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Bartáček J, Chlumský K, Mrkvička J, Paloušová L, Sedlák M, Drabina P. Evaluation of the enantioselectivity of new chiral ligands based on imidazolidin-4-one derivatives. Beilstein J Org Chem 2024; 20:684-691. [PMID: 38590532 PMCID: PMC10999975 DOI: 10.3762/bjoc.20.62] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 03/14/2024] [Indexed: 04/10/2024] Open
Abstract
The new chiral ligands I-III based on derivatives of imidazolidin-4-one were synthesised and characterised. The catalytic activity and enantioselectivity of their corresponding copper(II) complexes were studied in asymmetric Henry reactions. It was found that the enantioselectivity of these catalysts is overall very high and depends on the relative configuration of the ligand used; cis-configuration of ligand affords the nitroaldols with major enantiomer S- (up to 97% ee), whereas the application of ligands with trans-configuration led to nitroaldols with major R-enantiomer (up to 96% ee). The "proline-type" ligand IV was also tested in asymmetric aldol reactions. Under the optimised reaction conditions, aldol products with enantioselectivities of up to 91% ee were obtained.
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Affiliation(s)
- Jan Bartáček
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Karel Chlumský
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Jan Mrkvička
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Lucie Paloušová
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Miloš Sedlák
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Pavel Drabina
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
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Pan B, Huang DM, Sun HT, Song SN, Su XB. Heterocyclic Boron Acid Catalyzed Dehydrative Amidation of Aliphatic/Aromatic Carboxylic Acids with Amines. J Org Chem 2023. [PMID: 36791405 DOI: 10.1021/acs.joc.2c02515] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
A commercially available and versatile dehydrative amidation catalyst, featuring a thianthrene boron acid structure, has been developed. The catalyst shows high catalytic activity to both aliphatic and less reactive aromatic carboxylic acid substrates, including several bioactive or clinical molecules with a carboxylic acid group.
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Affiliation(s)
- Bin Pan
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Shouguang 262700, China
| | - Ding-Min Huang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Hao-Tian Sun
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Sheng-Nan Song
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Xian-Bin Su
- State Key Laboratory of Material-Oriented Chemical Engineering and College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
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Mladentsev DY, Kuznetsova EN, Skvortsova MN, Dashkin RR. Review on Synthetic Approaches toward Rivaroxaban (Xarelto), an Anticoagulant Drug. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.2c00188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dmitry Y. Mladentsev
- Mendeleev Engineering Center, Mendeleev University of Chemical Technology, Moscow 125047, Russia
| | - Ekaterina N. Kuznetsova
- Division of Chemistry and Technology of Organic Synthesis, Department of Chemistry and Technology of Biomedical Preparations, Mendeleev University of Chemical Technology, Moscow 125047, Russia
| | - Maria N. Skvortsova
- Division of Chemistry and Technology of Organic Synthesis, Department of Chemistry and Technology of Biomedical Preparations, Mendeleev University of Chemical Technology, Moscow 125047, Russia
| | - Ratmir R. Dashkin
- Division of Chemistry and Technology of Organic Synthesis, Department of Chemistry and Technology of Biomedical Preparations, Mendeleev University of Chemical Technology, Moscow 125047, Russia
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Vrbický M, Macek K, Pochobradský J, Svoboda J, Sedlák M, Drabina P. The asymmetric Henry reaction as synthetic tool for the preparation of the drugs linezolid and rivaroxaban. Beilstein J Org Chem 2022; 18:438-445. [PMID: 35529894 PMCID: PMC9039528 DOI: 10.3762/bjoc.18.46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 04/05/2022] [Indexed: 11/23/2022] Open
Abstract
The human drugs – the antibiotic linezolid (1) and the anticoagulant rivaroxaban (2) – belong among modern pharmaceutics, which contain an oxazolidine-2-one moiety bearing a stereogenic center. The chirality of these drugs is a fundamental attribute for their biological activity. Herein, one of the efficient asymmetric syntheses of these drugs was studied in detail. Highly enantioselective catalysts were tested in the key step of the synthetic procedure, i.e., the asymmetric Henry reaction, under different reaction conditions, using several starting aldehydes. The corresponding nitroaldols as chiral intermediates in the syntheses of these drugs were obtained in high yields and enantiomeric excesses of up to 91% ee.
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Affiliation(s)
- Martin Vrbický
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Karel Macek
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Jaroslav Pochobradský
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Jan Svoboda
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Miloš Sedlák
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Pavel Drabina
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
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Zhu F, Shen J, Olimjonov S, Yang X, Liu Y, Odilov A, Qin H, Hu T, Mirzaakhmedov S, Xie Y. An Improved and Practical Synthesis of Rivaroxaban. HETEROCYCLES 2022. [DOI: 10.3987/com-22-14707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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