1
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Satta M, Passarini F, Cespi D, Ciacci L. Advantages and drawbacks of life cycle assessment application to the pharmaceuticals: a short critical literature review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-33964-w. [PMID: 38898347 DOI: 10.1007/s11356-024-33964-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 06/07/2024] [Indexed: 06/21/2024]
Abstract
Pharmaceuticals are among the most challenging products to assess by life cycle assessment (LCA). The main drawback highlighted by LCA practitioners is the lack of inventory data, both regarding the synthesis of active pharmaceutical ingredient (API) precursors (upstream) and the details concerning the downstream phases (use and end of life). A short critical review of pharma-LCAs found in the literature is here proposed, with discussion of several tools and models used to predict the environmental impacts derived from the life cycle of pharmaceuticals, emphasizing current strengths and weaknesses, and exploring the possibilities for improvements. The case of antibiotics is selected as a representative class of pharmaceuticals, due to their massive use worldwide and the growing related issue of antimicrobial resistance enrichment, which is generally not included in most of LCAs. Also, we comment on drafting product category rules (PCRs) in the relevant field to develop standard methodologies and enhance the comparability of the studies, ultimately advocating collaboration with companies and improving inventory data quality and availability for the whole value chain of products.
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Affiliation(s)
- Marco Satta
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Via Piero Gobetti 85, 40136, Bologna, Italy
| | - Fabrizio Passarini
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Via Piero Gobetti 85, 40136, Bologna, Italy
- Interdepartmental Centre of Industrial Research "Renewable Resources, Environment, Sea and Energy", University of Bologna, Via Angherà 22, 47922, Rimini, Italy
| | - Daniele Cespi
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Via Piero Gobetti 85, 40136, Bologna, Italy.
- Interdepartmental Centre of Industrial Research "Renewable Resources, Environment, Sea and Energy", University of Bologna, Via Angherà 22, 47922, Rimini, Italy.
| | - Luca Ciacci
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Via Piero Gobetti 85, 40136, Bologna, Italy
- Interdepartmental Centre of Industrial Research "Renewable Resources, Environment, Sea and Energy", University of Bologna, Via Angherà 22, 47922, Rimini, Italy
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2
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Lei Z, Ang HT, Wu J. Advanced In-Line Purification Technologies in Multistep Continuous Flow Pharmaceutical Synthesis. Org Process Res Dev 2023. [DOI: 10.1021/acs.oprd.2c00374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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3
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Comito M, Monguzzi R, Tagliapietra S, Palmisano G, Cravotto G. Towards Antibiotic Synthesis in Continuous-Flow Processes. Molecules 2023; 28:molecules28031421. [PMID: 36771086 PMCID: PMC9919330 DOI: 10.3390/molecules28031421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 02/05/2023] Open
Abstract
Continuous-flow chemistry has become a mainstream process and a notable trend among emerging technologies for drug synthesis. It is routinely used in academic and industrial laboratories to generate a wide variety of molecules and building blocks. The advantages it provides, in terms of safety, speed, cost efficiency and small-equipment footprint compared to analog batch processes, have been known for some time. What has become even more important in recent years is its compliance with the quality objectives that are required by drug-development protocols that integrate inline analysis and purification tools. There can be no doubt that worldwide government agencies have strongly encouraged the study and implementation of this innovative, sustainable and environmentally friendly technology. In this brief review, we list and evaluate the development and applications of continuous-flow processes for antibiotic synthesis. This work spans the period of 2012-2022 and highlights the main cases in which either active ingredients or their intermediates were produced under continuous flow. We hope that this manuscript will provide an overview of the field and a starting point for a deeper understanding of the impact of flow chemistry on the broad panorama of antibiotic synthesis.
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Affiliation(s)
- Marziale Comito
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, Via Pietro Giuria 9, 10125 Turin, Italy
- Research and Development, ACS Dobfar SpA, Via Paullo 9, 20067 Tribiano, Italy
| | - Riccardo Monguzzi
- Research and Development, ACS Dobfar SpA, Via Paullo 9, 20067 Tribiano, Italy
| | - Silvia Tagliapietra
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, Via Pietro Giuria 9, 10125 Turin, Italy
| | - Giovanni Palmisano
- Dipartimento di Scienza e Alta Tecnologia, University of Insubria, Via Valleggio 9, 22100 Como, Italy
| | - Giancarlo Cravotto
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, Via Pietro Giuria 9, 10125 Turin, Italy
- Correspondence: ; Tel.: +39-011-670-7183
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4
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Gill MSA, Azzman N, Hassan SS, Shah SAA, Ahemad N. A green and efficient synthetic methodology towards the synthesis of 1-allyl-6-chloro-4-oxo-1,4-dihydroquinoline-3-carboxamide derivatives. BMC Chem 2022; 16:111. [PMID: 36482476 PMCID: PMC9733071 DOI: 10.1186/s13065-022-00902-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 11/14/2022] [Indexed: 12/13/2022] Open
Abstract
Quinolone is a privileged scaffold in medicinal chemistry and 4-Quinolone-3-Carboxamides have been reported to harbor vast therapeutic potential. However, conversion of N-1 substituted 4-Quinolone 3-Carboxylate to its corresponding carbamates is highly restrictive. This motivated us to adopt a much simpler, scalable and efficient methodology for the synthesis of highly pure N-1 substituted 4- Quinolone-3-Carboxamides with excellent yields. Our adopted methodology not only provides a robust pathway for the convenient synthesis of N-1 substituted 4- Quinolone-3-Carboxamides which can then be explored for their therapeutic potential, this may also be adaptable for the derivatization of other such less reactive carboxylate species.
