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Xu M, Lu Q, Gong B, Ti W, Lin A, Yao H, Gao S. Copper-Catalyzed Enantioselective and Regiodivergent Allylation of Ketones with Allenylsilanes. Angew Chem Int Ed Engl 2023; 62:e202311540. [PMID: 37667513 DOI: 10.1002/anie.202311540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 09/02/2023] [Accepted: 09/04/2023] [Indexed: 09/06/2023]
Abstract
We report herein a regiodivergent and enantioselective allyl addition to ketones with allenylsilanes through copper catalysis. With the combination of CuOAc, a Josiphos-type bidentate phosphine ligand and PhSiH3 , allyl addition to a variety of ketones furnishes branched products in excellent enantioselectivities. The regioselectivity is completely reversed by employing the P-stereogenic ligand BenzP*, affording the linear products with excellent enantioselectivities and good Z-selectivities. The linear Z-product could be converted to E-product via a catalytic geometric isomerization of the Z-alkene group. The silyl group in the products could provide a handle for downstream elaboration.
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Affiliation(s)
- Menghua Xu
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Qingbin Lu
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Baihui Gong
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Wenqing Ti
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Aijun Lin
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Hequan Yao
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Shang Gao
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing, 210009, P. R. China
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Suárez I, González-Rodríguez VE, Viaud M, Garrido C, Collado IG. Identification of the Sesquiterpene Cyclase Involved in the Biosynthesis of (+)-4-Epi-eremophil-9-en-11-ol Derivatives Isolated from Botrytis cinerea. ACS Chem Biol 2020; 15:2775-2782. [PMID: 32955237 DOI: 10.1021/acschembio.0c00561] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cultivation of the phytopathogenic fungus Botrytis cinerea using sublethal amounts of copper sulfate yielded a cryptic sesquiterpenoids family, which displayed the basic chemical structure of (+)-4-epi-eremophil-9-ene. The biosynthesis pathway was established, and the route involved the likely transformation of the diphosphate of farnesyl (FDP), to give a cis-fused eudesmane cation, through (S)-hedycaryol, finally yielding the (+)-4-epi-eremophil-9-enol derivatives. An expression study of genes that code for the sesquiterpene cyclases (STC), including the recently reported gene Bcstc7 present in the B. cinerea genome, was performed in order to establish the STC involved in this biosynthesis. The results showed a higher expression level for the Bcstc7 gene with respect to the other stc1-5 genes in both wild-type strains, B05.10 and Botrytis cinerea UCA992. Deletion of the Bcstc7 gene eliminated (+)-4-epi-eremophilenol biosynthesis, which could be re-established by complementing the null mutant with the Bcstc7 gene. Chemical analysis suggested that STC7 is the principal enzyme responsible for the key step of cyclization of FDP to eremophil-9-en-11-ols. Furthermore, a thorough study of the two wild-types and the complemented mutant revealed four new eremophilenol derivatives whose structures are reported here.
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Affiliation(s)
- Ivonne Suárez
- Facultad de Ciencias, Departamento de Química Orgánica, Universidad de Cádiz, Campus Universitario Río San Pedro s/n, Torre sur, 4a planta, Puerto Real, 11510 Cádiz, Spain
| | - Victoria E González-Rodríguez
- Departamento de Biomedicina y Biotecnología, Laboratorio de Microbiología, Facultad de Ciencias de Mar y Ambientales, Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain
| | - Muriel Viaud
- UMR BIOGER, INRA, Avenue Lucien Brétignières, 78850 Grignon, France
| | - Carlos Garrido
- Departamento de Biomedicina y Biotecnología, Laboratorio de Microbiología, Facultad de Ciencias de Mar y Ambientales, Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain
| | - Isidro G Collado
- Facultad de Ciencias, Departamento de Química Orgánica, Universidad de Cádiz, Campus Universitario Río San Pedro s/n, Torre sur, 4a planta, Puerto Real, 11510 Cádiz, Spain
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Chen BS, Ribeiro de Souza FZ. Enzymatic synthesis of enantiopure alcohols: current state and perspectives. RSC Adv 2019; 9:2102-2115. [PMID: 35516160 PMCID: PMC9059855 DOI: 10.1039/c8ra09004a] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 01/07/2019] [Indexed: 12/16/2022] Open
Abstract
Enantiomerically pure alcohols, as key intermediates, play an essential role in the pharmaceutical, agrochemical and chemical industries. Among the methods used for their production, biotechnological approaches are generally considered a green and effective alternative due to their mild reaction conditions and remarkable enantioselectivity. An increasing number of enzymatic strategies for the synthesis of these compounds has been developed over the years, among which seven primary methodologies can be distinguished as follows: (1) enantioselective water addition to alkenes, (2) enantioselective aldol addition, (3) enantioselective coupling of ketones with hydrogen cyanide, (4) asymmetric reduction of carbonyl compounds, (5) (dynamic) kinetic resolution of racemates, (6) enantioselective hydrolysis of epoxides, and (7) stereoselective hydroxylation of unactivated C-H bonds. Some recent reviews have examined these approaches separately; however, to date, no review has included all the above mentioned strategies. The aim of this mini-review is to provide an overview of all seven enzymatic strategies and draw conclusions on the effect of each approach.
