1
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Su XZ, Zhang LF, Hu K, An Y, Zhang QP, Tang JW, Yan BC, Li XR, Cai J, Li XN, Sun HD, Jiang SY, Puno PT. Discovery of Natural Potent HMG-CoA Reductase Degraders for Lowering Cholesterol. Angew Chem Int Ed Engl 2024; 63:e202313859. [PMID: 38055195 DOI: 10.1002/anie.202313859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 11/13/2023] [Accepted: 12/05/2023] [Indexed: 12/07/2023]
Abstract
Exploitation of key protected wild plant resources makes great sense, but their limited populations become the major barrier. A particular strategy for breaking this barrier was inspired by the exploration of a resource-saving fungal endophyte Penicillium sp. DG23, which inhabits the key protected wild plant Schisandra macrocarpa. Chemical studies on the cultures of this strain afforded eight novel indole diterpenoids, schipenindolenes A-H (1-8), belonging to six diverse skeleton types. Importantly, semisyntheses suggested some key nonenzymatic reactions constructing these molecules and provided targeted compounds, in particular schipenindolene A (Spid A, 1) with low natural abundance. Remarkably, Spid A was the most potent HMG-CoA reductase (HMGCR) degrader among the indole diterpenoid family. It degraded statin-induced accumulation of HMGCR protein, decreased cholesterol levels and acted synergistically with statin to further lower cholesterol. Mechanistically, transcriptomic and proteomic profiling suggested that Spid A potentially activated the endoplasmic reticulum-associated degradation (ERAD) pathway to enhance the degradation of HMGCR, while simultaneously inhibiting the statin-activated expression of many key enzymes in the cholesterol and fatty acid synthesis pathways, thereby strengthening the efficacy of statins and potentially reducing the side effects of statins. Collectively, this study suggests the potential of Spid A for treating cardiovascular disease.
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Affiliation(s)
- Xiao-Zheng Su
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, 650201, China
| | - Lin-Fei Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, 650201, China
| | - Kun Hu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, 650201, China
| | - Yang An
- Gene Editing Center, School of Life Science and Technology, ShanghaiTech University Shanghai 201210 (China)
| | - Qiao-Peng Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, 650201, China
| | - Jian-Wei Tang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, 650201, China
| | - Bing-Chao Yan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, 650201, China
| | - Xing-Ren Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, 650201, China
| | - Jie Cai
- The Germplasm Bank of Wild Species, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, 650201, China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, 650201, China
| | - Han-Dong Sun
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, 650201, China
| | - Shi-You Jiang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, 650201, China
| | - Pema-Tenzin Puno
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, 650201, China
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2
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Yu L, Nakamura H. Short, Scalable Access to Pyrrovobasine. JACS AU 2023; 3:3000-3004. [PMID: 38034961 PMCID: PMC10685420 DOI: 10.1021/jacsau.3c00595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/02/2023]
Abstract
A concise gram-scale synthesis of pyrrovobasine (1) is reported. Key transformations include a three-step decagram-scale synthesis of the tetracyclic compound, Mn-mediated direct radical cyclization, and the introduction of a naturally rare pyrraline structure. The synthesis is designed to be applicable to gram-scale synthesis using inexpensive and readily available reagents.
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Affiliation(s)
- Longhui Yu
- Department of Chemistry, The
Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong 999077, China
| | - Hugh Nakamura
- Department of Chemistry, The
Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong 999077, China
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3
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Rana N, Patel D, Parmar M, Mukherjee N, Jha PC, Manhas A. Targeting allosteric binding site in methylenetetrahydrofolate dehydrogenase 2 (MTHFD2) to identify natural product inhibitors via structure-based computational approach. Sci Rep 2023; 13:18090. [PMID: 37872243 PMCID: PMC10593809 DOI: 10.1038/s41598-023-45175-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 10/17/2023] [Indexed: 10/25/2023] Open
Abstract
Cancer has been viewed as one of the deadliest diseases worldwide. Among various types of cancer, breast cancer is the most common type of cancer in women. Methylenetetrahydrofolate dehydrogenase 2 (MTHFD2) is a promising druggable target and is overexpressed in cancerous cells, like, breast cancer. We conducted structure-based modeling on the allosteric site of the enzyme. Targeting the allosteric site avoids the problem of drug resistance. Pharmacophore modeling, molecular docking, HYDE assessment, drug-likeness, ADMET predictions, simulations, and free-energy calculations were performed. The RMSD, RMSF, RoG, SASA, and Hydrogen-bonding studies showed that seven candidates displayed stable behaviour. As per the literature, average superimposed simulated structures revealed a similar protein conformational change in the αE'-βf' loop, causing its displacement away from the allosteric site. The MM-PBSA showed tight binding of six compounds with the allosteric pocket. The effect of inhibitors interacting in the allosteric site causes a decrease in the binding energy of J49 (active-site inhibitor), suggesting the effect of allosteric binding. The PCA and FEL analysis revealed the significance of the docked compounds in the stable behaviour of the complexes. The outcome can contribute to the development of potential natural products with drug-like properties that can inhibit the MTHFD2 enzyme.
