51
|
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%.
Collapse
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
| |
Collapse
|
52
|
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
| |
Collapse
|
53
|
Jaman Z, Sobreira TJP, Mufti A, Ferreira CR, Cooks RG, Thompson DH. Rapid On-Demand Synthesis of Lomustine under Continuous Flow Conditions. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.8b00387] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Zinia Jaman
- Department of Chemistry, Purdue University, Bindley Bioscience Center, 1203 West State Street, West Lafayette, Indiana 47907, United States
| | - Tiago J. P. Sobreira
- Department of Chemistry, Purdue University, Bindley Bioscience Center, 1203 West State Street, West Lafayette, Indiana 47907, United States
| | - Ahmed Mufti
- School of Chemical Engineering, Purdue University, 480 West Stadium Avenue, West Lafayette, Indiana 47907, United States
| | - Christina R. Ferreira
- Department of Chemistry, Purdue University, Bindley Bioscience Center, 1203 West State Street, West Lafayette, Indiana 47907, United States
| | - R. Graham Cooks
- Department of Chemistry, Purdue University, Bindley Bioscience Center, 1203 West State Street, West Lafayette, Indiana 47907, United States
| | - David H. Thompson
- Department of Chemistry, Purdue University, Bindley Bioscience Center, 1203 West State Street, West Lafayette, Indiana 47907, United States
| |
Collapse
|
54
|
Rao X, Ishitani H, Yoo W, Kobayashi S. Zirconium‐β Zeolite‐Catalyzed Continuous‐Flow Friedel‐Crafts Acylation Reaction. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900012] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Xiaofeng Rao
- Department of Chemistry, School of Science The University of Tokyo Hongo, Bunkyo-ku, Tokyo 113-0033 Japan
| | - Haruro Ishitani
- Green & Sustainable Chemistry Cooperation Laboratory, Graduate School of Science The University of Tokyo Hongo, Bunkyo-ku, Tokyo 113-0033 Japan
| | - Woo‐Jin Yoo
- Green & Sustainable Chemistry Cooperation Laboratory, Graduate School of Science The University of Tokyo Hongo, Bunkyo-ku, Tokyo 113-0033 Japan
| | - Shū Kobayashi
- Department of Chemistry, School of Science The University of Tokyo Hongo, Bunkyo-ku, Tokyo 113-0033 Japan
- Green & Sustainable Chemistry Cooperation Laboratory, Graduate School of Science The University of Tokyo Hongo, Bunkyo-ku, Tokyo 113-0033 Japan
| |
Collapse
|
55
|
Riley DL, Strydom I, Chikwamba R, Panayides JL. Landscape and opportunities for active pharmaceutical ingredient manufacturing in developing African economies. REACT CHEM ENG 2019. [DOI: 10.1039/c8re00236c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review will highlight the opportunities that exist in the localization of cutting-edge manufacturing technologies within an African context.
Collapse
Affiliation(s)
- Darren L. Riley
- Department of Chemistry
- Faculty of Natural and Agricultural Sciences
- University of Pretoria, Pretoria
- South Africa
| | - Ian Strydom
- Department of Chemistry
- Faculty of Natural and Agricultural Sciences
- University of Pretoria, Pretoria
- South Africa
| | | | | |
Collapse
|
56
|
Bana P, Szigetvári Á, Kóti J, Éles J, Greiner I. Flow-oriented synthetic design in the continuous preparation of the aryl piperazine drug flibanserin. REACT CHEM ENG 2019. [DOI: 10.1039/c8re00266e] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The first integrated continuous-flow synthesis of the drug substance flibanserin was developed, using an uninterrupted four-step sequence, via an unprecedented route.
Collapse
|
57
|
Gupton JT, Crawford E, Mahoney M, Clark E, Curry W, Lane A, Shimozono A, Moore-Stoll V, Elofson K, Juekun W, Newton M, Yeudall S, Jaekle E, Kanters R, Sikorski JA. Application of vinylogous carbamates and vinylogous aminonitriles to the regiospecific synthesis of uniquely functionalized pyrroles and quinolones. Tetrahedron 2018; 74:7408-7420. [PMID: 31289413 PMCID: PMC6615762 DOI: 10.1016/j.tet.2018.10.078] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Pyrroles and quinolones represent core structures, which are routinely found in both natural and synthetic bioactive substances. Consequently, the development of efficient and regiospecific methods for the preparation of such heterocycles with unique functionality is of some importance. We describe herein the regiospecific synthesis of 1,2,3,4-tetrasubstituted pyrroles containing polar substituents and such products are prepared from vinylogous carbamates and vinylogous aminonitriles. We also describe the regiospecific synthesis of 3-aryl containing 1,3,6trisubstituted quinolones from vinylogous carbamates. The use of an amine exchange reaction to prepare precursors for the pyrrole and quinolone forming cyclizations represents a key factor in the strategy.
