1
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Yu J, Liu J, Li C, Huang J, Zhu Y, You H. Recent advances and applications in high-throughput continuous flow. Chem Commun (Camb) 2024; 60:3217-3225. [PMID: 38436212 DOI: 10.1039/d3cc06180a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
High-throughput continuous flow technology has emerged as a revolutionary approach in chemical synthesis, offering accelerated experimentation and improved efficiency. With the aid of process analytical technology and automation, this system not only enables rapid optimisation of reaction conditions at the millimole to the picomole scale, but also facilitates automated scale-up synthesis. It can even achieve the self-planning and self-synthesis of small drug molecules with artificial intelligence incorporated in the system. The versatility of the system is highlighted by its compatibility with both electrochemistry and photochemistry, and its significant applications in organic synthesis and drug discovery. This highlight summarises its recent developments and applications, emphasising its significant impact on advancing research across multiple disciplines.
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Affiliation(s)
- Jiaping Yu
- School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China.
| | - Jiaying Liu
- Institute of Advanced Technology of Heilongjiang Academy of Sciences, Harbin, 150000, China
| | - Chaoyi Li
- School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China.
| | - Junrong Huang
- School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China.
| | - Yuxiang Zhu
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, 518107, China.
| | - Hengzhi You
- School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China.
- Green Pharmaceutical Engineering Research Centre, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
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2
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Brocklehurst CE, Altmann E, Bon C, Davis H, Dunstan D, Ertl P, Ginsburg-Moraff C, Grob J, Gosling DJ, Lapointe G, Marziale AN, Mues H, Palmieri M, Racine S, Robinson RI, Springer C, Tan K, Ulmer W, Wyler R. MicroCycle: An Integrated and Automated Platform to Accelerate Drug Discovery. J Med Chem 2024; 67:2118-2128. [PMID: 38270627 DOI: 10.1021/acs.jmedchem.3c02029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
We herein describe the development and application of a modular technology platform which incorporates recent advances in plate-based microscale chemistry, automated purification, in situ quantification, and robotic liquid handling to enable rapid access to high-quality chemical matter already formatted for assays. In using microscale chemistry and thus consuming minimal chemical matter, the platform is not only efficient but also follows green chemistry principles. By reorienting existing high-throughput assay technology, the platform can generate a full package of relevant data on each set of compounds in every learning cycle. The multiparameter exploration of chemical and property space is hereby driven by active learning models. The enhanced compound optimization process is generating knowledge for drug discovery projects in a time frame never before possible.
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Affiliation(s)
- Cara E Brocklehurst
- Global Discovery Chemistry, Novartis Biomedical Research, Novartis Pharma AG, Basel 4033, Switzerland
| | - Eva Altmann
- Global Discovery Chemistry, Novartis Biomedical Research, Novartis Pharma AG, Basel 4033, Switzerland
| | - Corentin Bon
- Global Discovery Chemistry, Novartis Biomedical Research, Novartis Pharma AG, Basel 4033, Switzerland
| | - Holly Davis
- Global Discovery Chemistry, Novartis Biomedical Research, Novartis Pharma AG, Basel 4033, Switzerland
| | - David Dunstan
- Global Discovery Chemistry, Novartis Biomedical Research, Cambridge, Massachusetts 02139, United States
| | - Peter Ertl
- Global Discovery Chemistry, Novartis Biomedical Research, Novartis Pharma AG, Basel 4033, Switzerland
| | - Carol Ginsburg-Moraff
- Global Discovery Chemistry, Novartis Biomedical Research, Cambridge, Massachusetts 02139, United States
| | - Jonathan Grob
- Global Discovery Chemistry, Novartis Biomedical Research, Cambridge, Massachusetts 02139, United States
| | - Daniel J Gosling
- Global Discovery Chemistry, Novartis Biomedical Research, Novartis Pharma AG, Basel 4033, Switzerland
| | - Guillaume Lapointe
- Global Discovery Chemistry, Novartis Biomedical Research, Novartis Pharma AG, Basel 4033, Switzerland
| | - Alexander N Marziale
- Global Discovery Chemistry, Novartis Biomedical Research, Novartis Pharma AG, Basel 4033, Switzerland
| | - Heinrich Mues
- Global Discovery Chemistry, Novartis Biomedical Research, Novartis Pharma AG, Basel 4033, Switzerland
| | - Marco Palmieri
- Global Discovery Chemistry, Novartis Biomedical Research, Novartis Pharma AG, Basel 4033, Switzerland
| | - Sophie Racine
- Global Discovery Chemistry, Novartis Biomedical Research, Novartis Pharma AG, Basel 4033, Switzerland
| | - Richard I Robinson
- Global Discovery Chemistry, Novartis Biomedical Research, Cambridge, Massachusetts 02139, United States
| | - Clayton Springer
- Global Discovery Chemistry, Novartis Biomedical Research, Cambridge, Massachusetts 02139, United States
| | - Kian Tan
- Global Discovery Chemistry, Novartis Biomedical Research, Cambridge, Massachusetts 02139, United States
| | - William Ulmer
- Global Discovery Chemistry, Novartis Biomedical Research, Cambridge, Massachusetts 02139, United States
| | - René Wyler
- Global Discovery Chemistry, Novartis Biomedical Research, Novartis Pharma AG, Basel 4033, Switzerland
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3
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Zafar A, Takeda C, Manzoor A, Tanaka D, Kobayashi M, Wadayama Y, Nakane D, Majeed A, Iqbal MA, Akitsu T. Towards Industrially Important Applications of Enhanced Organic Reactions by Microfluidic Systems. Molecules 2024; 29:398. [PMID: 38257311 PMCID: PMC10820862 DOI: 10.3390/molecules29020398] [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: 12/06/2023] [Revised: 01/01/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
This review presents a comprehensive evaluation for the manufacture of organic molecules via efficient microfluidic synthesis. Microfluidic systems provide considerably higher control over the growth, nucleation, and reaction conditions compared with traditional large-scale synthetic methods. Microfluidic synthesis has become a crucial technique for the quick, affordable, and efficient manufacture of organic and organometallic compounds with complicated characteristics and functions. Therefore, a unique, straightforward flow synthetic methodology can be developed to conduct organic syntheses and improve their efficiency.
