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Otmar M, Gaálová J, Žitka J, Brožová L, Cuřínová P, Kohout M, Hovorka Š, Bara JE, Van der Bruggen B, Jirsák J, Izák P. Preparation of PSEBS membranes bearing (S)-(−)-methylbenzylamine as chiral selector. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2019.109381] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Ge L, Zhu Y, Qi Y, Chen Y, Yang K. Enantioseparation of racemic bupivacaine via ultrasonic-assisted diastereomeric crystallization using 12,14-dinitrodehydroabietic acid. ULTRASONICS SONOCHEMISTRY 2019; 55:256-261. [PMID: 30712856 DOI: 10.1016/j.ultsonch.2019.01.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 01/03/2019] [Accepted: 01/17/2019] [Indexed: 06/09/2023]
Abstract
12,14-Dinitrodehydroabietic acid (12,14-dinitroDHAA), a chiral acid obtained by the nitration of optical dehydroabietic acid (DHAA), was successfully employed as resolving agent. The resolution of racemic bupivacaine by ultrasonic-assisted diastereomeric crystallization in ethanol was investigated. The results indicated that ultrasonic-assist can well facilitate resolution of (R,S)-bupivacaine and a higher enantiomeric excess (ee) and yield was obtained for (S)-bupivacaine, and while without ultrasound, the ee value decreases by increasing the crystallization time. A Box-Behnken experimental design with four factors (amount of 12,14-dinitroDHAA, ethanol amount, ultrasonic power and crystallization temperature) combined with response surface methodology (RSM) was applied to explore resolution effects. A second-order polynomial equation was adequate to model the relationship between the ee (or yield) and the dependent variables. When maintaining a lower limit of 90% for the yield of (S)-bupivacaine, the optimal resolution conditions by RSM were 12,14-dinitroDHAA/bupivacaine molar ratio of 1.6, solvent/propranolol ratio of 16.5 mL/g, 63.2 W ultrasonic power and crystallization temperature of 0 °C, respectively. Under the optimal conditions, the experimental ee and yield of (S)-bupivacaine were 69.8% and 87.5%.
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Affiliation(s)
- Li Ge
- Department of Pharmaceutical Engineering, Medical College, Guangxi University, Nanning 530004, China
| | - Yi Zhu
- School of Chemistry & Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Yonghui Qi
- School of Chemistry & Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Yande Chen
- School of Chemistry & Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Kedi Yang
- Department of Pharmaceutical Engineering, Medical College, Guangxi University, Nanning 530004, China.
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Anteneh YS, Franco CMM. Whole Cell Actinobacteria as Biocatalysts. Front Microbiol 2019; 10:77. [PMID: 30833932 PMCID: PMC6387938 DOI: 10.3389/fmicb.2019.00077] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Accepted: 01/15/2019] [Indexed: 12/25/2022] Open
Abstract
Production of fuels, therapeutic drugs, chemicals, and biomaterials using sustainable biological processes have received renewed attention due to increasing environmental concerns. Despite having high industrial output, most of the current chemical processes are associated with environmentally undesirable by-products which escalate the cost of downstream processing. Compared to chemical processes, whole cell biocatalysts offer several advantages including high selectivity, catalytic efficiency, milder operational conditions and low impact on the environment, making this approach the current choice for synthesis and manufacturing of different industrial products. In this review, we present the application of whole cell actinobacteria for the synthesis of biologically active compounds, biofuel production and conversion of harmful compounds to less toxic by-products. Actinobacteria alone are responsible for the production of nearly half of the documented biologically active metabolites and many enzymes; with the involvement of various species of whole cell actinobacteria such as Rhodococcus, Streptomyces, Nocardia and Corynebacterium for the production of useful industrial commodities.