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Affiliation(s)
- Muhammad Shoaib Ali Gill
- grid.440425.30000 0004 1798 0746School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Petaling Jaya, Selangor DE Malaysia ,grid.412967.f0000 0004 0609 0799Institute of Pharmaceutical Sciences, University of Veterinary and Animal Sciences, Syed Abdul Qadir Jillani, Out Fall Road, Lahore, Pakistan
| | - Nursyuhada Azzman
- grid.440425.30000 0004 1798 0746School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Petaling Jaya, Selangor DE Malaysia ,grid.412259.90000 0001 2161 1343Faculty of Pharmacy, Universiti Teknologi MARA, Cawangan Pulau Pinang Kampus Bertam, 13200 Kepala Batas, Pulau Pinang Malaysia
| | - Sharifah Syed Hassan
- grid.440425.30000 0004 1798 0746Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Petaling Jaya, Selangor DE Malaysia
| | - Syed Adnan Ali Shah
- grid.412259.90000 0001 2161 1343Faculty of Pharmacy, Universiti Teknologi MARA Cawangan Selangor Kampus Puncak Alam, 42300 Bandar Puncak Alam, Selangor DE Malaysia
| | - Nafees Ahemad
- grid.440425.30000 0004 1798 0746School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Petaling Jaya, Selangor DE Malaysia ,grid.440425.30000 0004 1798 0746Tropical Medicine and Biology Multidisciplinary Platform, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Petaling Jaya, Selangor DE Malaysia
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5
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Continuous production of 3,5,5-trimethylhexanoyl chloride and CFD simulations of single-phase flow in an advanced-flow reactor. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104465] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Vinet L, Di Marco L, Kairouz V, Charette AB. Process Intensive Synthesis of Propofol Enabled by Continuous Flow Chemistry. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.1c00416] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Laurent Vinet
- Centre in Green Chemistry and Catalysis, Center for Continuous Flow Synthesis, Department of Chemistry, Université de Montréal, 1375, av. Thérèse Lavoie-Roux, Montréal, Québec H2V 0B3, Canada
| | - Lorenzo Di Marco
- Centre in Green Chemistry and Catalysis, Center for Continuous Flow Synthesis, Department of Chemistry, Université de Montréal, 1375, av. Thérèse Lavoie-Roux, Montréal, Québec H2V 0B3, Canada
| | - Vanessa Kairouz
- Centre in Green Chemistry and Catalysis, Center for Continuous Flow Synthesis, Department of Chemistry, Université de Montréal, 1375, av. Thérèse Lavoie-Roux, Montréal, Québec H2V 0B3, Canada
| | - André B. Charette
- Centre in Green Chemistry and Catalysis, Center for Continuous Flow Synthesis, Department of Chemistry, Université de Montréal, 1375, av. Thérèse Lavoie-Roux, Montréal, Québec H2V 0B3, Canada
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7
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Li W, Jiang M, Liu M, Ling X, Xia Y, Wan L, Chen F. Development of a Fully Continuous-Flow Approach Towards Asymmetric Total Synthesis of Tetrahydroprotoberberine Natural Alkaloids. Chemistry 2022; 28:e202200700. [PMID: 35357730 DOI: 10.1002/chem.202200700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Indexed: 11/06/2022]
Abstract
Continuous flow synthetic technologies had been widely applied in the total synthesis in the past few decades. Fully continuous flow synthesis is still extremely focused on multi-step synthesis of complex natural pharmaceutical molecules. Thus, the development of fully continuous flow total synthesis of natural products is in demand but challenging. Herein, we demonstrated the first fully continuous flow approach towards asymmetric total synthesis of natural tetrahydroprotoberberine alkaloids, (-)-isocanadine, (-)-tetrahydropseudocoptisine, (-)-stylopine and (-)-nandinine. This method features a concise linear sequence involving four chemical transformations and three on-line work-up processing in an integrated flow platform, without any intermediate purification. The overall yield and enantioselectivity of this four-step continuous flow chemistry were up to 50 % and 92 %ee, respectively, in a total residence time of 32.5 min, corresponding to a throughput of 145 mg/h.
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Affiliation(s)
- Weijian Li
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Meifen Jiang
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai, 200433, China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai, 200433, China
| | - Minjie Liu
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai, 200433, China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai, 200433, China
| | - Xu Ling
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Yingqi Xia
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Li Wan
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai, 200433, China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai, 200433, China
| | - Fener Chen
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China.,Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai, 200433, China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai, 200433, China
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8
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Kishor G, Ramesh V, Rao VR, Pabbaraja S, Adiyala PR. Regioselective C-3-alkylation of quinoxalin-2(1 H)-ones via C-N bond cleavage of amine derived Katritzky salts enabled by continuous-flow photoredox catalysis. RSC Adv 2022; 12:12235-12241. [PMID: 35517836 PMCID: PMC9053435 DOI: 10.1039/d2ra00753c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 03/24/2022] [Indexed: 11/26/2022] Open
Abstract
An efficient, transition metal-free visible-light-driven continuous-flow C-3-alkylation of quinoxalin-2(1H)-ones has been demonstrated by employing Katritzky salts as alkylating agents in the presence of eosin-y as a photoredox catalyst and DIPEA as a base at room temperature. The present protocol was accomplished by utilizing abundant and inexpensive alkyl amine (both primary and secondary alkyl) and as well as this a few amino acid feedstocks were converted into their corresponding redox-active pyridinium salts and subsequently into alkyl radicals. A wide variety of C-3-alkylated quinoxalin-2(1H)-ones were synthesized in moderate to high yields. Further this environmentally benign protocol is carried out in a PFA (Perfluoroalkoxy alkane) capillary based micro reactor under blue LED irradiation, enabling excellent yields (72% to 91%) and shorter reaction times (0.81 min) as compared to a batch system (16 h). An efficient, transition metal-free visible-light-driven continuous-flow C-3-alkylation of quinoxalin-2(1H)-ones has been demonstrated enabling excellent yields (72% to 91%) and shorter reaction time (0.81 min) as compared to batch system (16 h).![]()
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Affiliation(s)
- Gandhari Kishor
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT) Hyderabad 500007 India .,Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Vankudoth Ramesh
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT) Hyderabad 500007 India .,Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Vadithya Ranga Rao
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT) Hyderabad 500007 India .,Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Srihari Pabbaraja
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT) Hyderabad 500007 India .,Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Praveen Reddy Adiyala
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT) Hyderabad 500007 India .,Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
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9
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Burange AS, Osman SM, Luque R. Understanding flow chemistry for the production of active pharmaceutical ingredients. iScience 2022; 25:103892. [PMID: 35243250 PMCID: PMC8867129 DOI: 10.1016/j.isci.2022.103892] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Multi-step organic syntheses of various drugs, active pharmaceutical ingredients, and other pharmaceutically and agriculturally important compounds have already been reported using flow synthesis. Compared to batch, hazardous and reactive reagents can be handled safely in flow. This review discusses the pros and cons of flow chemistry in today’s scenario and recent developments in flow devices. The review majorly emphasizes on the recent developments in the flow synthesis of pharmaceutically important products in last five years including flibanserin, imatinib, buclizine, cinnarizine, cyclizine, meclizine, ribociclib, celecoxib, SC-560 and mavacoxib, efavirenz, fluconazole, melitracen HCl, rasagiline, tamsulosin, valsartan, and hydroxychloroquine. Critical steps and new development in the flow synthesis of selected compounds are also discussed.
