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Bai WJ, Estrada MA, Gartman JA, Judd AS. Enantioselective Bioreduction of Medicinally Relevant Nitrogen-Heteroaromatic Ketones. ACS Med Chem Lett 2023; 14:846-852. [PMID: 37312862 PMCID: PMC10258907 DOI: 10.1021/acsmedchemlett.3c00114] [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: 03/27/2023] [Accepted: 04/27/2023] [Indexed: 06/15/2023] Open
Abstract
We herein report an enantioselective bioreduction of ketones that bear the most frequently used nitrogen-heteroaromatics in FDA-approved drugs. Ten varieties of these nitrogen-containing heterocycles were systematically investigated. Eight categories were studied for the first time and seven types were tolerated, significantly expanding the substrate scope of plant-mediated reduction. By use of purple carrots in buffered aqueous media with a simplified reaction setup, this biocatalytic transformation was achieved within 48 h at ambient temperature, offering medicinal chemists a pragmatic and scalable tool to access a broad variety of nitrogen-heteroaryl-containing chiral alcohols. With multiple reactive sites, the structurally diverse set of chiral alcohols can be used for library compound preparation, early route-scouting activities, and synthesis of other pharmaceutical molecules, favorably accelerating medicinal chemistry campaigns.
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Affiliation(s)
- Wen-Ju Bai
- AbbVie Inc., North Chicago, Illinois 60064, United States
| | | | | | - Andrew S. Judd
- AbbVie Inc., North Chicago, Illinois 60064, United States
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2
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Oxidation of Alcohols into Carbonyl Compounds Using a CuO@GO Nano Catalyst in Oxygen Atmospheres. Catalysts 2022. [DOI: 10.3390/catal13010055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
In this article, the oxidation of alcohols into carbonyl compounds was studied in oxygen atmospheres using a copper oxide on graphene oxide (CuO@GO) nano composites catalyst, synthesized by the wet chemistry method. CuO@GO nano composites were prepared from GO, and CuO NPs by the sol-gel method. The transformation of aromatic alcohols into corresponding carbonyl compounds in good-to-high yields were observed using the CuO@GO catalyst under an oxygen atmosphere. Synthesized CuO@GO was confirmed by FT-IR, XRD, XPS, TEM, FE-SEM, TEM, and SEM analyses, and revealed intercalation of CuO-NPs on/in GO nano sheets through the chelation of Cu+2 ions with CO, COOH, and OH groups presenting on the GO nano sheets. The catalytic activity of CuO@GO nano composites for the conversion of alcohols into carbonyl compounds were evaluated through TOF (2.56 × 10−3 mol g−1 min−1). The use of CuO@GO has shown catalytic activity and recyclability with a high conversion of alcohols to ketones. We assume that the proposed CuO@GO catalyst can be used for other key organic transformations and will be evaluated in the future.
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Chemoenzymatic Synthesis of Optically Active Alcohols Possessing 1,2,3,4-Tetrahydroquinoline Moiety Employing Lipases or Variants of the Acyltransferase from Mycobacterium smegmatis. Catalysts 2022. [DOI: 10.3390/catal12121610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The enzymatic kinetic resolution (EKR) of racemic alcohols or esters is a broadly recognized methodology for the preparation of these compounds in optically active form. Although EKR approaches have been developed for the enantioselective transesterification of a vast number of secondary alcohols or hydrolysis of their respective esters, to date, there is no report of bio- or chemo-catalytic asymmetric synthesis of non-racemic alcohols possessing 1,2,3,4-tetrahydroquinoline moiety, which are valuable building blocks for the pharmaceutical industry. In this work, the kinetic resolution of a set of racemic 1,2,3,4-tetrahydroquinoline-propan-2-ols was successfully carried out in neat organic solvents (in the case of CAL-B and BCL) or in water (in the case of MsAcT single variants) using immobilized lipases from Candida antarctica type B (CAL-B) and Burkholderia cepacia (BCL) or engineered acyltransferase variants from Mycobacterium smegmatis (MsAcT) as the biocatalysts and vinyl acetate as irreversible acyl donor, yielding enantiomerically enriched (S)-alcohols and the corresponding (R)-acetates with E-values up to 328 and excellent optical purities (>99% ee). In general, higher ee-values were observed in the reactions catalyzed by lipases; however, the rates of the reactions were significantly better in the case of MsAcT-catalyzed enantioselective transesterifications. Interestingly, we have experimentally proved that enantiomerically enriched 1-(7-nitro-3,4-dihydroquinolin-1(2H)-yl)propan-2-ol undergoes spontaneous amplification of optical purity under achiral chromatographic conditions.
