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Xu D, Du B, Ji Y, Sun H, Wang T, Yin X. Stereoselective transport of 2-aryl propionic acid enantiomers in porous media subjected to chiral organic acids. JOURNAL OF HAZARDOUS MATERIALS 2024; 468:133824. [PMID: 38377915 DOI: 10.1016/j.jhazmat.2024.133824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/31/2024] [Accepted: 02/16/2024] [Indexed: 02/22/2024]
Abstract
The study examined the transport behavior of the 2-aryl propionic acid (2-APA) chiral pharmaceutical enantiomers by means of a laboratory-scale saturated quartz sand column experiment. Four typical of 2-APA and their enantiomers were selected for the study under different types of chiral organic acids (COAs)-mediated effects. Differences in the transport of the 2-APA enantiomeric pairs have been identified in response to various pH, types of COAs, and enantiomeric structures of COAs. Redundancy analysis identified the factors responsible for the largest differences in transport of 2-APA enantiomeric pairs, while spectroscopic characterization and density function theory (DFT) studies elucidated the underlying mechanisms contributing to the differences in transport of enantiomeric pairs. Obvious correlations among homochirality or heterochirality between COAs and 2-APA enantiomeric pairs were observed for changes in the mobility of 2-APA. The results indicate widespread COAs significantly affect the transport behavior of chiral man-made chemicals, suggesting more attention is needed to fill the gap in the perception of the transport behavior of chiral compounds.
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Affiliation(s)
- Duo Xu
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, PR China
| | - Bowen Du
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, PR China
| | - Yantian Ji
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, PR China
| | - Huimin Sun
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling Shaanxi, 712100, PR China
| | - Tiecheng Wang
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, PR China
| | - Xianqiang Yin
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling Shaanxi, 712100, PR China.
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2
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Tilly DP, McColl C, Hu M, Vitórica-Yrezábal IJ, Webb SJ. Enantioselective conjugate addition to nitroolefins catalysed by helical peptides with a single remote stereogenic centre. Org Biomol Chem 2023; 21:9562-9571. [PMID: 38009076 DOI: 10.1039/d3ob01594g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2023]
Abstract
Two short pentapeptides rich in α-aminoisobutyric acid (Aib) residues have been shown to act as enantioselective organocatalysts for the conjugate addition of nucleophiles to nitroolefins. An L-alanine terminated peptide, (Aib)4(L-Ala)NHtBu, which has neither functionalised sidechains nor a highly designed reactive site, used an exposed N-terminal primary amine and the amide bonds of the backbone to mediate catalysis. Folding of this peptide into a 310 helical structure was observed by crystallography. Folding into a helix relays the conformational preference of the chiral alanine residue at the C-terminus to the primary amine at the N-terminus, 0.9 nm distant. The chiral environment and defined shape produced by the 310 helix brings the amine site into proximity to two exposed amide NHs. Reaction scope studies implied that the amine acts as a Brønsted base and the solvent-exposed NH groups of the helix, shown to weakly bind β-nitrostyrene, are needed to obtain an enantiomeric excess. Replacement of L-alanine with D-phenylalanine gave (Aib)4(D-Phe)NHtBu, a peptide that now catalysed the benchmark reaction with the opposite enantioselectivity. These studies show how achiral residues can play a key role in enantioselective catalysis by peptides through the promotion of folding.
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Affiliation(s)
- David P Tilly
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK.
- Manchester Institute of Biotechnology, University of Manchester, 131 Princess Street, Manchester M1 7DN, UK
| | - Catherine McColl
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK.
- Manchester Institute of Biotechnology, University of Manchester, 131 Princess Street, Manchester M1 7DN, UK
| | - Mingda Hu
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK.
- Manchester Institute of Biotechnology, University of Manchester, 131 Princess Street, Manchester M1 7DN, UK
| | | | - Simon J Webb
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK.
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3
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Zhang Z, Sui A, Zhang X, Wang X, He X, Zhang B, Wu H. Organocatalytic Asymmetric Vinylogous Michael Addition of Electron-Deficient Aryl Alkane Nucleophiles to Enals. J Org Chem 2023. [PMID: 38015566 DOI: 10.1021/acs.joc.3c01232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
We report herein a protocol for an organocatalyzed asymmetric vinylogous Michael addition of aryl alkane nucleophiles with enals under base- and additive-free conditions. A series of allylic building blocks were obtained in 60%-93% yield and 88-99% ee with 20 mol % diphenylprolinol silyl ether as catalyst. This protocol has advantages such as excellent chemoselectivity and regioselectivity, good tolerance of functionalities, and simple reaction conditions.
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Affiliation(s)
- Zhiguang Zhang
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Ao Sui
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Xiaomin Zhang
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Xu Wang
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Xinyi He
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
| | - Bingzhu Zhang
- Hebei Chemical and Pharmaceutical College, Shijiazhuang 050026, China
| | - Haixia Wu
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
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Yarovaya OI, Baranova DV, Sokolova AS, Nemolochnova AG, Sal’nikova OP, Fat’anova AV, Rogachev AD, Volobueva AS, Zarubaev VV, Pokrovsky AG, Salakhutdinov NF. Synthesis of N-heterocyclic amides based on (+)-camphoric acid and study of their antiviral activity and pharmacokinetics. Russ Chem Bull 2023; 72:807-818. [PMID: 37089866 PMCID: PMC10105540 DOI: 10.1007/s11172-023-3845-9] [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: 12/08/2022] [Revised: 01/27/2023] [Accepted: 01/29/2023] [Indexed: 04/25/2023]
Abstract
Efficient conditions for the synthesis of nitrogen-containing heterocyclic derivatives of (1R,3S)(+)-camphoric acid were selected. A series of heterocyclic compounds based on (+)-camphoric acid bearing pharmacophoric fragments was synthesized using the developed methodology. The compounds were tested for their antiviral activity against SARS-CoV-2 and H1N1 influenza viruses, and efficient inhibitors were identified that are of significant interest for further studies. The stability of the compounds and pharmaco-kinetics of the leader compound were studied when administered intragastrically and intramuscularly to mice at a dose of 200 mg kg-1 using the HPLC-MS/MS method.
