1
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Podversnik H, Camp JE, Greatrex BW. Practical and scalable enantioselective synthesis of (+)-majoranolide from Cyrene. Org Biomol Chem 2024; 22:950-953. [PMID: 38205508 DOI: 10.1039/d3ob01919e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
A two-step enantioselective gram scale synthesis of the Persea derived γ-lactones (+)-majoranolide and (+)-majoranolide B has been achieved. The sequence uses the amine promoted crossed condensation of the biorenewable synthon Cyrene with aliphatic aldehydes followed by a Baeyer-Villiger oxidation. Comparison of optical rotation data with the natural products established the absolute configuration of the natural product series, and this work represents the first synthesis of these alkylidene natural products.
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Affiliation(s)
- Harald Podversnik
- Faculty of Medicine and Health, University of New England, Armidale, NSW, 2351, Australia.
| | - Jason E Camp
- Circa Sustainable Chemicals Limited, York, YO19 5SN, UK
| | - Ben W Greatrex
- Faculty of Medicine and Health, University of New England, Armidale, NSW, 2351, Australia.
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2
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Yang Z, Zhang Y, Zhu X, Mao Y, Wu J, Chen S, Fan R, Yu Z. Torrefaction characteristics of cellulose loaded with boric acid. Carbohydr Res 2023; 523:108709. [PMID: 36368078 DOI: 10.1016/j.carres.2022.108709] [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: 06/15/2022] [Revised: 10/07/2022] [Accepted: 10/21/2022] [Indexed: 01/28/2023]
Abstract
To explore the catalytic effect of boric acid on biomass, cellulose loaded with boric acid was roasted by a tubular furnace. The gaseous products were adsorbed by activated carbon and then analyzed by GC-MS. Boric acid was shown to improve the selectivity of the product levoglucosenone (LGO). The effects of the parameters such as boric acid loading, nitrogen flow, and temperature on the torrefaction behavior of cellulose were investigated. In the studied temperature range of 240-420 °C, the yield of LGO first increases and then decreases. In addition, its yield increases directly with increasing nitrogen flow rate. The results show that the highest LGO yield of 6.64% (analytical value) can be obtained under 10% (w/w) boric acid loading, 380 °C and nitrogen flow rate of 65 ml/min conditions.
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Affiliation(s)
- Zhiguang Yang
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan, 467036, China; College of Resources and Environment, Chinese Academy of Sciences, Beijing, 100085, China.
| | - Yaochao Zhang
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan, 467036, China
| | - Xinfeng Zhu
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan, 467036, China
| | - Yanli Mao
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan, 467036, China
| | - Junfeng Wu
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan, 467036, China
| | - Songtao Chen
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan, 467036, China
| | - Ruimei Fan
- Department of Physiology and Neurobiology, Sino-UK Joint Laboratory for Brain Function and Injury, Xinxiang Medical University, Xinxiang, 453003, China
| | - Zhisheng Yu
- College of Resources and Environment, Chinese Academy of Sciences, Beijing, 100085, China
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3
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Tsai YH, Borini Etichetti CM, Cicetti S, Girardini JE, Spanevello RA, Suárez AG, Sarotti AM. Design, synthesis and evaluation of novel levoglucosenone derivatives as promising anticancer agents. Bioorg Med Chem Lett 2020; 30:127247. [PMID: 32527547 DOI: 10.1016/j.bmcl.2020.127247] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 04/25/2020] [Accepted: 05/02/2020] [Indexed: 11/28/2022]
Abstract
A series of levoglucosenone-derived 1,2,3-triazoles and isoxazoles featuring a flexible spacer between the heteroaromatic and anhydropyranose cores have been designed and synthesized following an hetero Michael // 1,3-dipolar cycloaddition path. The use of a design of experiments approach allowed the optimization of the oxa-Michael reaction with propargyl alcohol as nucleophile, a key step for the synthesis of the target compounds. All of the compounds were tested for their anticancer activity on MDA-MB-231 cells, featuring mutant p53. The results highlighted the importance of the introduction of the flexible spacer as well as the higher activity of oxa-Michael isoxazole-derivatives. The most prominent compounds also showed anti-proliferative activities against lung and colon cancer cell lines. The compounds showed enhanced cytotoxic effects in the presence of mutant p53, determined both by endogenous mutant p53 knock down (R280K) and by reintroducing p53 R280K in cells lacking p53 expression.
