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Wang WY, Wang BP, Su HS, Wei MM, Wei YT, Niu FX. Key role of K + and Ca 2+ in high-yield ethanol production by S. Cerevisiae from concentrated sugarcane molasses. Microb Cell Fact 2024; 23:123. [PMID: 38724968 PMCID: PMC11080136 DOI: 10.1186/s12934-024-02401-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024] Open
Abstract
BACKGROUND Saccharomyces cerevisiae is an important microorganism in ethanol synthesis, and with sugarcane molasses as the feedstock, ethanol is being synthesized sustainably to meet growing demands. However, high-concentration ethanol fermentation based on high-concentration sugarcane molasses-which is needed for reduced energy consumption of ethanol distillation at industrial scale-is yet to be achieved. RESULTS In the present study, to identify the main limiting factors of this process, adaptive laboratory evolution and high-throughput screening (Py-Fe3+) based on ARTP (atmospheric and room-temperature plasma) mutagenesis were applied. We identified high osmotic pressure, high temperature, high alcohol levels, and high concentrations of K+, Ca2+, K+ and Ca2+ (K+&Ca2+), and sugarcane molasses as the main limiting factors. The robust S. cerevisiae strains of NGT-F1, NGW-F1, NGC-F1, NGK+, NGCa2+ NGK+&Ca2+-F1, and NGTM-F1 exhibited high tolerance to the respective limiting factor and exhibited increased yield. Subsequently, ethanol synthesis, cell morphology, comparative genomics, and gene ontology (GO) enrichment analysis were performed in a molasses broth containing 250 g/L total fermentable sugars (TFS). Additionally, S. cerevisiae NGTM-F1 was used with 250 g/L (TFS) sugarcane molasses to synthesize ethanol in a 5-L fermenter, giving a yield of 111.65 g/L, the conversion of sugar to alcohol reached 95.53%. It is the highest level of physical mutagenesis yield at present. CONCLUSION Our results showed that K+ and Ca2+ ions primarily limited the efficient production of ethanol. Then, subsequent comparative transcriptomic GO and pathway analyses showed that the co-presence of K+ and Ca2+ exerted the most prominent limitation on efficient ethanol production. The results of this study might prove useful by promoting the development and utilization of green fuel bio-manufactured from molasses.
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Affiliation(s)
- Wei-Yang Wang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou, 545006, China
- Guangxi Microorganism and Enzyme Research Center of Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, 530004, Guangxi, China
| | - Bei-Ping Wang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou, 545006, China
| | - Hai-Song Su
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou, 545006, China
| | - Mei-Ming Wei
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou, 545006, China
| | - Yu-Tuo Wei
- Guangxi Microorganism and Enzyme Research Center of Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, 530004, Guangxi, China
| | - Fu-Xing Niu
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Guangxi University of Science and Technology, Liuzhou, 545006, China.
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Yan Z, Pan Y, Huang M, Liu JZ. De Novo Pterostilbene Production from Glucose Using Modular Coculture Engineering in Escherichia coli. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:516-528. [PMID: 38130104 DOI: 10.1021/acs.jafc.3c06629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Pterostilbene, a derivative of resveratrol, is of increasing interest due to its increased bioavailability and potential health benefits. Sustainable production of pterostilbene is important, especially given the challenges of traditional plant extraction and chemical synthesis methods. While engineered microbial cell factories provide a potential alternative for pterostilbene production, most approaches necessitate feeding intermediate compounds. To address these limitations, we adopted a modular coculture engineering strategy, dividing the pterostilbene biosynthetic pathway between two engineered E. coli strains. Using a combination of gene knockout, atmospheric and room-temperature plasma mutagenesis, and error-prone PCR-based whole genome shuffling to engineer strains for the coculture system, we achieved a pterostilbene production titer of 134.84 ± 9.28 mg/L from glucose using a 1:3 inoculation ratio and 0.1% dimethyl sulfoxide supplementation. This represents the highest reported de novo production titer. Our results underscore the potential of coculture systems and metabolic balance in microbial biosynthesis.
