1
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Ferencz E, Kelemen ÉK, Obreja M, Tóth G, Urkon M, Zöldhegyi A, Sipos E, Szabó ZI. The Applicability of Chromatographic Retention Modeling on Chiral Stationary Phases in Reverse-Phase Mode: A Case Study for Ezetimibe and Its Impurities. Int J Mol Sci 2023; 24:16097. [PMID: 38003286 PMCID: PMC10671152 DOI: 10.3390/ijms242216097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 11/01/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
Mechanistic modeling is useful for predicting and modulating selectivity even in early chromatographic method development. This approach is also in accordance with current analytical quality using design principles and is highly welcomed by the authorities. The aim of this study was to investigate the separation behavior of two different types of chiral stationary phases (CSPs) for the separation of ezetimibe and its related substances using the mechanistic retention modeling approach offered by the Drylab software (version 4.5) package. Based on the obtained results, both CSPs presented with chemoselectivity towards the impurities of ezetimibe. The cyclodextrin-based CSP displayed a higher separation capacity and was able to separate seven related substances from the active pharmaceutical ingredient, while the cellulose-based column enabled the baseline resolution of six impurities from ezetimibe. Generally, the accuracy of predicted retention times was lower for the polysaccharide CSP, which could indicate the presence of additional secondary interactions between the analytes and the CSP. It was also demonstrated that the combination of mechanistic modeling and an experimental design approach can be applied to method development on CSPs in reverse-phase mode. The applicability of the methods was tested on spiked artificial placebo samples, while intraday and long-term (2 years) method repeatability was also challenged through comparing the obtained retention times and resolution values. The results indicated the excellent robustness of the selected setpoints. Overall, our findings indicate that the chiral columns could offer orthogonal selectivity to traditional reverse-phase columns for the separation of structurally similar compounds.
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Affiliation(s)
- Elek Ferencz
- Department of Physical Chemistry, Faculty of Pharmacy, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, 540142 Targu Mures, Romania;
- Gedeon Richter Romania S.A., Analytical Development Department, 540306 Targu Mures, Romania
| | - Éva-Katalin Kelemen
- Gedeon Richter Romania S.A., Analytical Development Department, 540306 Targu Mures, Romania
| | - Mona Obreja
- Gedeon Richter Romania S.A., Analytical Development Department, 540306 Targu Mures, Romania
| | - Gergő Tóth
- Department of Pharmaceutical Chemistry, Semmelweis University, 1083 Budapest, Hungary
| | - Melinda Urkon
- Department of Pharmacology and Clinical Pharmacy, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, 540142 Targu Mures, Romania
| | - Arnold Zöldhegyi
- Molnár-Institute for Applied Chromatography, 10407 Berlin, Germany
| | - Emese Sipos
- Department of Pharmaceutical Industry and Management, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, 540142 Targu Mures, Romania
| | - Zoltán-István Szabó
- Department of Pharmaceutical Industry and Management, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, 540142 Targu Mures, Romania
- Sz-imfidum Ltd., 525401 Lunga, Romania
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2
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Mohar M, Ghosh S, Hajra A. Visible Light Induced Three-Component 1,2-Dicarbofunctionalization of Alkenes and Alkynes. CHEM REC 2023; 23:e202300121. [PMID: 37309268 DOI: 10.1002/tcr.202300121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/31/2023] [Indexed: 06/14/2023]
Abstract
Harnessing visible-light in organic synthesis is one of the most effective methods that aligns with green and sustainable chemistry principles and hence skyrocketed in the last two decades. Similarly, three-component 1,2-dicarbofunctionalization of alkenes and alkynes has recently been a great choice to construct complex molecular systems in an easy and rapid manner. Therefore, light-induced reactions can be an excellent alternative to carry out 1,2-dicarbofunctionalization reactions, and very recently, organic chemists across the globe have fascinated us with their interesting articles. In this present review, we have summarized the recent advancements in the area of visible light induced three-component 1,2-dicarbofunctionalization of alkenes and alkynes till March 2023. We have categorized the discussion based on the catalysts used to carry out the transformations for better understanding and different important aspects of these transformations have also been covered.