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Affiliation(s)
- Yi-Hsuan Tsai
- Instituto de Química Rosario (CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario 2000, Argentina
| | - Carla M Borini Etichetti
- Instituto Fisiología Experimental de Rosario (IFISE-CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, 2000 Rosario, Argentina
| | - Soledad Cicetti
- Instituto de Química Rosario (CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario 2000, Argentina
| | - Javier E Girardini
- Instituto de Inmunología Clínica y Experimental de Rosario (IDICER-CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, 2000 Rosario, Argentina
| | - Rolando A Spanevello
- Instituto de Química Rosario (CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario 2000, Argentina
| | - Alejandra G Suárez
- Instituto de Química Rosario (CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario 2000, Argentina
| | - Ariel M Sarotti
- Instituto de Química Rosario (CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario 2000, Argentina.
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4
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Li J, Yang S, Wu W, Jiang H. Palladium‐Catalyzed Cascade Cyclization/Alkynylation Reactions. Chem Asian J 2019; 14:4114-4128. [DOI: 10.1002/asia.201901202] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 10/19/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510640 China
| | - Shaorong Yang
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510640 China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510640 China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510640 China
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5
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Klepp J, Sadgrove NJ, Legendre SVAM, Sumby CJ, Greatrex BW. Biomimetic Synthesis of Mitchellenes B-H from the Abundant Biological Precursor 14-Hydroxy-6,12-muuroloadien-15-oic Acid. J Org Chem 2019; 84:9637-9647. [PMID: 31293152 DOI: 10.1021/acs.joc.9b00961] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A step-economic biomimetic synthesis of mitchellenes B-H found in Eremophila sturtii has been achieved. Starting from the putative muurolane biological precursor, redox isomerization of the allylic alcohol gave an epimeric mixture of aldehydes, which could be used as a handle for cyclization onto the C6 position, using Bu3SnH-mediated radical cyclization or NHC-catalyzed Stetter reaction. The NHC-mediated approach was superior as the epimeric mixture underwent a dynamic kinetic resolution during the reaction, and reduction of the mixture with NaBH4 selectively formed the mitchellene ring system in 56% yield for the three steps. In the campaign to obtain the acid-starting material, two new natural products, mitchellene H and a muurolane aldehyde, were isolated. Synthetic procedures to access this family of natural products will enable further studies on their biological properties.
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Affiliation(s)
| | | | | | - Christopher J Sumby
- School of Physical Sciences , University of Adelaide , Adelaide , South Australia 5005 , Australia
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6
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Reverse ketal-acetal rearrangement of levoglucosenone and cyclohexanone Michael adducts and the possibilities of its use in the synthesis of native topology lactones. Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02506-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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7
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Diastereoselective sulfa-Michael reactions controlled by a biomass-derived chiral auxiliary. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.05.051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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8
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Xu J, Hu L. Asymmetric one-pot synthesis of five- and six-membered lactones via dynamic covalent kinetic resolution: Exploring the regio- and stereoselectivities of lipase. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.02.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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9
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Abstract
Efficient conditions have been developed for the diastereoselective aziridination of the biomass pyrolysis product (−)-levoglucosenone, via the reaction of primary aliphatic amines with 3-iodolevoglucosenone. In contrast to the reactions of aliphatic amines, the use of 4-methoxyaniline resulted in an aza-Michael-initiated dimerisation reaction, and 1,3-diphenylurea gave a 2-imidazolidinone. The aziridine products were transformed using the aza-Wharton reaction, affording novel sulfonamide and amine-substituted 6,8-dioxabicyclo[3.2.1]oct-3-enes with potential as sp3-rich chiral scaffolds.