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Affiliation(s)
- Ayesha Zafar
- Department of Chemistry, Faculty of Science, University of Agriculture, Faisalabad 38040, Pakistan
| | - China Takeda
- Department of Chemistry, Faculty of Science, Tokyo University of Science, Tokyo 162-8601, Japan
| | - Asif Manzoor
- Department of Chemistry, Faculty of Science, University of Agriculture, Faisalabad 38040, Pakistan
| | - Daiki Tanaka
- Research Organization for Nano & Life Innovation, Waseda University, Tokyo 169-8050, Japan
| | - Masashi Kobayashi
- Research Organization for Nano & Life Innovation, Waseda University, Tokyo 169-8050, Japan
| | - Yoshitora Wadayama
- Department of Chemistry, Faculty of Science, Tokyo University of Science, Tokyo 162-8601, Japan
| | - Daisuke Nakane
- Department of Chemistry, Faculty of Science, Tokyo University of Science, Tokyo 162-8601, Japan
| | - Adnan Majeed
- Department of Chemistry, Faculty of Science, University of Agriculture, Faisalabad 38040, Pakistan
| | - Muhammad Adnan Iqbal
- Department of Chemistry, Faculty of Science, University of Agriculture, Faisalabad 38040, Pakistan
| | - Takashiro Akitsu
- Department of Chemistry, Faculty of Science, Tokyo University of Science, Tokyo 162-8601, Japan
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4
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Eyke NS, Schneider TN, Jin B, Hart T, Monfette S, Hawkins JM, Morse PD, Howard RM, Pfisterer DM, Nandiwale KY, Jensen KF. Parallel multi-droplet platform for reaction kinetics and optimization. Chem Sci 2023; 14:8798-8809. [PMID: 37621435 PMCID: PMC10445457 DOI: 10.1039/d3sc02082g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 08/01/2023] [Indexed: 08/26/2023] Open
Abstract
We present an automated droplet reactor platform possessing parallel reactor channels and a scheduling algorithm that orchestrates all of the parallel hardware operations and ensures droplet integrity as well as overall efficiency. We design and incorporate all of the necessary hardware and software to enable the platform to be used to study both thermal and photochemical reactions. We incorporate a Bayesian optimization algorithm into the control software to enable reaction optimization over both categorical and continuous variables. We demonstrate the capabilities of both the preliminary single-channel and parallelized versions of the platform using a series of model thermal and photochemical reactions. We conduct a series of reaction optimization campaigns and demonstrate rapid acquisition of the data necessary to determine reaction kinetics. The platform is flexible in terms of use case: it can be used either to investigate reaction kinetics or to perform reaction optimization over a wide range of chemical domains.
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Affiliation(s)
- Natalie S Eyke
- Department of Chemical Engineering, Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Timo N Schneider
- Department of Chemical Engineering, Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Brooke Jin
- Department of Chemical Engineering, Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Travis Hart
- Department of Chemical Engineering, Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Sebastien Monfette
- Pfizer Worldwide Research and Development 445 Eastern Point Rd Groton CT 06340 USA
| | - Joel M Hawkins
- Pfizer Worldwide Research and Development 445 Eastern Point Rd Groton CT 06340 USA
| | - Peter D Morse
- Pfizer Worldwide Research and Development 445 Eastern Point Rd Groton CT 06340 USA
| | - Roger M Howard
- Pfizer Worldwide Research and Development 445 Eastern Point Rd Groton CT 06340 USA
| | - David M Pfisterer
- Pfizer Worldwide Research and Development 445 Eastern Point Rd Groton CT 06340 USA
| | | | - Klavs F Jensen
- Department of Chemical Engineering, Massachusetts Institute of Technology Cambridge MA 02139 USA
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5
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Haas C, Lübbesmeyer M, Jin EH, McDonald MA, Koscher BA, Guimond N, Di Rocco L, Kayser H, Leweke S, Niedenführ S, Nicholls R, Greeves E, Barber DM, Hillenbrand J, Volpin G, Jensen KF. Open-Source Chromatographic Data Analysis for Reaction Optimization and Screening. ACS CENTRAL SCIENCE 2023; 9:307-317. [PMID: 36844498 PMCID: PMC9951288 DOI: 10.1021/acscentsci.2c01042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Indexed: 06/18/2023]
Abstract
Automation and digitalization solutions in the field of small molecule synthesis face new challenges for chemical reaction analysis, especially in the field of high-performance liquid chromatography (HPLC). Chromatographic data remains locked in vendors' hardware and software components, limiting their potential in automated workflows and data science applications. In this work, we present an open-source Python project called MOCCA for the analysis of HPLC-DAD (photodiode array detector) raw data. MOCCA provides a comprehensive set of data analysis features, including an automated peak deconvolution routine of known signals, even if overlapped with signals of unexpected impurities or side products. We highlight the broad applicability of MOCCA in four studies: (i) a simulation study to validate MOCCA's data analysis features; (ii) a reaction kinetics study on a Knoevenagel condensation reaction demonstrating MOCCA's peak deconvolution feature; (iii) a closed-loop optimization study for the alkylation of 2-pyridone without human control during data analysis; (iv) a well plate screening of categorical reaction parameters for a novel palladium-catalyzed cyanation of aryl halides employing O-protected cyanohydrins. By publishing MOCCA as a Python package with this work, we envision an open-source community project for chromatographic data analysis with the potential of further advancing its scope and capabilities.
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Affiliation(s)
- Christian
P. Haas
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
- Research
and Development, Small Molecules Technologies, Bayer AG, Crop Science Division, Industriepark Höchst, 65926 Frankfurt am Main, Germany
| | - Maximilian Lübbesmeyer
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
- Research
and Development, Small Molecules Technologies, Bayer AG, Crop Science Division, Industriepark Höchst, 65926 Frankfurt am Main, Germany
| | - Edward H. Jin
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Matthew A. McDonald
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Brent A. Koscher
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Nicolas Guimond
- Research
and Development, Small Molecules Technologies, Bayer AG, Crop Science Division, Alfred-Nobel-Straße 50, 40789 Monheim am Rhein, Germany
| | - Laura Di Rocco
- Chemical
& Pharmaceutical Development, Bayer
AG, Pharmaceuticals Division, Müllerstraße 178, 13353 Berlin, Germany
| | - Henning Kayser
- Research
and Development, Small Molecules Technologies, Bayer AG, Crop Science Division, Alfred-Nobel-Straße 50, 40789 Monheim am Rhein, Germany
| | - Samuel Leweke
- Applied
Mathematics, Bayer AG, Enabling Functions
Division, Kaiser-Wilhelm-Allee
1, 51368 Leverkusen, Germany
| | - Sebastian Niedenführ
- Research
and Development, Computational Life Science, Bayer AG, Crop Science Division, Alfred-Nobel-Straße 50, 40789 Monheim am Rhein, Germany
| | - Rachel Nicholls
- Research
and Development, Computational Life Science, Bayer AG, Crop Science Division, Alfred-Nobel-Straße 50, 40789 Monheim am Rhein, Germany
| | - Emily Greeves
- Research
and Development, Small Molecules Technologies, Bayer AG, Crop Science Division, Industriepark Höchst, 65926 Frankfurt am Main, Germany
| | - David M. Barber
- Research
and Development, Weed Control Chemistry, Bayer AG, Crop Science Division, Industriepark Höchst, 65926 Frankfurt am Main, Germany
| | - Julius Hillenbrand
- Chemical
& Pharmaceutical Development, Bayer
AG, Pharmaceuticals Division, Friedrich-Ebert-Straße 475, 42117 Wuppertal, Germany
| | - Giulio Volpin
- Research
and Development, Small Molecules Technologies, Bayer AG, Crop Science Division, Industriepark Höchst, 65926 Frankfurt am Main, Germany
| | - Klavs F. Jensen
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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6
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Multivariate curve resolution for kinetic modeling and scale-up prediction. J Flow Chem 2023. [DOI: 10.1007/s41981-022-00252-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Abstract
An imine synthesis was investigated in a nearly isothermal oscillating segmented flow microreactor at different temperatures using non-invasive Raman spectroscopy. Multivariate curve resolution provided a calibration-free approach for obtaining kinetic parameters. The two different multivariate curve resolution approaches, soft and hard modeling, were applied and contrasted, leading to similar results. Taking heat and mass balance into account, the proposed kinetic model was applied for a model-based scale-up prediction. Finally, the reaction was performed in a 0.5 L semi-batch reactor, followed by in-line Raman spectroscopy and off-line gas chromatography analysis. The successful scale-up was demonstrated with a good agreement between measured and predicted concentration profiles.
Highlights
• Oscillation segmented flow reactor with inline Raman spectroscopy.
