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Luo N, Yang YB, Yang XQ, Miao CP, Li YQ, Xu LH, Ding ZT, Zhao LX. The streptazolin- and obscurolide-type metabolites from soil-derivedStreptomyces albonigerYIM20533 and the mechanism of influence of γ-butyrolactone on the growth ofStreptomycesby their non-enzymatic reaction biosynthesis. RSC Adv 2018; 8:35042-35049. [PMID: 35547034 PMCID: PMC9087211 DOI: 10.1039/c8ra06690f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 09/27/2018] [Indexed: 11/21/2022] Open
Abstract
Eleven new compounds with streptazolin- and obscurolide-type skeletons were isolated from soil-derivedStreptomyces albonigerobtained from Tibet, China.
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Affiliation(s)
- Na Luo
- Yunnan Institute of Microbiology
- College of Life Science
- Yunnan University
- Kunming
- People's Republic of China
| | - Ya-Bin Yang
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
- Kunming
- People's Republic of China
| | - Xue-Qiong Yang
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
- Kunming
- People's Republic of China
| | - Cui-Ping Miao
- Yunnan Institute of Microbiology
- College of Life Science
- Yunnan University
- Kunming
- People's Republic of China
| | - Yi-Qing Li
- Yunnan Institute of Microbiology
- College of Life Science
- Yunnan University
- Kunming
- People's Republic of China
| | - Li-Hua Xu
- Yunnan Institute of Microbiology
- College of Life Science
- Yunnan University
- Kunming
- People's Republic of China
| | - Zhong-Tao Ding
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
- Kunming
- People's Republic of China
| | - Li-Xing Zhao
- Yunnan Institute of Microbiology
- College of Life Science
- Yunnan University
- Kunming
- People's Republic of China
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Jiang B, Zhang X, Yang C. Palladium-catalyzed direct approach to α-CF3 aryl ketones from arylboronic acids. Org Chem Front 2018. [DOI: 10.1039/c8qo00289d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A concise synthesis of α-CF3 aryl ketones was achieved via Pd-catalyzed cross-couplings of arylboronic acids, ICH2CF3 and atmospheric pressure CO.
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Affiliation(s)
- Bo Jiang
- Nano Science and Technology Institute
- University of Science and Technology of China
- 215123 Suzhou
- China
| | - Xiaofei Zhang
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Chunhao Yang
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
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de Miranda AS, Miranda LS, de Souza RO. Lipases: Valuable catalysts for dynamic kinetic resolutions. Biotechnol Adv 2015; 33:372-93. [DOI: 10.1016/j.biotechadv.2015.02.015] [Citation(s) in RCA: 120] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 02/10/2015] [Accepted: 02/25/2015] [Indexed: 12/22/2022]
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Zhang J, Wu S, Wu J, Li Z. Enantioselective Cascade Biocatalysis via Epoxide Hydrolysis and Alcohol Oxidation: One-Pot Synthesis of (R)-α-Hydroxy Ketones from Meso- or Racemic Epoxides. ACS Catal 2014. [DOI: 10.1021/cs5016113] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jiandong Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585
| | - Shuke Wu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585
| | - Jinchuan Wu
- Institute of Chemical and Engineering Sciences, 1 Pesek Road, Jurong Island, Singapore 627833
| | - Zhi Li
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585
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Igawa K, Kawasaki Y, Nishino K, Mitsuda N, Tomooka K. Asymmetric Ozone Oxidation of Silylalkenes Using aC2-Symmetrical Dialkoxysilyl Group as a Chiral Auxiliary. Chemistry 2014; 20:9255-8. [DOI: 10.1002/chem.201402996] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Indexed: 11/07/2022]
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6
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Peluso P, Cossu S. Comparative HPLC Enantioseparation of Thirty-Six Aromatic Compounds on Four Columns of the Lux® Series: Impact of Substituents, Shapes and Electronic Properties. Chirality 2013; 25:709-18. [DOI: 10.1002/chir.22202] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Accepted: 05/17/2013] [Indexed: 11/06/2022]
Affiliation(s)
- Paola Peluso
- Istituto di Chimica Biomolecolare ICB CNR - UOS di Sassari; Sassari Italy
| | - Sergio Cossu
- Dipartimento di Scienze Molecolari e Nanosistemi; Università Ca' Foscari di Venezia; Venezia Italy
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Characterization of a zinc-containing alcohol dehydrogenase with stereoselectivity from the hyperthermophilic archaeon Thermococcus guaymasensis. J Bacteriol 2011; 193:3009-19. [PMID: 21515780 DOI: 10.1128/jb.01433-10] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
An alcohol dehydrogenase (ADH) from hyperthermophilic archaeon Thermococcus guaymasensis was purified to homogeneity and was found to be a homotetramer with a subunit size of 40 ± 1 kDa. The gene encoding the enzyme was cloned and sequenced; this gene had 1,095 bp, corresponding to 365 amino acids, and showed high sequence homology to zinc-containing ADHs and l-threonine dehydrogenases with binding motifs of catalytic zinc and NADP(+). Metal analyses revealed that this NADP(+)-dependent enzyme contained 0.9 ± 0.03 g-atoms of zinc per subunit. It was a primary-secondary ADH and exhibited a substrate preference for secondary alcohols and corresponding ketones. Particularly, the enzyme with unusual stereoselectivity catalyzed an anti-Prelog reduction of racemic (R/S)-acetoin to (2R,3R)-2,3-butanediol and meso-2,3-butanediol. The optimal pH values for the oxidation and formation of alcohols were 10.5 and 7.5, respectively. Besides being hyperthermostable, the enzyme activity increased as the temperature was elevated up to 95°C. The enzyme was active in the presence of methanol up to 40% (vol/vol) in the assay mixture. The reduction of ketones underwent high efficiency by coupling with excess isopropanol to regenerate NADPH. The kinetic parameters of the enzyme showed that the apparent K(m) values and catalytic efficiency for NADPH were 40 times lower and 5 times higher than those for NADP(+), respectively. The physiological roles of the enzyme were proposed to be in the formation of alcohols such as ethanol or acetoin concomitant to the NADPH oxidation.