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10
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Li H, Zhao L, Liu Y, Zhang X, Li W, Jing L, Huang J, Wang W. An Efficient Palladium Nanoparticles Catalytic System for Suzuki Coupling Reactions. CHINESE J ORG CHEM 2019. [DOI: 10.6023/cjoc201904069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Ledingham ET, Greatrex BW. Diastereoselective Weitz-Scheffer epoxidation of levoglucosenone for the synthesis of isolevoglucosenone and derivatives. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.08.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Faizullina LK, Galimova YS, Khalilova YA, Salikhov SM, Valeev FA. Aldol-type transformations of levoglucosenone-derived medium-sized keto lactones. MENDELEEV COMMUNICATIONS 2018. [DOI: 10.1016/j.mencom.2018.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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13
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Kim SW, Ledingham ET, Kudo S, Greatrex BW, Sperry J. Bio-Based Chiral Amines via Aza-Michael Additions to (-)-Levoglucosenone Under Aqueous Conditions. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800388] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Shi-Wei Kim
- Centre for Green Chemical Science; University of Auckland; 23 Symonds Street Auckland New Zealand
| | - Edward T. Ledingham
- School of Science and Technology; University of New England; Armidale, N SW Australia
| | - Shinji Kudo
- Institute for Materials Chemistry and Engineering; Kyushu University; 6-1 Kasuga Koen 816-8580 Kasuga Japan
| | - Ben W. Greatrex
- School of Science and Technology; University of New England; Armidale, N SW Australia
| | - Jonathan Sperry
- Centre for Green Chemical Science; University of Auckland; 23 Symonds Street Auckland New Zealand
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14
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Tsai YH, Borini Etichetti CM, Di Benedetto C, Girardini JE, Martins FT, Spanevello RA, Suárez AG, Sarotti AM. Synthesis of Triazole Derivatives of Levoglucosenone As Promising Anticancer Agents: Effective Exploration of the Chemical Space through retro-aza-Michael//aza-Michael Isomerizations. J Org Chem 2018; 83:3516-3528. [DOI: 10.1021/acs.joc.7b03141] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Yi-hsuan Tsai
- Instituto de Química Rosario (IQUIR, CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario 2000, Argentina
| | - Carla M. Borini Etichetti
- Instituto de Biología Molecular y Celular de Rosario (IBR, CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Ocampo y Esmeralda, Rosario 2000, Argentina
| | - Carolina Di Benedetto
- Instituto de Biología Molecular y Celular de Rosario (IBR, CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Ocampo y Esmeralda, Rosario 2000, Argentina
| | - Javier E. Girardini
- Instituto de Biología Molecular y Celular de Rosario (IBR, CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Ocampo y Esmeralda, Rosario 2000, Argentina
| | - Felipe Terra Martins
- Instituto de Química, Universidade Federal de Goiás, Campus Samambaia, Goiânia, GO CP 131, 74001-970, Brazil
| | - Rolando A. Spanevello
- Instituto de Química Rosario (IQUIR, CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario 2000, Argentina
| | - Alejandra G. Suárez
- Instituto de Química Rosario (IQUIR, CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario 2000, Argentina
| | - Ariel M. Sarotti
- Instituto de Química Rosario (IQUIR, CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario 2000, Argentina
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15
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Li J, Yang S, Wu W, Jiang H. Recent Advances in Pd-Catalyzed Cross-Coupling Reaction in Ionic Liquids. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701509] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; 510640 Guangzhou China
| | - Shaorong Yang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; 510640 Guangzhou China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; 510640 Guangzhou China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; 510640 Guangzhou China
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16