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Affiliation(s)
- Mrittika Mohar
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, India
| | - Sumit Ghosh
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, India
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, India
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3
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Analytical quality by design-compliant retention modeling for exploring column interchangeabilities in separating ezetimibe and its related substances. J Chromatogr A 2022; 1682:463494. [PMID: 36126559 DOI: 10.1016/j.chroma.2022.463494] [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: 06/20/2022] [Revised: 08/29/2022] [Accepted: 09/08/2022] [Indexed: 11/21/2022]
Abstract
There are several potential advantages of using experimental design-based retention modeling for chromatographic method development. Most importantly, through the model-delivered systematic understanding (Design Spaces), users can benefit from increased method consistency, flexibility and robustness that can efficiently be achieved at lesser amount of development time. As a result, modeling tools have always been great supplementary assets and welcomed by both the pharmaceutical industry and the regulatory authorities. Most recently published chapters of ICH however - Q2(R2) and Q14 (both currently drafts) - evidence a further paradigm shift, specifying the elements of model-based development strategies in the so-called "enhanced approach". The main aim of this study was to investigate the impact of stationary phase chemistries on chromatographic method performance in the application example of ezetimibe and its related substances. A commercial modeling software package (DryLab®) was used to outline three-dimensional experimental design frameworks and acquire model Design Spaces (DSs) of 9 tested columns. This was done by performing 12 input calibration experiments per column, systematically changing critical method parameters (CMPs) as variables such as the gradient time (tG), temperature (T) and the ternary composition (tC) of the mobile phase. The constructed models allowed studying retention behaviors of selected analytes within each separation systems. In the first part of our work, we performed single optimizations for all nine stationary phases with substantially different surface modifications based on their highest achievable critical resolution values. For these optimum points in silico robustness testing was performed, clearly showing a change of CMPs, depending on the column, and specified optimum setpoint. In the second part of our work, we simultaneously compared the three-dimensional virtual separation models to identify all method parameter combinations that could provide at least baseline separation (Rs, crit.>1.50). These overlapping areas between the models described a common method operational design region (MODR) where columns were considered completely interchangeable - in terms of their baseline resolving capability - regardless of their exact physicochemical properties. A final optimized, column-independent working point within the common MODR was selected for verification. Indeed, experimental chromatograms showed excellent agreement with the model; all columns in the common condition were able to yield critical resolution values higher than 2.0, only their retentivity (elution window of peaks) was found different in some cases. Our results underline that a profound understanding of the separation process is of utmost importance andthat in some cases, adequate selectivity is achievable on various stationary phases.
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4
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Mohara M, Davis MP, Korter TM, Shimura K, Ono T, Aiko K. Study on Hydration and Dehydration of Ezetimibe by Terahertz Spectroscopy with Humidity-Controlled Measurements and Theoretical Analysis. J Phys Chem A 2022; 126:2879-2888. [PMID: 35522730 PMCID: PMC9125560 DOI: 10.1021/acs.jpca.2c00301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 04/24/2022] [Indexed: 11/29/2022]
Abstract
Understanding the solid-state transitions of active pharmaceutical ingredients (APIs) is essential for quality control since differences in their forms affect the bioavailability of APIs. Terahertz (THz) frequency-domain spectroscopy is suitable for such an application since it can sensitively probe the lattice phonon modes originating in the crystal structures. THz absorption spectra were obtained for ezetimibe (EZT) and ezetimibe monohydrate (EZT-MH), which have similar crystalline structures and belong to the same space group. The observed absorption spectrum of EZT matched well with the solid-state density functional theory (ss-DFT)-simulated spectrum for the structures at 0 K and room temperature (modeled using constrained unit cell volumes). However for EZT-MH, the ss-DFT spectrum of the room-temperature structure showed better correlation with the experimental THz spectrum than that of the simulated spectrum of the 0 K structures, suggesting that the EZT-MH crystal has greater anharmonic character. Gibbs free-energy curves were calculated, and EZT-MH was found to be more stable than pure EZT and water in a broad temperature range. The hydrate stability may be influenced by the existence of more hydrogen bonds in EZT-MH. The hydration and dehydration of EZT in a pure API tablet and formulation tablets were monitored using a THz spectrometer with a humidity-controlled sample chamber. The effect of the excipient in the formulation tablet on hydration was successfully confirmed by showing that the solid-state transition of the API with excipients is significantly slower than that without it. Under a relative humidity of 60%, hydration of EZT in a pure EZT tablet occurred in 200 min, while the hydration of EZT in a formulation tablet was 50 times slower.
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Affiliation(s)
- Mizuki Mohara
- Hitachi
High-Tech Corp., Shinko-cho, Hitachinaka 312-8504, Japan
| | - Margaret P. Davis
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Timothy M. Korter
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Kei Shimura
- Hitachi
High-Tech Corp., Shinko-cho, Hitachinaka 312-8504, Japan
| | - Touya Ono
- Hitachi
High-Tech Corp., Shinko-cho, Hitachinaka 312-8504, Japan
| | - Kenji Aiko
- Hitachi
High-Tech Corp., Shinko-cho, Hitachinaka 312-8504, Japan
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5
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Galeeva AM, Valiullina ZR, Selezneva NK, Miftakhov MS. Reactions of 2,3-Dibromo-2-methylpropanamides Promoted by Potassium tert-Butoxide. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1070428021100122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Simić S, Zukić E, Schmermund L, Faber K, Winkler CK, Kroutil W. Shortening Synthetic Routes to Small Molecule Active Pharmaceutical Ingredients Employing Biocatalytic Methods. Chem Rev 2021; 122:1052-1126. [PMID: 34846124 DOI: 10.1021/acs.chemrev.1c00574] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Biocatalysis, using enzymes for organic synthesis, has emerged as powerful tool for the synthesis of active pharmaceutical ingredients (APIs). The first industrial biocatalytic processes launched in the first half of the last century exploited whole-cell microorganisms where the specific enzyme at work was not known. In the meantime, novel molecular biology methods, such as efficient gene sequencing and synthesis, triggered breakthroughs in directed evolution for the rapid development of process-stable enzymes with broad substrate scope and good selectivities tailored for specific substrates. To date, enzymes are employed to enable shorter, more efficient, and more sustainable alternative routes toward (established) small molecule APIs, and are additionally used to perform standard reactions in API synthesis more efficiently. Herein, large-scale synthetic routes containing biocatalytic key steps toward >130 APIs of approved drugs and drug candidates are compared with the corresponding chemical protocols (if available) regarding the steps, reaction conditions, and scale. The review is structured according to the functional group formed in the reaction.
