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1
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Magano J. Large-Scale Amidations in Process Chemistry: Practical Considerations for Reagent Selection and Reaction Execution. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.2c00005] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Javier Magano
- Chemical Research & Development, Pfizer Worldwide Research & Development, Eastern Point Road, Groton, Connecticut 06340, United States
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2
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Sperry JB, Minteer CJ, Tao J, Johnson R, Duzguner R, Hawksworth M, Oke S, Richardson PF, Barnhart R, Bill DR, Giusto RA, Weaver JD. Thermal Stability Assessment of Peptide Coupling Reagents Commonly Used in Pharmaceutical Manufacturing. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.8b00193] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jeffrey B. Sperry
- Pfizer Chemical Research and
Development, Process Safety Laboratories, 558 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Christopher J. Minteer
- Pfizer Chemical Research and
Development, Process Safety Laboratories, 558 Eastern Point Road, Groton, Connecticut 06340, United States
| | - JingYa Tao
- Pfizer Chemical Research and
Development, Process Safety Laboratories, 558 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Rebecca Johnson
- Pfizer Chemical Research and Development, Process Safety
Laboratories, Ramsgate Road, Sandwich CT13 9NJ, United Kingdom
| | - Remzi Duzguner
- Pfizer Chemical Research and
Development, Process Safety Laboratories, 558 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Michael Hawksworth
- Pfizer Chemical Research and Development, Process Safety
Laboratories, Ramsgate Road, Sandwich CT13 9NJ, United Kingdom
| | - Samantha Oke
- Pfizer Chemical Research and Development, Process Safety
Laboratories, Ramsgate Road, Sandwich CT13 9NJ, United Kingdom
| | - Paul F. Richardson
- Pfizer
Worldwide Medicinal Chemistry, 10770 Science Center Drive, San Diego, California 92121, United States
| | - Richard Barnhart
- Pfizer Chemical Research and
Development, Process Safety Laboratories, 558 Eastern Point Road, Groton, Connecticut 06340, United States
| | - David R. Bill
- Pfizer Chemical Research and
Development, Process Safety Laboratories, 558 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Robert A. Giusto
- Pfizer Chemical Research and
Development, Process Safety Laboratories, 558 Eastern Point Road, Groton, Connecticut 06340, United States
| | - John D. Weaver
- Pfizer Chemical Research and
Development, Process Safety Laboratories, 558 Eastern Point Road, Groton, Connecticut 06340, United States
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3
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Huang Y, Feng Y, Gao W, Zhang C, Chen L. An Efficient Method for the Synthesis of Laquinimod. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2324] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yanyan Huang
- School of Chemical Engineering and Technology; Tianjin University; Tianjin People's Republic of China
| | - Ying Feng
- School of Chemical Engineering and Technology; Tianjin University; Tianjin People's Republic of China
| | - Wensheng Gao
- School of Chemical Engineering and Technology; Tianjin University; Tianjin People's Republic of China
| | - Chao Zhang
- School of Chemical Engineering and Technology; Tianjin University; Tianjin People's Republic of China
| | - Ligong Chen
- School of Chemical Engineering and Technology; Tianjin University; Tianjin People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin People's Republic of China
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4
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Dunetz JR, Magano J, Weisenburger GA. Large-Scale Applications of Amide Coupling Reagents for the Synthesis of Pharmaceuticals. Org Process Res Dev 2016. [DOI: 10.1021/op500305s] [Citation(s) in RCA: 411] [Impact Index Per Article: 51.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Joshua R. Dunetz
- Process
Chemistry, Gilead Sciences, 333 Lakeside Drive, Foster City, California 94404, United States
| | - Javier Magano
- Chemical Research & Development, Pfizer Worldwide Research & Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Gerald A. Weisenburger
- Chemical Research & Development, Pfizer Worldwide Research & Development, Eastern Point Road, Groton, Connecticut 06340, United States
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5
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Nielsen DU, Korsager S, Lindhardt AT, Skrydstrup T. A Palladium-Catalyzed Carbonylative-Deacetylative Sequence to 1,3-Keto Amides. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400545] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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6
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Verma C, Sharma S, Pathak A. A phosgene and peroxide-free one-pot tandem synthesis of isatoic anhydrides involving anthranilic acid, Boc anhydride, and 2-chloro-N-methyl pyridinium iodide. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.10.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Mulakayala N, Rao P, Iqbal J, Bandichhor R, Oruganti S. Synthesis of novel therapeutic agents for the treatment of multiple sclerosis: A brief overview. Eur J Med Chem 2013; 60:170-86. [DOI: 10.1016/j.ejmech.2012.10.055] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Revised: 09/21/2012] [Accepted: 10/17/2012] [Indexed: 12/17/2022]
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8
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Beutner GL, Kuethe JT, Yasuda N. A practical method for preparation of 4-hydroxyquinolinone esters. J Org Chem 2007; 72:7058-61. [PMID: 17676920 DOI: 10.1021/jo071200x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
4-Hydroxyquinolinone esters are a common motif for many medicinal agents. Several methods exist for preparation of these compounds, generally involving the use of sodium hydride, which raises significant safety issues and limits their application to large-scale synthesis. In this note a practical, safe, and general method that employs a combination of diisopropylethylamine and sodium tert-butoxide is described. This allows for the synthesis of 4-hydroxyquinolinone esters and amides in good yields.
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Affiliation(s)
- Gregory L Beutner
- Department of Process Research, Merck and Company, Inc., P.O. Box 2000, Rahway, New Jersey 07065, USA.
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