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Cong X, Zhuo Q, Hao N, Mishra A, Nishiura M, Hou Z. Divergent Synthesis of Multi-Substituted Aminotetralins via [4+2] Annulation of Aldimines with Alkenes by Rare-Earth-Catalyzed Benzylic C(sp 3 )-H Activation. Angew Chem Int Ed Engl 2024; 63:e202318203. [PMID: 38226440 DOI: 10.1002/anie.202318203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 01/17/2024]
Abstract
The search for efficient and selective methods for the divergent synthesis of multi-substituted aminotetralins is of much interest and importance. We report herein for the first time the diastereoselective [4+2] annulation of 2-methyl aromatic aldimines with alkenes via benzylic C(sp3 )-H activation by half-sandwich rare-earth catalysts, which constitutes an efficient route for the divergent synthesis of both trans and cis diastereoisomers of multi-substituted 1-aminotetralin derivatives from readily accessible aldimines and alkenes. The use of a scandium catalyst bearing a sterically demanding cyclopentadienyl ligand such as C5 Me4 SiMe3 or C5 Me5 exclusively afforded the trans-selective annulation products in the reaction of aldimines with styrenes and aliphatic alkenes. In contrast, the analogous yttrium catalyst, whose metal ion size is larger than that of scandium, yielded the cis-selective annulation products. This protocol features 100 % atom-efficiency, excellent diastereoselectivity, broad substrate scope, and good functional group compatibility. The reaction mechanisms have been elucidated by kinetic isotope effect (KIE) experiments and the isolation and transformations of some key reaction intermediates.
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Affiliation(s)
- Xuefeng Cong
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Qingde Zhuo
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Na Hao
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Aniket Mishra
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Masayoshi Nishiura
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Zhaomin Hou
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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Analysis of Binding Determinants for Different Classes of Competitive and Noncompetitive Inhibitors of Glycine Transporters. Int J Mol Sci 2022; 23:ijms23148050. [PMID: 35887394 PMCID: PMC9317360 DOI: 10.3390/ijms23148050] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/14/2022] [Accepted: 07/18/2022] [Indexed: 11/16/2022] Open
Abstract
Glycine transporters are interesting therapeutic targets as they play significant roles in glycinergic and glutamatergic systems. The search for new selective inhibitors of particular types of glycine transporters (GlyT-1 and GlyT-2) with beneficial kinetics is hampered by limited knowledge about the spatial structure of these proteins. In this study, a pool of homology models of GlyT-1 and GlyT-2 in different conformational states was constructed using the crystal structures of related transporters from the SLC6 family and the recently revealed structure of GlyT-1 in the inward-open state, in order to investigate their binding sites. The binding mode of the known GlyT-1 and GlyT-2 inhibitors was determined using molecular docking studies, molecular dynamics simulations, and MM-GBSA free energy calculations. The results of this study indicate that two amino acids, Gly373 and Leu476 in GlyT-1 and the corresponding Ser479 and Thr582 in GlyT-2, are mainly responsible for the selective binding of ligands within the S1 site. Apart from these, one pocket of the S2 site, which lies between TM3 and TM10, may also be important. Moreover, selective binding of noncompetitive GlyT-1 inhibitors in the intracellular release pathway is affected by hydrophobic interactions with Ile399, Met382, and Leu158. These results can be useful in the rational design of new glycine transporter inhibitors with desired selectivity and properties in the future.
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Recent developments in ligands and chemical probes targeting solute carrier transporters. Curr Opin Chem Biol 2021; 62:53-63. [PMID: 33689964 DOI: 10.1016/j.cbpa.2021.01.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/12/2021] [Accepted: 01/31/2021] [Indexed: 12/30/2022]
Abstract
Solute carrier (SLC) membrane transporters remain a largely unexploited target class, despite their central roles in cell identity and metabolism. This gap is reflected in the lack of high-quality chemical ligands or probes and in the small number of compounds that have progressed toward clinical development. In this review, we discuss recent advancements in SLC ligand discovery as well as new candidates that have been added to the investigational toolkit, with a particular focus on first-in-class ligands and the cognate discovery strategies. The availability of new probes expands the opportunity to elucidate the functions of SLCs and their relevance in physiology and explores any future potential of SLC druggability.