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Affiliation(s)
- Stefan Simić
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstraße 28, 8010 Graz, Austria
| | - Erna Zukić
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstraße 28, 8010 Graz, Austria
| | - Luca Schmermund
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstraße 28, 8010 Graz, Austria
| | - Kurt Faber
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstraße 28, 8010 Graz, Austria
| | - Christoph K Winkler
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstraße 28, 8010 Graz, Austria
| | - Wolfgang Kroutil
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstraße 28, 8010 Graz, Austria.,Field of Excellence BioHealth─University of Graz, 8010 Graz, Austria.,BioTechMed Graz, 8010 Graz, Austria
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7
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Synthesis of deuterium labeled ezetimibe and its glucuronide conjugate. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-07855-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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8
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Han J, Konno H, Sato T, Soloshonok VA, Izawa K. Tailor-made amino acids in the design of small-molecule blockbuster drugs. Eur J Med Chem 2021; 220:113448. [PMID: 33906050 DOI: 10.1016/j.ejmech.2021.113448] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/29/2021] [Accepted: 03/29/2021] [Indexed: 02/06/2023]
Abstract
The role of amino acids (AAs) in modern health industry is well-appreciated. Residues of individual AAs, or their chemical modifications, such as diamines and amino alcohols, are frequently found in the structures of modern pharmaceuticals. The goal of this review article, is to emphasize that, currently, tailor-made AAs serve as key structural features in many most successful pharmaceuticals, so-called blockbuster drugs. In the present article, we profile 14 small-molecule drugs, underscoring the breadth of structural variety of AAs applications in numerous therapeutic areas. For each compound, we provide spectrum of biological activity, medicinal chemistry discovery, and synthetic approaches.
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Affiliation(s)
- Jianlin Han
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, Jiangsu, China
| | - Hiroyuki Konno
- Department of Biological Engineering, Graduate School of Science and Engineering, Yamagata University, Yonezawa, Yamagata, 992-8510, Japan
| | - Tatsunori Sato
- Hamari Chemicals Ltd., 1-19-40, Nankokita, Suminoe-ku, Osaka, 559-0034, Japan
| | - Vadim A Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018, San Sebastián, Spain; IKERBASQUE, Basque Foundation for Science, María Díaz de Haro 3, Plaza Bizkaia, 48013, Bilbao, Spain.
| | - Kunisuke Izawa
- Hamari Chemicals Ltd., 1-19-40, Nankokita, Suminoe-ku, Osaka, 559-0034, Japan.
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9
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Kim JH, Paul A, Ghiviriga I, Seidel D. α-C-H Bond Functionalization of Unprotected Alicyclic Amines: Lewis-Acid-Promoted Addition of Enolates to Transient Imines. Org Lett 2021; 23:797-801. [PMID: 33464093 PMCID: PMC7924990 DOI: 10.1021/acs.orglett.0c04024] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Enolizable cyclic imines, obtained in situ from their corresponding lithium amides by oxidation with simple ketone oxidants, are readily alkylated with a range of enolates to provide mono- and polycyclic β-aminoketones in a single operation, including the natural product (±)-myrtine. Nitrile anions also serve as competent nucleophiles in these transformations, which are promoted by BF3 etherate. β-Aminoesters derived from ester enolates can be converted to the corresponding β-lactams.
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Affiliation(s)
- Jae Hyun Kim
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Anirudra Paul
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Ion Ghiviriga
- Center for NMR Spectroscopy, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Daniel Seidel
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
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10
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Heravi MM, Zadsirjan V. Prescribed drugs containing nitrogen heterocycles: an overview. RSC Adv 2020; 10:44247-44311. [PMID: 35557843 PMCID: PMC9092475 DOI: 10.1039/d0ra09198g] [Citation(s) in RCA: 343] [Impact Index Per Article: 85.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 11/23/2020] [Indexed: 12/21/2022] Open
Abstract
Heteroatoms as well as heterocyclic scaffolds are frequently present as the common cores in a plethora of active pharmaceuticals natural products. Statistically, more than 85% of all biologically active compounds are heterocycles or comprise a heterocycle and most frequently, nitrogen heterocycles as a backbone in their complex structures. These facts disclose and emphasize the vital role of heterocycles in modern drug design and drug discovery. In this review, we try to present a comprehensive overview of top prescribed drugs containing nitrogen heterocycles, describing their pharmacological properties, medical applications and their selected synthetic pathways. It is worth mentioning that the reported examples are actually limited to current top selling drugs, being or containing N-heterocycles and their synthetic information has been extracted from both scientific journals and the wider patent literature.
