1
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Lacker CR, DeLano TJ, Chen EP, Kong J, Belyk KM, Piou T, Reisman SE. Enantioselective Synthesis of N-Benzylic Heterocycles by Ni/Photoredox Dual Catalysis. J Am Chem Soc 2022; 144:20190-20195. [PMID: 36288571 PMCID: PMC10326726 DOI: 10.1021/jacs.2c07917] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An asymmetric cross-coupling of α-N-heterocyclic trifluoroborates with aryl bromides using Ni/photoredox dual catalysis has been developed. This C(sp2)-C(sp3) cross-coupling provides access to pharmaceutically relevant chiral N-benzylic heterocycles in good to excellent enantioselectivity when bioxazolines (BiOX) are used as the chiral ligand. High-throughput experimentation significantly streamlined reaction development by identifying BiOX ligands for further investigation and by allowing for rapid optimization of conditions for new trifluoroborate salts.
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Affiliation(s)
- Caitlin R. Lacker
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Travis J. DeLano
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Emily P. Chen
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Jongrock Kong
- Department of Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Kevin M. Belyk
- Department of Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Tiffany Piou
- Department of Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Sarah E. Reisman
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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2
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Yadav N, Saquib M, Arya KK, Hussain MK. A Versatile New Approach to Bridgehead Nitrogen Bearing Benzimidazolo-Quinazoline Hybrids: Facile 1,4-Dipolar Cycloaddition of Benzyne and N-(1 H-Benzo[ d]Imidazol-2-yl)-1-Phenylmethanimines. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2105907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Nisha Yadav
- Department of Chemistry, Dayanand Arya Kanya Degree College Moradabad (M.J.P. Rohilkhand University), Bareilly, India
| | - Mohammad Saquib
- Department of Chemistry, University of Allahabad, Prayagraj (Allahabad), India
| | - Krishan Kumar Arya
- Department of Chemistry, Government Model Degree College, Arniya, Bulandshahar, India
| | - Mohd Kamil Hussain
- Department of Chemistry, Government Raza P.G. College (M.J.P. Rohilkhand University), Rampur, India
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3
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Molnár M, Treuerne Balázs KE, Madarász Z, Nyerges M. New reactions of 3,4‐dihydro‐6,7‐dimethoxyisoquinoline ylide with nitrile derivatives. J Heterocycl Chem 2022. [DOI: 10.1002/jhet.4496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Márk Molnár
- Servier Research Institute of Medicinal Chemistry, 7 Záhony street Budapest Hungary
| | - Krisztina E. Treuerne Balázs
- School of Pharmacy, Faculty of Medicine and Health N214, Pharmacy and Bank Building A15, The University of Sydney NSW Australia
| | - Zoltán Madarász
- Servier Research Institute of Medicinal Chemistry, 7 Záhony street Budapest Hungary
| | - Miklós Nyerges
- Servier Research Institute of Medicinal Chemistry, 7 Záhony street Budapest Hungary
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4
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Danyliuk IY, Tolmachova VS, Rusanov EB, Vovk MV. A convenient approach to the synthesis of 1-halomethyl-substituted 2,4,5,6-tetrahydro-1H-imidazo[1,2-a][1]benzazepines. Chem Heterocycl Compd (N Y) 2022. [DOI: 10.1007/s10593-021-03042-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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5
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Zheng Y, Stafford PM, Stover KR, Mohan DC, Gupta M, Keske EC, Schiavini P, Villar L, Wu F, Kreft A, Thomas K, Raaphorst E, Pasangulapati JP, Alla SR, Sharma S, Mittapalli RR, Sagamanova I, Johnson SL, Reed MA, Weaver DF. A Series of 2-((1-Phenyl-1H-imidazol-5-yl)methyl)-1H-indoles as Indoleamine 2,3-Dioxygenase 1 (IDO1) Inhibitors. ChemMedChem 2021; 16:2195-2205. [PMID: 33759400 DOI: 10.1002/cmdc.202100107] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 03/19/2021] [Indexed: 12/17/2022]
Abstract
Indoleamine 2,3-dioxygenase 1 (IDO1) is a promising therapeutic target in cancer immunotherapy and neurological disease. Thus, searching for highly active inhibitors for use in human cancers is now a focus of widespread research and development efforts. In this study, we report the structure-based design of 2-(5-imidazolyl)indole derivatives, a series of novel IDO1 inhibitors which have been designed and synthesized based on our previous study using N1-substituted 5-indoleimidazoles. Among these, we have identified one with a strong IDO1 inhibitory activity (IC50 =0.16 μM, EC50 =0.3 μM). Structural-activity relationship (SAR) and computational docking simulations suggest that a hydroxyl group favorably interacts with a proximal Ser167 residue in Pocket A, improving IDO1 inhibitory potency. The brain penetrance of potent compounds was estimated by calculation of the Blood Brain Barrier (BBB) Score and Brain Exposure Efficiency (BEE) Score. Many compounds had favorable scores and the two most promising compounds were advanced to a pharmacokinetic study which demonstrated that both compounds were brain penetrant. We have thus discovered a flexible scaffold for brain penetrant IDO1 inhibitors, exemplified by several potent, brain penetrant, agents. With this promising scaffold, we provide herein a basis for further development of brain penetrant IDO1 inhibitors.