Collapse
Affiliation(s)
- John T. Gupton
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Evan Crawford
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Matt Mahoney
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Evan Clark
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Will Curry
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Annie Lane
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Alex Shimozono
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | | | - Kristen Elofson
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Wen Juekun
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Micah Newton
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Scott Yeudall
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Elizabeth Jaekle
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Rene Kanters
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | | |
Collapse
|
58
|
|
59
|
McWilliams JC, Allian AD, Opalka SM, May SA, Journet M, Braden TM. The Evolving State of Continuous Processing in Pharmaceutical API Manufacturing: A Survey of Pharmaceutical Companies and Contract Manufacturing Organizations. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.8b00160] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- J. Christopher McWilliams
- Chemical Research and Development, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Ayman D. Allian
- Department of Pivotal Drug Substance Technologies, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Suzanne M. Opalka
- Chemical Process Development, Biogen Idec, 115 Broadway, Cambridge, Massachusetts 02142, United States
| | - Scott A. May
- Small Molecule Design and Development, Eli Lilly and Company, Indianapolis, Indiana 46285, United States
| | - Michel Journet
- API Chemistry, GSK, 709 Swedeland Road, UW2810, P.O. Box 1539, King of Prussia, Pennsylvania 19406, United States
| | - Timothy M. Braden
- Small Molecule Design and Development, Eli Lilly and Company, Indianapolis, Indiana 46285, United States
| |
Collapse
|
60
|
Accelerated microfluidic native chemical ligation at difficult amino acids toward cyclic peptides. Nat Commun 2018; 9:2847. [PMID: 30030439 PMCID: PMC6054628 DOI: 10.1038/s41467-018-05264-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 06/21/2018] [Indexed: 01/09/2023] Open
Abstract
Cyclic peptide-based therapeutics have a promising growth forecast that justifies the development of microfluidic systems dedicated to their production, in phase with the actual transitioning toward continuous flow and microfluidic technologies for pharmaceutical production. The application of the most popular method for peptide cyclization in water, i.e., native chemical ligation, under microfluidic conditions is still unexplored. Herein, we report a general strategy for fast and efficient peptide cyclization using native chemical ligation under homogeneous microfluidic conditions. The strategy relies on a multistep sequence that concatenates the formation of highly reactive S-(2-((2-sulfanylethyl)amino)ethyl) peptidyl thioesters from stable peptide amide precursors with an intramolecular ligation step. With very fast ligation rates (<5 min), even for the most difficult junctions (including threonine, valine, isoleucine, or proline), this technology opens the door toward the scale-independent, expedient preparation of bioactive macrocyclic peptides. Flow-based peptide synthesis is a well-established method, yet difficult to combine with native chemical ligation (NCL), the go-to method for peptide cyclization. Here, the authors developed a microfluidic procedure for peptide cyclization within minutes, using NCL and an SEA alkylthioester peptide.