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Affiliation(s)
- Nisarg Rana
- Department of Chemistry, School of Energy Technology, Pandit Deendayal Energy University, Gandhinagar, 382426, India
| | - Dhaval Patel
- Department of Industrial Biotechnology, Gujarat Biotechnology University, Gandhinagar, India
| | - Meet Parmar
- Department of Industrial Biotechnology, Gujarat Biotechnology University, Gandhinagar, India
| | - Nandini Mukherjee
- Department of Chemistry, School of Energy Technology, Pandit Deendayal Energy University, Gandhinagar, 382426, India
| | - Prakash C Jha
- School of Applied Material Sciences, Central University of Gujarat, Gandhinagar, 382030, India
| | - Anu Manhas
- Department of Chemistry, School of Energy Technology, Pandit Deendayal Energy University, Gandhinagar, 382426, India.
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4
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Pinčeková L, Jančiová E, Berkeš D, Gyepes R, Kolarovič A, Caletková O. Total Synthesis of Hemerocallisamine I Paved by Gram-Scale Synthesis of (2 S,4 S)-4-Hydroxyglutamic Acid Lactone. Molecules 2023; 28:molecules28052177. [PMID: 36903423 PMCID: PMC10037412 DOI: 10.3390/molecules28052177] [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: 02/09/2023] [Revised: 02/24/2023] [Accepted: 02/24/2023] [Indexed: 03/02/2023] Open
Abstract
Total synthesis of the 2-formylpyrrole alkaloid hemerocallisamine I is presented, both in racemic and enantiopure form. Our synthetic strategy involves (2S,4S)-4-hydroxyglutamic acid lactone as the key intermediate. Starting from an achiral substrate, the target stereogenic centers were introduced by means of crystallization-induced diastereomer transformation (CIDT) in a highly stereoselective fashion. A Maillard-type condensation was crucial to constructing the desired pyrrolic scaffold.
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Affiliation(s)
- Lucia Pinčeková
- Institute of Organic Chemistry, Catalysis and Petrochemistry, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
| | - Eva Jančiová
- Institute of Organic Chemistry, Catalysis and Petrochemistry, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
| | - Dušan Berkeš
- Institute of Organic Chemistry, Catalysis and Petrochemistry, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
| | - Róbert Gyepes
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
| | - Andrej Kolarovič
- Department of Chemistry, Faculty of Education, Trnava University, Priemyselná 4, 918 43 Trnava, Slovakia
| | - Oľga Caletková
- Institute of Organic Chemistry, Catalysis and Petrochemistry, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
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5
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Kil YS, Baral A, Jeong BS, Laatikainen P, Liu Y, Han AR, Hong MJ, Kim JB, Choi H, Park PH, Nam JW. Combining NMR and MS to Describe Pyrrole-2-Carbaldehydes in Wheat Bran of Radiation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:13002-13014. [PMID: 36167496 DOI: 10.1021/acs.jafc.2c04771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Nuclear magnetic resonance (NMR) spectroscopy and mass spectrometry (MS) are indispensable analytical tools to provide chemical fingerprints in metabolomics studies. The present study evaluated radiation breeding wheat lines for chemical changes by non-targeted NMR-based metabolomics analysis of bran extracts. Multivariate analysis following spectral binning suggested pyrrole-2-carbaldehydes as chemical markers of four mutant lines with distinct NMR fingerprints in a δH range of 9.28-9.40 ppm. Further NMR and MS data analysis, along with chromatographic fractionation and synthetic preparation, aimed at structure identification of marker metabolites and identified five pyrrole-2-carbaldehydes. Quantum-mechanical driven 1H iterative full spin analysis (QM-HiFSA) on synthetic pyrrole-2-carbaldehydes provided a precise description of complex peak patterns. Biological evaluation of pyrrole-2-carbaldehydes was performed with nine synthetic products, and six compounds showed hepatoprotective effects via modulation of reactive oxygen species production. Given that three out of five identified in wheat bran of radiation were described for hepatoprotective activity, the value of radiation mutation to greatly enhance pyrrole-2-carbaldehyde production was supported.