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Esposito C, Wang S, Lange UEW, Oellien F, Riniker S. Combining Machine Learning and Molecular Dynamics to Predict P-Glycoprotein Substrates. J Chem Inf Model 2020; 60:4730-4749. [DOI: 10.1021/acs.jcim.0c00525] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Carmen Esposito
- Laboratory of Physical Chemistry, ETH Zurich, Vladimir-Prelog-Weg 2, 8093 Zurich, Switzerland
| | - Shuzhe Wang
- Laboratory of Physical Chemistry, ETH Zurich, Vladimir-Prelog-Weg 2, 8093 Zurich, Switzerland
| | - Udo E. W. Lange
- Neuroscience Discovery, Medicinal Chemistry, AbbVie Deutschland GmbH & Co KG, Knollstrasse, 67061 Ludwigshafen, Germany
| | - Frank Oellien
- Neuroscience Discovery, Medicinal Chemistry, AbbVie Deutschland GmbH & Co KG, Knollstrasse, 67061 Ludwigshafen, Germany
| | - Sereina Riniker
- Laboratory of Physical Chemistry, ETH Zurich, Vladimir-Prelog-Weg 2, 8093 Zurich, Switzerland
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Boureghda C, Macé A, Berrée F, Roisnel T, Debache A, Carboni B. Ene reactions of 2-borylated α-methylstyrenes: a practical route to 4-methylenechromanes and derivatives. Org Biomol Chem 2019; 17:5789-5800. [PMID: 31135020 DOI: 10.1039/c9ob00963a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
4-Methylenechromanes were prepared via a three-step process from 2-borylated α-methylstyrenes. This sequence is based on a key glyoxylate-ene reaction catalyzed by scandium(iii) triflate. The resulting γ-hydroxy boronates, which cyclise to seven-membered homologues of benzoxaborole on silica gel, were cleanly oxidized with sodium perborate, and then cyclised under Mitsunobu conditions. Additionally, several further functional transformations of 4-methylenechromanes or their precursors were carried out to illustrate the synthetic potential of these intermediates.
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Affiliation(s)
- Chaima Boureghda
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
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MS binding assays for GlyT1 based on Org24598 as nonlabelled reporter ligand. Neuropharmacology 2019; 161:107561. [PMID: 30851306 DOI: 10.1016/j.neuropharm.2019.03.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 02/28/2019] [Accepted: 03/02/2019] [Indexed: 12/13/2022]
Abstract
In this study an alternative to radioligand binding assays addressing the glycine transporter 1 (GlyT1) based on quantification of a nonlabelled reporter ligand by means of mass spectrometry (MS) is presented. The established MS Binding Assays employ the GlyT1 inhibitor Org24598 as reporter ligand for which a highly sensitive LC-ESI-MS/MS (liquid chromatography electrospray ionization tandem mass spectrometry) method was developed. A validation of this LC-ESI-MS/MS method with respect to selectivity, linearity, accuracy and precision according to the FDA guidance demonstrated its reliability for quantification of Org24598 in binding experiments. For the implementation of GlyT1 binding experiments conditions in accordance to known GlyT1 radioligand binding assays and already known filtration based MS Binding Assays were chosen. In saturation experiments the affinity of Org24598 towards GlyT1 could be characterized with an equilibrium dissociation constant (Kd) of 16.8 ± 2.2 nM that is well in agreement with the affinity determined in radioligand binding assays. Finally, several known GlyT ligands were studied in competition experiments and the determined inhibition constants (Ki) compared with results from radioligand binding and uptake assays. The almost perfect correlation of the affinities obtained in the MS based binding experiments with results from literature clearly indicates that the established GlyT1 MS Binding Assays are a powerful substitute for the GlyT1 radioligand binding assays so far used for affinity profiling and screening. This article is part of the issue entitled 'Special Issue on Neurotransmitter Transporters'.
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Ai Y, Liu P, Liang R, Liu Y, Li F. The N-alkylation of sulfonamides with alcohols in water catalyzed by a water-soluble metal–ligand bifunctional iridium complex [Cp*Ir(biimH2)(H2O)][OTf]2. NEW J CHEM 2019. [DOI: 10.1039/c9nj02542a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A water-soluble dinuclear Cp*Ir complex bearing 4,4′,6,6′-tetrahydroxy-2,2′-bipyrimidine as a bridging ligand was found to be a highly effective catalyst for the N-alkylation of ketones with alcohols in water.