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Affiliation(s)
- Yong Zheng
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada
| | - Paul M Stafford
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada
| | - Kurt R Stover
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada
| | - Darapaneni Chandra Mohan
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada
| | - Mayuri Gupta
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada
| | - Eric C Keske
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada
| | - Paolo Schiavini
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada
| | - Laura Villar
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada
| | - Fan Wu
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada
| | - Alexander Kreft
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada
| | - Kiersten Thomas
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada
| | - Elana Raaphorst
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada
| | - Jagadeesh P Pasangulapati
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada
| | - Siva R Alla
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada
| | - Simmi Sharma
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada
| | - Ramana R Mittapalli
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada
| | - Irina Sagamanova
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada
| | - Shea L Johnson
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada
| | - Mark A Reed
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada.,Department of Chemistry, University of Toronto, Toronto, ON M55 3H6, Canada
| | - Donald F Weaver
- Krembil Research Institute, University Health Network, 60 Leonard Avenue, Toronto, ON M5T 2S8, Canada.,Department of Chemistry, University of Toronto, Toronto, ON M55 3H6, Canada.,Department of Medicine, Division of Neurology, University of Toronto, Toronto, ON M5S 1A8, Canada
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6
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Vega Alanis BA, Iorio MT, Silva LL, Bampali K, Ernst M, Schnürch M, Mihovilovic MD. Allosteric GABA A Receptor Modulators-A Review on the Most Recent Heterocyclic Chemotypes and Their Synthetic Accessibility. Molecules 2020; 25:E999. [PMID: 32102309 PMCID: PMC7070463 DOI: 10.3390/molecules25040999] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/18/2020] [Accepted: 02/19/2020] [Indexed: 11/17/2022] Open
Abstract
GABAA receptor modulators are structurally almost as diverse as their target protein. A plethora of heterocyclic scaffolds has been described as modulating this extremely important receptor family. Some made it into clinical trials and, even on the market, some were dismissed. This review focuses on the synthetic accessibility and potential for library synthesis of GABAA receptor modulators containing at least one heterocyclic scaffold, which were disclosed within the last 10 years.
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Affiliation(s)
- Blanca Angelica Vega Alanis
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/193, 1060 Vienna, Austria; (B.A.V.A.); (M.T.I.); (M.D.M.)
| | - Maria Teresa Iorio
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/193, 1060 Vienna, Austria; (B.A.V.A.); (M.T.I.); (M.D.M.)
| | - Luca L. Silva
- Department of Anesthesiology and Intensive Care Medicine, Charité–Universitätsmedizin, Charitéplatz 1, 10117 Berlin, Germany;
| | - Konstantina Bampali
- Department of Molecular Neurosciences, Center for Brain Research, Medical University of Vienna, Spitalgasse 4, 1090 Vienna, Austria;
| | - Margot Ernst
- Department of Molecular Neurosciences, Center for Brain Research, Medical University of Vienna, Spitalgasse 4, 1090 Vienna, Austria;
| | - Michael Schnürch
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/193, 1060 Vienna, Austria; (B.A.V.A.); (M.T.I.); (M.D.M.)
| | - Marko D. Mihovilovic
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/193, 1060 Vienna, Austria; (B.A.V.A.); (M.T.I.); (M.D.M.)
