1
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Silva Elipe MV, Ndukwe IE, Murray JI. Cryogen-free 400-MHz nuclear magnetic resonance spectrometer as a versatile tool for pharmaceutical process analytical technology. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2024; 62:512-534. [PMID: 38369696 DOI: 10.1002/mrc.5434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 02/20/2024]
Abstract
The discovery of new ceramic materials containing Ba-La-Cu oxides in 1986 that exhibited superconducting properties at high temperatures in the range of 35 K or higher, recognized with the Nobel Prize in Physics in 1987, opened a new world of opportunities for nuclear magnetic resonance (NMRs) and magnetic resonance imaging (MRIs) to move away from liquid cryogens. This discovery expands the application of high temperature superconducting (HTS) materials to fields beyond the chemical and medical industries, including electrical power grids, energy, and aerospace. The prototype 400-MHz cryofree HTS NMR spectrometer installed at Amgen's chemistry laboratory has been vital for a variety of applications such as structure analysis, reaction monitoring, and CASE-3D studies with RDCs. The spectrometer has been integrated with Amgen's chemistry and analytical workflows, providing pipeline project support in tandem with other Kinetic Analysis Platform technologies. The 400-MHz cryofree HTS NMR spectrometer, as the name implies, does not require liquid cryogens refills and has smaller footprint that facilitates installation into a chemistry laboratory fume hood, sharing the hood with a process chemistry reactor. Our evaluation of its performance for structural analysis with CASE-3D protocol and for reaction monitoring of Amgen's pipeline chemistry was successful. We envision that the HTS magnets would become part of the standard NMR and MRI spectrometers in the future. We believe that while the technology is being developed, there is room for all magnet options, including HTS, low temperature superconducting (LTS) magnets, and low field benchtop NMRs with permanent magnets, where utilization will be dependent on application type and costs.
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Affiliation(s)
| | - Ikenna Edward Ndukwe
- Department of Attribute Sciences, Process Development, Amgen Inc., Thousand Oaks, California, USA
| | - James I Murray
- Pivotal and Commercial Drug Substance Technologies, Process Development, Amgen Inc., Thousand Oaks, California, USA
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2
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Chikunova EI, Kukushkin VY, Dubovtsev AY. Non-Friedländer Route to Diversely 3-Substituted Quinolines through Au(III)-Catalyzed Annulation Involving Electron-Deficient Alkynes. Org Lett 2023. [PMID: 38016092 DOI: 10.1021/acs.orglett.3c03775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Gold(III)-catalyzed annulation of electron-deficient alkynes and 2-amino-arylcarbonyls provides general modular one-step access to a broad scope of quinoline products. This highly selective reaction is a useful alternative to the classic Friedländer synthesis, which requires harsh reaction conditions. In contrast, the developed method works under relatively mild PicAuCl2-catalyzed conditions and exhibits a high functional group tolerance (40 examples; yields of ≤96%). Another feature of the developed approach is a versatility toward other electron-deficient alkynes. Alkynylsulfones, alkynylcarbonyls, alkynylphosphonates, propiolonitriles, and trifluoromethylated alkynes can be used as the starting materials for the preparation of quinolines diversely substituted at position 3. On the basis of experimental data, we proposed a reaction mechanism in which gold(III) functions as a strong electrophilic activator of the C≡C bond and the carbonyl group. The synthetic potential of the presented method is additionally illustrated by practical postmodifications of the obtained compounds, including a two-step synthesis of interpirdine, a potent drug candidate.