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Wang Z, Zhao X, Wang S, Huang A, Wang Y, He J, Ling F, Zhong W. Iridium/ f-diaphos catalyzed asymmetric hydrogenation of 2-imidazolyl aryl/alkyl ketones. Org Biomol Chem 2021; 19:9746-9751. [PMID: 34730165 DOI: 10.1039/d1ob01860d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The iridium/f-diaphos L1, L5 or L12 catalyzed asymmetric hydrogenation of 2-imidazolyl aryl/alkyl ketones to afford two enantiomers of the desired chiral alcohols with high conversions (up to 99% yield) and moderate to excellent enantioselectivities (61% - >99% ee) was realized for the first time. This protocol could be easily conducted on a gram-scale with a TON of 9700.
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Affiliation(s)
- Ze Wang
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Xianghua Zhao
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Shiliang Wang
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - An Huang
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Yifan Wang
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Jiaying He
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Fei Ling
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Weihui Zhong
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
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Rao NK, Rao TN, Parvatamma B, Prashanthi Y, Cheedarala RK. Novel Synthesis of 4-Benzylidene-2-((1-phenyl-3,4-dihydroisoquinoline-2(1H)-yl)methyl) oxazol-5(4H)-one Derivatives Using 1,2,3,Tetrahydroisoquinoline and their Antimicrobial Activity. Curr Org Synth 2021; 17:396-403. [PMID: 32294044 DOI: 10.2174/1570179417666200415151228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/01/2020] [Accepted: 03/16/2020] [Indexed: 01/28/2023]
Abstract
AIMS A series of six 4-benzylidene-2-((1-phenyl-3,4-dihydro isoquinoline-2(1H)-yl)methyloxazol- 5(4H)-one derivatives were synthesized by condensation of substituted aryl aldehydes with 2-(2-(1-phenyl-3,4- dihydro isoquinoline-2(1H)-acetamido)acetic acid in the presence of sodium acetate, acetic anhydride and zinc oxide as catalysts. BACKGROUND Novel Synthesis of 4-Benzylidene-2-((1-phenyl-3,4-dihy droisoquinoline-2(1H)-yl)methyl)oxazol- 5(4H)-one derivatives using 1,2,3,Tetrahydroisoquinoline and their antimicrobial activity. OBJECTIVE The title compounds can be synthesized from 1,2,3,4-tetrahydroisoquinoline. METHODS The target molecules, i.e., 4-benzylidene-2-((1-phenyl-3, 4-dihydro isoquinoline-2(1H)-yl) methyl) oxazol-5(4H)-one derivatives (8a-8f) have been synthesized from 1,2,3,4-tetrahydroisoquinoline which was prepared from benzoic acid in few steps. RESULTS All the six compounds were evaluated based on advanced spectral data (1H NMR, 13C NMR & LCMS), and the chemical structures of all compounds were determined by elemental analysis. CONCLUSION Antibacterial activity of the derivatives was examined for the synthesized compounds and results indicate that compound with bromine substitution has a good activity profile.
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Affiliation(s)
- Nalla Krishna Rao
- Department of Chemistry, Krishna University, Machilipatnam, Andhra Pradesh, India
| | - Tentu Nageswara Rao
- School of Materials Science and Engineering, Changwon National University, Changwon, Gyeongnam, 641-773, Korea
| | - Botsa Parvatamma
- Department of Organic Chemistry, Gayathri P.G Courses, Gotlam, Vizianagaram, AP, India
| | - Y Prashanthi
- Department of Chemistry, Mahatma Gandhi University, Nalgonda, Telangana, India
| | - Ravi Kumar Cheedarala
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), San 31 Hyojadong, Pohang, Kyeongbuk 790-784, Korea
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Reusable Nano-Zirconia-Catalyzed Synthesis of Benzimidazoles and Their Antibacterial and Antifungal Activities. Molecules 2021; 26:molecules26144219. [PMID: 34299494 PMCID: PMC8304051 DOI: 10.3390/molecules26144219] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 07/06/2021] [Accepted: 07/07/2021] [Indexed: 11/22/2022] Open
Abstract
In this article, a zirconia-based nano-catalyst (Nano-ZrO2), with intermolecular C-N bond formation for the synthesis of various benzimidazole-fused heterocycles in a concise method is reported. The robustness of this reaction is demonstrated by the synthesis of a series of benzimidazole drugs in a one-pot method. All synthesized materials were characterized using 1HNMR, 13CNMR, and LC-MS spectroscopy as well as microanalysis data. Furthermore, the synthesis of nano-ZrO2 was processed using a standard hydrothermal technique in pure form. The crystal structure of nano-ZrO2 and phase purity were studied, and the crystallite size was calculated from XRD analysis using the Debye–Scherrer equation. Furthermore, the antimicrobial activity of the synthesized benzimidazole drugs was evaluated in terms of Gram-positive, Gram-negative, and antifungal activity, and the results were satisfactory.