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Affiliation(s)
- Yun-Seo Kil
- College of Pharmacy, Yeungnam University, Gyeongsan-si, Gyeongsangbuk-do 38541, South Korea
| | - Ananda Baral
- College of Pharmacy, Yeungnam University, Gyeongsan-si, Gyeongsangbuk-do 38541, South Korea
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan-si, Gyeongsangbuk-do 38541, South Korea
| | - Byeong-Seon Jeong
- College of Pharmacy, Yeungnam University, Gyeongsan-si, Gyeongsangbuk-do 38541, South Korea
| | | | - Yang Liu
- Product Quality & Analytical Method Department, United States Pharmacopeial Convention, Rockville, Maryland 20852, United States
| | - Ah-Reum Han
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup-si, Jeollabuk-do 56212, South Korea
| | - Min-Jeong Hong
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup-si, Jeollabuk-do 56212, South Korea
| | - Jin-Baek Kim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup-si, Jeollabuk-do 56212, South Korea
| | - Hyukjae Choi
- College of Pharmacy, Yeungnam University, Gyeongsan-si, Gyeongsangbuk-do 38541, South Korea
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan-si, Gyeongsangbuk-do 38541, South Korea
| | - Pil-Hoon Park
- College of Pharmacy, Yeungnam University, Gyeongsan-si, Gyeongsangbuk-do 38541, South Korea
| | - Joo-Won Nam
- College of Pharmacy, Yeungnam University, Gyeongsan-si, Gyeongsangbuk-do 38541, South Korea
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan-si, Gyeongsangbuk-do 38541, South Korea
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6
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Curpanen S, Poli G, Perez Luna A, Oble J. C3–H Silylation of Furfural Derivatives: Direct Access to a Versatile Synthetic Platform Derived from Biomass. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sébastien Curpanen
- Sorbonne Universite Institut Parisien de Chimie Moléculaire paris FRANCE
| | - Giovanni Poli
- Sorbonne Universite Institut Parisien de Chimie Moléculaire FRANCE
| | | | - Julie Oble
- Sorbonne University IPCM 4 place Jussieu 75005 Paris FRANCE
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7
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Sala R, Kiala G, Veiros LF, Broggini G, Poli G, Oble J. Redox-Neutral Ru(0)-Catalyzed Alkenylation of 2-Carboxaldimine-heterocyclopentadienes. J Org Chem 2022; 87:4640-4648. [PMID: 35290058 DOI: 10.1021/acs.joc.1c03044] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A new Ru3(CO)12-catalyzed directed alkenylation of 2-carboxaldimine-heterocyclopentadienes has been accomplished. This process allows coupling of furan, pyrrole, indole, and thiophene 2-carboxaldimines with electron-poor alkenes such as acrylates, vinylsulfones, and styrenes. This regio- and chemoselective oxidative C-H coupling does not require the presence of an additional sacrificial oxidant. Density functional theory calculations allowed us to propose a mechanism and unveiled the nature of the H2 acceptor.
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Affiliation(s)
- Roberto Sala
- Sorbonne Université, Faculté des Sciences et Ingénierie, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, 4 Place Jussieu, 75005 Paris, France.,Dipartimento di Scienza e Alta Tecnologia (DISAT), Università degli Studi dell'Insubria, Via Valleggio 9, Como (CO) 22100, Italy
| | - Gredy Kiala
- Sorbonne Université, Faculté des Sciences et Ingénierie, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, 4 Place Jussieu, 75005 Paris, France
| | - Luis F Veiros
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisbon, Portugal
| | - Gianluigi Broggini
- Dipartimento di Scienza e Alta Tecnologia (DISAT), Università degli Studi dell'Insubria, Via Valleggio 9, Como (CO) 22100, Italy
| | - Giovanni Poli
- Sorbonne Université, Faculté des Sciences et Ingénierie, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, 4 Place Jussieu, 75005 Paris, France
| | - Julie Oble
- Sorbonne Université, Faculté des Sciences et Ingénierie, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, 4 Place Jussieu, 75005 Paris, France
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8
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Singh N, Singh S, Kohli S, Singh A, Asiki H, Rathee G, Chandra R, Anderson EA. Recent progress in the total synthesis of pyrrole-containing natural products (2011–2020). Org Chem Front 2021. [DOI: 10.1039/d0qo01574a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review discusses total syntheses of pyrrole-containing natural products over the last ten years, highlighting recent advances in the chemistry of pyrroles in the context of their innate reactivity, and their preparation in complex settings.