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7
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Pezzetta C, Bonifazi D, Davidson RWM. Enantioselective Synthesis of N-Benzylic Heterocycles: A Nickel and Photoredox Dual Catalysis Approach. Org Lett 2019; 21:8957-8961. [DOI: 10.1021/acs.orglett.9b03338] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Cristofer Pezzetta
- Dr. Reddy’s Laboratories (EU), 410 Science Park, Milton Road, Cambridge CB4 0PE, United Kingdom
- School of Chemistry, Cardiff University, Park Place Main Building, Cardiff CF10 3AT, United Kingdom
| | - Davide Bonifazi
- School of Chemistry, Cardiff University, Park Place Main Building, Cardiff CF10 3AT, United Kingdom
| | - Robert W. M. Davidson
- Dr. Reddy’s Laboratories (EU), 410 Science Park, Milton Road, Cambridge CB4 0PE, United Kingdom
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8
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Dwivedee BP, Soni S, Bhimpuria R, Laha JK, Banerjee UC. Tailoring a robust and recyclable nanobiocatalyst by immobilization of Pseudomonas fluorescens lipase on carbon nanofiber and its application in synthesis of enantiopure carboetomidate analogue. Int J Biol Macromol 2019; 133:1299-1310. [PMID: 30940586 DOI: 10.1016/j.ijbiomac.2019.03.231] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 03/22/2019] [Accepted: 03/29/2019] [Indexed: 12/14/2022]
Abstract
Pseudomonas fluorescens lipase (PFL) was covalently immobilized on carbon nanofiber (CNF) using 1‑ethyl‑3‑[3‑dimethylaminopropyl] carbodiimide (EDC)/N‑hydroxysuccinimide (NHS). Surface functionalization of carbon nanofiber augments dispersibility as well as efficiency of covalent immobilization. Crucial parameters for immobilization such as pH, enzyme-support ratio, reaction time and mixing rate were optimized using one factor at a time (OFAT) approach. The nanobiocatalyst prepared under optimized conditions demonstrated a ten-fold increase in enzyme activity and the advantage of high thermal stability (up to 85 °C) along with 10 cycles of reusability. Subsequently practical application of the nanobiocatalyst was explored in the kinetic resolution of racemic 1‑phenylethanol into (S)‑1‑phenylethanol [C = 49.1%, eep = 99.5%, ees = 98.5% and E value = 151.4] followed by Mitsunobu reaction with a substituted pyrrole, giving an enantiopure (R)-carboetomidate analogue (yield = 83%).
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Affiliation(s)
- Bharat P Dwivedee
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research, S.A.S. Nagar 160062, Punjab, India
| | - Surbhi Soni
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, S.A.S. Nagar 160062, Punjab, India
| | - Rohan Bhimpuria
- Department of Pharmaceutical Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S.A.S. Nagar 160062, Punjab, India
| | - Joydev K Laha
- Department of Pharmaceutical Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S.A.S. Nagar 160062, Punjab, India
| | - Uttam C Banerjee
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research, S.A.S. Nagar 160062, Punjab, India.
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9
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Shan XH, Yang B, Zheng HX, Qu JP, Kang YB. Phenanthroline-tBuOK Promoted Intramolecular C–H Arylation of Indoles with ArI under Transition-Metal-Free Conditions. Org Lett 2018; 20:7898-7901. [DOI: 10.1021/acs.orglett.8b03449] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Xiang-Huan Shan
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Bo Yang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Hong-Xing Zheng
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jian-Ping Qu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Yan-Biao Kang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
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10
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Borodkin VS, Rafie K, Selvan N, Aristotelous T, Navratilova I, Ferenbach AT, van Aalten DMF. O-GlcNAcase Fragment Discovery with Fluorescence Polarimetry. ACS Chem Biol 2018; 13:1353-1360. [PMID: 29641181 DOI: 10.1021/acschembio.8b00183] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The attachment of the sugar N-acetyl-D-glucosamine (GlcNAc) to specific serine and threonine residues on proteins is referred to as protein O-GlcNAcylation. O-GlcNAc transferase (OGT) is the enzyme responsible for carrying out the modification, while O-GlcNAcase (OGA) reverses it. Protein O-GlcNAcylation has been implicated in a wide range of cellular processes including transcription, proteostasis, and stress response. Dysregulation of O-GlcNAc has been linked to diabetes, cancer, and neurodegenerative and cardiovascular disease. OGA has been proposed to be a drug target for the treatment of Alzheimer's and cardiovascular disease given that increased O-GlcNAc levels appear to exert a protective effect. The search for specific, potent, and drug-like OGA inhibitors with bioavailability in the brain is therefore a field of active research, requiring orthogonal high-throughput assay platforms. Here, we describe the synthesis of a novel probe for use in a fluorescence polarization based assay for the discovery of inhibitors of OGA. We show that the probe is suitable for use with both human OGA, as well as the orthologous bacterial counterpart from Clostridium perfringens, CpOGA, and the lysosomal hexosaminidases HexA/B. We structurally characterize CpOGA in complex with a ligand identified from a fragment library screen using this assay. The versatile synthesis procedure could be adapted for making fluorescent probes for the assay of other glycoside hydrolases.