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Jaggavarapu RMR, Muvvala V, Venkatareddy G, Cheedarala RK. Facile Synthetic Protocols for the preparation of New Impurities in Pemetrexed Disodium Heptahydrate as an Anti-Cancer Drug. Curr Org Synth 2021; 19:2-9. [PMID: 33459237 DOI: 10.2174/1570179418666210114145914] [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: 09/25/2020] [Revised: 11/05/2020] [Accepted: 11/10/2020] [Indexed: 11/22/2022]
Abstract
A facile synthetic protocols were employed to prepare process-related impurities associated with the synthesis of pemetrexed disodium heptahydrate, Alimta. The research work is described for the development of the novel synthetic methods and their structure elucidation of Pemetrexed glutamide, N-methyl pemetrexed, and N-methyl pemetrexed glutamide impurities. The listed impurities were deduced through spectral analysis such as 1H-NMR, 13CNMR, and HRMS. The target compounds can be used as the reference substances for the quality control.
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Affiliation(s)
- Rama Mohana Reddy Jaggavarapu
- Department of Chemistry, Gitam School of Science, GITAM (Deemed to be University), Hyderabad, Telangana-502329. India
| | - Venkatanarayana Muvvala
- Department of Chemistry, Gitam School of Science, GITAM (Deemed to be University), Hyderabad, Telangana-502329. India
| | - Ghojala Venkatareddy
- MSN Laboratories Pvt. Ltd. Sy. No. 50, Kardanur (V), Patancheru(M), Sangareddy Dist., Telangana State. India
| | - Ravi Kumar Cheedarala
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), San 31 Hyojadong, Pohang, Kyeongbuk 790-784. Korea
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Jaggavarapu RMR, Muvvala V, Reddy G V, Cheedarala RK. Isolation, characterization, and docking studies of (Z)-isopropyl 7-((1R, 2R, 3R, 5S)-2-((1E, 3Z)-3-fluoro-4-phenoxybuta-1, 3-dienyl)-3,5- dihydroxycyclopentyl) hept-5-enoate, an Impurity of Tafluprost. Curr Org Synth 2020; 19:10-15. [PMID: 33297916 DOI: 10.2174/1570179417666201209141222] [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: 06/16/2020] [Revised: 10/16/2020] [Accepted: 10/20/2020] [Indexed: 11/22/2022]
Abstract
INTRODUCTION The origin, isolation, and characterization of (Z)-isopropyl 7-((1R, 2R, 3R, 5S)-2-((1E, 3Z)-3-fluoro4-phenoxybuta-1, 3-dienyl)-3, 5-dihydroxycyclopentyl) hept-5-enoate, an impurity found in the preparation of an antiglaucoma agent-Tafluprost has been described. MATERIALS AND METHODS Further, an enantiospecific synthesis of (Z)-isopropyl 7-((1R, 2R, 3R, 5S)-2-((1E, 3Z)-3-fluoro-4- phenoxybuta-1, 3-dienyl)-3, 5-dihydroxycyclopentyl) hept-5-enoate has been revealed using deoxofluorination as a key transformation of the strategy. RESULTS AND DISCUSSIONS Moreover, the impurity showing anti-glaucoma properties in docking studies with respect to bimatoprost. CONCLUSION The extent of our work towards docking studies, the present impurity molecule showing almost the same biological activity with respect to Tafluprost.
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Affiliation(s)
- Rama Mohana Reddy Jaggavarapu
- Department of Chemistry, Gitam School of Science, GITAM (Deemed to be University), Hyderabad, Telangana-502329. India
| | - Venkatanarayana Muvvala
- Department of Chemistry, Gitam School of Science, GITAM (Deemed to be University), Hyderabad, Telangana-502329. India
| | | | - Ravi Kumar Cheedarala
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), SAN31, Hyoja-dong. South Korea
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Raju KM, Cheedarala RK, Pandurangan A. Sulfolane Mediated Highly Selective Synthesis of Mono and Bis-aryl-2-Methyl-6- Fluoro-Indoles and Their Halogenated Synthons. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824999200914111909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A simple, efficient, and cheap strategy has been developed for N-arylation of
indoles with hexafloro benzene (1) via incorporating sulfolane as an eco-friendly solvent. N-Monopentafluoroarylindole
(3) at ambient conditions and N, N-bistetrafluoroaryl indole (4)
at elevated temperatures were conveniently obtained by simple nucleophilic substitution
using NaOH as the base and sulfolane as a reaction medium to obtain in moderately good
yields, respectively. Subsequently, 3-chloro, 3-bromo, and 3-iodomono-pentafluoroarylindoles
and 3, 3’-dichloro, 3, 3’-dibromo and 3, 3’-diIodobistetrafluoroaryl indoles were
prepared in good yields by using respective halogenating reagents and solvents. All the
chemical transformations were confirmed by analytical tools such as 1HNMR, FR-IR and
HRMS analysis.