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Affiliation(s)
- Yitayal Shiferaw Anteneh
- College of Medicine and Public Health, Medical Biotechnology, Flinders University, Bedford Park, SA, Australia
- Department of Medical Microbiology, College of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
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Wu T, Zhu JX, Wei Q, Li P, Wang LB, Huang J, Wang JH, Tang LK, Wu LJ, Li C, Han WN. Preparative separation of four isomers of synthetic anisodamine by HPLC and diastereomer crystallization. Chirality 2018; 31:11-20. [DOI: 10.1002/chir.23026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 09/04/2018] [Accepted: 09/18/2018] [Indexed: 01/23/2023]
Affiliation(s)
- Tong Wu
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
| | - Jiu-Xin Zhu
- Department of Pharmacology, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
| | - Qian Wei
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
| | - Ping Li
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
| | - Li-Bo Wang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
| | - Jian Huang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
| | - Jin-Hui Wang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
| | - Li-Ke Tang
- Hangzhou Mingsheng Institutes for Pharma Research Co., Ltd.; Hangzhou People's Republic of China
| | - Li-Jun Wu
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
| | - Chang Li
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
| | - Wei-Na Han
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy; HarBin Medical University; HarBin People's Republic of China
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Reshetova EN, Asnin LD, Kachmarsky K. Effect of Secondary Equilibria on the Adsorption of Ibuprofen Enantiomers on a Chiral Stationary Phase with a Grafted Antibiotic Eremomycin. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2018. [DOI: 10.1134/s0036024418010223] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Chiral purification of S-ibuprofen from ibuprofen enantiomers by stripping crystallization. Chem Eng Res Des 2017. [DOI: 10.1016/j.cherd.2016.10.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Reshetova EN, Asnin LD. Adsorption of ibuprofen enantiomers on a chiral stationary phase with a grafted antibiotic eremomycin. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2014. [DOI: 10.1134/s0036024415020259] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Preparation, characterization and application of a chiral thermo-sensitive membrane for phenylalanine separation of the racemic mixture. JOURNAL OF POLYMER RESEARCH 2014. [DOI: 10.1007/s10965-014-0475-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Lievano R, Pérez HI, Manjarrez N, Solís A, Solís-Oba M. Hydrolysis of ibuprofen nitrile and ibuprofen amide and deracemisation of ibuprofen using Nocardia corallina B-276. Molecules 2012; 17:3148-54. [PMID: 22410421 PMCID: PMC6268212 DOI: 10.3390/molecules17033148] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 03/06/2012] [Accepted: 03/07/2012] [Indexed: 11/24/2022] Open
Abstract
A novel application of whole cells of Nocardia corallina B-276 for the deracemisation of ibuprofen is reported. This microorganism successfully hydrolysed ibuprofen nitrile to ibuprofen amide, and ibuprofen amide to ibuprofen, using a suspension of cells in a potassium phosphate buffer solution (0.1 M, pH = 7.0). These results can be explained by the presence of NHase and amidase enzymes, but the reactions are not enantioselective and low ee values were obtained. However, (R)-ibuprofen was isolated with > 99% ee by a deracemisation process catalysed by N. corallina B-276. This is the first report of this kind of catalysis with this microorganism.
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Affiliation(s)
- Ricardo Lievano
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana Unidad Xochimilco, Calzada del Hueso No. 1100, Col. Villa Quietud, Delegación Coyoacán, C.P. 04960 México, D.F., Mexico
| | - Herminia Inés Pérez
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana Unidad Xochimilco, Calzada del Hueso No. 1100, Col. Villa Quietud, Delegación Coyoacán, C.P. 04960 México, D.F., Mexico
| | - Norberto Manjarrez
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana Unidad Xochimilco, Calzada del Hueso No. 1100, Col. Villa Quietud, Delegación Coyoacán, C.P. 04960 México, D.F., Mexico
| | - Aida Solís
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana Unidad Xochimilco, Calzada del Hueso No. 1100, Col. Villa Quietud, Delegación Coyoacán, C.P. 04960 México, D.F., Mexico
| | - Myrna Solís-Oba
- Centro de Investigación en Biotecnología Ambiental, Instituto Politécnico Nacional, Carretera Estatal Santa Inés Tecuexcomac-Tepetitla Km 1.5, C.P. 90700, Tlaxcala, Mexico
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Ouazia D, Bearne SL. A continuous assay for alpha-methylacyl-coenzyme A racemase using circular dichroism. Anal Biochem 2009; 398:45-51. [PMID: 19854148 DOI: 10.1016/j.ab.2009.10.039] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2009] [Revised: 10/20/2009] [Accepted: 10/21/2009] [Indexed: 12/22/2022]
Abstract
alpha-Methylacyl-coenzyme A racemase (AMACR) catalyzes the epimerization of (2R)- and (2S)-methyl branched fatty acyl-coenzyme A (CoA) thioesters. AMACR is a biomarker for prostate cancer and a putative target for the development of therapeutic agents directed against the disease. To facilitate development of AMACR inhibitors, a continuous circular dichroism (CD)-based assay has been developed. The open reading frame encoding AMACR from Mycobacterium tuberculosis (MCR) was subcloned into a pET15b vector, and the enzyme was overexpressed and purified using metal ion affinity chromatography. The rates of MCR-catalyzed epimerization of either (2R)- or (2S)-ibuprofenoyl-CoA were determined by following the change in ellipticity at 279nm in the presence of octyl-beta-d-glucopyranoside (0.2%). MCR exhibited slightly higher affinity for (2R)-ibuprofenoyl-CoA (K(m)=48+/-5microM, k(cat)=291+/-30s(-1)), but turned over (2S)-ibuprofenoyl-CoA (K(m)=86+/-6microM, k(cat)=450+/-14s(-1)) slightly faster. MCR expressed as a fusion protein bearing an N-terminal His(6)-tag had a catalytic efficiency (k(cat)/K(m)) that was reduced 22% and 47% in the 2S-->2R and 2R-->2S directions, respectively, relative to untagged enzyme. The continuous CD-based assay offers an economical and efficient alternative method to the labor-intensive, fixed-time assays currently used to measure AMACR activity.
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Affiliation(s)
- Dahmane Ouazia
- Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 1X5
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Andrushko N, Andrushko V, Thyrann T, König G, Börner A. Synthesis of enantiopure (R)-2-(4-methoxy-3-(3-methoxypropoxy)-benzyl)-3-methylbutanoic acid—a key intermediate for the preparation of Aliskiren. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.07.150] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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