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Affiliation(s)
- Yao Ai
- School of Chemical Engineering
- Nanjing University of Science & Technology
- Nanjing 210094
- P. R. China
| | - Pengcheng Liu
- School of Chemical Engineering
- Nanjing University of Science & Technology
- Nanjing 210094
- P. R. China
| | - Ran Liang
- School of Chemical Engineering
- Nanjing University of Science & Technology
- Nanjing 210094
- P. R. China
| | - Yan Liu
- School of Chemical Engineering
- Nanjing University of Science & Technology
- Nanjing 210094
- P. R. China
| | - Feng Li
- School of Chemical Engineering
- Nanjing University of Science & Technology
- Nanjing 210094
- P. R. China
- State Key Laboratory of Fine Chemicals
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Wang Y, Zhao H, Brewer JT, Li H, Lao Y, Amberg W, Behl B, Akritopoulou-Zanze I, Dietrich J, Lange UEW, Pohlki F, Hoft C, Hornberger W, Djuric SW, Sydor J, Mezler M, Relo AL, Vasudevan A. De Novo Design, Synthesis, and Biological Evaluation of 3,4-Disubstituted Pyrrolidine Sulfonamides as Potent and Selective Glycine Transporter 1 Competitive Inhibitors. J Med Chem 2018; 61:7486-7502. [PMID: 29969029 DOI: 10.1021/acs.jmedchem.8b00295] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The development of glycine transporter 1 (GlyT1) inhibitors may offer putative treatments for schizophrenia and other disorders associated with hypofunction of the glutaminergic N-methyl-d-aspartate (NMDA) receptor. Herein, we describe the synthesis and biological evaluation of a series of 3,4-disubstituted pyrrolidine sulfonamides as competitive GlyT1 inhibitors that arose from de novo scaffold design. Relationship of chemical structure to drug-drug interaction (DDI) and bioactivation was mechanistically investigated. Murine studies were strategically incorporated into the screening funnel to provide early assessments of in vivo target occupancy (TO) by ex vivo binding studies. Advanced compounds derived from iterative structure-activity relationship (SAR) studies possessed high potency in ex vivo binding studies and good brain penetration, promising preliminary in vivo efficacy, acceptable preclinical pharmacokinetics, and manageable DDI and bioactivation liabilities.
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Affiliation(s)
- Ying Wang
- AbbVie Inc. , 1 North Waukegan Road , North Chicago , Illinois 60064 , United States
| | - Hongyu Zhao
- AbbVie Inc. , 1 North Waukegan Road , North Chicago , Illinois 60064 , United States
| | - Jason T Brewer
- AbbVie Inc. , 1 North Waukegan Road , North Chicago , Illinois 60064 , United States
| | - Huanqiu Li
- AbbVie Inc. , 1 North Waukegan Road , North Chicago , Illinois 60064 , United States
| | - Yanbin Lao
- AbbVie Inc. , 1 North Waukegan Road , North Chicago , Illinois 60064 , United States
| | - Willi Amberg
- Neuroscience Research , AbbVie Deutschland GmbH & Co. KG , Knollstrasse , 67061 Ludwigshafen , Germany
| | - Berthold Behl
- Neuroscience Research , AbbVie Deutschland GmbH & Co. KG , Knollstrasse , 67061 Ludwigshafen , Germany
| | | | - Justin Dietrich
- AbbVie Inc. , 1 North Waukegan Road , North Chicago , Illinois 60064 , United States
| | - Udo E W Lange
- Neuroscience Research , AbbVie Deutschland GmbH & Co. KG , Knollstrasse , 67061 Ludwigshafen , Germany
| | - Frauke Pohlki
- Neuroscience Research , AbbVie Deutschland GmbH & Co. KG , Knollstrasse , 67061 Ludwigshafen , Germany
| | - Carolin Hoft
- Neuroscience Research , AbbVie Deutschland GmbH & Co. KG , Knollstrasse , 67061 Ludwigshafen , Germany
| | - Wilfried Hornberger
- Neuroscience Research , AbbVie Deutschland GmbH & Co. KG , Knollstrasse , 67061 Ludwigshafen , Germany
| | - Stevan W Djuric
- AbbVie Inc. , 1 North Waukegan Road , North Chicago , Illinois 60064 , United States
| | - Jens Sydor
- Neuroscience Research , AbbVie Deutschland GmbH & Co. KG , Knollstrasse , 67061 Ludwigshafen , Germany
| | - Mario Mezler
- Neuroscience Research , AbbVie Deutschland GmbH & Co. KG , Knollstrasse , 67061 Ludwigshafen , Germany
| | - Ana Lucia Relo
- Neuroscience Research , AbbVie Deutschland GmbH & Co. KG , Knollstrasse , 67061 Ludwigshafen , Germany
| | - Anil Vasudevan
- AbbVie Inc. , 1 North Waukegan Road , North Chicago , Illinois 60064 , United States
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