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Comba MB, Tsai YH, Sarotti AM, Mangione MI, Suárez AG, Spanevello RA. Levoglucosenone and Its New Applications: Valorization of Cellulose Residues. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701227] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- María B. Comba
- Instituto de Química Rosario; Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario - CONICET; Suipacha 531 S2002LRK Rosario Argentina
| | - Yi-hsuan Tsai
- Instituto de Química Rosario; Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario - CONICET; Suipacha 531 S2002LRK Rosario Argentina
| | - Ariel M. Sarotti
- Instituto de Química Rosario; Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario - CONICET; Suipacha 531 S2002LRK Rosario Argentina
| | - María I. Mangione
- Instituto de Química Rosario; Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario - CONICET; Suipacha 531 S2002LRK Rosario Argentina
| | - Alejandra G. Suárez
- Instituto de Química Rosario; Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario - CONICET; Suipacha 531 S2002LRK Rosario Argentina
| | - Rolando A. Spanevello
- Instituto de Química Rosario; Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario - CONICET; Suipacha 531 S2002LRK Rosario Argentina
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17
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Greatrex BW, Meisner J, Glover SA, Raverty W. Support for a Dioxyallyl Cation in the Mechanism Leading to (−)-Levoglucosenone. J Org Chem 2017; 82:12294-12299. [DOI: 10.1021/acs.joc.7b02109] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ben W. Greatrex
- School
of Science and Technology, University of New England, Armidale, New South Wales 2351, Australia
| | - Jan Meisner
- Institute
for Theoretical Chemistry, University of Stuttgart, Pfaffenwaldring
55, 70569 Stuttgart, Germany
| | - Stephen A. Glover
- School
of Science and Technology, University of New England, Armidale, New South Wales 2351, Australia
| | - Warwick Raverty
- Circa
Group, Bio-21 Institute, Melbourne, Victoria 3052, Australia
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18
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Ledingham ET, Stockton KP, Greatrex BW. Efficient Synthesis of an Indinavir Precursor from Biomass-Derived (–)-Levoglucosenone. Aust J Chem 2017. [DOI: 10.1071/ch17227] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Lignocellulosic biomass pyrolysis with acid catalysis selectively produces the useful chiral synthon 6,8-dioxabicyclo[3.2.1]oct-2-ene-4-one ((–)-levoglucosenone, LGO). In this report, LGO was used to prepare (3R,5S)-3-benzyl-5-(hydroxymethyl)-4,5-dihydrofuran-2(3H)-one, which is an intermediate used in the construction of antivirals including the protease inhibitor indinavir. To achieve the synthesis, the hydrogenated derivative of LGO was functionalised using aldol chemistry and various aromatic aldehydes were used to show the scope of the reaction. Choice of base affected reaction times and the best yields were obtained using 1,1,3,3-tetramethylguanidine. Hydrogenation of the α-benzylidene-substituted bicyclic system afforded a 4 : 3 equatorial/axial mixture of isomers, which was equilibrated to a 97 : 3 mixture under basic conditions. Subsequent Baeyer–Villiger reaction afforded the target lactone in 57 % overall yield for four steps, a route that avoids the protection and strong base required in the traditional approach. The aldol route is contrasted with the α-alkylation and a Baylis–Hillman approach that also both start with LGO.
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19
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Stockton KP, Greatrex BW. Synthesis of enantiopure cyclopropyl esters from (−)-levoglucosenone. Org Biomol Chem 2016; 14:7520-8. [DOI: 10.1039/c6ob00933f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Levoglucosenone was converted into the GABAC agonists (−)-TAMP, (+)-TAMP and an advanced intermediate used for the synthesis of the selective glutamate receptor antagonist PCCG-4.
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Affiliation(s)
- Kieran P. Stockton
- School of Science and Technology
- University of New England
- Armidale
- Australia
| | - Ben W. Greatrex
- School of Science and Technology
- University of New England
- Armidale
- Australia
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