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Affiliation(s)
- Nidhi Singh
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Snigdha Singh
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Sahil Kohli
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Aarushi Singh
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Hannah Asiki
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Garima Rathee
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Ramesh Chandra
- Department of Chemistry, University of Delhi, Delhi 110007, India
- Dr B. R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India
| | - Edward A. Anderson
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
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9
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Galkin KI, Ananikov VP. The Increasing Value of Biomass: Moving From C6 Carbohydrates to Multifunctionalized Building Blocks via 5-(hydroxymethyl)furfural. ChemistryOpen 2020; 9:1135-1148. [PMID: 33204585 PMCID: PMC7646257 DOI: 10.1002/open.202000233] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/06/2020] [Indexed: 12/26/2022] Open
Abstract
Recent decades have been marked by enormous progress in the field of synthesis and chemistry of 5-(hydroxymethyl)furfural (HMF), an important platform chemical widely recognized as the "sleeping giant" of sustainable chemistry. This multifunctional furanic compound is viewed as a strong link for the transition from the current fossil-based industry to a sustainable one. However, the low chemical stability of HMF significantly undermines its synthetic potential. A possible solution to this problem is synthetic diversification of HMF by modifying it into more stable multifunctional building blocks for further synthetic purposes.
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Affiliation(s)
- Konstantin I. Galkin
- Zelinsky Institute of Organic ChemistryRussian Academy of SciencesLeninsky Prospekt, 47Moscow119991Russia
- N. E. Bauman Moscow State Technical University2nd Baumanskaya Street, 5/1Moscow105005Russia
| | - Valentine P. Ananikov
- Zelinsky Institute of Organic ChemistryRussian Academy of SciencesLeninsky Prospekt, 47Moscow119991Russia
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10
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Sala R, Roudesly F, Veiros LF, Broggini G, Oble J, Poli G. Ru‐Catalyzed Carbonylative Murai Reaction: Directed C3‐Acylation of Biomass‐Derived 2‐Formyl Heteroaromatics. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000249] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Roberto Sala
- Sorbonne Université, Faculté des Sciences et Ingénierie, CNRSInstitut Parisien de Chimie Moléculaire, IPCM 4 place Jussieu 75005 Paris France
- Dipartimento di Scienza e Alta Tecnologia (DISAT)Università degli Studi dell'Insubria Via Valleggio 9 Como (CO) Italy
| | - Fares Roudesly
- Sorbonne Université, Faculté des Sciences et Ingénierie, CNRSInstitut Parisien de Chimie Moléculaire, IPCM 4 place Jussieu 75005 Paris France
| | - Luis F. Veiros
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior TécnicoUniversidade de Lisboa Av Rovisco Pais 1049-001 Lisboa Portugal
| | - Gianluigi Broggini
- Dipartimento di Scienza e Alta Tecnologia (DISAT)Università degli Studi dell'Insubria Via Valleggio 9 Como (CO) Italy
| | - Julie Oble
- Sorbonne Université, Faculté des Sciences et Ingénierie, CNRSInstitut Parisien de Chimie Moléculaire, IPCM 4 place Jussieu 75005 Paris France
| | - Giovanni Poli
- Sorbonne Université, Faculté des Sciences et Ingénierie, CNRSInstitut Parisien de Chimie Moléculaire, IPCM 4 place Jussieu 75005 Paris France
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11
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Lin NP, Chein RJ. Total synthesis and absolute structure of N55, a positive modulator of GLP-1 signaling. Org Biomol Chem 2020; 18:8899-8907. [DOI: 10.1039/d0ob01722a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The absolute structure of N55, a positive modulator of Glucagon-like peptide-1 (GLP-1) signaling, was determined by a 7-step total synthesis with 29% overall yield.
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Affiliation(s)
- Nai-Pin Lin
- Institute of Chemistry
- Academia Sinica
- Taipei 11529
- Taiwan
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12
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Wood J, Furkert DP, Brimble MA. 2-Formylpyrrole natural products: origin, structural diversity, bioactivity and synthesis. Nat Prod Rep 2019; 36:289-306. [DOI: 10.1039/c8np00051d] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
2-Formylpyrroles constitute a large and growing family of bioactive Maillard reaction products found in food, traditional medicine and throughout nature.