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Affiliation(s)
- Anand S. Burange
- Department of Chemistry, Wilson College, Chowpatty, Mumbai 400007, India
- Corresponding author
| | - Sameh M. Osman
- Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Rafael Luque
- Departamento de Quimica Organica, Universidad de Cordoba, Edificio Marie Curie (C-3), Ctra Nnal IV-A, Km 396, E14014 Cordoba, Spain
- Peoples Friendship University of Russia (RUDN University), 6 Miklukho Maklaya str., 107198 Moscow, Russian Federation
- Corresponding author
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10
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Yu Z, Fan H, Cao C, Shao Y, Mu Z, Wang D, Zhu X, Su W. Development of a continuous flow process for the synthesis of mesotrione. J Flow Chem 2022. [DOI: 10.1007/s41981-022-00215-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Unraveling the sequence of electron flow along the cyclocondensation reaction between ciprofloxacin and thiosemicarbazide through the bonding evolution theory. J Mol Graph Model 2022; 113:108141. [DOI: 10.1016/j.jmgm.2022.108141] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 01/09/2022] [Accepted: 01/26/2022] [Indexed: 11/22/2022]
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12
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Sagandira CR, Khasipo AZ, Watts P. Total Synthesis of Glipizide and Glibenclamide in Continuous Flow. Chemistry 2021; 27:16028-16035. [PMID: 34633700 DOI: 10.1002/chem.202103196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Indexed: 11/09/2022]
Abstract
Glipizide and glibenclamide remain some of the widely prescribed antidiabetic sulfonylurea drugs for the treatment of type 2 diabetes mellitus. Herein the authors report on an isocyanate-free synthetic procedure towards the preparation of these on demand drugs at multigram scale using continuous flow technology. The safety concern over the use of isocyanates in most of the existing synthetic routes was dealt with in this present work by using N-carbamates synthesised in situ from activation of amines with chloroformates as safer alternatives. An overall yield of 80-85 % was obtained for the semi-telescoped steps within 10 min total residence time.
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Affiliation(s)
- Cloudius R Sagandira
- Department of Chemistry, Nelson Mandela University, University Way, Port Elizabeth, 6031, South Africa
| | - Agnes Z Khasipo
- Department of Chemistry, Nelson Mandela University, University Way, Port Elizabeth, 6031, South Africa
| | - Paul Watts
- Department of Chemistry, Nelson Mandela University, University Way, Port Elizabeth, 6031, South Africa
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13
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Patil NB, Atapalkar RS, Chavan SP, Kulkarni AA. Multi-Step Synthesis of Miltefosine: Integration of Flow Chemistry with Continuous Mechanochemistry. Chemistry 2021; 27:17695-17699. [PMID: 34697844 DOI: 10.1002/chem.202103499] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Indexed: 11/09/2022]
Abstract
Herein we report for the first time, an advanced continuous flow synthesis of the blockbuster Leishmaniasis drug miltefosine from simple starting materials by a sequence involving four steps of chemical transformation including a continuous mechanochemical step. First three reaction steps were performed in simple tubular reactors in a telescopic mode, while in the last step the product precipitated from the 3rd step was used for a continuous mechanochemical synthesis of miltefosine. When compared to a typical batch protocol that takes 15 h, miltefosine was obtained in 58 % overall yield in flow synthesis mode at the laboratory scale in a total residence time 34 min at synthesis rate of 10 g/hr, which is sufficient to treat 4800 patients per day.
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Affiliation(s)
- Niteen B Patil
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Ranjit S Atapalkar
- Chemical Engineering & Process Development, CSIR-National Chemical Laboratory, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Subhash P Chavan
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Amol A Kulkarni
- Chemical Engineering & Process Development, CSIR-National Chemical Laboratory, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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14
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Yalamanchili S, Nguyen T, Zsikla A, Stamper G, DeYong AE, Florek J, Vasquez O, Pohl NLB, Bennett CS. Automated, Multistep Continuous‐Flow Synthesis of 2,6‐Dideoxy and 3‐Amino‐2,3,6‐trideoxy Monosaccharide Building Blocks. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Tu‐Anh Nguyen
- Chemistry Tufts University 62 Talbot Ave Medford MA 02145 USA
| | | | - Gavin Stamper
- Chemistry Indiana University 800 E Kirkwood Ave Bloomington IN 47405 USA
| | - Ashley E. DeYong
- Chemistry Indiana University 800 E Kirkwood Ave Bloomington IN 47405 USA
| | - John Florek
- Chemistry Tufts University 62 Talbot Ave Medford MA 02145 USA
| | - Olivea Vasquez
- Chemistry Tufts University 62 Talbot Ave Medford MA 02145 USA
| | - Nicola L. B. Pohl
- Chemistry Indiana University 800 E Kirkwood Ave Bloomington IN 47405 USA
| | - Clay S. Bennett
- Chemistry Tufts University 62 Talbot Ave Medford MA 02145 USA
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15
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Yalamanchili S, Nguyen TA, Zsikla A, Stamper G, DeYong AE, Florek J, Vasquez O, Pohl NLB, Bennett CS. Automated, Multistep Continuous-Flow Synthesis of 2,6-Dideoxy and 3-Amino-2,3,6-trideoxy Monosaccharide Building Blocks. Angew Chem Int Ed Engl 2021; 60:23171-23175. [PMID: 34463017 PMCID: PMC8511145 DOI: 10.1002/anie.202109887] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Indexed: 12/31/2022]
Abstract
An automated continuous flow system capable of producing protected deoxy-sugar donors from commercial material is described. Four 2,6-dideoxy and two 3-amino-2,3,6-trideoxy sugars with orthogonal protecting groups were synthesized in 11-32 % overall yields in 74-131.5 minutes of total reaction time. Several of the reactions were able to be concatenated into a continuous process, avoiding the need for chromatographic purification of intermediates. The modular nature of the experimental setup allowed for reaction streams to be split into different lines for the parallel synthesis of multiple donors. Further, the continuous flow processes were fully automated and described through the design of an open-source Python-controlled automation platform.
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Affiliation(s)
| | - Tu-Anh Nguyen
- Chemistry, Tufts University, 62 Talbot Ave, Medford, MA 02145
| | | | - Gavin Stamper
- Chemistry, Indiana University, 800 E Kirkwood Ave, Bloomington, IN, 47405
| | - Ashley E. DeYong
- Chemistry, Indiana University, 800 E Kirkwood Ave, Bloomington, IN, 47405
| | - John Florek
- Chemistry, Tufts University, 62 Talbot Ave, Medford, MA 02145
| | - Olivea Vasquez
- Chemistry, Tufts University, 62 Talbot Ave, Medford, MA 02145
| | - Nicola L. B. Pohl
- Chemistry, Indiana University, 800 E Kirkwood Ave, Bloomington, IN, 47405
| | - Clay S. Bennett
- Chemistry, Tufts University, 62 Talbot Ave, Medford, MA 02145
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16
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Abstract
Azetidinium salts are important motifs in organic synthesis but are difficult to obtain due to extremely long synthetic protocols. Herein, a rapid continuous-flow process for the on-demand synthesis of azetidinium salts is described. In particular, the nucleophilic addition of secondary amines and the subsequent intramolecular N-cyclization have been investigated in batch and continuous-flow modes, exploring the effects of solvent type, temperature, reaction time, and amine substituent on the synthesis of azetidinium salts. This has enabled us to quickly identify optimal reaction conditions and obtain microkinetic parameters, verifying that the use of a flow reactor leads to a reduction of the activation energy for the epichlorohydrin aminolysis due to the better control of mass and heat transfer during reaction. This confirms the key role of continuous-flow technologies to affect the kinetics of a reaction and make synthetic protocols ultrarapid and more efficient.