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Affiliation(s)
- Majid M Heravi
- Department of Chemistry, School of Science, Alzahra University PO Box 1993891176, Vanak Tehran Iran +98 21 88041344 +98 21 88044051
| | - Vahideh Zadsirjan
- Department of Chemistry, School of Science, Alzahra University PO Box 1993891176, Vanak Tehran Iran +98 21 88041344 +98 21 88044051
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11
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Sato K, Isoda M, Tarui A, Omote M. Reductive Carbon–Carbon Bond Forming Reactions with Carbonyls Mediated by Rh–H Complexes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kazuyuki Sato
- Faculty of Pharmaceutical Sciences Setsunan University 45‐1 573‐0101 Nagaotoge‐cho Hirakata, Osaka Japan
| | - Motoyuki Isoda
- School of Pharmacy at Fukuoka International University of Health and Welfare 137‐1 Enokizu 831‐8501 Okawa Fukuoka Japan
| | - Atsushi Tarui
- Faculty of Pharmaceutical Sciences Setsunan University 45‐1 573‐0101 Nagaotoge‐cho Hirakata, Osaka Japan
| | - Masaaki Omote
- Faculty of Pharmaceutical Sciences Setsunan University 45‐1 573‐0101 Nagaotoge‐cho Hirakata, Osaka Japan
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12
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Zhang XJ, Zhou R, Wu D, Tang YQ, Wang MY, Liu ZQ, Zheng YG. Efficient production of an ezetimibe intermediate using carbonyl reductase coupled with glucose dehydrogenase. Biotechnol Prog 2020; 37:e3068. [PMID: 32822119 DOI: 10.1002/btpr.3068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 07/31/2020] [Accepted: 08/17/2020] [Indexed: 11/09/2022]
Abstract
Ezetimibe is a top-selling hypolipidemic drug for the treatment of cardiovascular diseases. Biosynthesis of (4S)-3-[(5S)-5-(4-fluorophenyl)-5-hydroxypentanoyl]-4-phenyl-1,3-oxazolidin-2-one ((S)-ET-5) using carbonyl reductase has shown advantages including high catalytic efficiency, excellent stereoselectivity, mild reaction conditions, and environmental friendness, and was considered as the key step for ezetimibe production. The regeneration efficiency of the cofactor, nicotinamide adenine dinucleotide (phosphate) (NAD(P)H) is one of the main restricted factor. Recombinant Escherichia coli strain (smCR125) coexpressing carbonyl reductase (CR125) and glucose dehydrogenase were successfully constructed and applied for the production of (S)-ET-5 for the first time. Without extra addition of the coenzyme NADPH, the yield of 99.8% and the enantiomeric excess (e.e.) of 99.9% were achieved under ET-4 concentration of 200 g/L. Using a substrate fed-batch strategy, under the optimal conditions, the substrate ET-4 concentration was increased to 250 g/L with the yield of 98.9% and the e.e. of 99.9% after 12 hr reaction. The space-time yield of 494.5 g L-1 d-1 and the space-time yield per gram biocatalyst of 24.7 g L-1 d-1 g-1 DCW were achieved, which were higher than ever reported for the biosynthesis of the ezetimibe intermediate.
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Affiliation(s)
- Xiao-Jian Zhang
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Rong Zhou
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Di Wu
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Ya-Qun Tang
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Meng-Ying Wang
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Zhi-Qiang Liu
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Yu-Guo Zheng
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
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13
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Selezneva NK, Galeeva AM, Khalilov LM, Valiullina ZR, Miftakhov MS. Base-determinant chemodivergent transformations of chiral 2,3-dibromopropanamide derivative. MENDELEEV COMMUNICATIONS 2020. [DOI: 10.1016/j.mencom.2020.05.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Hua YY, Bin HY, Wei T, Cheng HA, Lin ZP, Fu XF, Li YQ, Xie JH, Yan PC, Zhou QL. Iridium-Catalyzed Asymmetric Hydrogenation of γ- and δ-Ketoacids for Enantioselective Synthesis of γ- and δ-Lactones. Org Lett 2020; 22:818-822. [PMID: 31961159 DOI: 10.1021/acs.orglett.9b04253] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A highly efficient asymmetric hydrogenation of γ- and δ-ketoacids was developed by using a chiral spiro iridium catalyst (S)-1a, affording the optically active γ- and δ-hydroxy acids/lactones in high yields with excellent enantioselectivities (up to >99% ee) and turnover numbers (TON up to 100000). This protocol provides an efficient and practical method for enantioselective synthesis of Ezetimibe.