Collapse
|
61
|
Gérardy R, Emmanuel N, Toupy T, Kassin VE, Tshibalonza NN, Schmitz M, Monbaliu JCM. Continuous Flow Organic Chemistry: Successes and Pitfalls at the Interface with Current Societal Challenges. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800149] [Citation(s) in RCA: 144] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Romaric Gérardy
- Center for Integrated Technology and Organic Synthesis; Department of Chemistry; Research Unit MolSys; University of Liège; Quartier Agora, Allée du six Aout, 13 4000 Liège (Sart Tilman) Belgium
| | - Noémie Emmanuel
- Center for Integrated Technology and Organic Synthesis; Department of Chemistry; Research Unit MolSys; University of Liège; Quartier Agora, Allée du six Aout, 13 4000 Liège (Sart Tilman) Belgium
| | - Thomas Toupy
- Center for Integrated Technology and Organic Synthesis; Department of Chemistry; Research Unit MolSys; University of Liège; Quartier Agora, Allée du six Aout, 13 4000 Liège (Sart Tilman) Belgium
| | - Victor-Emmanuel Kassin
- Center for Integrated Technology and Organic Synthesis; Department of Chemistry; Research Unit MolSys; University of Liège; Quartier Agora, Allée du six Aout, 13 4000 Liège (Sart Tilman) Belgium
| | - Nelly Ntumba Tshibalonza
- Center for Integrated Technology and Organic Synthesis; Department of Chemistry; Research Unit MolSys; University of Liège; Quartier Agora, Allée du six Aout, 13 4000 Liège (Sart Tilman) Belgium
| | - Michaël Schmitz
- Center for Integrated Technology and Organic Synthesis; Department of Chemistry; Research Unit MolSys; University of Liège; Quartier Agora, Allée du six Aout, 13 4000 Liège (Sart Tilman) Belgium
| | - Jean-Christophe M. Monbaliu
- Center for Integrated Technology and Organic Synthesis; Department of Chemistry; Research Unit MolSys; University of Liège; Quartier Agora, Allée du six Aout, 13 4000 Liège (Sart Tilman) Belgium
| |
Collapse
|
62
|
Trobe M, Burke MD. The Molecular Industrial Revolution: Automated Synthesis of Small Molecules. Angew Chem Int Ed Engl 2018; 57:4192-4214. [PMID: 29513400 PMCID: PMC5912692 DOI: 10.1002/anie.201710482] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 12/05/2017] [Indexed: 11/10/2022]
Abstract
Today we are poised for a transition from the highly customized crafting of specific molecular targets by hand to the increasingly general and automated assembly of different types of molecules with the push of a button. Creating machines that are capable of making many different types of small molecules on demand, akin to that which has been achieved on the macroscale with 3D printers, is challenging. Yet important progress is being made toward this objective with two complementary approaches: 1) Automation of customized synthesis routes to different targets by machines that enable the use of many reactions and starting materials, and 2) automation of generalized platforms that make many different targets using common coupling chemistry and building blocks. Continued progress in these directions has the potential to shift the bottleneck in molecular innovation from synthesis to imagination, and thereby help drive a new industrial revolution on the molecular scale.
Collapse
Affiliation(s)
- Melanie Trobe
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Martin D. Burke
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA and Carle-Illinois College of Medicine, University of Illinois at Urbana-Champaign, Champaign, IL 61820, USA
| |
Collapse
|
63
|
Organic synthesis provides opportunities to transform drug discovery. Nat Chem 2018; 10:383-394. [DOI: 10.1038/s41557-018-0021-z] [Citation(s) in RCA: 650] [Impact Index Per Article: 108.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 12/25/2017] [Indexed: 11/09/2022]
|
64
|
Trobe M, Burke MD. Die molekulare industrielle Revolution: zur automatisierten Synthese organischer Verbindungen. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201710482] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Melanie Trobe
- Department of Chemistry University of Illinois Urbana-Champaign 600 S. Mathews, 454 RAL Urbana-Champaign IL 61801 USA
| | - Martin D. Burke
- Department of Chemistry University of Illinois Urbana-Champaign 600 S. Mathews, 454 RAL Urbana-Champaign IL 61801 USA
| |
Collapse
|
65
|
Zhang P, Weeranoppanant N, Thomas DA, Tahara K, Stelzer T, Russell MG, O'Mahony M, Myerson AS, Lin H, Kelly LP, Jensen KF, Jamison TF, Dai C, Cui Y, Briggs N, Beingessner RL, Adamo A. Advanced Continuous Flow Platform for On-Demand Pharmaceutical Manufacturing. Chemistry 2018; 24:2776-2784. [PMID: 29385292 DOI: 10.1002/chem.201706004] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Indexed: 12/14/2022]
Abstract
As a demonstration of an alternative to the challenges faced with batch pharmaceutical manufacturing including the large production footprint and lengthy time-scale, we previously reported a refrigerator-sized continuous flow system for the on-demand production of essential medicines. Building on this technology, herein we report a second-generation, reconfigurable and 25 % smaller (by volume) continuous flow pharmaceutical manufacturing platform featuring advances in reaction and purification equipment. Consisting of two compact [0.7 (L)×0.5 (D)×1.3 m (H)] stand-alone units for synthesis and purification/formulation processes, the capabilities of this automated system are demonstrated with the synthesis of nicardipine hydrochloride and the production of concentrated liquid doses of ciprofloxacin hydrochloride, neostigmine methylsulfate and rufinamide that meet US Pharmacopeia standards.
