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Novakov IA, Sheikin DS, Navrotskii MB, Mkrtchyan AS, Brunilina LL, Balakin KV. Dexoxadrol and its bioisosteres: structure, synthesis, and pharmacological activity. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-2946-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Ötvös SB, Kappe CO. Continuous-Flow Amide and Ester Reductions Using Neat Borane Dimethylsulfide Complex. CHEMSUSCHEM 2020; 13:1800-1807. [PMID: 31894652 PMCID: PMC7187139 DOI: 10.1002/cssc.201903459] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 01/02/2020] [Indexed: 05/05/2023]
Abstract
Reductions of amides and esters are of critical importance in synthetic chemistry, and there are numerous protocols for executing these transformations employing traditional batch conditions. Notably, strategies based on flow chemistry, especially for amide reductions, are much less explored. Herein, a simple process was developed in which neat borane dimethylsulfide complex (BH3 ⋅DMS) was used to reduce various esters and amides under continuous-flow conditions. Taking advantage of the solvent-free nature of the commercially available borane reagent, high substrate concentrations were realized, allowing outstanding productivity and a significant reduction in E-factors. In addition, with carefully optimized short residence times, the corresponding alcohols and amines were obtained in high selectivity and high yields. The synthetic utility of the inexpensive and easily implemented flow protocol was further corroborated by multigram-scale syntheses of pharmaceutically relevant products. Owing to its beneficial features, including low solvent and reducing agent consumption, high selectivity, simplicity, and inherent scalability, the present process demonstrates fewer environmental concerns than most typical batch reductions using metal hydrides as reducing agents.
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Affiliation(s)
- Sándor B. Ötvös
- Institute of ChemistryUniversity of Graz, NAWI GrazHeinrichstrasse 288010GrazAustria
| | - C. Oliver Kappe
- Institute of ChemistryUniversity of Graz, NAWI GrazHeinrichstrasse 288010GrazAustria
- Center for Continuous Synthesis and Processing (CCFLOW)Research Center Pharmaceutical Engineering (RCPE)Inffeldgasse 138010GrazAustria
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Afanasyev OI, Kuchuk E, Usanov DL, Chusov D. Reductive Amination in the Synthesis of Pharmaceuticals. Chem Rev 2019; 119:11857-11911. [PMID: 31633341 DOI: 10.1021/acs.chemrev.9b00383] [Citation(s) in RCA: 313] [Impact Index Per Article: 62.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Reductive amination plays a paramount role in pharmaceutical and medicinal chemistry owing to its synthetic merits and the ubiquitous presence of amines among biologically active compounds. It is one of the key approaches to C-N bond construction due to its operational easiness and a wide toolbox of protocols. Recent studies show that at least a quarter of C-N bond-forming reactions in the pharmaceutical industry are performed via reductive amination. This Review concisely compiles information on 71 medical substances that are synthesized by reductive amination. Compounds are grouped according to the principle of action, which includes drugs affecting the central nervous system, drugs affecting the cardiovascular system, anticancer drugs, antibiotics, antiviral and antifungal medicines, drugs affecting the urinary system, drugs affecting the respiratory system, antidiabetic medications, drugs affecting the gastrointestinal tract, and drugs regulating metabolic processes. A general synthetic scheme is provided for each compound, and the description is focused on reductive amination steps. The green chemistry metric of reaction mass efficiency was calculated for all reactions.
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Affiliation(s)
- Oleg I Afanasyev
- A. N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences , Vavilova St. 28 , Moscow 119991 , Russian Federation
| | - Ekaterina Kuchuk
- A. N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences , Vavilova St. 28 , Moscow 119991 , Russian Federation
| | - Dmitry L Usanov
- Broad Institute of MIT and Harvard , 415 Main Street , Cambridge , Massachusetts 02142 , United States
| | - Denis Chusov
- A. N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences , Vavilova St. 28 , Moscow 119991 , Russian Federation.,National Research University Higher School of Economics , Miasnitskaya Str. 20 , Moscow 101000 , Russian Federation.,Peoples' Friendship University of Russia , 6 Miklukho-Maklaya Street , Moscow 117198 , Russian Federation
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Sorribes I, Junge K, Beller M. Direct catalytic N-alkylation of amines with carboxylic acids. J Am Chem Soc 2014; 136:14314-9. [PMID: 25230096 DOI: 10.1021/ja5093612] [Citation(s) in RCA: 98] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A straightforward process for the N-alkylation of amines has been developed applying readily available carboxylic acids and silanes as the hydride source. Complementary to known reductive aminations, effective C-N bond construction proceeds under mild conditions and allows obtaining a broad range of alkylated secondary and tertiary amines, including fluoroalkyl-substituted anilines as well as the bioactive compound Cinacalcet HCl.
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Affiliation(s)
- Iván Sorribes
- Leibniz Institute for Catalysis, University of Rostock , Albert Einstein Str. 29a, 18059 Rostock, Germany
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Prediger P, da Silva AR, Correia CRD. Construction of 3-arylpropylamines using Heck arylations. The total synthesis of cinacalcet hydrochloride, alverine, and tolpropamine. Tetrahedron 2014. [DOI: 10.1016/j.tet.2013.10.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Wang J, Sánchez-Roselló M, Aceña JL, del Pozo C, Sorochinsky AE, Fustero S, Soloshonok VA, Liu H. Fluorine in Pharmaceutical Industry: Fluorine-Containing Drugs Introduced to the Market in the Last Decade (2001–2011). Chem Rev 2013; 114:2432-506. [DOI: 10.1021/cr4002879] [Citation(s) in RCA: 3202] [Impact Index Per Article: 291.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jiang Wang
- Key
Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - María Sánchez-Roselló
- Department
of Organic Chemistry, Faculty of Pharmacy, University of Valencia, Av. Vicente Andrés Estellés, 46100 Burjassot, Valencia, Spain
- Laboratorio
de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, C/ Eduardo Primo Yúfera 3, 46012 Valencia, Spain
| | - José Luis Aceña
- Department
of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 San Sebastian, Spain
| | - Carlos del Pozo
- Department
of Organic Chemistry, Faculty of Pharmacy, University of Valencia, Av. Vicente Andrés Estellés, 46100 Burjassot, Valencia, Spain
| | - Alexander E. Sorochinsky
- Department
of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 San Sebastian, Spain
- IKERBASQUE, Basque Foundation for Science, Alameda Urquijo, 36-5 Plaza Bizkaia, 48011 Bilbao, Spain
- Institute
of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, Murmanska Street 1, 02660 Kyiv-94, Ukraine
| | - Santos Fustero
- Department
of Organic Chemistry, Faculty of Pharmacy, University of Valencia, Av. Vicente Andrés Estellés, 46100 Burjassot, Valencia, Spain
- Laboratorio
de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, C/ Eduardo Primo Yúfera 3, 46012 Valencia, Spain
| | - Vadim A. Soloshonok
- Department
of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 San Sebastian, Spain
- IKERBASQUE, Basque Foundation for Science, Alameda Urquijo, 36-5 Plaza Bizkaia, 48011 Bilbao, Spain
| | - Hong Liu
- Key
Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
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Tsuchiya D, Tabata M, Moriyama K, Togo H. Efficient Swern oxidation and Corey–Kim oxidation with ion-supported methyl sulfoxides and methyl sulfides. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.06.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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