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Affiliation(s)
- Alessandra Sivo
- Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, IT-20133 Milano, Italy
| | - Vincenzo Ruta
- Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, IT-20133 Milano, Italy
| | - Gianvito Vilé
- Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, IT-20133 Milano, Italy
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17
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Sagandira CR, Akwi FM, Sagandira MB, Watts P. Multistep Continuous Flow Synthesis of Stavudine. J Org Chem 2021; 86:13934-13942. [PMID: 34060836 DOI: 10.1021/acs.joc.1c01013] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Herein, we demonstrate an elegant multistep continuous flow synthesis for stavudine (d4T), a potent nucleoside chemotherapeutic agent for human immunodeficiency virus, acquired immunodeficiency syndrome (AIDS) and AIDS-related conditions. This was accomplished via six chemical transformations in five sequential continuous flow reactors from an affordable starting material, 5-methyluridine. In the first instance, single step continuous flow synthesis was demonstrated with an average of 97% yield, 21.4 g/h throughput per step, and a total of 15.5 min residence time. Finally, multistep continuous flow synthesis of d4T in 87% total yield with a total residence time of 19.9 min and 117 mg/h throughput without intermediate purification was demonstrated.
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Affiliation(s)
| | - Faith M Akwi
- Nelson Mandela University, University Way, Port Elizabeth 6031, South Africa
| | - Mellisa B Sagandira
- Nelson Mandela University, University Way, Port Elizabeth 6031, South Africa
| | - Paul Watts
- Nelson Mandela University, University Way, Port Elizabeth 6031, South Africa
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18
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Yao H, Wan L, Zhao X, Guo Y, Zhou J, Bo X, Mao Y, Xin Z. Effective Phosphorylation of 2,2′-Methylene-bis(4,6-di- tert-butyl) Phenol in Continuous Flow Reactors. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hanlin Yao
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Li Wan
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xiaoyu Zhao
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yahui Guo
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jian Zhou
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xiaofan Bo
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yuxin Mao
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Zhong Xin
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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19
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Baumann M, Smyth M, Moody TS, Wharry S. Evaluating the Green Credentials of Flow Chemistry towards Industrial Applications. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1541-1761] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
AbstractContinuous flow chemistry is becoming an established technology platform that finds frequent application in industrial chemical manufacture with support and endorsements by the FDA for pharmaceuticals. Amongst the various advantages that are commonly cited for flow chemistry over batch processing, sustainability continues to require further advances and joint efforts by chemists and chemical engineers in both academia and industry. This short review highlights developments between 2015 and early 2021 that positively impact on the green credentials associated with flow chemistry, specifically when applied to the preparation of pharmaceuticals. An industrial perspective on current challenges is provided to whet discussion and stimulate further investment towards achieving greener modern synthetic technologies.1 Introduction2 Subject Areas and Relevant Case Studies3 Industrial Outlook on Future Sustainability Driven through Continuous Manufacturing Approaches4 Conclusions and Outlook
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Affiliation(s)
| | - Megan Smyth
- Department of Technology, Almac Sciences Ltd
| | - Thomas S. Moody
- Department of Technology, Almac Sciences Ltd
- Arran Chemical Company
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20
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Armstrong C, Miyai Y, Formosa A, Thomas D, Chen E, Hart T, Schultz V, Desai BK, Cai AY, Almasy A, Jensen K, Rogers L, Roper T. On-Demand Continuous Manufacturing of Ciprofloxacin in Portable Plug-and-Play Factories: Development of a Highly Efficient Synthesis for Ciprofloxacin. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00118] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Cameron Armstrong
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, Virginia 23284-2512, United States
| | - Yuma Miyai
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, Virginia 23284-2512, United States
| | - Anna Formosa
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, Virginia 23284-2512, United States
| | - Dale Thomas
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, United States
| | - Esther Chen
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, United States
| | - Travis Hart
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, United States
| | - Victor Schultz
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, United States
| | - Bimbisar K. Desai
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, Virginia 23284-2512, United States
| | - Angela Y. Cai
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, United States
| | - Alexandra Almasy
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, Virginia 23284-2512, United States
| | - Klavs Jensen
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, United States
| | - Luke Rogers
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, United States
- OnDemand Pharmaceuticals, 1550 E Gude Drive, Rockville, Maryland 20850, United States
| | - Tom Roper
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, Virginia 23284-2512, United States
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21
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Hu C. Reactor design and selection for effective continuous manufacturing of pharmaceuticals. J Flow Chem 2021; 11:243-263. [PMID: 34026279 PMCID: PMC8130218 DOI: 10.1007/s41981-021-00164-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 04/14/2021] [Indexed: 11/23/2022]
Abstract
Pharmaceutical production remains one of the last industries that predominantly uses batch processes, which are inefficient and can cause drug shortages due to the long lead times or quality defects. Consequently, pharmaceutical companies are transitioning away from outdated batch lines, in large part motivated by the many advantages of continuous manufacturing (e.g., low cost, quality assurance, shortened lead time). As chemical reactions are fundamental to any drug production process, the selection of reactor and its design are critical to enhanced performance such as improved selectivity and yield. In this article, relevant theories, and models, as well as their required input data are summarized to assist the reader in these tasks, focusing on continuous reactions. Selected examples that describe the application of plug flow reactors (PFRs) and continuous-stirred tank reactors (CSTRs)-in-series within the pharmaceutical industry are provided. Process analytical technologies (PATs), which are important tools that provide real-time in-line continuous monitoring of reactions, are recommended to be considered during the reactor design process (e.g., port design for the PAT probe). Finally, other important points, such as density change caused by thermal expansion or solid precipitation, clogging/fouling, and scaling-up, are discussed.