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Affiliation(s)
- James M. Wood
- School of Chemical Sciences
- University of Auckland
- Auckland
- New Zealand
| | - Daniel P. Furkert
- School of Chemical Sciences
- University of Auckland
- Auckland
- New Zealand
| | - Margaret A. Brimble
- School of Chemical Sciences
- University of Auckland
- Auckland
- New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery
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13
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Liu Y, Yi X, Luo X, Xi C. MeOTf-Mediated Annulation of Alkylnitriles and Arylalkynes Leading to Polysubstituted NH-Pyrroles. J Org Chem 2017; 82:11391-11398. [DOI: 10.1021/acs.joc.7b01845] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yu Liu
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xiangli Yi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xuewei Luo
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Chanjuan Xi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
- State
Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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14
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Wood JM, Furkert DP, Brimble MA. Total Synthesis and Stereochemical Revision of the 2-Formylpyrrole Alkaloid Hemerocallisamine I. JOURNAL OF NATURAL PRODUCTS 2017; 80:1926-1929. [PMID: 28590122 DOI: 10.1021/acs.jnatprod.7b00314] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The first total synthesis of the 2-formylpyrrole alkaloid hemerocallisamine I is reported. The convergent synthesis features a key Maillard-type condensation of a complex amine derived from cis-4-hydroxy-l-proline with a dihydropyranone, to directly furnish the 2-formylpyrrole ring system. The absolute configuration of hemerocallisamine I has been revised on the basis of optical rotation data obtained for the synthesized compound.
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Affiliation(s)
- James M Wood
- School of Chemical Sciences, The University of Auckland , 23 Symonds Street, Auckland 1142, New Zealand
| | - Daniel P Furkert
- School of Chemical Sciences, The University of Auckland , 23 Symonds Street, Auckland 1142, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland , Private Bag 92019, Auckland 1142, New Zealand
| | - Margaret A Brimble
- School of Chemical Sciences, The University of Auckland , 23 Symonds Street, Auckland 1142, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland , Private Bag 92019, Auckland 1142, New Zealand
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15
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Reddy CR, Panda SA, Ramaraju A. Oxidative Aza-Annulation of Enynyl Azides to 2-Keto/Formyl-1H-pyrroles. J Org Chem 2017; 82:944-949. [DOI: 10.1021/acs.joc.6b02468] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Chada Raji Reddy
- Division
of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500607, India
- Academy
of Scientific
and Innovative Research, New Delhi, India
| | - Sujatarani A. Panda
- Division
of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500607, India
- Academy
of Scientific
and Innovative Research, New Delhi, India
| | - Andhavaram Ramaraju
- Division
of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500607, India
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Kaur H, Kamalov M, Brimble MA. Chemical Synthesis of Peptides Containing Site-Specific Advanced Glycation Endproducts. Acc Chem Res 2016; 49:2199-2208. [PMID: 27672697 DOI: 10.1021/acs.accounts.6b00366] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In nature, proteins, lipids, and nucleic acids can nonenzymatically react with sugars and sugar degradation products to give rise to a diverse range of modifications, known as advanced glycation endproducts (AGEs). These AGEs typically occur at lysine and arginine residues of long-lived proteins, such as collagen, and can modify the structure and function of the native protein. AGEs accumulate during the normal aging process, and AGE formation is dramatically accelerated with diabetes. AGEs have also been implicated in a wide range of debilitating conditions including cardiovascular, renal failure, and neurodegenerative diseases. Thus, there is an ongoing interest in studying the role of AGEs in different aspects of these disorders. Typically, glycated proteins are prepared using nonspecific in vitro incubation techniques. However, this method results in a complex mixture of products which is then employed without further purification. In order to determine the effect of individual AGEs in a peptide sequence, in this Account, we highlight our synthetic methods for site-specifically introducing five frequently occurring AGEs, namely, Nε-(carboxymethyl)lysine (CML), Nε-(carboxyethyl)lysine (CEL), pyrraline, glyoxal-lysine dimer (GOLD), and methylglyoxal-lysine dimer (MOLD) into collagen peptides. Both a collagen model peptide (CMP) and the telopeptide region of human type I α1 collagen (CTP) were chosen due to being prone to glycation and cross-linking in vivo. For the preparation of the AGE-modified collagen peptides, we investigated both the initial preparation of AGE building blocks in solution followed by incorporation into Fmoc-SPPS, as well as an on-resin method whereby AGEs were selectively introduced by modification of the side-chain of an unprotected resin-bound lysine. Both of our synthetic methods enabled the site-specifically modified AGE-containing collagen peptides to be obtained in high purity and yield. In addition, the on-resin method had the added advantage of requiring fewer synthetic steps. We then evaluated the impact of the specific AGEs on the properties of the native protein and found that the AGE modifications protected against proteolytic digestion, enhanced copper binding at physiological pH, and, for the cross-linking AGEs, disrupted the triple helical structure of CMPs. Overall these synthetic methods offered a new strategy for preparing peptides site-specifically modified by AGEs, which can be applied to other peptidic systems, thereby enabling further insights into the biochemical consequences of AGEs.