• Multivariate Curve Resolution with hard and soft constraints.
• High quality kinetic model for scale-up predictions.
Graphical abstract
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7
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Ginsburg-Moraff C, Grob J, Chin K, Eastman G, Wildhaber S, Bayliss M, Mues HM, Palmieri M, Poirier J, Reck M, Luneau A, Rodde S, Reilly J, Wagner T, Brocklehurst CE, Wyler R, Dunstan D, Marziale AN. Integrated and automated high-throughput purification of libraries on microscale. SLAS Technol 2022; 27:350-360. [PMID: 36028206 DOI: 10.1016/j.slast.2022.08.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 08/04/2022] [Accepted: 08/21/2022] [Indexed: 12/14/2022]
Abstract
We herein report the development of an automation platform for rapid purification and quantification of chemical libraries including reformatting of chemical matter to 10 mM DMSO stock solutions. This fully integrated workflow features tailored conditions for preparative reversed-phase (RP) HPLC-MS on microscale based on analytical data, online fraction QC and CAD-based quantification as well as automated reformatting to enable rapid purification of chemical libraries. This automated workflow is entirely solution-based, eliminating the need to weigh or handle solids. This increases process efficiency and creates a link between high-throughput synthesis and profiling of novel chemical matter with respect to biological and physicochemical properties in relevant assays.
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Affiliation(s)
- Carol Ginsburg-Moraff
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG., Cambridge, MA 02139, USA.
| | - Jonathan Grob
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG., Cambridge, MA 02139, USA
| | - Karl Chin
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG., Cambridge, MA 02139, USA
| | - Grant Eastman
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG., Cambridge, MA 02139, USA
| | - Sandra Wildhaber
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG., Fabrikstrasse 1, Basel 4056, Switzerland
| | | | - Heinrich M Mues
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG., Fabrikstrasse 1, Basel 4056, Switzerland
| | - Marco Palmieri
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG., Fabrikstrasse 1, Basel 4056, Switzerland
| | - Jennifer Poirier
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG., Cambridge, MA 02139, USA
| | - Marcel Reck
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG., Fabrikstrasse 1, Basel 4056, Switzerland
| | - Alexandre Luneau
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG., Fabrikstrasse 1, Basel 4056, Switzerland
| | - Stephane Rodde
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG., Fabrikstrasse 1, Basel 4056, Switzerland
| | - John Reilly
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG., Fabrikstrasse 1, Basel 4056, Switzerland
| | - Trixie Wagner
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG., Fabrikstrasse 1, Basel 4056, Switzerland
| | - Cara E Brocklehurst
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG., Fabrikstrasse 1, Basel 4056, Switzerland
| | - René Wyler
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG., Fabrikstrasse 1, Basel 4056, Switzerland
| | - David Dunstan
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG., Cambridge, MA 02139, USA.
| | - Alexander N Marziale
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG., Fabrikstrasse 1, Basel 4056, Switzerland.
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8
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Zanuso E, Ruiz HA, Domingues L, Teixeira JA. Oscillatory flow bioreactor operating at high solids loading for enzymatic hydrolysis of lignocellulosic biomass. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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9
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van Putten R, Eyke NS, Baumgartner LM, Schultz VL, Filonenko GA, Jensen KF, Pidko EA. Automation and Microfluidics for the Efficient, Fast, and Focused Reaction Development of Asymmetric Hydrogenation Catalysis. CHEMSUSCHEM 2022; 15:e202200333. [PMID: 35470567 PMCID: PMC9401021 DOI: 10.1002/cssc.202200333] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/17/2022] [Indexed: 06/14/2023]
Abstract
Automation and microfluidic tools potentially enable efficient, fast, and focused reaction development of complex chemistries, while minimizing resource- and material consumption. The introduction of automation-assisted workflows will contribute to the more sustainable development and scale-up of new and improved catalytic technologies. Herein, the application of automation and microfluidics to the development of a complex asymmetric hydrogenation reaction is described. Screening and optimization experiments were performed using an automated microfluidic platform, which enabled a drastic reduction in the material consumption compared to conventional laboratory practices. A suitable catalytic system was identified from a library of RuII -diamino precatalysts. In situ precatalyst activation was studied with 1 H/31 P nuclear magnetic resonance (NMR), and the reaction was scaled up to multigram quantities in a batch autoclave. These reactions were monitored using an automated liquid-phase sampling system. Ultimately, in less than a week of total experimental time, multigram quantities of the target enantiopure alcohol product were provided by this automation-assisted approach.
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Affiliation(s)
- Robbert van Putten
- Inorganic Systems EngineeringDepartment of Chemical EngineeringDelft University of TechnologyVan der Maasweg 92629HZDelftNetherlands
- Department of Chemical EngineeringMassachusetts Institute of Technology77 Massachusetts Avenue02139CambridgeMassachusettsUnited States
| | - Natalie S. Eyke
- Department of Chemical EngineeringMassachusetts Institute of Technology77 Massachusetts Avenue02139CambridgeMassachusettsUnited States
| | - Lorenz M. Baumgartner
- Department of Chemical EngineeringMassachusetts Institute of Technology77 Massachusetts Avenue02139CambridgeMassachusettsUnited States
| | - Victor L. Schultz
- Department of Chemical EngineeringMassachusetts Institute of Technology77 Massachusetts Avenue02139CambridgeMassachusettsUnited States
| | - Georgy A. Filonenko
- Inorganic Systems EngineeringDepartment of Chemical EngineeringDelft University of TechnologyVan der Maasweg 92629HZDelftNetherlands
| | - Klavs F. Jensen
- Department of Chemical EngineeringMassachusetts Institute of Technology77 Massachusetts Avenue02139CambridgeMassachusettsUnited States
| | - Evgeny A. Pidko
- Inorganic Systems EngineeringDepartment of Chemical EngineeringDelft University of TechnologyVan der Maasweg 92629HZDelftNetherlands
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10
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11
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Duvadie R, Pomberger A, Mo Y, Altinoglu EI, Hsieh HW, Nandiwale KY, Schultz VL, Jensen KF, Robinson RI. Photoredox Iridium–Nickel Dual Catalyzed Cross-Electrophile Coupling: From a Batch to a Continuous Stirred-Tank Reactor via an Automated Segmented Flow Reactor. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00251] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Rohit Duvadie
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Alexander Pomberger
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Yiming Mo
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Erhan I. Altinoglu
- Chemical and Pharmaceutical Profiling, Novartis Global Drug Development, 700 Main Street South, Cambridge, Massachusetts 02139, United States
| | - Hsiao-Wu Hsieh
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Kakasaheb Y. Nandiwale
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Victor L. Schultz
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Klavs F. Jensen
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Richard I. Robinson
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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12
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González-Esguevillas M, Fernández DF, Rincón JA, Barberis M, de Frutos O, Mateos C, García-Cerrada S, Agejas J, MacMillan DWC. Rapid Optimization of Photoredox Reactions for Continuous-Flow Systems Using Microscale Batch Technology. ACS CENTRAL SCIENCE 2021; 7:1126-1134. [PMID: 34345665 PMCID: PMC8323116 DOI: 10.1021/acscentsci.1c00303] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Indexed: 05/03/2023]
Abstract
Photoredox catalysis has emerged as a powerful and versatile platform for the synthesis of complex molecules. While photocatalysis is already broadly used in small-scale batch chemistry across the pharmaceutical sector, recent efforts have focused on performing these transformations in process chemistry due to the inherent challenges of batch photocatalysis on scale. However, translating optimized batch conditions to flow setups is challenging, and a general approach that is rapid, convenient, and inexpensive remains largely elusive. Herein, we report the development of a new approach that uses a microscale high-throughput experimentation (HTE) platform to identify optimal reaction conditions that can be directly translated to flow systems. A key design point is to simulate the flow-vessel pathway within a microscale reaction plate, which enables the rapid identification of optimal flow reaction conditions using only a small number of simultaneous experiments. This approach has been validated against a range of widely used photoredox reactions and, importantly, was found to translate accurately to several commercial flow reactors. We expect that the generality and operational efficiency of this new HTE approach to photocatalysis will allow rapid identification of numerous flow protocols for scale.