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Affiliation(s)
- Chuntian Hu
- CONTINUUS Pharmaceuticals, Woburn, MA 01801 USA
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22
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Sun M, Yang J, Fu Y, Liang C, Li H, Yan G, Yin C, Yu W, Ma Y, Cheng R, Ye J. Continuous Flow Process for the Synthesis of Betahistine via Aza-Michael-Type Reaction in Water. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.0c00543] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Maolin Sun
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006 China
| | - Jingxin Yang
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Youtian Fu
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Chaoming Liang
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006 China
| | - Hong Li
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Guoming Yan
- Shanghai Zhongxi Sunve Pharmaceutical Co., Ltd., No. 158 Minle Road, Fengxian District, Shanghai 201419, China
| | - Chao Yin
- Shanghai Zhongxi Sunve Pharmaceutical Co., Ltd., No. 158 Minle Road, Fengxian District, Shanghai 201419, China
| | - Wei Yu
- Shanghai Zhongxi Sunve Pharmaceutical Co., Ltd., No. 158 Minle Road, Fengxian District, Shanghai 201419, China
| | - Yueyue Ma
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Ruihua Cheng
- School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jinxing Ye
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006 China
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23
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Yu Z, Yao H, Xu Q, Liu J, Le X, Ren M. Brønsted acid-catalyzed chlorination of aromatic carboxylic acids. PHOSPHORUS SULFUR 2021. [DOI: 10.1080/10426507.2021.1903008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Zhiqun Yu
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Hongmiao Yao
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Qilin Xu
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Jiming Liu
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Xingmao Le
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Minna Ren
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China
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24
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Jiao J, Nie W, Yu T, Yang F, Zhang Q, Aihemaiti F, Yang T, Liu X, Wang J, Li P. Multi-Step Continuous-Flow Organic Synthesis: Opportunities and Challenges. Chemistry 2021; 27:4817-4838. [PMID: 33034923 DOI: 10.1002/chem.202004477] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Indexed: 12/11/2022]
Abstract
Continuous-flow multi-step synthesis takes the advantages of microchannel flow chemistry and may transform the conventional multi-step organic synthesis by using integrated synthetic systems. To realize the goal, however, innovative chemical methods and techniques are urgently required to meet the significant remaining challenges. In the past few years, by using green reactions, telescoped chemical design, and/or novel in-line separation techniques, major and rapid advancement has been made in this direction. This minireview summarizes the most recent reports (2017-2020) on continuous-flow synthesis of functional molecules. Notably, several complex active pharmaceutical ingredients (APIs) have been prepared by the continuous-flow approach. Key technologies to the successes and remaining challenges are discussed. These results exemplified the feasibility of using modern continuous-flow chemistry for complex synthetic targets, and bode well for the future development of integrated, automated artificial synthetic systems.
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Affiliation(s)
- Jiao Jiao
- School of Chemistry, Xi'an Jiaotong University, Xi'an, 710061, P. R. China.,Xian Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Wenzheng Nie
- School of Chemistry, Xi'an Jiaotong University, Xi'an, 710061, P. R. China.,Xian Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Tao Yu
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Fan Yang
- Department of Applied Chemistry, Xi'an University of Technology, Xi'an, 710048, P. R. China
| | - Qian Zhang
- Department of Applied Chemistry, Xi'an University of Technology, Xi'an, 710048, P. R. China
| | - Feierdaiweisi Aihemaiti
- School of Chemistry, Xi'an Jiaotong University, Xi'an, 710061, P. R. China.,Xian Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Tingjun Yang
- School of Chemistry, Xi'an Jiaotong University, Xi'an, 710061, P. R. China.,Xian Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Xuanyu Liu
- School of Medicine, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Jiachen Wang
- School of Medicine, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Pengfei Li
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.,Xian Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
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25
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McDonald MA, Salami H, Harris PR, Lagerman CE, Yang X, Bommarius AS, Grover MA, Rousseau RW. Reactive crystallization: a review. REACT CHEM ENG 2021. [DOI: 10.1039/d0re00272k] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Reactive crystallization is not new, but there has been recent growth in its use as a means of improving performance and sustainability of industrial processes.
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Affiliation(s)
- Matthew A. McDonald
- School of Chemical and Biomolecular Engineering
- Georgia Institute of Technology
- Atlanta
- USA
| | - Hossein Salami
- School of Chemical and Biomolecular Engineering
- Georgia Institute of Technology
- Atlanta
- USA
| | - Patrick R. Harris
- School of Chemical and Biomolecular Engineering
- Georgia Institute of Technology
- Atlanta
- USA
| | - Colton E. Lagerman
- School of Chemical and Biomolecular Engineering
- Georgia Institute of Technology
- Atlanta
- USA
| | - Xiaochuan Yang
- Office of Pharmaceutical Quality
- Center for Drug Evaluation and Research
- U.S. Food and Drug Administration
- Silver Spring
- USA
| | - Andreas S. Bommarius
- School of Chemical and Biomolecular Engineering
- Georgia Institute of Technology
- Atlanta
- USA
| | - Martha A. Grover
- School of Chemical and Biomolecular Engineering
- Georgia Institute of Technology
- Atlanta
- USA
| | - Ronald W. Rousseau
- School of Chemical and Biomolecular Engineering
- Georgia Institute of Technology
- Atlanta
- USA
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26
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Sun M, Li J, Liang C, Shan C, Shen X, Cheng R, Ma Y, Ye J. Practical and rapid construction of 2-pyridyl ketone library in continuous flow. J Flow Chem 2020. [DOI: 10.1007/s41981-020-00120-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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27
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Ötvös SB, Llanes P, Pericàs MA, Kappe CO. Telescoped Continuous Flow Synthesis of Optically Active γ-Nitrobutyric Acids as Key Intermediates of Baclofen, Phenibut, and Fluorophenibut. Org Lett 2020; 22:8122-8126. [PMID: 33026815 PMCID: PMC7573919 DOI: 10.1021/acs.orglett.0c03100] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Indexed: 02/07/2023]
Abstract
The two-step flow asymmetric synthesis of chiral γ-nitrobutyric acids as key intermediates of the GABA analogues baclofen, phenibut, and fluorophenibut is reported on a multigram scale. The telescoped process comprises an enantioselective Michael-type addition facilitated by a polystyrene-supported heterogeneous organocatalyst under neat conditions followed by in situ-generated performic acid-mediated aldehyde oxidation. Simple access to valuable optically active substances is provided with key advances in terms of productivity and sustainability compared to those of previous batch approaches.