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Affiliation(s)
- Yun-Yu Hua
- Zhejiang Raybow Pharmaceutical Co., Ltd. , No. 18 Nanyangsan Road , Linhai, Taizhou City , Zhejiang Province 318000 , People's Republic of China
| | - Huai-Yu Bin
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , People's Republic of China
| | - Tao Wei
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , People's Republic of China
| | - Hou-An Cheng
- Zhejiang Raybow Pharmaceutical Co., Ltd. , No. 18 Nanyangsan Road , Linhai, Taizhou City , Zhejiang Province 318000 , People's Republic of China
| | - Zu-Peng Lin
- Zhejiang Raybow Pharmaceutical Co., Ltd. , No. 18 Nanyangsan Road , Linhai, Taizhou City , Zhejiang Province 318000 , People's Republic of China
| | - Xing-Feng Fu
- Zhejiang Raybow Pharmaceutical Co., Ltd. , No. 18 Nanyangsan Road , Linhai, Taizhou City , Zhejiang Province 318000 , People's Republic of China
| | - Yuan-Qiang Li
- Zhejiang Raybow Pharmaceutical Co., Ltd. , No. 18 Nanyangsan Road , Linhai, Taizhou City , Zhejiang Province 318000 , People's Republic of China
| | - Jian-Hua Xie
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , People's Republic of China
| | - Pu-Cha Yan
- Zhejiang Raybow Pharmaceutical Co., Ltd. , No. 18 Nanyangsan Road , Linhai, Taizhou City , Zhejiang Province 318000 , People's Republic of China
| | - Qi-Lin Zhou
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , People's Republic of China
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15
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Koszelewski D, Borys F, Brodzka A, Ostaszewski R. Synthesis of Enantiomerically Pure 5,6-Dihydropyran-2-ones via Chemoenzymatic Sequential DKR-RCM Reaction. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801819] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dominik Koszelewski
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Filip Borys
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Anna Brodzka
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Ryszard Ostaszewski
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
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16
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Gupta E, Zaheer MK, Kant R, Mohanan K. Additive-free regio- and diastereoselective construction of fully-substituted isoxazolidines employing diazo compounds. Org Chem Front 2019. [DOI: 10.1039/c8qo01421c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
An efficient additive-free three-component access to densely functionalized isoxazolidines using diazo compounds, nitrosoarene, and allenic esters has been uncovered.
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Affiliation(s)
- Ekta Gupta
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Mohd Khalid Zaheer
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Ruchir Kant
- Molecular and Structural Biology Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Kishor Mohanan
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
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17
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Wang ZH, Zhang XY, Lei CW, Zhao JQ, You Y, Yuan WC. Highly enantioselective sequential vinylogous aldol reaction/transesterification of methyl-substituted olefinic butyrolactones with isatins for the construction of chiral spirocyclic oxindole-dihydropyranones. Chem Commun (Camb) 2019; 55:9327-9330. [DOI: 10.1039/c9cc04427b] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A highly stereoselective sequential vinylogous aldol reaction/transesterification of methyl-substituted olefinic butyrolactones and isatins was developed with 10 mol% Takemoto's amine–thiourea catalyst.
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Affiliation(s)
- Zhen-Hua Wang
- Institute for Advanced Study
- Chengdu University
- Chengdu 610106
- China
| | - Xia-Yan Zhang
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Chuan-Wen Lei
- National Engineering Research Center of Chiral Drugs
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Jian-Qiang Zhao
- Institute for Advanced Study
- Chengdu University
- Chengdu 610106
- China
| | - Yong You
- Institute for Advanced Study
- Chengdu University
- Chengdu 610106
- China
| | - Wei-Cheng Yuan
- Institute for Advanced Study
- Chengdu University
- Chengdu 610106
- China
- National Engineering Research Center of Chiral Drugs
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18
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19
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Zhang HJ, Yin L. Asymmetric Synthesis of α,β-Unsaturated δ-Lactones through Copper(I)-Catalyzed Direct Vinylogous Aldol Reaction. J Am Chem Soc 2018; 140:12270-12279. [DOI: 10.1021/jacs.8b07929] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Hai-Jun Zhang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Liang Yin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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20
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Zheng Z, Cao Y, Chong Q, Han Z, Ding J, Luo C, Wang Z, Zhu D, Zhou QL, Ding K. Chiral Cyclohexyl-Fused Spirobiindanes: Practical Synthesis, Ligand Development, and Asymmetric Catalysis. J Am Chem Soc 2018; 140:10374-10381. [PMID: 30036064 DOI: 10.1021/jacs.8b07125] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
1,1'-Spirobiindane has been one type of privileged skeleton for chiral ligand design, and 1,1'-spirobiindane-based chiral ligands have demonstrated outstanding performance in various asymmetric catalysis. However, the access to enantiopure spirobiindane is quite tedious, which obstructs its practical application. In the present article, a facile enantioselective synthesis of cyclohexyl-fused chiral spirobiindanes has been accomplished, in high yields and excellent stereoselectivities (up to >99% ee), via a sequence of Ir-catalyzed asymmetric hydrogenation of α,α'-bis(arylidene)ketones and TiCl4 promoted asymmetric spiroannulation of the hydrogenated chiral ketones. The protocol can be performed in one pot and is readily scalable, and has been utilized in a 25 g scale asymmetric synthesis of cyclohexyl-fused spirobiindanediol (1 S,2 S,2' S)-5, in >99% ee and 67% overall yield for four steps without chromatographic purification. Facile derivations of (1 S,2 S,2' S)-5 provided straightforward access to chiral monodentate phosphoramidites 6a-c and a tridentate phosphorus-amidopyridine 11, which were evaluated as chiral ligands in several benchmark enantioselective reactions (hydrogenation, hydroacylation, and [2 + 2] reaction) catalyzed by transition metal (Rh, Au, or Ir). Preliminary results from comparative studies showcased the excellent catalytic performances of these ligands, with a competency essentially equal to the corresponding well-established privileged ligands bearing a regular spirobiindane backbone. X-ray crystallography revealed a close resemblance between the structures of the precatalysts 20 and 21 and their analogues, which ultimately help to rationalize the almost identical stereochemical outcomes of reactions catalyzed by metal complexes of spirobiindane-derived ligands with or without a fused cyclohexyl ring on the backbone. This work is expected to stimulate further applications of this type of readily accessible skeletons in development of chiral ligands and functional molecules.