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Affiliation(s)
| | - David F. Fernández
- Merck
Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Juan A. Rincón
- Centro
de Investigación Eli Lilly, S. A., Avda. de la Industria 30, 28108 Alcobendas, Madrid, Spain
| | - Mario Barberis
- Centro
de Investigación Eli Lilly, S. A., Avda. de la Industria 30, 28108 Alcobendas, Madrid, Spain
| | - Oscar de Frutos
- Centro
de Investigación Eli Lilly, S. A., Avda. de la Industria 30, 28108 Alcobendas, Madrid, Spain
| | - Carlos Mateos
- Centro
de Investigación Eli Lilly, S. A., Avda. de la Industria 30, 28108 Alcobendas, Madrid, Spain
| | - Susana García-Cerrada
- Centro
de Investigación Eli Lilly, S. A., Avda. de la Industria 30, 28108 Alcobendas, Madrid, Spain
| | - Javier Agejas
- Centro
de Investigación Eli Lilly, S. A., Avda. de la Industria 30, 28108 Alcobendas, Madrid, Spain
| | - David W. C. MacMillan
- Merck
Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
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13
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Piendl SK, Schönfelder T, Polack M, Weigelt L, van der Zwaag T, Teutenberg T, Beckert E, Belder D. Integration of segmented microflow chemistry and online HPLC/MS analysis on a microfluidic chip system enabling enantioselective analyses at the nanoliter scale. LAB ON A CHIP 2021; 21:2614-2624. [PMID: 34008641 DOI: 10.1039/d1lc00078k] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this work, we introduce an approach to merge droplet microfluidics with an HPLC/MS functionality on a single chip to analyze the contents of individual droplets. This is achieved by a mechanical rotor-stator interface that precisely positions a microstructured PEEK rotor on a microfluidic chip in a pressure-tight manner. The developed full-body fused silica chip, manufactured by selective laser-induced etching, contained a segmented microflow compartment followed by a packed HPLC channel, which were interconnected by the microfluidic PEEK rotor on the fused silica lid with hair-thin through-holes. This enabled the targeted and leakage-free transfer of 10 nL fractions of droplets as small as 25 nL from the segmented microflow channel into the HPLC compartment that operated at pressures of up to 60 bar. In a proof of concept study, this approach was successfully applied to monitor reactions at the nanoliter scale and to distinguish the formed enantiomers.
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Affiliation(s)
- Sebastian K Piendl
- Institute of Analytical Chemistry, Leipzig University, Linnéstraße 3, 04103 Leipzig, Germany.
| | - Thomas Schönfelder
- Fraunhofer Institute for Applied Optics and Precision Engineering (IOF), Albert-Einstein-Str. 7, 07745 Jena, Germany
| | - Matthias Polack
- Institute of Analytical Chemistry, Leipzig University, Linnéstraße 3, 04103 Leipzig, Germany.
| | - Laura Weigelt
- Institute of Analytical Chemistry, Leipzig University, Linnéstraße 3, 04103 Leipzig, Germany.
| | - Till van der Zwaag
- Institut für Energie - und Umwelttechnik e. V., Bliersheimer Str. 58-60, 47229, Duisburg, Germany
| | - Thorsten Teutenberg
- Institut für Energie - und Umwelttechnik e. V., Bliersheimer Str. 58-60, 47229, Duisburg, Germany
| | - Erik Beckert
- Fraunhofer Institute for Applied Optics and Precision Engineering (IOF), Albert-Einstein-Str. 7, 07745 Jena, Germany
| | - Detlev Belder
- Institute of Analytical Chemistry, Leipzig University, Linnéstraße 3, 04103 Leipzig, Germany.
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14
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Bennett JA, Davis BA, Ramezani M, Genzer J, Efimenko K, Abolhasani M. Continuous Ligand-Free Suzuki–Miyaura Cross-Coupling Reactions in a Cartridge Flow Reactor Using a Gel-Supported Catalyst. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01531] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jeffrey A. Bennett
- Department of Chemical and Biomolecular Engineering. North Carolina State University, 911 Partners Way, Raleigh, North Carolina 27695 United States
| | - Bradley A. Davis
- Department of Chemical and Biomolecular Engineering. North Carolina State University, 911 Partners Way, Raleigh, North Carolina 27695 United States
| | - Mahdi Ramezani
- Department of Chemical and Biomolecular Engineering. North Carolina State University, 911 Partners Way, Raleigh, North Carolina 27695 United States
| | - Jan Genzer
- Department of Chemical and Biomolecular Engineering. North Carolina State University, 911 Partners Way, Raleigh, North Carolina 27695 United States
| | - Kirill Efimenko
- Department of Chemical and Biomolecular Engineering. North Carolina State University, 911 Partners Way, Raleigh, North Carolina 27695 United States
| | - Milad Abolhasani
- Department of Chemical and Biomolecular Engineering. North Carolina State University, 911 Partners Way, Raleigh, North Carolina 27695 United States
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15
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Ranadive P, Blanchette Z, Spanos A, Medlin JW, Brunelli N. Scalable synthesis of selective hydrodeoxygenation inverted Pd@TiO2 nanocatalysts. J Flow Chem 2021. [DOI: 10.1007/s41981-021-00171-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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16
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Ahn GN, Sharma BM, Lahore S, Yim SJ, Vidyacharan S, Kim DP. Flow parallel synthesizer for multiplex synthesis of aryl diazonium libraries via efficient parameter screening. Commun Chem 2021; 4:53. [PMID: 36697557 PMCID: PMC9814388 DOI: 10.1038/s42004-021-00490-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 03/03/2021] [Indexed: 02/02/2023] Open
Abstract
The development of miniaturized flow platforms would enable efficient and selective synthesis of drug and lead molecules by rapidly exploring synthetic methodologies and screening for optimal conditions, progress in which could be transformative for the field. In spite of tremendous advances made in continuous flow technology, these reported flow platforms are not devised to conduct many different reactions simultaneously. Herein, we report a metal-based flow parallel synthesizer that enables multiplex synthesis of libraries of compounds and efficient screening of parameters. This miniaturized synthesizer, equipped with a unique built-in flow distributor and n number of microreactors, can execute multiple types of reactions in parallel under diverse conditions, including photochemistry. Diazonium-based reactions are explored as a test case by distributing the reagent to 16 (n = 16) capillaries to which various building blocks are supplied for the chemistry library synthesis at the optimal conditions obtained by multiplex screening of 96 different reaction variables in reaction time, concentration, and product type. The proficiency of the flow parallel synthesizer is showcased by multiplex formation of various C-C, C-N, C-X, and C-S bonds, leading to optimization of 24 different aryl diazonium chemistries.