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11
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Saini HK, Nandwana NK, Dhiman S, Rangan K, Kumar A. Sequential Copper-Catalyzed Sonogashira Coupling, Hydroamination and Palladium-Catalyzed Intramolecular Direct Arylation: Synthesis of Azepino-Fused Isoindolinones. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701379] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hitesh Kumar Saini
- Department of Chemistry; BITS Pilani; Pilani Campus 333031 Pilani Rajasthan India
| | | | - Shiv Dhiman
- Department of Chemistry; BITS Pilani; Pilani Campus 333031 Pilani Rajasthan India
| | - Krishnan Rangan
- Department of Chemistry; BITS Pilani; Hyderabad Campus 500078 Secunderabad Telangana India
| | - Anil Kumar
- Department of Chemistry; BITS Pilani; Pilani Campus 333031 Pilani Rajasthan India
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12
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Kumar Mondal S, Ali SA, Kumar Manna S, Mandal A, Kumar Senapati B, Hossain M, Samanta S. Palladium-Catalyzed Intramolecular Cyclization: Access to Rare PentacyclicN-Fused Heterocycles. ChemistrySelect 2017. [DOI: 10.1002/slct.201701800] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Suresh Kumar Mondal
- Department of Chemistry; Bidhannagar College; Kolkata 700064 India, Fax: (9133) 2337 4782, Mobile: 919775550193
- Department of Chemistry and Chemical Technology; Vidyasagar University; Midnapore 721102, West Bengal India
| | - Sk Asraf Ali
- Department of Chemistry; Bidhannagar College; Kolkata 700064 India, Fax: (9133) 2337 4782, Mobile: 919775550193
| | - Susanta Kumar Manna
- Department of Chemistry; Bidhannagar College; Kolkata 700064 India, Fax: (9133) 2337 4782, Mobile: 919775550193
- Department of Chemistry and Chemical Technology; Vidyasagar University; Midnapore 721102, West Bengal India
| | - Arabinda Mandal
- Department of Chemistry; Bidhannagar College; Kolkata 700064 India, Fax: (9133) 2337 4782, Mobile: 919775550193
| | | | - Maidul Hossain
- Department of Chemistry and Chemical Technology; Vidyasagar University; Midnapore 721102, West Bengal India
| | - Shubhankar Samanta
- Department of Chemistry; Bidhannagar College; Kolkata 700064 India, Fax: (9133) 2337 4782, Mobile: 919775550193
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13
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Alam K, Hong SW, Oh KH, Park JK. Divergent C-H Annulation for Multifused N-Heterocycles: Regio- and Stereospecific Cyclizations of N-Alkynylindoles. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705514] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Khyarul Alam
- Department of Chemistry and Chemistry Institute of Functional Materials; Pusan National University; Busan 46241 Korea
| | - Sung Won Hong
- Department of Chemistry and Chemistry Institute of Functional Materials; Pusan National University; Busan 46241 Korea
| | - Kyung Hwan Oh
- Department of Chemistry and Chemistry Institute of Functional Materials; Pusan National University; Busan 46241 Korea
| | - Jin Kyoon Park
- Department of Chemistry and Chemistry Institute of Functional Materials; Pusan National University; Busan 46241 Korea
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14
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Alam K, Hong SW, Oh KH, Park JK. Divergent C-H Annulation for Multifused N-Heterocycles: Regio- and Stereospecific Cyclizations of N-Alkynylindoles. Angew Chem Int Ed Engl 2017; 56:13387-13391. [DOI: 10.1002/anie.201705514] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 08/01/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Khyarul Alam
- Department of Chemistry and Chemistry Institute of Functional Materials; Pusan National University; Busan 46241 Korea
