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Kiełbasiński P, Kwiatkowska M, Łyżwa P, Mikołajczyk M. Towards Chemoenzymatic Syntheses of Both Enantiomers of Phosphoemeriamine. Molecules 2024; 29:1799. [PMID: 38675619 PMCID: PMC11154567 DOI: 10.3390/molecules29081799] [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: 03/17/2024] [Revised: 04/10/2024] [Accepted: 04/13/2024] [Indexed: 04/28/2024] Open
Abstract
An enzyme-promoted addition of nitromethane to the appropriate phosphorylated imine (aza-Henry reaction) intended to be used in the synthesis of the title phosphoemeriamine, a phospha-analog of emeriamine (aminocarnitine), failed due to the tautomerization of the imine to the corresponding enamine. Nevertheless, both enantiomers of phosphoemeriamine were synthesized in high yield and enantiomeric purity using another chemoenzymatic approach, starting with a crucial step involving a CAL-B-mediated acetylation of the appropriate racemic precursor-diethyl 2-amino-3-dimethylaminopropylphosphonate-under kinetic resolution conditions. The enzymatic reaction was very efficient and provided each enantiomeric product in acceptable yield and with enantiomeric excess of 91 and 92%. The following appropriate chemical transformations led to the desired enantiomers of phosphoemeriamine in the form of phosphoemeriamine sesquichloride with enantiomeric excess up to 90%.
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Affiliation(s)
- Piotr Kiełbasiński
- Division of Organic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łódź, Poland; (M.K.); (P.Ł.); (M.M.)
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Shu L, Zheng X, Qi S, Lin S, Lu Y, Yao C, Ling X. Transesterification of phosphatidylcholine with DHA-rich algal oil using immobilized Candida antarctica lipase B to produce DHA-phosphatidylcholine. Enzyme Microb Technol 2023; 169:110266. [PMID: 37311283 DOI: 10.1016/j.enzmictec.2023.110266] [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: 02/27/2023] [Revised: 05/18/2023] [Accepted: 05/30/2023] [Indexed: 06/15/2023]
Abstract
Docosahexaenoic acid (DHA) enriched with phospholipids (PLs) (DHA-PLs) is a type of structured PL with good physicochemical and nutritional properties. Compared to PLs and DHA, DHA-PLs has higher bioavailability and structural stability and many nutritional benefits. To improve the enzymatic synthesis of DHA-PLs, this study investigated the preparation of phosphatidylcholine (PC) enriched with DHA (DHA-PC) via enzymatic transesterification of algal oil, which is rich in DHA-triglycerides, using immobilized Candida antarctica lipase B (CALB). The optimized reaction system incorporated 31.2% DHA into the acyl chain of PC and converted 43.6% PC to DHA-PC within 72 h at 50 °C, 1:8 PC: algal oil mass ratio, 25% enzyme load (based on total substrate mass), and 0.02 g/mL molecular sieve concentration. Consequently, the side reactions of PC hydrolysis were effectively suppressed and products with high PC content (74.8%) were produced. Molecular structure analysis showed that exogenous DHA was specifically incorporated into the sn-1 site of the PC by immobilized CALB. Furthermore, the evaluation of reusability with eight cycles showed that the immobilized CALB had good operational stability in the present reaction system. Collectively, this study demonstrated the applicability of immobilized CALB as a biocatalyst for synthesizing DHA-PC and provided an improved enzyme-catalyzed method for future DHA-PL synthesis.
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Affiliation(s)
- Liwen Shu
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, PR China
| | - Xin Zheng
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, PR China
| | - Shuhua Qi
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, PR China
| | - Shuizhi Lin
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, PR China
| | - Yinghua Lu
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, PR China; Xiamen Key Laboratory of Synthetic Biotechnology, Xiamen University, Xiamen, PR China; The Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen, PR China.
| | - Chuanyi Yao
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, PR China; Xiamen Key Laboratory of Synthetic Biotechnology, Xiamen University, Xiamen, PR China
| | - Xueping Ling
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, PR China; Xiamen Key Laboratory of Synthetic Biotechnology, Xiamen University, Xiamen, PR China.