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Affiliation(s)
- Zhibo Yan
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Yuyang Pan
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Mingtao Huang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Jian-Zhong Liu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
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Tang M, Pan X, Yang T, You J, Zhu R, Yang T, Zhang X, Xu M, Rao Z. Multidimensional engineering of Escherichia coli for efficient synthesis of L-tryptophan. BIORESOURCE TECHNOLOGY 2023; 386:129475. [PMID: 37451510 DOI: 10.1016/j.biortech.2023.129475] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 07/05/2023] [Accepted: 07/07/2023] [Indexed: 07/18/2023]
Abstract
Development of microbial cell factory for L-tryptophan (L-trp) production has received widespread attention but still requires extensive efforts due to weak metabolic flux distribution and low yield. Here, the riboswitch-based high-throughput screening (HTS) platform was established to construct a powerful L-trp-producing chassis cell. To facilitate L-trp biosynthesis, gene expression was regulated by promoter and N-terminal coding sequences (NCS) engineering. Modules of degradation, transport and by-product synthesis related to L-trp production were also fine-tuned. Next, a novel transcription factor YihL was excavated to negatively regulate L-trp biosynthesis. Self-regulated promoter-mediated dynamic regulation of branch pathways was performed and cofactor supply was improved for further L-trp biosynthesis. Finally, without extra addition, the yield of strain Trp30 reached 42.5 g/L and 0.178 g/g glucose after 48 h of cultivation in 5-L bioreactor. Overall, strategies described here worked up a promising method combining HTS and multidimensional regulation for developing cell factories for products in interest.
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Affiliation(s)
- Mi Tang
- Key Laboratory of Industrial Biotechnology of the Ministry of Education, Laboratory of Applied Microorganisms and Metabolic Engineering, School of Biotechnology, Jiangnan University, Wuxi 214122, China; Yixing Institute of Food and Biotechnology Co., Ltd, Yixing 214200, China
| | - Xuewei Pan
- Key Laboratory of Industrial Biotechnology of the Ministry of Education, Laboratory of Applied Microorganisms and Metabolic Engineering, School of Biotechnology, Jiangnan University, Wuxi 214122, China; Yixing Institute of Food and Biotechnology Co., Ltd, Yixing 214200, China
| | - Tianjin Yang
- Key Laboratory of Industrial Biotechnology of the Ministry of Education, Laboratory of Applied Microorganisms and Metabolic Engineering, School of Biotechnology, Jiangnan University, Wuxi 214122, China; Yixing Institute of Food and Biotechnology Co., Ltd, Yixing 214200, China
| | - Jiajia You
- Key Laboratory of Industrial Biotechnology of the Ministry of Education, Laboratory of Applied Microorganisms and Metabolic Engineering, School of Biotechnology, Jiangnan University, Wuxi 214122, China; Yixing Institute of Food and Biotechnology Co., Ltd, Yixing 214200, China
| | - Rongshuai Zhu
- Key Laboratory of Industrial Biotechnology of the Ministry of Education, Laboratory of Applied Microorganisms and Metabolic Engineering, School of Biotechnology, Jiangnan University, Wuxi 214122, China; Yixing Institute of Food and Biotechnology Co., Ltd, Yixing 214200, China
| | - Taowei Yang
- Key Laboratory of Industrial Biotechnology of the Ministry of Education, Laboratory of Applied Microorganisms and Metabolic Engineering, School of Biotechnology, Jiangnan University, Wuxi 214122, China; Yixing Institute of Food and Biotechnology Co., Ltd, Yixing 214200, China
| | - Xian Zhang
- Key Laboratory of Industrial Biotechnology of the Ministry of Education, Laboratory of Applied Microorganisms and Metabolic Engineering, School of Biotechnology, Jiangnan University, Wuxi 214122, China; Yixing Institute of Food and Biotechnology Co., Ltd, Yixing 214200, China
| | - Meijuan Xu
- Key Laboratory of Industrial Biotechnology of the Ministry of Education, Laboratory of Applied Microorganisms and Metabolic Engineering, School of Biotechnology, Jiangnan University, Wuxi 214122, China; Yixing Institute of Food and Biotechnology Co., Ltd, Yixing 214200, China
| | - Zhiming Rao
- Key Laboratory of Industrial Biotechnology of the Ministry of Education, Laboratory of Applied Microorganisms and Metabolic Engineering, School of Biotechnology, Jiangnan University, Wuxi 214122, China; Yixing Institute of Food and Biotechnology Co., Ltd, Yixing 214200, China.