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Affiliation(s)
- Gwang-Noh Ahn
- grid.49100.3c0000 0001 0742 4007Department of Chemical Engineering, Center for Intelligent Microprocess Pharmaceutical Synthesis, Pohang University of Science and Technology (POSTECH), Pohang, 790-784 Republic of Korea
| | - Brijesh M. Sharma
- grid.49100.3c0000 0001 0742 4007Department of Chemical Engineering, Center for Intelligent Microprocess Pharmaceutical Synthesis, Pohang University of Science and Technology (POSTECH), Pohang, 790-784 Republic of Korea
| | - Santosh Lahore
- grid.49100.3c0000 0001 0742 4007Department of Chemical Engineering, Center for Intelligent Microprocess Pharmaceutical Synthesis, Pohang University of Science and Technology (POSTECH), Pohang, 790-784 Republic of Korea
| | - Se-Jun Yim
- grid.49100.3c0000 0001 0742 4007Department of Chemical Engineering, Center for Intelligent Microprocess Pharmaceutical Synthesis, Pohang University of Science and Technology (POSTECH), Pohang, 790-784 Republic of Korea
| | - Shinde Vidyacharan
- grid.49100.3c0000 0001 0742 4007Department of Chemical Engineering, Center for Intelligent Microprocess Pharmaceutical Synthesis, Pohang University of Science and Technology (POSTECH), Pohang, 790-784 Republic of Korea
| | - Dong-Pyo Kim
- grid.49100.3c0000 0001 0742 4007Department of Chemical Engineering, Center for Intelligent Microprocess Pharmaceutical Synthesis, Pohang University of Science and Technology (POSTECH), Pohang, 790-784 Republic of Korea
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17
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18
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Klement T, Hanf S, Wolff F, Kockmann N, Schunk SA, Röder T. Oscillating droplet reactor – towards kinetic investigations in heterogeneous catalysis on a droplet scale. REACT CHEM ENG 2021. [DOI: 10.1039/d0re00466a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work we present a new concept of a millistructured capillary reactor setup for contactless kinetic measurements via in-line Raman spectroscopy for three phase reactions in single slugs.
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Affiliation(s)
- Torsten Klement
- Mannheim University of Applied Sciences
- Institute of Chemical, Process Engineering
- 68163 Mannheim
- Germany
| | | | - Fabian Wolff
- Mannheim University of Applied Sciences
- Institute of Chemical, Process Engineering
- 68163 Mannheim
- Germany
| | - Norbert Kockmann
- Technische Universität Dortmund
- Fakultät für Bio- und Chemieingenieurwesen, Apparatedesign
- 44227 Dortmund
- Germany
| | | | - Thorsten Röder
- Mannheim University of Applied Sciences
- Institute of Chemical, Process Engineering
- 68163 Mannheim
- Germany
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19
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Sun AC, Steyer DJ, Allen AR, Payne EM, Kennedy RT, Stephenson CRJ. A droplet microfluidic platform for high-throughput photochemical reaction discovery. Nat Commun 2020; 11:6202. [PMID: 33273454 PMCID: PMC7712835 DOI: 10.1038/s41467-020-19926-z] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 11/04/2020] [Indexed: 02/03/2023] Open
Abstract
The implementation of continuous flow technology is critical towards enhancing the application of photochemical reactions for industrial process development. However, there are significant time and resource constraints associated with translating discovery scale vial-based batch reactions to continuous flow scale-up conditions. Herein we report the development of a droplet microfluidic platform, which enables high-throughput reaction discovery in flow to generate pharmaceutically relevant compound libraries. This platform allows for enhanced material efficiency, as reactions can be performed on picomole scale. Furthermore, high-throughput data collection via on-line ESI mass spectrometry facilitates the rapid analysis of individual, nanoliter-sized reaction droplets at acquisition rates of 0.3 samples/s. We envision this high-throughput screening platform to expand upon the robust capabilities and impact of photochemical reactions in drug discovery and development.
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Affiliation(s)
- Alexandra C Sun
- Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - Daniel J Steyer
- Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - Anthony R Allen
- Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - Emory M Payne
- Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - Robert T Kennedy
- Department of Chemistry, University of Michigan, Ann Arbor, MI, USA.
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20
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Mo Y, Rughoobur G, Nambiar AMK, Zhang K, Jensen KF. A Multifunctional Microfluidic Platform for High‐Throughput Experimentation of Electroorganic Chemistry. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009819] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yiming Mo
- Department of Chemical Engineering Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Girish Rughoobur
- Electrical Engineering and Computer Science Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Anirudh M. K. Nambiar
- Department of Chemical Engineering Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Kara Zhang
- Department of Chemical Engineering Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Klavs F. Jensen
- Department of Chemical Engineering Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
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21
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Mo Y, Rughoobur G, Nambiar AMK, Zhang K, Jensen KF. A Multifunctional Microfluidic Platform for High‐Throughput Experimentation of Electroorganic Chemistry. Angew Chem Int Ed Engl 2020; 59:20890-20894. [DOI: 10.1002/anie.202009819] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Indexed: 01/11/2023]
Affiliation(s)
- Yiming Mo
- Department of Chemical Engineering Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Girish Rughoobur
- Electrical Engineering and Computer Science Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Anirudh M. K. Nambiar
- Department of Chemical Engineering Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Kara Zhang
- Department of Chemical Engineering Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Klavs F. Jensen
- Department of Chemical Engineering Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
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22
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Flow chemistry as a tool to access novel chemical space for drug discovery. Future Med Chem 2020; 12:1547-1563. [DOI: 10.4155/fmc-2020-0075] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
This perspective scrutinizes flow chemistry as a useful tool for medicinal chemists to expand the current chemical capabilities in drug discovery. This technology has demonstrated his value not only for the traditional reactions used in Pharma for the last 20 years, but also for bringing back to the lab underused chemistries to access novel chemical space. The combination with other technologies, such as photochemistry and electrochemistry, is opening new avenues for reactivity that will smoothen the access to complex molecules. The introduction of all these technologies in automated platforms will improve the productivity of medicinal chemistry labs reducing the cycle times to get novel and differentiated bioactive molecules, accelerating discovery cycle times.
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23
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Abstract
AbstractOscillatory flow reactors (OFRs) superimpose an oscillatory flow to the net movement through a flow reactor. OFRs have been engineered to enable improved mixing, excellent heat- and mass transfer and good plug flow character under a broad range of operating conditions. Such features render these reactors appealing, since they are suitable for reactions that require long residence times, improved mass transfer (such as in biphasic liquid-liquid systems) or to homogeneously suspend solid particles. Various OFR configurations, offering specific features, have been developed over the past two decades, with significant progress still being made. This review outlines the principles and recent advances in OFR technology and overviews the synthetic applications of OFRs for liquid-liquid and solid-liquid biphasic systems.