| | - Sung Won Hong
- Department of Chemistry and Chemistry Institute of Functional Materials; Pusan National University; Busan 46241 Korea
| | - Kyung Hwan Oh
- Department of Chemistry and Chemistry Institute of Functional Materials; Pusan National University; Busan 46241 Korea
| | - Jin Kyoon Park
- Department of Chemistry and Chemistry Institute of Functional Materials; Pusan National University; Busan 46241 Korea
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15
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Thireau J, Schneider C, Baudequin C, Gaurrand S, Angibaud P, Meerpoel L, Levacher V, Querolle O, Hoarau C. Chemoselective Palladium-Catalyzed Direct C-H Arylation of 5-Carboxyimidazoles: Unparalleled Access to Fused Imidazole-Based Tricycles Containing Six-, Seven- or Eight-Membered Rings. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700297] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jérémy Thireau
- Normandie University; COBRA; UMR 6014 et FR 3038; University Rouen; INSA Rouen; CNRS, IRCOF; 1 rue Tesnière 76821 Mont-Saint-Aignan Cedex France
| | - Cédric Schneider
- Normandie University; COBRA; UMR 6014 et FR 3038; University Rouen; INSA Rouen; CNRS, IRCOF; 1 rue Tesnière 76821 Mont-Saint-Aignan Cedex France
| | - Christine Baudequin
- Normandie University; COBRA; UMR 6014 et FR 3038; University Rouen; INSA Rouen; CNRS, IRCOF; 1 rue Tesnière 76821 Mont-Saint-Aignan Cedex France
| | - Sandrine Gaurrand
- Janssen Research & Development; Division of Janssen-Cilag S.A.; Campus de Maigremont, BP615 27106 Val de Reuil Cedex France
| | - Patrick Angibaud
- Janssen Research & Development; Division of Janssen-Cilag S.A.; Campus de Maigremont, BP615 27106 Val de Reuil Cedex France
| | - Lieven Meerpoel
- Janssen Research & Development; Division of Janssen; Pharmaceutica NV; Turnhoutseweg 30 2340 Beerse Belgium
| | - Vincent Levacher
- Normandie University; COBRA; UMR 6014 et FR 3038; University Rouen; INSA Rouen; CNRS, IRCOF; 1 rue Tesnière 76821 Mont-Saint-Aignan Cedex France
| | - Olivier Querolle
- Janssen Research & Development; Division of Janssen-Cilag S.A.; Campus de Maigremont, BP615 27106 Val de Reuil Cedex France
| | - Christophe Hoarau
- Normandie University; COBRA; UMR 6014 et FR 3038; University Rouen; INSA Rouen; CNRS, IRCOF; 1 rue Tesnière 76821 Mont-Saint-Aignan Cedex France
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16
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Laha JK, Bhimpuria RA, Mule GB. Site-Selective Oxidative C4 Alkenylation of (NH)-Pyrroles Bearing an Electron-Withdrawing C2 Group. ChemCatChem 2017. [DOI: 10.1002/cctc.201601468] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Joydev K. Laha
- Department of Pharmaceutical Technology, Process Chemistry; National Institute of Pharmaceutical Education and Research, NIPER; S. A. S. Nagar, Mohali India
| | - Rohan A. Bhimpuria
- Department of Pharmaceutical Technology, Process Chemistry; National Institute of Pharmaceutical Education and Research, NIPER; S. A. S. Nagar, Mohali India
| | - Gajanan B. Mule
- Department of Pharmaceutical Technology, Process Chemistry; National Institute of Pharmaceutical Education and Research, NIPER; S. A. S. Nagar, Mohali India
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17
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Ling L, Cao J, Hu J, Zhang H. Copper-catalyzed N-alkylation of indoles by N-tosylhydrazones. RSC Adv 2017. [DOI: 10.1039/c7ra03765a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
An efficient method for direct N-alkylation of indoles via copper-catalyzed reductive cross coupling between N-tosylhydrazones and indoles has been developed.