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Bo T, Wu C, Wang Z, Jiang H, Wang F, Chen N, Li Y. Multiple Metabolic Engineering Strategies to Improve Shikimate Titer in Escherichia coli. Metabolites 2023; 13:747. [PMID: 37367905 DOI: 10.3390/metabo13060747] [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: 03/09/2023] [Revised: 06/08/2023] [Accepted: 06/09/2023] [Indexed: 06/28/2023] Open
Abstract
Shikimate is a valuable chiral precursor for synthesizing oseltamivir (Tamiflu®) and other chemicals. High production of shikimate via microbial fermentation has attracted increasing attention to overcome the unstable and expensive supply of shikimate extracted from plant resources. The current cost of microbial production of shikimate via engineered strains is still unsatisfactory, and thus more metabolic strategies need to be investigated to further increase the production efficiency. In this study, we first constructed a shikimate E. coli producer through the application of the non-phosphoenolpyruvate: carbohydrate phosphotransferase system (non-PTS) glucose uptake pathway, the attenuation of the shikimate degradation metabolism, and the introduction of a mutant of feedback-resistant 3-deoxy-D-arabino-heptulosonate 7-phosphate (DAHP) synthase. Inspired by the natural presence of bifunctional 3-dehydroquinate dehydratase (DHD)-shikimate dehydrogenase (SDH) enzyme in plants, we then designed an artificial fusion protein of DHD-SDH to decrease the accumulation of the byproduct 3-dehydroshikimate (DHS). Subsequently, a repressed shikimate kinase (SK) mutant was selected to promote shikimate accumulation without the supplementation of expensive aromatic substances. Furthermore, EsaR-based quorum sensing (QS) circuits were employed to regulate the metabolic flux distribution between cell growth and product synthesis. The final engineered strain dSA10 produced 60.31 g/L shikimate with a yield of 0.30 g/g glucose in a 5 L bioreactor.
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Affiliation(s)
- Taidong Bo
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Chen Wu
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Zeting Wang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Hao Jiang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Feiao Wang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Ning Chen
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, China
- National and Local United Engineering Lab of Metabolic Control Fermentation Technology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Yanjun Li
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, China
- National and Local United Engineering Lab of Metabolic Control Fermentation Technology, Tianjin University of Science and Technology, Tianjin 300457, China
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Ren X, Hu K, Qin L, Wu D, Guo Z, Wang S, Hu Y. Development of ZnO nanoflowers-assisted DNAzyme-based electrochemical platform for invertase and glucose oxidase-dominated biosensing. Anal Chim Acta 2022; 1232:340438. [DOI: 10.1016/j.aca.2022.340438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/11/2022] [Accepted: 09/22/2022] [Indexed: 11/16/2022]
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Metabolic Engineering of Shikimic Acid Biosynthesis Pathway for the Production of Shikimic Acid and Its Branched Products in Microorganisms: Advances and Prospects. Molecules 2022; 27:molecules27154779. [PMID: 35897952 PMCID: PMC9332510 DOI: 10.3390/molecules27154779] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/10/2022] [Accepted: 07/12/2022] [Indexed: 02/06/2023] Open
Abstract
The shikimate pathway is a necessary pathway for the synthesis of aromatic compounds. The intermediate products of the shikimate pathway and its branching pathway have promising properties in many fields, especially in the pharmaceutical industry. Many important compounds, such as shikimic acid, quinic acid, chlorogenic acid, gallic acid, pyrogallol, catechol and so on, can be synthesized by the shikimate pathway. Among them, shikimic acid is the key raw material for the synthesis of GS4104 (Tamiflu®), an inhibitor of neuraminidase against avian influenza virus. Quininic acid is an important intermediate for synthesis of a variety of raw chemical materials and drugs. Gallic acid and catechol receive widespread attention as pharmaceutical intermediates. It is one of the hotspots to accumulate many kinds of target products by rationally modifying the shikimate pathway and its branches in recombinant strains by means of metabolic engineering. This review considers the effects of classical metabolic engineering methods, such as central carbon metabolism (CCM) pathway modification, key enzyme gene modification, blocking the downstream pathway on the shikimate pathway, as well as several expansion pathways and metabolic engineering strategies of the shikimate pathway, and expounds the synthetic biology in recent years in the application of the shikimate pathway and the future development direction.