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He L, Zheng J, Feng S, Xu L, Zhong N. Immobilization of Candida antarctica Lipase A onto Macroporous Resin NKA-9: Esterification and Glycerolysis Performance Study. J Oleo Sci 2022; 71:1337-1348. [PMID: 36047241 DOI: 10.5650/jos.ess22028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In this study, lipase A from Candida antarctica (CALA) was immobilized onto the macroporous resin NKA-9. Immobilization conditions (pH, time and CALA concentration) were studied, enzymatic activity and immobilization efficiency (IE) up to 968.89 U/g and 53.19% were respectively obtained under optimal conditions (immobilization pH 5.0, time 5 h and CALA concentration at 30 mg/mL). Then, the NKA-9 supported CALA (CALA@NKA-9) samples were used to catalyze glycerolysis in solvent-free system. With 0.25 g of the present CALA@NKA-9 (soybean oil 3.52 g and glycerol 0.184 g) and after 12 h reaction at 50 °C, diacylglycerols (DAG) content up to 64.37% and triacylglycerols (TAG) conversion at 83.33% were obtained. The relationship between temperature and TAG conversion was LnV 0 = 13.9310-6.4212/T for CALA@NKA-9. Meanwhile, the activation energy (Ea) of CALA@NKA-9 was calculated to be 53.39 kJ/mol. In addition, reusability in the glycerolysis reaction was also evaluated, and 57.82% of the initial glycerolysis activity was retained after 9 consecutive applications. Furthermore, the CALA@NKA-9 was also used to catalyze the esterification (esterification of fatty acids with glycerol), however, the present CALA@NKA-9 cannot initiate the esterification. Therefore, the present CALA@NKA-9 is shown to be potential for DAG production through glycerolysis reaction.
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Affiliation(s)
- Lihong He
- School of Food Science, Guangdong Pharmaceutical University
| | - Jiawei Zheng
- School of Food Science, Guangdong Pharmaceutical University
| | - Siting Feng
- School of Food Science, Guangdong Pharmaceutical University
| | - Li Xu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University.,Guangdong Pharmaceutical University-University of Hong Kong Joint Biomedical Innovation Platform
| | - Nanjing Zhong
- School of Food Science, Guangdong Pharmaceutical University
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Guimarães JR, Carballares D, Rocha-Martin J, Tardioli PW, Fernandez-Lafuente R. Stabilization of immobilized lipases by treatment with metallic phosphate salts. Int J Biol Macromol 2022; 213:43-54. [DOI: 10.1016/j.ijbiomac.2022.05.167] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 01/10/2023]
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Chałupka J, Sikora A, Kozicka A, Marszałł MP. Overview: Enzyme-catalyzed Enantioselective Biotransformation of Chiral Active Compounds Used in Hypertension Treatment. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824999201020204256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Enzymatic kinetic resolution is one of the methods which allows for the synthesis
of enantiomerically pure various active pharmaceutical ingredients. In contrast to chemical
routes, enzymatic reactions have characteristics, including mild reaction conditions, a few byproducts,
and relatively high activity of the used enzymes. β-adrenolytic drugs are widely
used in the treatment of hypertension and cardiovascular disorders. Due to the fact that β-
blockers possess an asymmetric carbon atom in their structure, they are presented in two
enantiomeric forms. It was reported by many studies that only the (S)-enantiomers of these
drugs possess the desired therapeutic effect, whereas the administration of the racemate may
cause dangerous side effects, such as bronchoconstriction or diabetes. Nevertheless, β-
blockers are still commercially available drugs mainly used in medicine as racemates, whereas there are several
methods that are widely used in order to obtain enantiomerically pure compounds.
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Affiliation(s)
- Joanna Chałupka
- Department of Medicinal Chemistry, Collegium Medicum in Bydgoszcz, Faculty of Pharmacy, Nicolaus Copernicus University in Toruń, Dr. A. Jurasza 2, 85-089 Bydgoszcz, Poland
| | - Adam Sikora
- Department of Medicinal Chemistry, Collegium Medicum in Bydgoszcz, Faculty of Pharmacy, Nicolaus Copernicus University in Toruń, Dr. A. Jurasza 2, 85-089 Bydgoszcz, Poland
| | - Aleksandra Kozicka
- Department of Medical Genetics, University in Cambridge, Lv 6 Addenbrooke’s Treatment Centre, Cambridge, United Kingdom
| | - Michał Piotr Marszałł
- Department of Medicinal Chemistry, Collegium Medicum in Bydgoszcz, Faculty of Pharmacy, Nicolaus Copernicus University in Toruń, Dr. A. Jurasza 2, 85-089 Bydgoszcz, Poland
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