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Affiliation(s)
| | - Ravi Kumar Cheedarala
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), UNIST-Gil, Ulsan, Korea
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Nageswara Rao T, Cheedarala RK. Determination of Dithiocarbamate Mancozeb Residues in Milk Samples Using GC-MS Method. ACTA ACUST UNITED AC 2020. [DOI: 10.1080/22297928.2019.1710563] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Tentu. Nageswara Rao
- School of Materials Science and Engineering, Changwon National University, Changwon, Gyeongnam, Republic of Korea
| | - Ravi Kumar Cheedarala
- Graduate School of Energy, Environment, Water and Sustainability (EEWS), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
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Reddy UC, Manheri MK. 1-Hydroxymethyl-7-oxabicyclo[2.2.1]hept-2-ene skeleton in enantiopure form through enzymatic kinetic resolution. Chirality 2019; 31:336-347. [PMID: 30753757 DOI: 10.1002/chir.23060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 01/08/2019] [Accepted: 01/08/2019] [Indexed: 11/11/2022]
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Borowiecki P, Dranka M, Ochal Z. Lipase-Catalyzed Kinetic Resolution ofN-Substituted 1-(β-Hydroxypropyl)indoles by Enantioselective Acetylation. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700889] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Paweł Borowiecki
- Faculty of Chemistry; Department of Drugs Technology and Biotechnology; Warsaw University of Technology; Koszykowa St. 3 00-664 Warsaw Poland
| | - Maciej Dranka
- Faculty of Chemistry; Department of Drugs Technology and Biotechnology; Warsaw University of Technology; Koszykowa St. 3 00-664 Warsaw Poland
| | - Zbigniew Ochal
- Faculty of Chemistry; Department of Drugs Technology and Biotechnology; Warsaw University of Technology; Koszykowa St. 3 00-664 Warsaw Poland
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Łukowska-Chojnacka E, Staniszewska M, Bondaryk M, Maurin JK, Bretner M. Lipase-Catalyzed Kinetic Resolution of Novel Antifungal N-Substituted Benzimidazole Derivatives. Chirality 2016; 28:347-54. [PMID: 26922853 DOI: 10.1002/chir.22591] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 01/08/2016] [Accepted: 01/29/2016] [Indexed: 11/10/2022]
Abstract
A series of new N-substituted benzimidazole derivatives was synthesized and their antifungal activity against Candida albicans was evaluated. The chemical step included synthesis of appropriate ketones containing benzimidazole ring, reduction of ketones to the racemic alcohols, and acetylation of alcohols to the esters. All benzimidazole derivatives were obtained with satisfactory yields and in relatively short times. All synthesized compounds exhibit significant antifungal activity against Candida albicans 900028 ATCC (% cell inhibition at 0.25 μg concentration > 98%). Additionally, racemic mixtures of alcohols were separated by lipase-catalyzed kinetic resolution. In the enzymatic step a transesterification reaction was applied and the influence of a lipase type and solvent on the enantioselectivity of the reaction was studied. The most selective enzymes were Novozyme SP 435 and lipase Amano AK from Pseudomonas fluorescens (E > 100).
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Affiliation(s)
- Edyta Łukowska-Chojnacka
- Faculty of Chemistry, Institute of Biotechnology, Warsaw University of Technology, Warsaw, Poland
| | - Monika Staniszewska
- Independent Laboratory of Streptomyces and Fungi Imperfecti, National Institute of Public Health-National Institute of Hygiene, Warsaw, Poland
| | - Małgorzata Bondaryk
- Independent Laboratory of Streptomyces and Fungi Imperfecti, National Institute of Public Health-National Institute of Hygiene, Warsaw, Poland
| | - Jan K Maurin
- National Centre for Nuclear Research, Otwock, Poland.,National Medicines Institute, Warsaw, Poland
| | - Maria Bretner
- Faculty of Chemistry, Institute of Biotechnology, Warsaw University of Technology, Warsaw, Poland
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Stereoselective Chemoenzymatic Synthesis of Enantiopure 1-(Heteroaryl)ethanamines by Lipase-Catalysed Kinetic Resolutions. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900150] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Toşa M, Pilbák S, Moldovan P, Paizs C, Szatzker G, Szakács G, Novák L, Irimie FD, Poppe L. Lipase-catalyzed kinetic resolution of racemic 1-heteroarylethanols—experimental and QM/MM study. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.07.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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