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Lu Q, Zhou XL, Liu JZ. Adaptive laboratory evolution and shuffling of Escherichia coli to enhance its tolerance and production of astaxanthin. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2022; 15:17. [PMID: 35418156 PMCID: PMC8851715 DOI: 10.1186/s13068-022-02118-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 02/10/2022] [Indexed: 01/01/2023]
Abstract
Background Astaxanthin is one of the strongest antioxidants in nature and has been widely used in aquaculture, food, cosmetic and pharmaceutical industries. Numerous stresses caused in the process of a large scale-culture, such as high acetate concentration, high osmolarity, high level of reactive oxygen species, high glucose concentration and acid environment, etc., limit cell growth to reach the real high cell density, thereby affecting astaxanthin production. Results We developed an adaptive laboratory evolution (ALE) strategy to enhance the production of chemicals by improving strain tolerance against industrial fermentation conditions. This ALE strategy resulted in 18.5% and 53.7% increases in cell growth and astaxanthin production in fed-batch fermentation, respectively. Whole-genome resequencing showed that 65 mutations with amino acid substitution were identified in 61 genes of the shuffled strain Escherichia coli AST-4AS. CRISPR interference (CRISPRi) and activation (CRISPRa) revealed that the shuffled strain with higher astaxanthin production may be associated with the mutations of some stress response protein genes, some fatty acid biosynthetic genes and rppH. Repression of yadC, ygfI and rcsC, activation of rnb, envZ and recC further improved the production of astaxanthin in the shuffled strain E. coli AST-4AS. Simultaneous deletion of yadC and overexpression of rnb increased the production of astaxanthin by 32% in the shuffled strain E. coli AST-4AS. Conclusion This ALE strategy will be powerful in engineering microorganisms for the high-level production of chemicals. Supplementary Information The online version contains supplementary material available at 10.1186/s13068-022-02118-w.
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Affiliation(s)
- Qian Lu
- Institute of Synthetic Biology, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Xiao-Ling Zhou
- Institute of Synthetic Biology, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Jian-Zhong Liu
- Institute of Synthetic Biology, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China.
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8
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Yan ZB, Liang JL, Niu FX, Shen YP, Liu JZ. Enhanced Production of Pterostilbene in Escherichia coli Through Directed Evolution and Host Strain Engineering. Front Microbiol 2021; 12:710405. [PMID: 34690954 PMCID: PMC8530161 DOI: 10.3389/fmicb.2021.710405] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 09/10/2021] [Indexed: 01/03/2023] Open
Abstract
Pterostilbene is a derivative of resveratrol with a higher bioavailability and biological activity, which shows antioxidant, anti-inflammatory, antitumor, and antiaging activities. Here, directed evolution and host strain engineering were used to improve the production of pterostilbene in Escherichia coli. First, the heterologous biosynthetic pathway enzymes of pterostilbene, including tyrosine ammonia lyase, p-coumarate: CoA ligase, stilbene synthase, and resveratrol O-methyltransferase, were successively directly evolved through error-prone polymerase chain reaction (PCR). Four mutant enzymes with higher activities of in vivo and in vitro were obtained. The directed evolution of the pathway enzymes increased the pterostilbene production by 13.7-fold. Then, a biosensor-guided genome shuffling strategy was used to improve the availability of the precursor L-tyrosine of the host strain E. coli TYR-30 used for the production of pterostilbene. A shuffled E. coli strain with higher L-tyrosine production was obtained. The shuffled strain harboring the evolved pathway produced 80.04 ± 5.58 mg/l pterostilbene, which is about 2.3-fold the highest titer reported in literatures.