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Hoyos P, Sinisterra JV, Molinari F, Alcántara AR, Domínguez de María P. Biocatalytic strategies for the asymmetric synthesis of alpha-hydroxy ketones. Acc Chem Res 2010; 43:288-99. [PMID: 19908854 DOI: 10.1021/ar900196n] [Citation(s) in RCA: 170] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The development of efficient syntheses for enantiomerically enriched alpha-hydroxy ketones is an important research focus in the pharmaceutical industry. For example, alpha-hydroxy ketones are found in antidepressants, in selective inhibitors of amyloid-beta protein production (used in the treatment of Alzheimer's), in farnesyl transferase inhibitors (Kurasoin A and B), and in antitumor antibiotics (Olivomycin A and Chromomycin A3). Moreover, alpha-hydroxy ketones are of particular value as fine chemicals because of their utility as building blocks for the production of larger molecules. They can also be used in preparing many other important structures, such as amino alcohols, diols, and so forth. Several purely chemical synthetic approaches have been proposed to afford these compounds, together with some organocatalytic strategies (thiazolium-based carboligations, proline alpha-hydroxylations, and so forth). However, many of these chemical approaches are not straightforward, lack selectivity, or are economically unattractive because of the large number of chemical steps required (usually combined with low enantioselectivities). In this Account, we describe three different biocatalytic approaches that have been developed to efficiently produce alpha-hydroxy ketones: (i) The use of thiamine diphosphate-dependent lyases (ThDP-lyases) to catalyze the umpolung carboligation of aldehydes. Enantiopure alpha-hydroxy ketones are formed from inexpensive aldehydes with this method. Some lyases with a broad substrate spectrum have been successfully characterized. Furthermore, the use of biphasic media with recombinant whole cells overexpressing lyases leads to productivities of approximately 80-100 g/L with high enantiomeric excesses (up to >99%). (ii) The use of hydrolases to produce alpha-hydroxy ketones by means of (in situ) dynamic kinetic resolutions (DKRs). Lipases are able to successfully resolve racemates, and many outstanding examples have been reported. However, this approach leads to a maximum theoretical yield of 50%. As a means of overcoming this problem, these traditional lipase-catalyzed kinetic resolutions are combined with racemization of remnant substrate, which can be done in situ or in separate compartments. Examples showing high conversions (>90%) and enantiomeric excesses (>99%) are described. (iii) Whole-cell redox processes, catalyzed by several microorganisms, either by means of free enzymes (applying a cofactor regeneration system) or by whole cells. Through the use of redox machineries, different strategies can lead to high yields and enantiomeric excesses. Some enantiopure alpha-hydroxy ketones can be formed by reductions of diketones and by selective oxidations of vicinal diols. Likewise, some redox processes involving sugar chemistry (involving alpha-hydroxy ketones) have been developed on the industrial scale. Finally, the redox whole-cell concept allows racemizations (and deracemizations) as well. These three strategies provide a useful and environmentally friendly synthetic toolbox. Likewise, the field represents an illustrative example of how biocatalysis can assist practical synthetic processes, and how problems derived from the integration of natural tools in synthetic pathways can be efficiently tackled to afford high yields and enantioselectivities.
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Affiliation(s)
- Pilar Hoyos
- Grupo de Biotransformaciones, Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza de Ramón y Cajal, s/n. 28040 Madrid, Spain
| | - Josep-Vicent Sinisterra
- Grupo de Biotransformaciones, Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza de Ramón y Cajal, s/n. 28040 Madrid, Spain
- Unidad de Biotransformaciones Industriales, Parque Científico de Madrid, PTM, C/ Santiago Grisolía, 2, 28760 Tres Cantos, Madrid, Spain
| | - Francesco Molinari
- Dipartimento di Scienze e Tecnologie Alimentari e Microbiologiche, Università degli Studi di Milano, 20133 Milano, Italy
| | - Andrés R. Alcántara
- Grupo de Biotransformaciones, Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza de Ramón y Cajal, s/n. 28040 Madrid, Spain
- Unidad de Biotransformaciones Industriales, Parque Científico de Madrid, PTM, C/ Santiago Grisolía, 2, 28760 Tres Cantos, Madrid, Spain
| | - Pablo Domínguez de María
- Institute of Technical and Macromolecular Chemistry (ITMC), RWTH Aachen University, Worringerweg 1, D-52074 Aachen, Germany
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