Collapse
Affiliation(s)
- Ping Zhang
- Novartis Institute of Biomedical Research, 250 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Nopphon Weeranoppanant
- Department of Chemical Engineering, Faculty of Engineering, Burapha University, 169 Long-Hard Bangsaen Road, Chonburi, 20131, Thailand
| | - Dale A Thomas
- Department of Chemical Engineering or Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Kohei Tahara
- Laboratory of Pharmaceutical Engineering, Gifu Pharmaceutical University, 1-25-4 Daigaku-Nishi, Gifu, 501-1196, Japan
| | - Torsten Stelzer
- Department of Pharmaceutical Sciences, University of Puerto Rico, Medical Sciences Campus, San Juan, PR, 00936, USA
| | - Mary Grace Russell
- Department of Chemical Engineering or Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Marcus O'Mahony
- Pharmaceutical & Preclinical Sciences, Vertex Pharmaceuticals Inc., 50 Northern Avenue, Boston, MA, 02210, USA
| | - Allan S Myerson
- Department of Chemical Engineering or Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Hongkun Lin
- Department of Chemical Engineering or Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Liam P Kelly
- Department of Chemical Engineering or Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Klavs F Jensen
- Department of Chemical Engineering or Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Timothy F Jamison
- Department of Chemical Engineering or Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Chunhui Dai
- Department of Chemical Engineering or Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Yuqing Cui
- Department of Chemical Engineering or Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Naomi Briggs
- Department of Chemical Engineering or Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Rachel L Beingessner
- Department of Chemical Engineering or Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Andrea Adamo
- Department of Chemical Engineering or Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| |
Collapse
|
66
|
Sullivan RJ, Newman SG. Chiral auxiliary recycling in continuous flow: automated recovery and reuse of Oppolzer's sultam. Chem Sci 2018; 9:2130-2134. [PMID: 29719686 PMCID: PMC5896371 DOI: 10.1039/c7sc05192a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 01/17/2018] [Indexed: 11/24/2022] Open
Abstract
The telescoping of a three-stage, chiral auxiliary-mediated transformation in flow is described, including continuous separation of the product and auxiliary, enabling automated auxiliary reuse.
The telescoping of a three-stage, chiral auxiliary-mediated transformation in flow is described, including continuous separation of the product and auxiliary. The auxiliary can either be collected for later reuse, or directly fed back to the beginning of the process for recycling in real time, enabling each molecule of auxiliary to make multiple equivalents of chiral product and thus minimizing the step- and atom-economy issues associated with auxiliary-mediated synthesis. This concept is demonstrated for the asymmetric hydrogenation of olefins using Oppolzer's sultam, shortening the total reaction time >100 fold compared to batch, and demonstrating formal sub-stoichiometric auxiliary loading with respect to the process by automating auxiliary recycling within a closed loop.
Collapse
Affiliation(s)
- R J Sullivan
- Centre for Catalysis Research and Innovation , Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie-Curie , Ottawa , Ontario K1N 6N5A , Canada .
| | - S G Newman
- Centre for Catalysis Research and Innovation , Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie-Curie , Ottawa , Ontario K1N 6N5A , Canada .
| |
Collapse
|
67
|
Vasudevan N, Sharma MK, Reddy DS, Kulkarni AA. A multi-step continuous flow synthesis of the cystic fibrosis medicine ivacaftor. REACT CHEM ENG 2018. [DOI: 10.1039/c8re00025e] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A continuous flow ozonolysis method combined with a multi-step flow sequence is developed for the synthesis of the drug ivacaftor for the first time.
Collapse
Affiliation(s)
- N. Vasudevan
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune – 411008
- India
| | - Mrityunjay K. Sharma
- Chemical Engineering and Process Development Division
- CSIR-National Chemical Laboratory
- Pune – 411008
- India
| | - D. Srinivasa Reddy
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune – 411008
- India
| | - Amol A. Kulkarni
- Chemical Engineering and Process Development Division
- CSIR-National Chemical Laboratory
- Pune – 411008
- India
| |
Collapse
|
68
|
Porcar R, Lozano P, Burguete MI, Garcia-Verdugo E, Luis SV. Dimethyl carbonate as a non-innocent benign solvent for the multistep continuous flow synthesis of amino alcohols. REACT CHEM ENG 2018. [DOI: 10.1039/c8re00097b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient methodology for the production and resolution of amino alcohols with a low environmental impact has been developed.