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Affiliation(s)
- Li Ling
- College of Chemistry & Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- P. R. China
- Inner Mongolia Key Laboratory of Fine Organic Synthesis
| | - Jing Cao
- College of Chemistry & Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- P. R. China
| | - Jianfeng Hu
- College of Chemistry & Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- P. R. China
- Inner Mongolia Key Laboratory of Fine Organic Synthesis
| | - Hao Zhang
- College of Chemistry & Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- P. R. China
- Inner Mongolia Key Laboratory of Fine Organic Synthesis
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18
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Laha JK, Bhimpuria RA, Hunjan MK. Intramolecular Oxidative Arylations in 7-Azaindoles and Pyrroles: Revamping the Synthesis of Fused N
-Heterocycle Tethered Fluorenes. Chemistry 2016; 23:2044-2050. [DOI: 10.1002/chem.201604192] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Indexed: 01/05/2023]
Affiliation(s)
- Joydev K. Laha
- Department of Pharmaceutical Technology (Process Chemistry); National Institute of Pharmaceutical Educational and Research (NIPER); S.A. S. Nagar Mohali- 160062 India
| | - Rohan A. Bhimpuria
- Department of Pharmaceutical Technology (Process Chemistry); National Institute of Pharmaceutical Educational and Research (NIPER); S.A. S. Nagar Mohali- 160062 India
| | - Mandeep Kaur Hunjan
- Department of Pharmaceutical Technology (Process Chemistry); National Institute of Pharmaceutical Educational and Research (NIPER); S.A. S. Nagar Mohali- 160062 India
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19
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Yonekura K, Oki K, Tsuchimoto T. Indium-Catalyzed Formal N-Arylation and N-Alkylation of Pyrroles with Amines. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600656] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kyohei Yonekura
- Department of Applied Chemistry; School of Science and Technology; Meiji University; 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
| | - Kenji Oki
- Department of Applied Chemistry; School of Science and Technology; Meiji University; 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
| | - Teruhisa Tsuchimoto
- Department of Applied Chemistry; School of Science and Technology; Meiji University; 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
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20
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Wang YX, Zheng WR, Ding LL. The C–H bond dissociation enthalpies in fused N-heterocyclic compounds. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2016. [DOI: 10.1134/s0036024416030353] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Hagui W, Yuan K, Besbes N, Srasra E, Soulé JF, Doucet H. Palladium-Catalyzed Iterative C−H Bond Arylations: Synthesis of Medium-Size Heterocycles with a Bridgehead Nitrogen Atom. ChemCatChem 2015. [DOI: 10.1002/cctc.201500652] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Wided Hagui
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS-Université de Rennes 1; Organométalliques Matériaux et Catalyse; Campus de Beaulieu 35042 Rennes France
- Université de Tunis El Manar; Falculté des Sciences de Tunis; Campus Universitaire El-Manar 2092 El Manar Tunis Tunisia
- Laboratoire Physicochimie des Matériaux Minéraux et leurs Applications; Centre National des Recherches en Sciences des Matériaux; Technopole de Bordj Cedria; Soliman 8027 Tunisia
| | - Kedong Yuan
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS-Université de Rennes 1; Organométalliques Matériaux et Catalyse; Campus de Beaulieu 35042 Rennes France
| | - Néji Besbes
- Laboratoire Physicochimie des Matériaux Minéraux et leurs Applications; Centre National des Recherches en Sciences des Matériaux; Technopole de Bordj Cedria; Soliman 8027 Tunisia
| | - Ezzeddine Srasra
- Laboratoire Physicochimie des Matériaux Minéraux et leurs Applications; Centre National des Recherches en Sciences des Matériaux; Technopole de Bordj Cedria; Soliman 8027 Tunisia
| | - Jean-François Soulé
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS-Université de Rennes 1; Organométalliques Matériaux et Catalyse; Campus de Beaulieu 35042 Rennes France
| | - Henri Doucet
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS-Université de Rennes 1; Organométalliques Matériaux et Catalyse; Campus de Beaulieu 35042 Rennes France
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22
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Xu X, Zhao L, Li Y, Soulé JF, Doucet H. IntermolecularversusIntramolecular Palladium-Catalyzed Direct Arylations between 1-(2-Bromobenzyl)imidazoles and Aryl Bromides. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500332] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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23
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Fitzgerald MA, Soltani O, Wei C, Skliar D, Zheng B, Li J, Albrecht J, Schmidt M, Mahoney M, Fox RJ, Tran K, Zhu K, Eastgate MD. Ni-Catalyzed C–H Functionalization in the Formation of a Complex Heterocycle: Synthesis of the Potent JAK2 Inhibitor BMS-911543. J Org Chem 2015; 80:6001-11. [DOI: 10.1021/acs.joc.5b00572] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Monica A Fitzgerald
- Chemical Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Omid Soltani