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Affiliation(s)
- Sándor B. Ötvös
- Institute
of Chemistry, University of Graz, NAWI Graz, Heinrichstrasse 28, A-8010 Graz, Austria
- Center
for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), Inffeldgasse 13, A-8010 Graz, Austria
| | - Patricia Llanes
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, E-43007 Tarragona, Spain
| | - Miquel A. Pericàs
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, E-43007 Tarragona, Spain
- Departament
de Química Inorgànica i Orgànica, Universitat de Barcelona (UB), E-08028 Barcelona, Spain
| | - C. Oliver Kappe
- Institute
of Chemistry, University of Graz, NAWI Graz, Heinrichstrasse 28, A-8010 Graz, Austria
- Center
for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), Inffeldgasse 13, A-8010 Graz, Austria
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28
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Antoniv M, Chang S, Al‐Jabri N, Zhu SS. Surfactant‐free synthesis of poly (styrene‐
co
‐acrylamide) monodisperse nanoparticles using hybrid flow‐to‐batch chemistry. J Appl Polym Sci 2020. [DOI: 10.1002/app.49905] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Marta Antoniv
- Aramco Services Company: Aramco Research Center–Boston Cambridge Massachusetts USA
| | - Sehoon Chang
- Aramco Services Company: Aramco Research Center–Boston Cambridge Massachusetts USA
| | | | - S. Sherry Zhu
- Aramco Services Company: Aramco Research Center–Boston Cambridge Massachusetts USA
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29
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Spano MB, Tran BH, Majumdar S, Weiss GA. 3D-Printed Labware for High-Throughput Immobilization of Enzymes. J Org Chem 2020; 85:8480-8488. [PMID: 32502347 PMCID: PMC9096805 DOI: 10.1021/acs.joc.0c00789] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In continuous flow biocatalysis, chemical transformations can occur under milder, greener, more scalable, and safer conditions than conventional organic synthesis. However, the method typically involves extensive screening to optimize each enzyme's immobilization on its solid support material. The task of weighing solids for large numbers of experiments poses a bottleneck for screening enzyme immobilization conditions. For example, screening conditions often require multiple replicates exploring different support chemistries, buffer compositions, and temperatures. Thus, we report 3D-printed labware designed to measure and handle solids in multichannel format and expedite screening of enzyme immobilization conditions. To demonstrate the generality of these advances, alkaline phosphatase, glucose dehydrogenase, and laccase were screened for immobilization efficiency on seven resins. The results illustrate the requirements for optimization of each enzyme's loading and resin choice for optimal catalytic performance. Here, 3D-printed labware can decrease the requirements for an experimentalist's time by >95%. The approach to rapid optimization of enzyme immobilization is applicable to any enzyme and many solid support resins. Furthermore, the reported devices deliver precise and accurate aliquots of essentially any granular solid material.
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Affiliation(s)
- Michael B. Spano
- Department of Chemistry, University of California, Irvine, California, 92697-2025, United States of America
| | - Brandan H. Tran
- Department of Chemistry, University of California, Irvine, California, 92697-2025, United States of America
| | - Sudipta Majumdar
- Department of Chemistry, University of California, Irvine, California, 92697-2025, United States of America
| | - Gregory A. Weiss
- Department of Chemistry, University of California, Irvine, California, 92697-2025, United States of America
- Department of Molecular Biology and Biochemistry, University of California, Irvine, California, 92697-3900, United States of America
- Department of Pharmaceutical Sciences, University of California, Irvine, California, 92697-3958, United States of America
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30
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Rogers L, Briggs N, Achermann R, Adamo A, Azad M, Brancazio D, Capellades G, Hammersmith G, Hart T, Imbrogno J, Kelly LP, Liang G, Neurohr C, Rapp K, Russell MG, Salz C, Thomas DA, Weimann L, Jamison TF, Myerson AS, Jensen KF. Continuous Production of Five Active Pharmaceutical Ingredients in Flexible Plug-and-Play Modules: A Demonstration Campaign. Org Process Res Dev 2020. [DOI: 10.1021/acs.oprd.0c00208] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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31
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Fu WC, Jamison TF. Deuteriodifluoromethylation and
gem
‐Difluoroalkenylation of Aldehydes Using ClCF
2
H in Continuous Flow. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004260] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Wai Chung Fu
- Department of Chemistry Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Timothy F. Jamison
- Department of Chemistry Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
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32
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Fu WC, Jamison TF. Deuteriodifluoromethylation and
gem
‐Difluoroalkenylation of Aldehydes Using ClCF
2
H in Continuous Flow. Angew Chem Int Ed Engl 2020; 59:13885-13890. [DOI: 10.1002/anie.202004260] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/13/2020] [Indexed: 01/08/2023]
Affiliation(s)
- Wai Chung Fu
- Department of Chemistry Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Timothy F. Jamison
- Department of Chemistry Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
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33
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Dynamic Optimization of a Fed-Batch Nosiheptide Reactor. Processes (Basel) 2020. [DOI: 10.3390/pr8050587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Nosiheptide is a sulfur-containing peptide antibiotic, showing exceptional activity against critical pathogens such as methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococci (VRE) with livestock applications that can be synthesized via fed-batch fermentation. A simplified mechanistic fed-batch fermentation model for nosiheptide production considers temperature- and pH-dependence of biomass growth, substrate consumption, nosiheptide production and oxygen mass transfer into the broth. Herein, we perform dynamic simulation over a broad range of possible feeding policies to understand and visualize the region of attainable reactor performances. We then formulate a dynamic optimization problem for maximization of nosiheptide production for different constraints of batch duration and operability limits. A direct method for dynamic optimization (simultaneous strategy) is performed in each case to compute the optimal control trajectories. Orthogonal polynomials on finite elements are used to approximate the control and state trajectories allowing the continuous problem to be converted to a nonlinear program (NLP). The resultant large-scale NLP is solved using IPOPT. Optimal operation requires feedrate to be manipulated in such a way that the inhibitory mechanism of the substrate can be avoided, with significant nosiheptide yield improvement realized.
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34
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Mao M, Zhang L, Yao H, Wan L, Xin Z. Development and Scale-up of the Rapid Synthesis of Triphenyl Phosphites in Continuous Flow. ACS OMEGA 2020; 5:9503-9509. [PMID: 32363302 PMCID: PMC7191834 DOI: 10.1021/acsomega.0c00716] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 04/09/2020] [Indexed: 06/11/2023]
Abstract
A novel method for the synthesis of triphenyl phosphite and its derivatives has been developed in continuous flow. With a total residence time of 20 s, the target product was prepared in a microreactor, and the reaction time was significantly shortened compared with standard single batch reaction conditions. In addition, the reaction of various substrates gave the corresponding products in good to excellent yields under optimized conditions. The reactants could be employed in a stoichiometric ratio, making the reaction more efficient, economical, and environmentally friendly. In addition, scale-up apparatus was designed and assembled, and the kilogram-scale production (up to 18.4 kg/h) of tris(2,4-di-tert-butylphenyl) phosphite was achieved in 88% yield.
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Affiliation(s)
- Mengmei Mao
- Shanghai Key Laboratory
of Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Le Zhang
- Shanghai Key Laboratory
of Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hanlin Yao
- Shanghai Key Laboratory
of Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Li Wan
- Shanghai Key Laboratory
of Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zhong Xin
- Shanghai Key Laboratory
of Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
- State-Key Laboratory of Chemical Engineering,
School of Chemical Engineering, East China
University of Science and Technology, Shanghai 200237, China
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35
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Flow Chemistry in Contemporary Chemical Sciences: A Real Variety of Its Applications. Molecules 2020; 25:molecules25061434. [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] [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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Yu Z, Xu Q, Liu L, Wu Z, Huang J, Lin J, Su W. Dinitration of o-toluic acid in continuous-flow: process optimization and kinetic study. J Flow Chem 2020. [DOI: 10.1007/s41981-020-00078-6] [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]
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37
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Fülöp Z, Szemesi P, Bana P, Éles J, Greiner I. Evolution of flow-oriented design strategies in the continuous preparation of pharmaceuticals. REACT CHEM ENG 2020. [DOI: 10.1039/d0re00273a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This review focuses on the flow-oriented design (FOD) in the multi-step continuous-flow synthesis of active pharmaceutical ingredients.