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Affiliation(s)
- Zhiyao Zheng
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
| | - Yuxi Cao
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China.,Department of Chemistry , Northeast Normal University , Changchun 130024 , China
| | - Qinglei Chong
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China.,Collaborative Innovation Center of Chemical Science and Engineering , Nankai University , Tianjin 300071 , China
| | - Zhaobin Han
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
| | - Jiaming Ding
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
| | - Chenguang Luo
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
| | - Zheng Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
| | - Dongsheng Zhu
- Department of Chemistry , Northeast Normal University , Changchun 130024 , China
| | - Qi-Lin Zhou
- State Key Laboratory and Institute of Elemento-Organic Chemistry , Nankai University , Tianjin 300071 , China.,Collaborative Innovation Center of Chemical Science and Engineering , Nankai University , Tianjin 300071 , China
| | - Kuiling Ding
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China.,Collaborative Innovation Center of Chemical Science and Engineering , Nankai University , Tianjin 300071 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
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21
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Koszelewski D, Paprocki D, Brodzka A, Ostaszewski R. Enzyme mediated kinetic resolution of δ-hydroxy-α,β-unsaturated esters as a route to optically active δ-lactones. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.tetasy.2017.05.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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22
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Formal synthesis of Thienamycin. J Antibiot (Tokyo) 2017; 70:781-787. [PMID: 28377636 DOI: 10.1038/ja.2017.44] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 01/23/2017] [Accepted: 03/03/2017] [Indexed: 11/08/2022]
Abstract
A formal synthesis of Thienamycin from ethyl (E)-crotonate and a cyclic five-membered nitrone derived from 2-deoxy-d-ribose is described. The synthesis involves 1,3-dipolar cycloaddition, cleavage of the N-O bond in the adduct, and intramolecular N-acylation to afford a bicyclic carbapenam skeleton. Subsequent transformations of the five-membered ring substituents provide the title compound.
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23
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Goyal S, Thakur A, Sharma R, Gangar M, Patel B, Nair VA. Stereoselective Alkylation of Imines and its Application towards the Synthesis of β-Lactams. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600339] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Sandeep Goyal
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research; Sector 67 S.A.S. Nagar Punjab 160062 India
| | - Anamika Thakur
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research; Sector 67 S.A.S. Nagar Punjab 160062 India
| | - Ratnesh Sharma
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research; Sector 67 S.A.S. Nagar Punjab 160062 India
| | - Mukesh Gangar
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research; Sector 67 S.A.S. Nagar Punjab 160062 India
| | - Bhautikkumar Patel
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research; Sector 67 S.A.S. Nagar Punjab 160062 India
| | - Vipin A. Nair
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research; Sector 67 S.A.S. Nagar Punjab 160062 India
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24
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Pieczykolan M, Staszewska-Krajewska O, Furman B, Chmielewski M. 1,3-Dipolar cycloaddition of a cyclic nitrone derived from 2-deoxy-D-ribose to α,β-unsaturated lactones: An entry to carbapenem antibiotics. Carbohydr Res 2016; 433:89-96. [PMID: 27471832 DOI: 10.1016/j.carres.2016.07.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 06/20/2016] [Accepted: 07/02/2016] [Indexed: 11/28/2022]
Abstract
1,3-Dipolar cycloadditions of 2-deoxy-D-ribose-derived L-threo five-membered cyclic nitrone to α,β-unsaturated γ- and δ-lactones were investigated. Cycloadducts obtained from δ-lactones, after NO bond cleavage, opening of the lactone ring, and protection of hydroxyl groups were subjected to β-lactam ring formation by using Mukaiyama's salt. Cycloadducts from γ-lactones subjected to the same reaction sequence undergo β-elimination of a water molecule to provide pyrrolidine-substituted unsaturated γ-lactones.