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Affiliation(s)
- Bi-Shuang Chen
- School of Marine Sciences, Sun Yat-Sen University Guangzhou 510275 China
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Sun Yat-Sen University Guangzhou 510275 China
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Abstract
The enantioselective Michael addition using water as both nucleophile and solvent has to date proved beyond the ability of synthetic chemists. Herein, the direct, enantioselective Michael addition of water in water to prepare important β-hydroxy carbonyl compounds using whole cells of Rhodococcus strains is described. Good yields and excellent enantioselectivities were achieved with this method. Deuterium labeling studies demonstrate that a Michael hydratase catalyzes the water addition exclusively with anti-stereochemistry.
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Affiliation(s)
- Bi-Shuang Chen
- Technische Universiteit Delft, Gebouw voor Scheikunde, Afdeling BiotechnologieJulianalaan 136, 2628 BL Delft (Netherlands)
| | - Verena Resch
- Technische Universiteit Delft, Gebouw voor Scheikunde, Afdeling BiotechnologieJulianalaan 136, 2628 BL Delft (Netherlands)
- University of Graz, Organic and Bioorganic Chemistry, Institute of ChemistryHeinrichstrasse 28, 8010 Graz (Austria)
| | - Linda G Otten
- Technische Universiteit Delft, Gebouw voor Scheikunde, Afdeling BiotechnologieJulianalaan 136, 2628 BL Delft (Netherlands)
| | - Ulf Hanefeld
- Technische Universiteit Delft, Gebouw voor Scheikunde, Afdeling BiotechnologieJulianalaan 136, 2628 BL Delft (Netherlands)
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Eey STC, Lear MJ. Total Synthesis of (−)-Platensimycin by Advancing Oxocarbenium- and Iminium-Mediated Catalytic Methods. Chemistry 2014; 20:11556-73. [DOI: 10.1002/chem.201400131] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Indexed: 11/10/2022]
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Eey STC, Lear MJ. A Bismuth(III)-Catalyzed Friedel−Crafts Cyclization and Stereocontrolled Organocatalytic Approach to (−)-Platensimycin. Org Lett 2010; 12:5510-3. [DOI: 10.1021/ol102390t] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stanley T.-C. Eey
- Department of Chemistry, Faculty of Science, and Medicinal Chemistry Program of the Life Sciences Institute, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Martin J. Lear
- Department of Chemistry, Faculty of Science, and Medicinal Chemistry Program of the Life Sciences Institute, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
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Hanson JR. Fifty Years of the Synthesis of Labelled Mevalonic Acid. JOURNAL OF CHEMICAL RESEARCH 2008. [DOI: 10.3184/030823408x317506] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This article reviews developments in the synthesis of isotopically-labelled samples of mevalonic acid for use in studies of terpenoid and steroid biosynthesis.
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Affiliation(s)
- James R. Hanson
- Department of Chemistry, University of Sussex, Brighton BN1 9QJ, UK
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Kazlauskas RJ, Bornscheuer UT. Biotransformations with Lipases. BIOTECHNOLOGY 2008:36-191. [PMID: 0 DOI: 10.1002/9783527620906.ch3] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
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Biocatalytic resolution of sterically hindered alcohols, carboxylic acids and esters containing fully substituted chiral centers by hydrolytic enzymes. ACTA ACUST UNITED AC 2000. [DOI: 10.1016/s1381-1177(99)00121-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Fernandes RA, Kumar P. Enantioselective synthesis of (R)-(−)-mevalonolactone via cyclic sulfate methodology. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s0957-4166(99)00496-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Adam J, Klein R, Grabley S, Hammann P. Chiral building blocks from streptomyces-2.1 stereoselective transformation of streptenol a into 3-methyl-δ-lactones. Tetrahedron 1995. [DOI: 10.1016/0040-4020(95)00438-e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Watanabe N, Sugai T, Ohta H. Enzymatic Preparation of Glycerol-related Chiral Pool Possessingtert-Alkoxy Group. CHEM LETT 1992. [DOI: 10.1246/cl.1992.657] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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