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Affiliation(s)
- Zsolt Fülöp
- Department of Organic Chemistry and Technology
- Budapest University of Technology and Economics
- 1521 Budapest
- Hungary
| | - Péter Szemesi
- Department of Organic Chemistry and Technology
- Budapest University of Technology and Economics
- 1521 Budapest
- Hungary
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38
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Bloemendal VRLJ, Janssen MACH, van Hest JCM, Rutjes FPJT. Continuous one-flow multi-step synthesis of active pharmaceutical ingredients. REACT CHEM ENG 2020. [DOI: 10.1039/d0re00087f] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This review highlights a selection of multistep continuous flow (one-flow) processes leading to the synthesis of active pharmaceutical ingredients (APIs).
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Affiliation(s)
| | | | - Jan C. M. van Hest
- Bio-organic chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
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39
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Damião MCFCB, Marçon HM, Pastre JC. Continuous flow synthesis of the URAT1 inhibitor lesinurad. REACT CHEM ENG 2020. [DOI: 10.1039/c9re00483a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A 5-steps continuous flow synthesis of lesinurad is provided and delivers this API in 68% overall yield.
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40
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Alwakwak AA, He Y, Almuslem A, Senter M, Itta AK, Rezaei F, Rownaghi AA. Metal- and solvent-free synthesis of aminoalcohols under continuous flow conditions. REACT CHEM ENG 2020. [DOI: 10.1039/c9re00396g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Multifunctional organocatalysts were immobilized on porous hollow fiber polymer and used as intelligent and cooperative heterogeneous catalysts and continuous flow reactor for sustainable chemical transformation.
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Affiliation(s)
- Abdo-Alslam Alwakwak
- Department of Chemical & Biochemical Engineering
- Missouri University of Science and Technology
- Rolla
- USA
| | - Yingxin He
- Department of Chemical & Biochemical Engineering
- Missouri University of Science and Technology
- Rolla
- USA
| | - Ahmed Almuslem
- Department of Chemical & Biochemical Engineering
- Missouri University of Science and Technology
- Rolla
- USA
| | - Matthew Senter
- Department of Chemical & Biochemical Engineering
- Missouri University of Science and Technology
- Rolla
- USA
| | - Arun K. Itta
- School of Chemical & Biomolecular Engineering
- Georgia Institute of Technology
- Atlanta
- USA
| | - Fateme Rezaei
- Department of Chemical & Biochemical Engineering
- Missouri University of Science and Technology
- Rolla
- USA
| | - Ali A. Rownaghi
- Department of Chemical & Biochemical Engineering
- Missouri University of Science and Technology
- Rolla
- USA
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41
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Ötvös SB, Pericàs MA, Kappe CO. Multigram-scale flow synthesis of the chiral key intermediate of (-)-paroxetine enabled by solvent-free heterogeneous organocatalysis. Chem Sci 2019; 10:11141-11146. [PMID: 32206263 PMCID: PMC7069365 DOI: 10.1039/c9sc04752b] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 10/18/2019] [Indexed: 12/16/2022] Open
Abstract
The catalytic enantioselective synthesis of the chiral key intermediate of the antidepressant (-)-paroxetine is demonstrated as a continuous flow process on multi-gram scale. The critical step is a solvent-free organocatalytic conjugate addition followed by a telescoped reductive amination-lactamization-amide/ester reduction sequence. Due to the efficient heterogeneous catalysts and the solvent-free or highly concentrated conditions applied, the flow method offers key advances in terms of productivity and sustainability compared to earlier batch approaches.
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Affiliation(s)
- Sándor B Ötvös
- Institute of Chemistry , University of Graz , NAWI Graz , Heinrichstrasse 28 , A-8010 Graz , Austria .
| | - Miquel A Pericàs
- Institute of Chemical Research of Catalonia (ICIQ) , The Barcelona Institute of Science and Technology (BIST) , Av. Països Catalans 16 , E-43007 Tarragona , Spain
- Departament de Química Inorgànica i Orgànica , Universitat de Barcelona (UB) , E-08028 Barcelona , Spain
| | - C Oliver Kappe
- Institute of Chemistry , University of Graz , NAWI Graz , Heinrichstrasse 28 , A-8010 Graz , Austria .
- Center for Continuous Synthesis and Processing (CCFLOW) , Research Center Pharmaceutical Engineering (RCPE) , Inffeldgasse 13 , A-8010 Graz , Austria .
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42
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Ishitani H, Kanai K, Yoo W, Yoshida T, Kobayashi S. A Nickel‐Diamine/Mesoporous Silica Composite as a Heterogeneous Chiral Catalyst for Asymmetric 1,4‐Addition Reactions. Angew Chem Int Ed Engl 2019; 58:13313-13317. [DOI: 10.1002/anie.201906349] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 07/14/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Haruro Ishitani
- Green & Sustainable Chemistry Cooperation LaboratoryGraduate School of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Kan Kanai
- Department of ChemistrySchool of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Woo‐Jin Yoo
- Green & Sustainable Chemistry Cooperation LaboratoryGraduate School of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Tomoko Yoshida
- Advanced Research Institute for Natural Science and TechnologyOsaka City University 3-3-138 Sugimoto, Sumiyoshi-ku Osaka 558-8585 Japan
| | - Shū Kobayashi
- Department of ChemistrySchool of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- Green & Sustainable Chemistry Cooperation LaboratoryGraduate School of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
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43
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Ishitani H, Kanai K, Yoo W, Yoshida T, Kobayashi S. A Nickel‐Diamine/Mesoporous Silica Composite as a Heterogeneous Chiral Catalyst for Asymmetric 1,4‐Addition Reactions. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906349] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Haruro Ishitani
- Green & Sustainable Chemistry Cooperation LaboratoryGraduate School of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Kan Kanai
- Department of ChemistrySchool of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Woo‐Jin Yoo
- Green & Sustainable Chemistry Cooperation LaboratoryGraduate School of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Tomoko Yoshida
- Advanced Research Institute for Natural Science and TechnologyOsaka City University 3-3-138 Sugimoto, Sumiyoshi-ku Osaka 558-8585 Japan
| | - Shū Kobayashi
- Department of ChemistrySchool of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- Green & Sustainable Chemistry Cooperation LaboratoryGraduate School of ScienceThe University of Tokyo Hongo, Bunkyo-ku Tokyo 113-0033 Japan
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Huang J, Geng Y, Wang Y, Xu J. Efficient Production of Cyclopropylamine by a Continuous-Flow Microreaction System. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02438] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jinpei Huang
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yuhao Geng
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yundong Wang
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Jianhong Xu
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
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Abstract
A modular continuous flow synthesis of imatinib and analogues is reported. Structurally diverse imatinib analogues are rapidly generated using three readily available building blocks via a flow hydration/chemoselective C-N coupling sequence. The newly developed continuous flow hydration and amidation modules each exhibit a broad scope with good to excellent yields. Overall, the method described does not require solvent switches, in-line purifications, or packed-bed apparatuses due to the judicious manipulation of flow setups and solvent mixtures.