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Affiliation(s)
- Michał Pieczykolan
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | | | - Bartłomiej Furman
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Marek Chmielewski
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
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25
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Zhu Y, Pan J, Zhang S, Liu Z, Ye D, Zhou W. Efficient and scalable process for the synthesis of antihypercholesterolemic drug ezetimibe. SYNTHETIC COMMUN 2016. [DOI: 10.1080/00397911.2016.1221969] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Yijun Zhu
- State Key Laboratory of New Drug and Pharmaceutical Process, Shanghai Key Laboratory of Anti-infectives, State Institute of Pharmaceutical Industry, Shanghai, China
- School of Pharmacy, Fudan University, Shanghai, China
| | - Jing Pan
- State Key Laboratory of New Drug and Pharmaceutical Process, Shanghai Key Laboratory of Anti-infectives, State Institute of Pharmaceutical Industry, Shanghai, China
| | - Shunli Zhang
- State Key Laboratory of New Drug and Pharmaceutical Process, Shanghai Key Laboratory of Anti-infectives, State Institute of Pharmaceutical Industry, Shanghai, China
| | - Zhenren Liu
- State Key Laboratory of New Drug and Pharmaceutical Process, Shanghai Key Laboratory of Anti-infectives, State Institute of Pharmaceutical Industry, Shanghai, China
| | - Deyong Ye
- School of Pharmacy, Fudan University, Shanghai, China
| | - Weicheng Zhou
- State Key Laboratory of New Drug and Pharmaceutical Process, Shanghai Key Laboratory of Anti-infectives, State Institute of Pharmaceutical Industry, Shanghai, China
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26
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Humpl M, Tauchman J, Topolovčan N, Kretschmer J, Hessler F, Císařová I, Kotora M, Veselý J. Stereoselective Synthesis of Ezetimibe via Cross-Metathesis of Homoallylalcohols and α-Methylidene-β-Lactams. J Org Chem 2016; 81:7692-9. [DOI: 10.1021/acs.joc.6b01406] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marek Humpl
- Department of Organic Chemistry,
Faculty of Science and ‡Department of Inorganic Chemistry,
Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Praha 2, Czech Republic
| | - Jiří Tauchman
- Department of Organic Chemistry,
Faculty of Science and ‡Department of Inorganic Chemistry,
Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Praha 2, Czech Republic
| | - Nikola Topolovčan
- Department of Organic Chemistry,
Faculty of Science and ‡Department of Inorganic Chemistry,
Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Praha 2, Czech Republic
| | - Jan Kretschmer
- Department of Organic Chemistry,
Faculty of Science and ‡Department of Inorganic Chemistry,
Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Praha 2, Czech Republic
| | - Filip Hessler
- Department of Organic Chemistry,
Faculty of Science and ‡Department of Inorganic Chemistry,
Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Praha 2, Czech Republic
| | - Ivana Císařová
- Department of Organic Chemistry,
Faculty of Science and ‡Department of Inorganic Chemistry,
Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Praha 2, Czech Republic
| | - Martin Kotora
- Department of Organic Chemistry,
Faculty of Science and ‡Department of Inorganic Chemistry,
Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Praha 2, Czech Republic
| | - Jan Veselý
- Department of Organic Chemistry,
Faculty of Science and ‡Department of Inorganic Chemistry,
Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Praha 2, Czech Republic
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27
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Isoda M, Sato K, Kunugi Y, Tokonishi S, Tarui A, Omote M, Minami H, Ando A. Rh-Catalyzed reductive Mannich-type reaction and its application towards the synthesis of (±)-ezetimibe. Beilstein J Org Chem 2016; 12:1608-15. [PMID: 27559413 PMCID: PMC4979637 DOI: 10.3762/bjoc.12.157] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 07/06/2016] [Indexed: 12/02/2022] Open
Abstract
An effective synthesis for syn-β-lactams was achieved using a Rh-catalyzed reductive Mannich-type reaction. A rhodium–hydride complex (Rh–H) derived from diethylzinc (Et2Zn) and a Rh catalyst was used for the 1,4-reduction of an α,β-unsaturated ester to give a Reformatsky-type reagent, which in turn, reacted with an imine to give the syn-β-lactam. Additionally, the reaction was applied to the synthesis of (±)-ezetimibe, a potent β-lactamic cholesterol absorption inhibitor.
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Affiliation(s)
- Motoyuki Isoda
- Faculty of Pharmaceutical Sciences, Setsunan University 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Kazuyuki Sato
- Faculty of Pharmaceutical Sciences, Setsunan University 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Yurika Kunugi
- Faculty of Pharmaceutical Sciences, Setsunan University 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Satsuki Tokonishi
- Faculty of Pharmaceutical Sciences, Setsunan University 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Atsushi Tarui
- Faculty of Pharmaceutical Sciences, Setsunan University 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Masaaki Omote
- Faculty of Pharmaceutical Sciences, Setsunan University 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Hideki Minami
- Faculty of Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
| | - Akira Ando
- Faculty of Pharmaceutical Sciences, Setsunan University 45-1, Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
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28
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Shimasaki Y, Koshino S, Hayashi Y. Formal Synthesis of Ezetimibe Using a Proline-mediated, Asymmetric, Three-component Mannich Reaction. CHEM LETT 2016. [DOI: 10.1246/cl.150916] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
| | - Seitaro Koshino
- Department of Chemistry, Graduate School of Science, Tohoku University
| | - Yujiro Hayashi
- Department of Chemistry, Graduate School of Science, Tohoku University
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29