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24
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Bobers J, Grühn J, Höving S, Pyka T, Kockmann N. Two-Phase Flow in a Coiled Flow Inverter: Process Development from Batch to Continuous Flow. Org Process Res Dev 2020. [DOI: 10.1021/acs.oprd.0c00152] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jens Bobers
- Department of Chemical and Biochemical Engineering, Laboratory of Equipment Design, TU Dortmund University, Emil-Figge-Strasse 68, 44227 Dortmund, Germany
| | - Julia Grühn
- Department of Chemical and Biochemical Engineering, Laboratory of Equipment Design, TU Dortmund University, Emil-Figge-Strasse 68, 44227 Dortmund, Germany
| | - Stefan Höving
- Department of Chemical and Biochemical Engineering, Laboratory of Equipment Design, TU Dortmund University, Emil-Figge-Strasse 68, 44227 Dortmund, Germany
| | - Tobias Pyka
- Department of Chemical and Biochemical Engineering, Laboratory of Equipment Design, TU Dortmund University, Emil-Figge-Strasse 68, 44227 Dortmund, Germany
| | - Norbert Kockmann
- Department of Chemical and Biochemical Engineering, Laboratory of Equipment Design, TU Dortmund University, Emil-Figge-Strasse 68, 44227 Dortmund, Germany
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25
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Raghuvanshi K, Zhu C, Ramezani M, Menegatti S, Santiso EE, Mason D, Rodgers J, Janka ME, Abolhasani M. Highly Efficient 1-Octene Hydroformylation at Low Syngas Pressure: From Single-Droplet Screening to Continuous Flow Synthesis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01515] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Keshav Raghuvanshi
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, North Carolina 27695, United States
| | - Cheng Zhu
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, North Carolina 27695, United States
| | - Mahdi Ramezani
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, North Carolina 27695, United States
| | - Stefano Menegatti
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, North Carolina 27695, United States
| | - Erik E. Santiso
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, North Carolina 27695, United States
| | - Dawn Mason
- Eastman Chemical Company, Technology, 200 S. Wilcox Dr., Kingsport, Tennessee 37660, United States
| | - Jody Rodgers
- Eastman Chemical Company, Technology, 200 S. Wilcox Dr., Kingsport, Tennessee 37660, United States
| | - Mesfin E. Janka
- Eastman Chemical Company, Technology, 200 S. Wilcox Dr., Kingsport, Tennessee 37660, United States
| | - Milad Abolhasani
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, North Carolina 27695, United States
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26
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Coley CW, Eyke NS, Jensen KF. Autonomous Discovery in the Chemical Sciences Part I: Progress. Angew Chem Int Ed Engl 2020; 59:22858-22893. [DOI: 10.1002/anie.201909987] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Indexed: 01/05/2023]
Affiliation(s)
- Connor W. Coley
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Natalie S. Eyke
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Klavs F. Jensen
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
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27
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Coley CW, Eyke NS, Jensen KF. Autonome Entdeckung in den chemischen Wissenschaften, Teil I: Fortschritt. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201909987] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Connor W. Coley
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Natalie S. Eyke
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Klavs F. Jensen
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
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28
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Abstract
A reactor capable of efficiently collecting kinetic data in flow is presented. Conversion over time data is obtained by cycling a discrete reaction slug back and forth between two residence coils, with analysis performed each time the solution is passed between the two. In contrast to a traditional steady-state continuous flow system, which requires upward of 5× the total reaction time to obtain reaction progress data, this design achieves much higher efficiency by collecting all data during a single reaction. In combination with minimal material consumption (reactions performed in 300 μL slugs), this represents an improvement in efficiency for typical kinetic experimentation in batch as well. Application to kinetic analysis of a wide variety of transformations (acylation, SNAr, silylation, solvolysis, Pd catalyzed C-S cross-coupling and cycloadditions) is demonstrated, highlighting both the versatility of the reactor and the benefits of performing kinetic analysis as a routine part of reaction optimization/development. Extension to the monitoring of multiple reactions simultaneously is also realized by operating the reactor with multiple reaction slugs at the same time.
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Affiliation(s)
- Ryan J Sullivan
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, Ontario, Canada K1N 6N5
| | - Stephen G Newman
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, Ontario, Canada K1N 6N5
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29
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Trojanowicz M. Flow Chemistry in Contemporary Chemical Sciences: A Real Variety of Its Applications. Molecules 2020; 25:E1434. [PMID: 32245225 PMCID: PMC7146634 DOI: 10.3390/molecules25061434] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 03/14/2020] [Accepted: 03/16/2020] [Indexed: 12/15/2022] Open
Abstract
Flow chemistry is an area of contemporary chemistry exploiting the hydrodynamic conditions of flowing liquids to provide particular environments for chemical reactions. These particular conditions of enhanced and strictly regulated transport of reagents, improved interface contacts, intensification of heat transfer, and safe operation with hazardous chemicals can be utilized in chemical synthesis, both for mechanization and automation of analytical procedures, and for the investigation of the kinetics of ultrafast reactions. Such methods are developed for more than half a century. In the field of chemical synthesis, they are used mostly in pharmaceutical chemistry for efficient syntheses of small amounts of active substances. In analytical chemistry, flow measuring systems are designed for environmental applications and industrial monitoring, as well as medical and pharmaceutical analysis, providing essential enhancement of the yield of analyses and precision of analytical determinations. The main concept of this review is to show the overlapping of development trends in the design of instrumentation and various ways of the utilization of specificity of chemical operations under flow conditions, especially for synthetic and analytical purposes, with a simultaneous presentation of the still rather limited correspondence between these two main areas of flow chemistry.
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Affiliation(s)
- Marek Trojanowicz
- Laboratory of Nuclear Analytical Methods, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03–195 Warsaw, Poland;
- Department of Chemistry, University of Warsaw, Pasteura 1, 02–093 Warsaw, Poland
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30
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Chatterjee S, Guidi M, Seeberger PH, Gilmore K. Automated radial synthesis of organic molecules. Nature 2020; 579:379-384. [PMID: 32188949 DOI: 10.1038/s41586-020-2083-5] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 01/22/2020] [Indexed: 01/29/2023]
Abstract
Automated synthesis platforms accelerate and simplify the preparation of molecules by removing the physical barriers to organic synthesis. This provides unrestricted access to biopolymers and small molecules via reproducible and directly comparable chemical processes. Current automated multistep syntheses rely on either iterative1-4 or linear processes5-9, and require compromises in terms of versatility and the use of equipment. Here we report an approach towards the automated synthesis of small molecules, based on a series of continuous flow modules that are radially arranged around a central switching station. Using this approach, concise volumes can be exposed to any reaction conditions required for a desired transformation. Sequential, non-simultaneous reactions can be combined to perform multistep processes, enabling the use of variable flow rates, reuse of reactors under different conditions, and the storage of intermediates. This fully automated instrument is capable of both linear and convergent syntheses and does not require manual reconfiguration between different processes. The capabilities of this approach are demonstrated by performing optimizations and multistep syntheses of targets, varying concentrations via inline dilutions, exploring several strategies for the multistep synthesis of the anticonvulsant drug rufinamide10, synthesizing eighteen compounds of two derivative libraries that are prepared using different reaction pathways and chemistries, and using the same reagents to perform metallaphotoredox carbon-nitrogen cross-couplings11 in a photochemical module-all without instrument reconfiguration.
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Affiliation(s)
- Sourav Chatterjee
- Department of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, Potsdam, Germany
| | - Mara Guidi
- Department of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, Potsdam, Germany.,Freie Universität Berlin, Institute of Chemistry and Biochemistry, Berlin, Germany
| | - Peter H Seeberger
- Department of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, Potsdam, Germany.,Freie Universität Berlin, Institute of Chemistry and Biochemistry, Berlin, Germany
| | - Kerry Gilmore
- Department of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, Potsdam, Germany.