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Affiliation(s)
- O. I. Yarovaya
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 9 prosp. Akademika Lavrent’eva, 630090 Novosibirsk, Russian Federation
- Novosibirsk State University, 2 ul. Pirogova, 630090 Novosibirsk, Russian Federation
| | - D. V. Baranova
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 9 prosp. Akademika Lavrent’eva, 630090 Novosibirsk, Russian Federation
| | - A. S. Sokolova
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 9 prosp. Akademika Lavrent’eva, 630090 Novosibirsk, Russian Federation
| | - A. G. Nemolochnova
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 9 prosp. Akademika Lavrent’eva, 630090 Novosibirsk, Russian Federation
- Novosibirsk State University, 2 ul. Pirogova, 630090 Novosibirsk, Russian Federation
| | - O. P. Sal’nikova
- Novosibirsk State University, 2 ul. Pirogova, 630090 Novosibirsk, Russian Federation
| | - A. V. Fat’anova
- Novosibirsk State University, 2 ul. Pirogova, 630090 Novosibirsk, Russian Federation
| | - A. D. Rogachev
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 9 prosp. Akademika Lavrent’eva, 630090 Novosibirsk, Russian Federation
- Novosibirsk State University, 2 ul. Pirogova, 630090 Novosibirsk, Russian Federation
| | - A. S. Volobueva
- Pasteur Institute of Epidemiology and Microbiology, 14 ul. Mira, 197101 St. Petersburg, Russian Federation
| | - V. V. Zarubaev
- Pasteur Institute of Epidemiology and Microbiology, 14 ul. Mira, 197101 St. Petersburg, Russian Federation
| | - A. G. Pokrovsky
- Novosibirsk State University, 2 ul. Pirogova, 630090 Novosibirsk, Russian Federation
| | - N. F. Salakhutdinov
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 9 prosp. Akademika Lavrent’eva, 630090 Novosibirsk, Russian Federation
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Cheng H, Yan D, Wu L, Liang P, Cai Y, Li L. Chemical characterization, absolute configuration and optical purity of (1S)-(+)- and (1R)-(-)-10-camphorsulfonic acid. Acta Crystallogr C Struct Chem 2022; 78:531-541. [PMID: 36196786 DOI: 10.1107/s2053229622008592] [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: 07/26/2022] [Accepted: 08/26/2022] [Indexed: 11/11/2022] Open
Abstract
Comprehensive chemical characterization for two isomers of camphorsulfonic acid (CSA), occasionally used in the manufacture of active pharmaceutical ingredients (APIs), was performed by nuclear magnetic resonance (NMR) spectroscopy, high-resolution mass spectroscopy in negative electrospray ionization mode and gas chromatography/mass spectrometry (GC/MS) in electron ionization mode. Electronic circular dichroism (ECD) spectra together with quantum chemical calculations using time-dependent density functional theory (TD-DFT) were used to assign the stereochemistry for CSA for the first time and these assignments were then confirmed by single-crystal X-ray diffraction. As crystals were grown under the same conditions of high supersaturation using a mixed solvent without water removal, the crystal structures of the two enantiomers contained one ordered molecule of water in the asymmetric unit. The crystals of the (+)-enantiomer have a 1S,4R configuration and the H atom of the sulfonic acid group combines with the water molecule to form a hydronium ion, namely, hydronium (1S,4R)-(7,7-dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonate, H3O+·C10H15O4S-. The crystals of the (-)-enantiomer have a 1R,4S configuration. The determination of the optical purity of CSA using NMR spectroscopy with a chiral solvating agent, (1R,2R)-1,2-diphenylethane-1,2-diamine, and GC/MS with a chiral column has been well explored. The results showed that the examined samples of these two isomers of CSA proved to be enantiomerically pure. In particular, for (1R)-(-)-10-camphorsulfonic acid, this is, to our knowledge, the first description on its spectral characterization in a scientific context.
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Affiliation(s)
- Hong Cheng
- Analytical and Testing Center, Huazhong University of Science and Technology, 430074 Wuhan, Hubei Province, People's Republic of China
| | - Dingce Yan
- Analytical and Testing Center, Huazhong University of Science and Technology, 430074 Wuhan, Hubei Province, People's Republic of China
| | - Liqing Wu
- National Institute of Metrology, 100029 Beijing, People's Republic of China
| | - Ping Liang
- Analytical and Testing Center, Huazhong University of Science and Technology, 430074 Wuhan, Hubei Province, People's Republic of China
| | - Yuncheng Cai
- Analytical and Testing Center, Huazhong University of Science and Technology, 430074 Wuhan, Hubei Province, People's Republic of China
| | - Li Li
- Beijing Key Laboratory of Active Substances Discovery and Druggability, Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, 100050 Beijing, People's Republic of China
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Babkova M, Wilhelm R. On the Influence of a Camphor‐based 1,3‐Diamine Fragment in a Proline‐Based Organocatalyst. ChemistrySelect 2022. [DOI: 10.1002/slct.202201313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mariia Babkova
- Institute of Organic Chemistry Clausthal University of Technology Leibnizstr. 6 38678 Clausthal-Zellerfeld Germany
| | - Rene Wilhelm
- Institute of Organic Chemistry Clausthal University of Technology Leibnizstr. 6 38678 Clausthal-Zellerfeld Germany
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