Collapse
Affiliation(s)
- Raul Porcar
- Dpt. of Inorganic and Organic Chemistry
- Supramolecular and Sustainable Chemistry Group
- University Jaume I
- Spain
| | - Pedro Lozano
- Departamento de Bioquímica y Biología Molecular B e Inmunología
- Facultad de Química
- Universidad de Murcia
- Campus de Excelencia Internacional Regional “Campus Mare Nostrum”
- E-30100 Murcia
| | - Maria Isabel Burguete
- Dpt. of Inorganic and Organic Chemistry
- Supramolecular and Sustainable Chemistry Group
- University Jaume I
- Spain
| | - Eduardo Garcia-Verdugo
- Dpt. of Inorganic and Organic Chemistry
- Supramolecular and Sustainable Chemistry Group
- University Jaume I
- Spain
| | - Santiago V. Luis
- Dpt. of Inorganic and Organic Chemistry
- Supramolecular and Sustainable Chemistry Group
- University Jaume I
- Spain
| |
Collapse
|
69
|
Korwar S, Amir S, Tosso PN, Desai BK, Kong CJ, Fadnis S, Telang NS, Ahmad S, Roper TD, Gupton BF. The Application of a Continuous Grignard Reaction in the Preparation of Fluconazole. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Sudha Korwar
- Department of Chemistry and Department of Chemical and Life Science, Engineering Virginia Commonwealth University 601 W. Main St. 23220 Richmond VA USA
| | - Somi Amir
- Department of Chemistry and Department of Chemical and Life Science, Engineering Virginia Commonwealth University 601 W. Main St. 23220 Richmond VA USA
| | - Perrer N. Tosso
- Department of Chemistry and Department of Chemical and Life Science, Engineering Virginia Commonwealth University 601 W. Main St. 23220 Richmond VA USA
| | - Bimbisar K. Desai
- Department of Chemistry and Department of Chemical and Life Science, Engineering Virginia Commonwealth University 601 W. Main St. 23220 Richmond VA USA
| | - Caleb J. Kong
- Department of Chemistry and Department of Chemical and Life Science, Engineering Virginia Commonwealth University 601 W. Main St. 23220 Richmond VA USA
| | - Swara Fadnis
- Department of Chemistry and Department of Chemical and Life Science, Engineering Virginia Commonwealth University 601 W. Main St. 23220 Richmond VA USA
| | - Nakul S. Telang
- Department of Chemistry and Department of Chemical and Life Science, Engineering Virginia Commonwealth University 601 W. Main St. 23220 Richmond VA USA
| | - Saeed Ahmad
- Department of Chemistry and Department of Chemical and Life Science, Engineering Virginia Commonwealth University 601 W. Main St. 23220 Richmond VA USA
| | - Thomas D. Roper
- Department of Chemistry and Department of Chemical and Life Science, Engineering Virginia Commonwealth University 601 W. Main St. 23220 Richmond VA USA
| | - B. Frank Gupton
- Department of Chemistry and Department of Chemical and Life Science, Engineering Virginia Commonwealth University 601 W. Main St. 23220 Richmond VA USA
| |
Collapse
|
70
|
Damião MCFCB, Galaverna R, Kozikowski AP, Eubanks J, Pastre JC. Telescoped continuous flow generation of a library of highly substituted 3-thio-1,2,4-triazoles. REACT CHEM ENG 2017. [DOI: 10.1039/c7re00125h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An integrated continuous flow process for the synthesis of 3-thio-1,2,4-triazoles is reported. A small library of 18 compounds was prepared in just 48 minutes of residence time in moderate to excellent yields.
Collapse
Affiliation(s)
| | - Renan Galaverna
- Institute of Chemistry
- University of Campinas - UNICAMP
- Campinas
- Brazil
| | | | - James Eubanks
- Division of Genetics and Development
- Krembil Research Institute
- Toronto
- Canada
| | - Julio C. Pastre
- Institute of Chemistry
- University of Campinas - UNICAMP
- Campinas
- Brazil
| |
Collapse
|