- Chemical Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Carolyn Wei
- Chemical Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Dimitri Skliar
- Chemical Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Bin Zheng
- Chemical Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Jun Li
- Chemical Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Jacob Albrecht
- Chemical Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Michael Schmidt
- Chemical Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Michelle Mahoney
- Chemical Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Richard J. Fox
- Chemical Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Kristy Tran
- Chemical Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Keming Zhu
- Chemical Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Martin D. Eastgate
- Chemical Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
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24
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Laha JK, Dayal N, Jethava KP, Prajapati DV. Access to Biaryl Sulfonamides by Palladium-Catalyzed Intramolecular Oxidative Coupling and Subsequent Nucleophilic Ring Opening of Heterobiaryl Sultams with Amines. Org Lett 2015; 17:1296-9. [DOI: 10.1021/acs.orglett.5b00290] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Joydev K. Laha
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| | - Neetu Dayal
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| | - Krupal P. Jethava
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| | - Dilip V. Prajapati
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
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25
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26
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Laha JK, Jethava KP, Dayal N. Palladium-Catalyzed Intramolecular Oxidative Coupling Involving Double C(sp2)–H Bonds for the Synthesis of Annulated Biaryl Sultams. J Org Chem 2014; 79:8010-9. [DOI: 10.1021/jo5011334] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Joydev K. Laha
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062 India
| | - Krupal P. Jethava
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062 India
| | - Neetu Dayal
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062 India
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27
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Laha JK, Dayal N, Singh S, Bhimpuria R. Dual Catalysis in DominoN-Benzylation/Intramolecular C-H Arylation: Regio- and Chemoselective Synthesis of Annelated Nitrogen Heterocycles. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402395] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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28
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Exploring the synthetic utility of 1-alkynylimidazoles: regiocontrolled cyclization to diverse imidazoazines and imidazoazoles. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.04.099] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Coya E, Sotomayor N, Lete E. Intramolecular Direct Arylation and Heck Reactions in the Formation of Medium-Sized Rings: Selective Synthesis of Fused Indolizine, Pyrroloazepine and Pyrroloazocine Systems. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400075] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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30
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Khose G, Shinde S, Panmand A, Kulkarni R, Munot Y, Bandyopadhyay A, Barawkar D, Patil SN. Synthesis of substituted esters of imidazoles, oxazoles, thiazoles, and diethyl pyrazine-2,5-dicarboxylate from a common acyclic precursor employing C-formylation strategy. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.03.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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31
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Chu XQ, Zi Y, Lu XM, Wang SY, Ji SJ. Intramolecular Pd-catalyzed C–H functionalization: construction of fused tetracyclic bis-indole alkaloid analogues. Tetrahedron 2014. [DOI: 10.1016/j.tet.2013.11.079] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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32
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Huang Y, Chen W, Zhao D, Chen C, Yin H, Zheng L, Jin M, Han S. Copper(I)-Catalyzed Intramolecular Direct C-Arylation of Azoles with Aryl Bromides. CHINESE J CHEM 2013. [DOI: 10.1002/cjoc.201300399] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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33
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Laha JK, Shah PU, Jethava KP. Palladium-catalyzed regio- and chemoselective ortho-benzylation of C-H bond using a functionalizable primary amide directing group: a concise synthesis of dibenzo[b,e]azepin-6-ones. Chem Commun (Camb) 2013; 49:7623-5. [PMID: 23873087 DOI: 10.1039/c3cc43835j] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A palladium-catalyzed regio- and chemoselective direct benzylation of primary benzamides with 2-bromobenzyl bromides under a mild basic condition has been developed affording various substituted diarylmethanes in good yields. Furthermore, the directing amide group (-CONH2) was subjected to intramolecular N-arylation with the aryl bromide moiety present in diarylmethanes leading to a concise synthesis of dibenzoazepinones.