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Affiliation(s)
- Zhi-Bo Yan
- Institute of Synthetic Biology, Biomedical Center, Guangdong Province Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Jing-Long Liang
- Institute of Synthetic Biology, Biomedical Center, Guangdong Province Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, China.,College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Fu-Xing Niu
- Institute of Synthetic Biology, Biomedical Center, Guangdong Province Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Yu-Ping Shen
- Institute of Synthetic Biology, Biomedical Center, Guangdong Province Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Jian-Zhong Liu
- Institute of Synthetic Biology, Biomedical Center, Guangdong Province Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
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He Y, Huang Y, Xu Z, Xie W, Luo Y, Li F, Zhu X, Shi X. Stereodivergent Syntheses of All Stereoisomers of (−)‐Shikimic Acid: Development of a Chiral Pool for the Diverse Polyhydroxy‐cyclohexenoid (or ‐cyclohexanoid) Bioactive Molecules. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yun‐Gang He
- Engineering Research Center of Pharmaceutical Process Chemistry of the Ministry of Education School of Pharmacy East China University of Science and Technology 130 Mei-Long Road Shanghai 200237 P. R. China
| | - Yong‐Kang Huang
- Engineering Research Center of Pharmaceutical Process Chemistry of the Ministry of Education School of Pharmacy East China University of Science and Technology 130 Mei-Long Road Shanghai 200237 P. R. China
| | - Zhang‐Li Xu
- Engineering Research Center of Pharmaceutical Process Chemistry of the Ministry of Education School of Pharmacy East China University of Science and Technology 130 Mei-Long Road Shanghai 200237 P. R. China
| | - Wen‐Jing Xie
- Engineering Research Center of Pharmaceutical Process Chemistry of the Ministry of Education School of Pharmacy East China University of Science and Technology 130 Mei-Long Road Shanghai 200237 P. R. China
| | - Yong‐Qiang Luo
- Engineering Research Center of Pharmaceutical Process Chemistry of the Ministry of Education School of Pharmacy East China University of Science and Technology 130 Mei-Long Road Shanghai 200237 P. R. China
| | - Feng‐Lei Li
- Engineering Research Center of Pharmaceutical Process Chemistry of the Ministry of Education School of Pharmacy East China University of Science and Technology 130 Mei-Long Road Shanghai 200237 P. R. China
| | - Xing‐Liang Zhu
- Engineering Research Center of Pharmaceutical Process Chemistry of the Ministry of Education School of Pharmacy East China University of Science and Technology 130 Mei-Long Road Shanghai 200237 P. R. China
| | - Xiao‐Xin Shi
- Engineering Research Center of Pharmaceutical Process Chemistry of the Ministry of Education School of Pharmacy East China University of Science and Technology 130 Mei-Long Road Shanghai 200237 P. R. China
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Zhu XL, Luo YQ, Wang L, Huang YK, He YG, Xie WJ, Liu SL, Shi XX. Novel Stereoselective Syntheses of (+)-Streptol and (-)-1 -epi-Streptol Starting from Naturally Abundant (-)-Shikimic Acid. ACS OMEGA 2021; 6:17103-17112. [PMID: 34250367 PMCID: PMC8264934 DOI: 10.1021/acsomega.1c02502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
Novel highly stereoselective syntheses of (+)-streptol and (-)-1-epi-streptol starting from naturally abundant (-)-shikimic acid were described in this article. (-)-Shikimic acid was first converted to the common key intermediate by 11 steps in 40% yield. It was then converted to (+)-streptol by three steps in 72% yield, and it was also converted to (-)-1-epi-streptol by one step in 90% yield. In summary, (+)-streptol and (-)-1-epi-streptol were synthesized from (-)-shikimic acid by 14 and 12 steps in 29 and 36% overall yields, respectively.
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Affiliation(s)
- Xing-Liang Zhu
- Engineering
Research Center of Pharmaceutical Process Chemistry of the Ministry
of Education, School of Pharmacy, East China
University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
| | - Yong-Qiang Luo
- Engineering
Research Center of Pharmaceutical Process Chemistry of the Ministry
of Education, School of Pharmacy, East China
University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
| | - Lei Wang
- Engineering
Research Center of Pharmaceutical Process Chemistry of the Ministry
of Education, School of Pharmacy, East China
University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
| | - Yong-Kang Huang
- Engineering
Research Center of Pharmaceutical Process Chemistry of the Ministry
of Education, School of Pharmacy, East China
University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
| | - Yun-Gang He
- Engineering
Research Center of Pharmaceutical Process Chemistry of the Ministry
of Education, School of Pharmacy, East China
University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
| | - Wen-Jing Xie
- Engineering
Research Center of Pharmaceutical Process Chemistry of the Ministry
of Education, School of Pharmacy, East China
University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
| | - Shi-Ling Liu
- Zhejiang
Arthur Pharmaceutical Co. Ltd., 3556 Linggongtang Road, Jiake Life Science Park Building 3, Daqiao Town, Nanhu District, Jiaxing, Zhejiang 314000, P. R. China
| | - Xiao-Xin Shi
- Engineering
Research Center of Pharmaceutical Process Chemistry of the Ministry
of Education, School of Pharmacy, East China
University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
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