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Affiliation(s)
- Elena I Chikunova
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Vadim Yu Kukushkin
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
- Institute of Chemistry and Pharmaceutical Technologies, Altai State University, 656049 Barnaul, Russian Federation
| | - Alexey Yu Dubovtsev
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
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3
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Arunachalampillai A, Chandrappa P, Cherney A, Crockett R, Doerfler J, Johnson G, Kommuri VC, Kyad A, McManus J, Murray J, Myren T, Fine Nathel N, Ndukwe I, Ortiz A, Reed M, Rui H, Silva Elipe MV, Tedrow J, Wells S, Yacoob S, Yamamoto K. Atroposelective Brønsted Acid-Catalyzed Photocyclization to Access Chiral N-Aryl Quinolones with Low Rotational Barriers. Org Lett 2023; 25:5856-5861. [PMID: 37499637 DOI: 10.1021/acs.orglett.3c02117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Herein, a novel route to atropisomeric N-aryl quinolones with low rotational barriers is demonstrated, leveraging a dual photochemical/organocatalytic approach to the required ring closure in up to 94% yield and up to >99% ee. The use of a continuous flow system allows for impurity suppression and enables rapid scale-up to a decagram scale.
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Affiliation(s)
| | | | - Alan Cherney
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Richard Crockett
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Jaika Doerfler
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Gregory Johnson
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | | | - Ali Kyad
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Joshua McManus
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - James Murray
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Tessa Myren
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Noah Fine Nathel
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Ikenna Ndukwe
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Adrian Ortiz
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Margaret Reed
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Huan Rui
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | | | - Jason Tedrow
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Shane Wells
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Suha Yacoob
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Kumiko Yamamoto
- Amgen, One Amgen Center Drive, Thousand Oaks, California 91320, United States
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4
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Kumar A, Dhameliya TM, Sharma K, Patel KA, Hirani RV. Environmentally Benign Approaches towards the Synthesis of Quinolines. ChemistrySelect 2022. [DOI: 10.1002/slct.202201059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Asim Kumar
- Amity Institute of Pharmacy Amity University Haryana, Panchgaon, Manesar 122 413 Haryana India
| | - Tejas M. Dhameliya
- Department of Pharmaceutical Chemistry and Quality Assurance L. M. College of Pharmacy, Navrangpura, Ahmedabad 380 009 Gujarat India
| | - Kirti Sharma
- Amity Institute of Pharmacy Amity University Haryana, Panchgaon, Manesar 122 413 Haryana India
| | - Krupa A. Patel
- Department of Pharmaceutical Chemistry and Quality Assurance L. M. College of Pharmacy, Navrangpura, Ahmedabad 380 009 Gujarat India
| | - Rajvi V. Hirani
- Department of Pharmaceutical Chemistry and Quality Assurance L. M. College of Pharmacy, Navrangpura, Ahmedabad 380 009 Gujarat India
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5
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Abstract
Visible light promoted synthetic routes of quinolines using different strategies are hereby documented.
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Affiliation(s)
- Ajay Kumar Dhiya
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Aparna Monga
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Anuj Sharma
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
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6
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Teja C, Khan FRN. Radical Transformations towards the Synthesis of Quinoline: A Review. Chem Asian J 2020; 15:4153-4167. [PMID: 33135361 DOI: 10.1002/asia.202001156] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/25/2020] [Indexed: 12/21/2022]
Abstract
Quinoline is considered one of the most ubiquitous heterocycles due to its engaging biological activities and synthetic utility over organic transformations. Over the past few decades, numerous reports have been documented in the synthesis of quinolines. The classical methods including, Skraup, Friedlander, Doebner-von-Miller, Conrad-Limpach, Pfitzinger quinoline synthesis, and so forth, these are the well-known methods to construct principal quinoline scaffold with several advantages and limitations. Recently, radical insertion or catalyzed reactions have emerged as a powerful and efficient tool to construct heterocycles with high atom efficiency and step economy. In this concern, this minireview mainly focused on the developments of Quinoline synthesis via radical reactions. In addition, a brief description of the preparation procedure, reactivity, and mechanisms is also included, where as possible. Respectively, the synthesis of quinolines is classified and summarized based on its reactivity, so it will help the researchers to grab the information in this exploration area, as Quinolines are promising pharmacophores.