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Yan T, Feringa BL, Barta K. Benzylamines via Iron-Catalyzed Direct Amination of Benzyl Alcohols. ACS Catal 2015. [DOI: 10.1021/acscatal.5b02160] [Citation(s) in RCA: 187] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tao Yan
- Stratingh Institute for Chemistry, University of Groningen, 9747 AG Groningen, The Netherlands
| | - Ben L. Feringa
- Stratingh Institute for Chemistry, University of Groningen, 9747 AG Groningen, The Netherlands
| | - Katalin Barta
- Stratingh Institute for Chemistry, University of Groningen, 9747 AG Groningen, The Netherlands
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30
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Anderson LL. Diverse Applications of Nitrones for the Synthesis of Heterocyclic Compounds. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500211] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Laura L. Anderson
- Department of Chemistry; University of Illinois at Chicago; Chicago IL 60607 USA
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31
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Bellur Atici E, Karlığa B. Identification, synthesis and characterization of process related desfluoro impurity of ezetimibe and HPLC method validations. J Pharm Anal 2015; 5:356-370. [PMID: 29403950 PMCID: PMC5762248 DOI: 10.1016/j.jpha.2015.04.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 04/13/2015] [Accepted: 04/14/2015] [Indexed: 11/26/2022] Open
Abstract
Ezetimibe, which selectively inhibits cholesterol absorption across the intestinal wall and is used as an antihyperlipidemic agent, is synthesized for commercial use as a drug substance in highly pure form. During the synthetic process development studies of ezetimibe, an impurity was detected in the final product at levels ranging from 0.05% to 0.15% in reverse phase gradient high performance liquid chromatography (HPLC) method and its molecular weight was determined by LC-MS analysis. The impurity was identified as (3R,4S)-3-((S)-3-(4-fluorophenyl)-3-hydroxypropyl)-4-(4-hydroxyphenyl)-1-phenylazetidin-2-one which is called desfluoro ezetimibe (lactam-related) impurity, synthesized and characterized, the mechanism of its formation was discussed in detail. After all standardization procedures, it was used as a reference standard during validation of HPLC method and routine analyses. In addition, content of Eze-1 desfluoro impurity in Eze-1 intermediates was specified as 0.10% to keep the formation of desfluoro ezetimibe impurity under control and the related substances HPLC method was validated accordingly.
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Affiliation(s)
- Esen Bellur Atici
- Deva Holding A.Ş., Çerkezköy-2 Production Plant, Karaağaç Mh. Fatih Blv. No: 26, Address No: 2278035833, Kapaklı, Tekirdağ, Turkey
| | - Bekir Karlığa
- Deva Holding A.Ş., Çerkezköy-2 Production Plant, Karaağaç Mh. Fatih Blv. No: 26, Address No: 2278035833, Kapaklı, Tekirdağ, Turkey
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32
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Szcześniak P, Maziarz E, Stecko S, Furman B. Synthesis of Polyhydroxylated Piperidine and Pyrrolidine Peptidomimetics via One-Pot Sequential Lactam Reduction/Joullié–Ugi Reaction. J Org Chem 2015; 80:3621-33. [DOI: 10.1021/acs.joc.5b00335] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Piotr Szcześniak
- Institute of Organic Chemistry, Polish Academy of Sciences Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Elżbieta Maziarz
- Institute of Organic Chemistry, Polish Academy of Sciences Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Sebastian Stecko
- Institute of Organic Chemistry, Polish Academy of Sciences Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Bartłomiej Furman
- Institute of Organic Chemistry, Polish Academy of Sciences Kasprzaka 44/52, 01-224 Warsaw, Poland
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33
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Tarui A, Tanaka A, Ueo M, Sato K, Omote M, Ando A. Synthesis of a fluorinated Ezetimibe analogue using radical allylation of α-bromo-α-fluoro-β-lactam. NEW J CHEM 2015. [DOI: 10.1039/c5nj01969a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile and efficient synthesis of a fluorinated Ezetimibe analogue was achieved by radical allylation, Wacker oxidation, and nucleophilic arylation of α-bromo-α-fluoro-β-lactam.
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Affiliation(s)
- Atsushi Tarui
- Faculty of Pharmaceutical Sciences
- Setsunan University
- Hirakata
- Japan
| | - Ayumi Tanaka
- Faculty of Pharmaceutical Sciences
- Setsunan University
- Hirakata
- Japan
| | - Masakazu Ueo
- Faculty of Pharmaceutical Sciences
- Setsunan University
- Hirakata
- Japan
| | - Kazuyuki Sato
- Faculty of Pharmaceutical Sciences
- Setsunan University
- Hirakata
- Japan
| | - Masaaki Omote
- Faculty of Pharmaceutical Sciences
- Setsunan University
- Hirakata
- Japan
| | - Akira Ando
- Faculty of Pharmaceutical Sciences
- Setsunan University
- Hirakata
- Japan
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34
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Chiral β-Lactam Synthesis through the Enantioselective Reduction of Iminocyclobutenones and the Thermal Rearrangement of Aminocyclobutenones. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201402005] [Citation(s) in RCA: 10] [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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35
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Five-Membered Ring Systems with O & N Atoms. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/b978-0-08-100017-5.00011-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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36
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Kirst HA. 13th International Conference on the Chemistry of Antibiotics and Other Bioactive Compounds (ICCA-13). J Antibiot (Tokyo) 2013; 67:269-72. [PMID: 24301186 DOI: 10.1038/ja.2013.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Accepted: 10/31/2013] [Indexed: 11/09/2022]
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