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Affiliation(s)
- Joydev K Laha
- Department of Pharmaceutical Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India.
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34
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Zhao L, Bruneau C, Doucet H. Palladium-Catalysed Direct Polyarylation of Pyrrole Derivatives. ChemCatChem 2012. [DOI: 10.1002/cctc.201200521] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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35
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Iaroshenko VO, Ostrovskyi D, Miliutina M, Maalik A, Villinger A, Tolmachev A, Volochnyuk DM, Langer P. Design and Synthesis of Polycyclic Imidazole‐Containing N‐ Heterocycles based on CH Activation/Cyclization Reactions. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200221] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Viktor O. Iaroshenko
- Institut für Chemie, Universität Rostock, Albert‐Einstein‐Str. 3a, 18059 Rostock, Germany, Fax: (+49)‐381‐498 6412
- National Taras Shevchenko University, 62 Volodymyrska st., 01033 Kyiv‐33, Ukraine
| | - Dmytro Ostrovskyi
- Institut für Chemie, Universität Rostock, Albert‐Einstein‐Str. 3a, 18059 Rostock, Germany, Fax: (+49)‐381‐498 6412
| | - Mariia Miliutina
- Institut für Chemie, Universität Rostock, Albert‐Einstein‐Str. 3a, 18059 Rostock, Germany, Fax: (+49)‐381‐498 6412
| | - Aneela Maalik
- Institut für Chemie, Universität Rostock, Albert‐Einstein‐Str. 3a, 18059 Rostock, Germany, Fax: (+49)‐381‐498 6412
| | - Alexander Villinger
- Institut für Chemie, Universität Rostock, Albert‐Einstein‐Str. 3a, 18059 Rostock, Germany, Fax: (+49)‐381‐498 6412
| | - Andrei Tolmachev
- National Taras Shevchenko University, 62 Volodymyrska st., 01033 Kyiv‐33, Ukraine
- “Enamine Ltd.” 23 A. Matrosova st., 01103 Kyiv, Ukraine
| | - Dmitriy M. Volochnyuk
- “Enamine Ltd.” 23 A. Matrosova st., 01103 Kyiv, Ukraine
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska 5, 02094 Kiev‐94, Ukraine
| | - Peter Langer
- Institut für Chemie, Universität Rostock, Albert‐Einstein‐Str. 3a, 18059 Rostock, Germany, Fax: (+49)‐381‐498 6412
- Leibniz‐Institut für Katalyse e.V. an der Universität Rostock, Albert‐Einstein‐Str. 29a, 18059 Rostock, Germany
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36
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Karchava AV, Melkonyan FS, Yurovskaya MA. New strategies for the synthesis of N-alkylated indoles (Review). Chem Heterocycl Compd (N Y) 2012. [DOI: 10.1007/s10593-012-1006-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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37
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Zhao L, Li Z, Chang L, Xu J, Yao H, Wu X. Efficient Construction of Fused Indolines with a 2-Quaternary Center via an Intramolecular Heck Reaction with a Low Catalyst Loading. Org Lett 2012; 14:2066-9. [DOI: 10.1021/ol300584m] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lei Zhao
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Ziyuan Li
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Lin Chang
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Jinyi Xu
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Hequan Yao
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Xiaoming Wu
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
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38
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Cheng G, Wang X, Bao H, Cheng C, Liu N, Hu Y. Total syntheses of (-)-hanishin, (-)-longamide B, and (-)-longamide B methyl ester via a novel preparation of N-substituted pyrrole-2-carboxylates [corrected]. Org Lett 2012; 14:1062-5. [PMID: 22315925 DOI: 10.1021/ol203433c] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel preparation of N-substituted pyrrole-2-carboxylates has been developed based upon 1,3-dipolar cycloaddition and a conventional hydrogenolysis. By using this method as the key step, total syntheses of natural alkaloids (-)-hanishin, (-)-longamide [corrected] B, and (-)-longamide [corrected] B methyl ester were accomplished in the highest overall yields, respectively.
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Affiliation(s)
- Guolin Cheng
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
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39
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Ryan JH, Hyland C, Meyer AG, Smith JA, Yin J. Seven-Membered Rings. PROGRESS IN HETEROCYCLIC CHEMISTRY 2012. [DOI: 10.1016/b978-0-08-096807-0.00016-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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