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Affiliation(s)
- Chitrala Teja
- Organic and Medicinal Chemistry Research Laboratory, School of Advanced Sciences, Vellore Institute of Technology, Vellore, 632 014, Tamil Nadu, India
| | - Fazlur Rahman Nawaz Khan
- Organic and Medicinal Chemistry Research Laboratory, School of Advanced Sciences, Vellore Institute of Technology, Vellore, 632 014, Tamil Nadu, India
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7
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Sruthi PR, Sankar PU, Saranya TV, Anas S. Facile Synthesis of Dihydroquinolines via Palladium Catalyzed Sequential Amination and Cyclisation of Morita-Baylis-Hillman Alcohols. ChemistrySelect 2020; 5:13598-13602. [PMID: 33363255 PMCID: PMC7753362 DOI: 10.1002/slct.202003413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 11/05/2020] [Indexed: 11/11/2022]
Abstract
Quinolines and its derivatives are significant class of heterocyclic compounds which are identified as the key component in many natural products and biologically important molecules. We describe herein a facile method for the synthesis of quinoline derivatives from Morita-Baylis-Hillman (MBH) Alcohols via Palladium Catalyzed intramolecular aryl amination followed by allylic amination pathway. The reaction between a series of MBH alcohols and amino compounds (Tosyl, aliphatic and aromatic amines) under optimized reaction conditions with Pd(PPh3)2Cl2/DPPP catalyst system, afforded the corresponding 1,2-dihydroquinolines upto 95 % isolated yield.
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Affiliation(s)
| | - P. Uma Sankar
- Department of ChemistryAmrithaviswavidyapeetKollamKeralaIndia-690525
| | | | - Saithalavi Anas
- School of Chemical SciencesMahatma Gandhi UniversityKottayamKeralaIndia-686560
- Institute for Integrated Programmes & Research in Basic Sciences (IIRBS)Mahatma Gandhi UniversityKottayamKeralaIndia-686560
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8
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Alam T, Rakshit A, Begum P, Dahiya A, Patel BK. Visible-Light-Induced Difunctionalization of Styrenes: Synthesis of N-Hydroxybenzimidoyl Cyanides. Org Lett 2020; 22:3728-3733. [DOI: 10.1021/acs.orglett.0c01235] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Tipu Alam
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Amitava Rakshit
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Pakiza Begum
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Anjali Dahiya
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Bhisma K. Patel
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
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9
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Peña-Solórzano D, Kouznetsov VV, Ochoa-Puentes C. Physicochemical properties of a urea/zinc chloride eutectic mixture and its improved effect on the fast and high yield synthesis of indeno[2,1- c]quinolines. NEW J CHEM 2020. [DOI: 10.1039/d0nj01342k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An environmentally friendly and efficient method for the synthesis of indeno[2,1-c]quinolines is developed using a urea/zinc chloride eutectic mixture as a green mildly acidic medium.
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Affiliation(s)
- Diana Peña-Solórzano
- Laboratorio de Síntesis Orgánica Sostenible
- Departamento de Química
- Universidad Nacional de Colombia–Sede Bogotá
- Bogotá
- Colombia
| | - Vladimir V. Kouznetsov
- Laboratorio de Química Orgánica y Biomolecular
- CMN
- Universidad Industrial de Santander. Parque Tecnológico Guatiguará
- Piedecuesta 681011
- Colombia
| | - Cristian Ochoa-Puentes
- Laboratorio de Síntesis Orgánica Sostenible
- Departamento de Química
- Universidad Nacional de Colombia–Sede Bogotá
- Bogotá
- Colombia
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10
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Zhou Y, Liu W, Xing Z, Guan J, Song Z, Peng Y. External-photocatalyst-free visible-light-mediated aerobic oxidation and 1,4-bisfunctionalization of N-alkyl isoquinolinium salts. Org Chem Front 2020. [DOI: 10.1039/d0qo00663g] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Visible-light-induced aerobic alternate transformations of N-alkyl isoquinolinium/quinolinium salts in the absence of any external photocatalyst have been developed.
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Affiliation(s)
- Youkang Zhou
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
| | - Wei Liu
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
| | - Zhiming Xing
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
| | - Jiali Guan
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
| | - Zhibin Song
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
| | - Yiyuan Peng
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
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