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31
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Gioiello A, Piccinno A, Lozza AM, Cerra B. The Medicinal Chemistry in the Era of Machines and Automation: Recent Advances in Continuous Flow Technology. J Med Chem 2020; 63:6624-6647. [PMID: 32049517 PMCID: PMC7997576 DOI: 10.1021/acs.jmedchem.9b01956] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
![]()
Medicinal
chemistry plays a fundamental and underlying role in
chemical biology, pharmacology, and medicine to discover safe and
efficacious drugs. Small molecule medicinal chemistry relies on iterative
learning cycles composed of compound design, synthesis, testing, and
data analysis to provide new chemical probes and lead compounds for
novel and druggable targets. Using traditional approaches, the time
from hypothesis to obtaining the results can be protracted, thus limiting
the number of compounds that can be advanced into clinical studies.
This challenge can be tackled with the recourse of enabling technologies
that are showing great potential in improving the drug discovery process.
In this Perspective, we highlight recent developments toward innovative
medicinal chemistry strategies based on continuous flow systems coupled
with automation and bioassays. After a discussion of the aims and
concepts, we describe equipment and representative examples of automated
flow systems and end-to-end prototypes realized to expedite medicinal
chemistry discovery cycles.
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Affiliation(s)
- Antimo Gioiello
- Laboratory of Medicinal and Advanced Synthetic Chemistry (Lab MASC), Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy
| | - Alessandro Piccinno
- Laboratory of Medicinal and Advanced Synthetic Chemistry (Lab MASC), Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy
| | - Anna Maria Lozza
- Laboratory of Medicinal and Advanced Synthetic Chemistry (Lab MASC), Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy
| | - Bruno Cerra
- Laboratory of Medicinal and Advanced Synthetic Chemistry (Lab MASC), Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy
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32
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Pishbin E, Kazemzadeh A, Chimerad M, Asiaei S, Navidbakhsh M, Russom A. Frequency dependent multiphase flows on centrifugal microfluidics. LAB ON A CHIP 2020; 20:514-524. [PMID: 31898702 DOI: 10.1039/c9lc00924h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The simultaneous flow of gas and liquids in large scale conduits is an established approach to enhance the performance of different working systems under critical conditions. On the microscale, the use of gas-liquid flows is challenging due to the dominance of surface tension forces. Here, we present a technique to generate common gas-liquid flows on a centrifugal microfluidic platform. It consists of a spiral microchannel and specific micro features that allow for temporal and local control of stratified and slug flow regimes. We investigate several critical parameters that induce different gas-liquid flows and cause the transition between stratified and slug flows. We have analytically derived formulations that are compared with our experimental results to deliver a general guideline for designing specific gas-liquid flows. As an application of the gas-liquid flows in enhancing microfluidic systems' performance, we show the acceleration of the cell growth of E. coli bacteria in comparison to traditional culturing methods.
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Affiliation(s)
- Esmail Pishbin
- School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Amin Kazemzadeh
- Division of Nanobiotechnology, Department of Protein Sciences, Science for Life Laboratory, KTH Royal Institute of Technology, Stockholm, Sweden.
| | - Mohammadreza Chimerad
- School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Sasan Asiaei
- School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Mahdi Navidbakhsh
- School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Aman Russom
- Division of Nanobiotechnology, Department of Protein Sciences, Science for Life Laboratory, KTH Royal Institute of Technology, Stockholm, Sweden.
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33
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34
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Ładosz A, Kuhnle C, Jensen KF. Characterization of reaction enthalpy and kinetics in a microscale flow platform. REACT CHEM ENG 2020. [DOI: 10.1039/d0re00304b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We report an isothermal flow calorimeter for characterization of reaction enthalpy and kinetics.
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Affiliation(s)
- Agnieszka Ładosz
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
| | - Christina Kuhnle
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
| | - Klavs F. Jensen
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
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Jankowski P, Kutaszewicz R, Ogończyk D, Garstecki P. A microfluidic platform for screening and optimization of organic reactions in droplets. J Flow Chem 2019. [DOI: 10.1007/s41981-019-00055-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Bennett JA, Campbell ZS, Abolhasani M. Role of continuous flow processes in green manufacturing of pharmaceuticals and specialty chemicals. Curr Opin Chem Eng 2019. [DOI: 10.1016/j.coche.2019.07.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Coley CW, Thomas DA, Lummiss JAM, Jaworski JN, Breen CP, Schultz V, Hart T, Fishman JS, Rogers L, Gao H, Hicklin RW, Plehiers PP, Byington J, Piotti JS, Green WH, Hart AJ, Jamison TF, Jensen KF. A robotic platform for flow synthesis of organic compounds informed by AI planning. Science 2019; 365:365/6453/eaax1566. [DOI: 10.1126/science.aax1566] [Citation(s) in RCA: 338] [Impact Index Per Article: 67.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 07/02/2019] [Indexed: 12/18/2022]
Abstract
The synthesis of complex organic molecules requires several stages, from ideation to execution, that require time and effort investment from expert chemists. Here, we report a step toward a paradigm of chemical synthesis that relieves chemists from routine tasks, combining artificial intelligence–driven synthesis planning and a robotically controlled experimental platform. Synthetic routes are proposed through generalization of millions of published chemical reactions and validated in silico to maximize their likelihood of success. Additional implementation details are determined by expert chemists and recorded in reusable recipe files, which are executed by a modular continuous-flow platform that is automatically reconfigured by a robotic arm to set up the required unit operations and carry out the reaction. This strategy for computer-augmented chemical synthesis is demonstrated for 15 drug or drug-like substances.
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Baumann M. Integrating continuous flow synthesis with in-line analysis and data generation. Org Biomol Chem 2019; 16:5946-5954. [PMID: 30062354 DOI: 10.1039/c8ob01437j] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Continuous flow synthesis of fine chemicals has successfully advanced from an academic niche area to a rapidly growing field of its own that directly impacts developments and applications in industrial settings. Whilst the numerous advantages of flow over batch processing are widely recognised and have led to a wider uptake of continuous flow synthesis within the community, we have reached a point where continuous flow synthesis has to transition from a stand-alone enabling technology to a readily integrated synthesis concept. Thus it is paramount to embrace a multitude of in-line analysis and purification techniques to not only allow for efficiently telescoped multi-step sequences but ultimately generate bioactivity data concomitantly on newly synthesised entities. This short review summarises the state of the art in this field and presents both challenges and opportunities that arise from this ambitious endeavour.
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Affiliation(s)
- Marcus Baumann
- School of Chemistry, University College Dublin, Science Centre South, Belfield, Dublin 4, Ireland.
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Klement T, Kockmann N, Röder T. Reactor Concept for Contactless Kinetic Measurement in Oscillating Droplets via Raman Spectroscopy. CHEM-ING-TECH 2019. [DOI: 10.1002/cite.201800199] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Torsten Klement
- Mannheim University of Applied SciencesInstitute of Chemical Process Engineering Paul-Wittsack-Straße 10 68163 Mannheim Germany
- TU Dortmund UniversityFaculty of Biochemical and Chemical Engineering, Laboratory of Equipment Design Emil-Figge-Straße 70 44227 Dortmund Germany
| | - Norbert Kockmann
- TU Dortmund UniversityFaculty of Biochemical and Chemical Engineering, Laboratory of Equipment Design Emil-Figge-Straße 70 44227 Dortmund Germany
| | - Thorsten Röder
- Mannheim University of Applied SciencesInstitute of Chemical Process Engineering Paul-Wittsack-Straße 10 68163 Mannheim Germany
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Bogdan AR, Dombrowski AW. Emerging Trends in Flow Chemistry and Applications to the Pharmaceutical Industry. J Med Chem 2019; 62:6422-6468. [DOI: 10.1021/acs.jmedchem.8b01760] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Andrew R. Bogdan
- Discovery Chemistry and Technology, AbbVie, Inc. 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Amanda W. Dombrowski
- Discovery Chemistry and Technology, AbbVie, Inc. 1 North Waukegan Road, North Chicago, Illinois 60064, United States
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Abstract
This minireview offers an up-to-date overview of enabling tools for biphasic liquid–liquid reactions in flow.
