
Abstract
This article describes the synthesis of new chiral 3-(piperidin-3-yl)-1H-indole derivatives (R)-10a-c and (S)-11a-c from the corresponding diastereomers: (3R, 2R) and (3S, 2R)-2-[3-(1H-indol-3-yl)-1-piperidyl]-2-phenyl-acetamides (3R, 2R)-4a, (3R, 2R)-6b, (3R, 2R)-8c and (3S, 2R)-5a, (3S, 2R)-7b, (3S, 2R)-9c. Diastereomers were obtained by N-alkylation of derivatives of racemic 3-(piperidin-3-yl)-1H-indoles 1a-c using (S)-2-(4-toluenesulfonyloxy)-phenylacetic amide (S)-II. The same method was applied to obtain (3R, 2S)-methyl-2-[3-(1H-indole-3-yl)-1-piperidyl]-2-phenylacetate (3R, 2S)-2a and (3S, 2S)-methyl-2-[3-(1H-indole-3-yl)-1-piperidyl]-2-phenylacetate (3S, 2S)-3a diastereomers by treating amine 1a with (R)-2-(4-toluenesulfonyloxy)-phenylacetic acid methylester (R)-I. Systematic studies via single crystal X-ray crystallography were used to determine the molecular structure of the racemates 1a-c and the absolute configuration of the enantiomers. The solid racemates 1b and 1c were "true racemates" crystallizing in a centrosymmetric space group, while 1a formed a racemic conglomerate of homoenantiomeric crystals. The absolute configuration was determined for the enantiomeric pairs (R)-10a/(S)-11a, (R)-10b/(S)-11b, and (R)-12c/(S)-13c, as well as for (3S,2S)-3a. Spectra of 1H, 13CNMR, HPLC, and HRMS for diastereomers and enantiomers were consistent with the determined structures.
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Affiliation(s)
- Marek Król
- Department of Drug Technology and Pharmaceutical Biotechnology, Faculty of Pharmacy, Medical University of Warsaw, 1, Banacha Street, 02-097 Warsaw, Poland
| | - Grzegorz Ślifirski
- Department of Drug Technology and Pharmaceutical Biotechnology, Faculty of Pharmacy, Medical University of Warsaw, 1, Banacha Street, 02-097 Warsaw, Poland
- Correspondence:
| | - Jerzy Kleps
- Department of Drug Technology and Pharmaceutical Biotechnology, Faculty of Pharmacy, Medical University of Warsaw, 1, Banacha Street, 02-097 Warsaw, Poland
| | - Piotr Podsadni
- Department of Drug Technology and Pharmaceutical Biotechnology, Faculty of Pharmacy, Medical University of Warsaw, 1, Banacha Street, 02-097 Warsaw, Poland
| | - Ilona Materek
- Faculty of Chemistry, Maria Curie-Skłodowska University, 3, M. Curie-Skłodowskiej Sq., 20-031 Lublin, Poland
| | - Anna E. Kozioł
- Faculty of Chemistry, Maria Curie-Skłodowska University, 3, M. Curie-Skłodowskiej Sq., 20-031 Lublin, Poland
| | - Franciszek Herold
- Department of Drug Technology and Pharmaceutical Biotechnology, Faculty of Pharmacy, Medical University of Warsaw, 1, Banacha Street, 02-097 Warsaw, Poland
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Nanda T, Ravikumar PC. A Palladium-Catalyzed Cascade C–C Activation of Cyclopropenone and Carbonylative Amination: Easy Access to Highly Functionalized Maleimide Derivatives. Org Lett 2020; 22:1368-1374. [DOI: 10.1021/acs.orglett.9b04656] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Tanmayee Nanda
- National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, HBNI, Jatani, Odisha 752050, India
| | - P. C. Ravikumar
- National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, HBNI, Jatani, Odisha 752050, India
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Xia Z, Zheng C, Liang X, Cai Y, You S. Manipulation of Spiroindolenine Intermediates for Enantioselective Synthesis of 3‐(Indol‐3‐yl)‐Pyrrolidines. Angew Chem Int Ed Engl 2019; 58:1158-1162. [DOI: 10.1002/anie.201812344] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Zi‐Lei Xia
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Chao Zheng
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Xiao‐Wei Liang
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Yue Cai
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Shu‐Li You
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
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Liang YX, Meng XH, Yang M, Mehfooz H, Zhao YL. Zn(OAc)2-catalyzed tandem cyclization of isocyanides, α-diazoketones, and anhydrides: a general route to polysubstituted maleimides. Chem Commun (Camb) 2019; 55:12519-12522. [DOI: 10.1039/c9cc05802h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A zinc-catalyzed three-component reaction of isocyanides, α-diazoketones, and anhydrides has been realized as a novel and efficient method for the synthesis of polysubstituted maleimides.
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Affiliation(s)
- Yong-Xin Liang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University
- Changchun 130024
- China
| | - Xiang-He Meng
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University
- Changchun 130024
- China
| | - Ming Yang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University
- Changchun 130024
- China
| | - Haroon Mehfooz
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University
- Changchun 130024
- China
| | - Yu-Long Zhao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University
- Changchun 130024
- China
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Xia Z, Zheng C, Liang X, Cai Y, You S. Manipulation of Spiroindolenine Intermediates for Enantioselective Synthesis of 3‐(Indol‐3‐yl)‐Pyrrolidines. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201812344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Zi‐Lei Xia
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Chao Zheng
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Xiao‐Wei Liang
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Yue Cai
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Shu‐Li You
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China
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Abstract
Alzheimer's disease (AD) is the most common form of dementia affecting millions of patients worldwide which can only be treated with symptomatic drugs. Among the numbers of biological targets which are today explored in order to prevent or limit the progression of AD, the modulation of 5-HT6R and 5-HT4R appeared to be promising. This modulation has been proved to enhance the cognition in AD through modulation of the neurotransmitter system but could also be beneficial in order to limit the amyloid pathology. This review will describe recent advances in the understanding of this modulation as well as the medicinal chemistry of 5-HT6R or 5-HT4R ligands from synthesis to ongoing clinical trials.