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Affiliation(s)
- Wai Chung Fu
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , Massachusetts 02139 , United States
| | - Timothy F Jamison
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , Massachusetts 02139 , United States
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46
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Russell MG, Jamison TF. Seven‐Step Continuous Flow Synthesis of Linezolid Without Intermediate Purification. Angew Chem Int Ed Engl 2019; 58:7678-7681. [DOI: 10.1002/anie.201901814] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/29/2019] [Indexed: 11/08/2022]
Affiliation(s)
- M. Grace Russell
- Department of ChemistryMassachusetts Institute of Technology 77 Massachusetts Ave. Cambridge MA 02139 USA
| | - Timothy F. Jamison
- Department of ChemistryMassachusetts Institute of Technology 77 Massachusetts Ave. Cambridge MA 02139 USA
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47
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Li G, Zhou S, Shi Z, Meng X, Li L, Liu B. Electrochemical degradation of ciprofloxacin on BDD anode using a differential column batch reactor: mechanisms, kinetics and pathways. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:17740-17750. [PMID: 31030395 DOI: 10.1007/s11356-019-04900-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 03/18/2019] [Indexed: 06/09/2023]
Abstract
A growing number of electrochemical oxidation system was employed for the degradation of refractory contaminants. In this study, a boron-doped diamond (BDD) anode/Ti cathode equipped in the differential column batch reactor (DCBR) was utilized for electrochemical oxidation of ciprofloxacin (CIP). The feed solution within the DCBR system was confirmed as a uniform flow state through a computational fluid dynamics (CFD) simulation analysis. The results showed that the BDD anode/Ti cathode electrochemical system was with a high efficiency oxidation performance when treating the CIP contaminant. The CIP was completely degraded within 20 min, and over 50% DOC removed after 120 min. Therefore, two-stage electrochemical oxidation mechanism was proposed. Four major factors, the initial concentration, current density, pH, and electrolyte concentration, on the CIP degradation efficiency were systematically investigated. The CIP degradation curve followed pseudo first-order degradation kinetics. The electric efficiency per order (EE/O) of the electrochemical oxidation system was calculated to determine an optimal operation condition. Moreover, the oxidation intermediates were identified with a mass spectrometry (LC/MS/MS) and the degradation pathways were proposed in this study. The destruction of quinolone moiety and piperazine ring and fluorine substitution were the three possible degradation pathways during BDD anode oxidation process.
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Affiliation(s)
- Guangchao Li
- Department of Water Engineering and Science, College of Civil Engineering, Changsha, 410082, China
| | - Shiqing Zhou
- Department of Water Engineering and Science, College of Civil Engineering, Changsha, 410082, China
| | - Zhou Shi
- Department of Water Engineering and Science, College of Civil Engineering, Changsha, 410082, China.
| | - Xiaoyang Meng
- Brook Byers Institute of Sustainable Systems, School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Ling Li
- Department of Water Engineering and Science, College of Civil Engineering, Changsha, 410082, China
| | - Bin Liu
- Department of Water Engineering and Science, College of Civil Engineering, Changsha, 410082, China.
- Department of Chemical Engineering, Process Engineering for Sustainable Systems (ProcESS), KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium.
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48
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Dynamic Modelling and Optimisation of the Batch Enzymatic Synthesis of Amoxicillin. Processes (Basel) 2019. [DOI: 10.3390/pr7060318] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Amoxicillin belongs to the β-lactam family of antibiotics, a class of highly consumed pharmaceutical products used for the treatment of respiratory and urinary tract infections, and is listed as a World Health Organisation (WHO) “Essential Medicine”. The demonstrated batch enzymatic synthesis of amoxicillin is composed of a desired synthesis and two undesired hydrolysis reactions of the main substrate (6-aminopenicillanic acid (6-APA)) and amoxicillin. Dynamic simulation and optimisation can be used to establish optimal control policies to attain target product specification objectives for bioprocesses. This work performed dynamic modelling, simulation and optimisation of the batch enzymatic synthesis of amoxicillin. First, kinetic parameter regression at different operating temperatures was performed, followed by Arrhenius parameter estimation to allow for non-isothermal modelling of the reaction network. Dynamic simulations were implemented to understand the behaviour of the design space, followed by the formulation and solution of a dynamic non-isothermal optimisation problem subject to various product specification constraints. Optimal reactor temperature (control) and species concentration (state) trajectories are presented for batch enzymatic amoxicillin synthesis.
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49
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Seven‐Step Continuous Flow Synthesis of Linezolid Without Intermediate Purification. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901814] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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50
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Tosso NP, Desai BK, De Oliveira E, Wen J, Tomlin J, Gupton BF. A Consolidated and Continuous Synthesis of Ciprofloxacin from a Vinylogous Cyclopropyl Amide. J Org Chem 2019; 84:3370-3376. [PMID: 30786209 DOI: 10.1021/acs.joc.8b03222] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Ciprofloxacin is a broad-spectrum antibiotic that is recognized as one of the World Health Organization's Essential Medicines. It is particularly effective in the treatment of Gram-negative bacterial infections associated with urinary, respiratory, and gastrointestinal tract infections. A streamlined and high yielding continuous synthesis of ciprofloxacin has been developed, which employs a chemoselective C-acylation step that precludes the need for intermediate isolations, extractions, or purifications. The end-to-end process has a residence time of 4.7 min with a 15.8 g/h throughput at laboratory scale and an overall isolated yield of 83%.
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Affiliation(s)
- N Perrer Tosso
- Department of Chemistry and Department of Chemical and Life Science Engineering , Virginia Commonwealth University , 601 West Main Street , Richmond , Virginia 23220 , United States
| | - Bimbisar K Desai
- Department of Chemistry and Department of Chemical and Life Science Engineering , Virginia Commonwealth University , 601 West Main Street , Richmond , Virginia 23220 , United States
| | - Eliseu De Oliveira
- Department of Chemistry and Department of Chemical and Life Science Engineering , Virginia Commonwealth University , 601 West Main Street , Richmond , Virginia 23220 , United States
| | - Juekun Wen
- Department of Chemistry and Department of Chemical and Life Science Engineering , Virginia Commonwealth University , 601 West Main Street , Richmond , Virginia 23220 , United States
| | - John Tomlin
- Department of Chemistry and Department of Chemical and Life Science Engineering , Virginia Commonwealth University , 601 West Main Street , Richmond , Virginia 23220 , United States
| | - B Frank Gupton
- Department of Chemistry and Department of Chemical and Life Science Engineering , Virginia Commonwealth University , 601 West Main Street , Richmond , Virginia 23220 , United States
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