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Abstract
Computer-aided synthesis planning (CASP) is focused on the goal of accelerating the process by which chemists decide how to synthesize small molecule compounds. The ideal CASP program would take a molecular structure as input and output a sorted list of detailed reaction schemes that each connect that target to purchasable starting materials via a series of chemically feasible reaction steps. Early work in this field relied on expert-crafted reaction rules and heuristics to describe possible retrosynthetic disconnections and selectivity rules but suffered from incompleteness, infeasible suggestions, and human bias. With the relatively recent availability of large reaction corpora (such as the United States Patent and Trademark Office (USPTO), Reaxys, and SciFinder databases), consisting of millions of tabulated reaction examples, it is now possible to construct and validate purely data-driven approaches to synthesis planning. As a result, synthesis planning has been opened to machine learning techniques, and the field is advancing rapidly. In this Account, we focus on two critical aspects of CASP and recent machine learning approaches to both challenges. First, we discuss the problem of retrosynthetic planning, which requires a recommender system to propose synthetic disconnections starting from a target molecule. We describe how the search strategy, necessary to overcome the exponential growth of the search space with increasing number of reaction steps, can be assisted through a learned synthetic complexity metric. We also describe how the recursive expansion can be performed by a straightforward nearest neighbor model that makes clever use of reaction data to generate high quality retrosynthetic disconnections. Second, we discuss the problem of anticipating the products of chemical reactions, which can be used to validate proposed reactions in a computer-generated synthesis plan (i.e., reduce false positives) to increase the likelihood of experimental success. While we introduce this task in the context of reaction validation, its utility extends to the prediction of side products and impurities, among other applications. We describe neural network-based approaches that we and others have developed for this forward prediction task that can be trained on previously published experimental data. Machine learning and artificial intelligence have revolutionized a number of disciplines, not limited to image recognition, dictation, translation, content recommendation, advertising, and autonomous driving. While there is a rich history of using machine learning for structure-activity models in chemistry, it is only now that it is being successfully applied more broadly to organic synthesis and synthesis design. As reported in this Account, machine learning is rapidly transforming CASP, but there are several remaining challenges and opportunities, many pertaining to the availability and standardization of both data and evaluation metrics, which must be addressed by the community at large.
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Affiliation(s)
- Connor W. Coley
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - William H. Green
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Klavs F. Jensen
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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Hsieh HW, Coley CW, Baumgartner LM, Jensen KF, Robinson RI. Photoredox Iridium–Nickel Dual-Catalyzed Decarboxylative Arylation Cross-Coupling: From Batch to Continuous Flow via Self-Optimizing Segmented Flow Reactor. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.8b00018] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Hsiao-Wu Hsieh
- Global Discovery Chemistry − Chemical Technology Group, Novartis Institutes for Biomedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Connor W. Coley
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Lorenz M. Baumgartner
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Klavs F. Jensen
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Richard I. Robinson
- Global Discovery Chemistry − Chemical Technology Group, Novartis Institutes for Biomedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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Baumgartner LM, Coley CW, Reizman BJ, Gao KW, Jensen KF. Optimum catalyst selection over continuous and discrete process variables with a single droplet microfluidic reaction platform. REACT CHEM ENG 2018. [DOI: 10.1039/c8re00032h] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A mixed-integer nonlinear program (MINLP) algorithm to optimize catalyst turnover number (TON) and product yield by simultaneously modulating discrete variables—catalyst types—and continuous variables—temperature, residence time, and catalyst loading—was implemented and validated.
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Affiliation(s)
| | - Connor W. Coley
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
| | - Brandon J. Reizman
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
| | - Kevin W. Gao
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
- Department of Chemical and Biomolecular Engineering
| | - Klavs F. Jensen
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
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Giraudeau P, Felpin FX. Flow reactors integrated with in-line monitoring using benchtop NMR spectroscopy. REACT CHEM ENG 2018. [DOI: 10.1039/c8re00083b] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The state-of-the-art flow reactors integrated with in-line benchtop NMR are thoroughly discussed with highlights on the strengths and weaknesses of this emerging technology.
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Affiliation(s)
- Patrick Giraudeau
- UFR des Sciences et des Techniques
- CNRS UMR 6230
- CEISAM
- Université de Nantes
- 44322 Nantes Cedex 3
| | - François-Xavier Felpin
- UFR des Sciences et des Techniques
- CNRS UMR 6230
- CEISAM
- Université de Nantes
- 44322 Nantes Cedex 3
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Reis MH, Davidson CLG, Leibfarth FA. Continuous-flow chemistry for the determination of comonomer reactivity ratios. Polym Chem 2018. [DOI: 10.1039/c7py01938f] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Continuous-flow chemistry provides an operationally simple and reproducible method for the determination of comonomer reactivity ratios in a single afternoon.
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Affiliation(s)
- Marcus H. Reis
- Department of Chemistry
- The University of North Carolina at Chapel Hill
- Chapel Hill
- USA
| | - Cullen L. G. Davidson
- Department of Chemistry
- The University of North Carolina at Chapel Hill
- Chapel Hill
- USA
| | - Frank A. Leibfarth
- Department of Chemistry
- The University of North Carolina at Chapel Hill
- Chapel Hill
- USA
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Coley CW, Abolhasani M, Lin H, Jensen KF. Material‐Efficient Microfluidic Platform for Exploratory Studies of Visible‐Light Photoredox Catalysis. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705148] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Connor W. Coley
- Department of Chemical Engineering Massachusetts Institute of Technology 77 Massachsuetts Avenue Cambridge MA 02139 USA
| | - Milad Abolhasani
- Department of Chemical Engineering Massachusetts Institute of Technology 77 Massachsuetts Avenue Cambridge MA 02139 USA
- Department of Chemical and Biomolecular Engineering North Carolina State University 911 Partners Way Raleigh NC 27695 USA
| | - Hongkun Lin
- Department of Chemical Engineering Massachusetts Institute of Technology 77 Massachsuetts Avenue Cambridge MA 02139 USA
| | - Klavs F. Jensen
- Department of Chemical Engineering Massachusetts Institute of Technology 77 Massachsuetts Avenue Cambridge MA 02139 USA
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Coley CW, Abolhasani M, Lin H, Jensen KF. Material‐Efficient Microfluidic Platform for Exploratory Studies of Visible‐Light Photoredox Catalysis. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/anie.201705148] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Connor W. Coley
- Department of Chemical Engineering Massachusetts Institute of Technology 77 Massachsuetts Avenue Cambridge MA 02139 USA
| | - Milad Abolhasani
- Department of Chemical Engineering Massachusetts Institute of Technology 77 Massachsuetts Avenue Cambridge MA 02139 USA
- Department of Chemical and Biomolecular Engineering North Carolina State University 911 Partners Way Raleigh NC 27695 USA
| | - Hongkun Lin
- Department of Chemical Engineering Massachusetts Institute of Technology 77 Massachsuetts Avenue Cambridge MA 02139 USA
| | - Klavs F. Jensen
- Department of Chemical Engineering Massachusetts Institute of Technology 77 Massachsuetts Avenue Cambridge MA 02139 USA
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