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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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Hu W, Zheng J, Li J, Liu B, Wu W, Liu H, Jiang H. Assembly of Polysubstituted Maleimides via Palladium-Catalyzed Cyclization Reaction of Alkynes with Isocyanides. J Org Chem 2016; 81:12451-12458. [PMID: 27978748 DOI: 10.1021/acs.joc.6b02227] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
An efficient and convenient palladium-catalyzed cyclization reaction of alkynes with isocyanides is described herein. This protocol allows the practical synthesis of many valuable polysubstituted maleimide derivatives after hydrolysis with a broad scope of substrates and mild reaction conditions. C-C, C═O, and C-N bonds were constructed in this transformation with isocyanide serving as both C and N sources.
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Affiliation(s)
- Weigao Hu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, China
| | - Jia Zheng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, China
| | - Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, China
| | - Bifu Liu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, China
| | - Haiyang Liu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, China
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Nirogi RVS, Bandyala TR, Gangadasari PR, Khagga M. Synthesis and biological evaluation of novel N1-phenylsulphonyl indole derivatives as potent and selective 5-HT6R ligands for the treatment of cognitive disorders. J Enzyme Inhib Med Chem 2016; 31:1-15. [DOI: 10.3109/14756366.2015.1103233] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | - Thrinath Reddy Bandyala
- Discovery Research, Suven Life Sciences Limited, Hyderabad, India and
- Centre for Chemical Sciences and Technology, Institute of Science and Technology, Jawaharlal Nehru Technological University Hyderabad, Hyderabad, India
| | | | - Mukkanti Khagga
- Centre for Chemical Sciences and Technology, Institute of Science and Technology, Jawaharlal Nehru Technological University Hyderabad, Hyderabad, India
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Dolci E, Froidevaux V, Joly-Duhamel C, Auvergne R, Boutevin B, Caillol S. Maleimides As a Building Block for the Synthesis of High Performance Polymers. POLYM REV 2016. [DOI: 10.1080/15583724.2015.1116094] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Nakano H, Kumagai J, V. Subba Reddy U, Seki C, Okuyama Y, Kwon E. Development of Asymmetric Cycloaddition Reaction Using Amino Alcohol and its Derivative as an Organocatalyst. J SYN ORG CHEM JPN 2016. [DOI: 10.5059/yukigoseikyokaishi.74.720] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kumagai J, Otsuki T, Subba Reddy U, Kohari Y, Seki C, Uwai K, Okuyama Y, Kwon E, Tokiwa M, Takeshita M, Nakano H. Chiral primary amino alcohol organobase catalysts for the asymmetric Diels–Alder reactions of anthrones with maleimides. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.10.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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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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Ivachtchenko AV. Sulfonyl-containing modulators of serotonin 5-HT6receptors and their pharmacophore models. RUSSIAN CHEMICAL REVIEWS 2014. [DOI: 10.1070/rc2014v083n05abeh004371] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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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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Ivachtchenko AV, Ivanenkov YA. 5HT(6) receptor antagonists: a patent update. Part 1. Sulfonyl derivatives. Expert Opin Ther Pat 2012; 22:917-64. [PMID: 22816965 DOI: 10.1517/13543776.2012.709236] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Among a variety of proteins included in a relatively wide GPCR family, serotonin 5HT receptors (5HT(6)Rs) are highly attractive as important biological targets with enormous clinical importance. Among this subclass, 5HT(6)R is the most recently discovered group. Available biological data clearly indicate that 5HT(6)R antagonists can be used as effective regulators in a variety of contexts, including memory formation, age-related cognitive impairments and memory deficits associated with conditions such as schizophrenia, Parkinson's disease and Alzheimer's disease. Therefore, this receptor has already attracted a considerable attention within the scientific community, due to its versatile therapeutic potential. AREAS COVERED The current paper is an update to the comprehensive review article published previously in Expert Opinion on Therapeutic Patents (see issue 20(7), 2010). Here, the main focus is on small-molecule compounds - 5HT(6) antagonists - which have been described in recent patent literature, since the end of 2009. To obtain a clear understanding of the situation and dynamic within the field of 5HT(6) ligands, having an obvious pharmaceutical potential in terms of related patents, a comprehensive search through several key patent collections have been provided. The authors describe the reported chemical classes and scaffolds in sufficient detail to provide a valuable insight in the 5HT(6)R chemistry and pharmacology. The review consists of two core parts with separate sections arranged in accordance with the main structural features of 5HT(6)R ligands. EXPERT OPINION Recent progress in the understanding of the 5HT(6) receptor function and structure includes a suggested constitutive activity for the receptor, development of a number of multimodal small molecule ligands and re-classification of many selective antagonists as pseudo-selective agents. Heterocycles with sulfonyl group and without any basic center provide sufficient supramolecular interactions and show high antagonistic activity against 5HT(6)R.
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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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