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Affiliation(s)
- Harveen Kaur
- School
of Chemical Sciences, The University of Auckland, 23 Symonds
Street, Auckland, 1142, New Zealand
| | - Meder Kamalov
- Institute
of Biological Chemistry, Faculty of Chemistry, University of Vienna, Währinger Straße 38, 1090 Vienna, Austria
| | - Margaret A. Brimble
- School
of Chemical Sciences, The University of Auckland, 23 Symonds
Street, Auckland, 1142, New Zealand
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17
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You ZH, Chen YH, Liu YK. From racemic precursors to fully stereocontrolled products: one-pot synthesis of chiral α-amino lactones and lactams. Org Biomol Chem 2016; 14:6316-27. [PMID: 27270561 DOI: 10.1039/c6ob00953k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Substituted racemic lactols or cyclic hemiaminals were directly used as nucleophiles in enamine-based asymmetric amination reactions to access enantioenriched α-amino lactones or lactams via a one-pot sequence. The desired products, which are very important building blocks in organic synthesis but difficult to be prepared in the optically enriched form, could be afforded with two stereogenic centers in high yields with excellent enantioselectivities. Moreover, starting from the racemic precursors and catalyzed by the enantiomeric pair of the catalyst, all possible stereoisomeric products were discretely provided only after simple column chromatography. Additionally, this protocol provides facile access to several novel bicyclic carbamates, and such drug-like heterocyclic compounds should be potentially useful in medicinal chemistry.
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Affiliation(s)
- Zhi-Hao You
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China.
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18
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Wood JM, Furkert DP, Brimble MA. Synthesis of the 2-formylpyrrole spiroketal pollenopyrroside A and structural elucidation of xylapyrroside A, shensongine A and capparisine B. Org Biomol Chem 2016; 14:7659-64. [DOI: 10.1039/c6ob01361a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A convergent synthesis enabled structural elucidation of the 2-formyl pyrrole spiroketals pollenopyrroside A and shensongine A/xylapyrroside A. The key step involves a Maillard-type condensation to furnish the 2-formylpyrrole ring system.
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Affiliation(s)
- James M. Wood
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
| | - Daniel P. Furkert
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
| | - Margaret A. Brimble
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery
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19
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Adhikary ND, Kwon S, Chung WJ, Koo S. One-Pot Conversion of Carbohydrates into Pyrrole-2-carbaldehydes as Sustainable Platform Chemicals. J Org Chem 2015; 80:7693-701. [DOI: 10.1021/acs.joc.5b01349] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Nirmal Das Adhikary
- Department of Energy Science and
Technology and ‡Department of Chemistry, Myong Ji University, Myongji-Ro 116,
Cheoin-Gu, Yongin, Gyeonggi-Do 449-728, Korea
| | - Sunjeong Kwon
- Department of Energy Science and
Technology and ‡Department of Chemistry, Myong Ji University, Myongji-Ro 116,
Cheoin-Gu, Yongin, Gyeonggi-Do 449-728, Korea
| | - Wook-Jin Chung
- Department of Energy Science and
Technology and ‡Department of Chemistry, Myong Ji University, Myongji-Ro 116,
Cheoin-Gu, Yongin, Gyeonggi-Do 449-728, Korea
| | - Sangho Koo
- Department of Energy Science and
Technology and ‡Department of Chemistry, Myong Ji University, Myongji-Ro 116,
Cheoin-Gu, Yongin, Gyeonggi-Do 449-728, Korea
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20
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Kamalov M, Harris PWR, Wood JM, Brimble MA. On resin synthesis and cross-linking of collagen peptides containing the advanced glycation end-product pyrraline via Maillard condensation. Chem Commun (Camb) 2015; 51:9475-8. [DOI: 10.1039/c5cc03052h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Pyrraline and a novel pyrraline-derived cross-link have been incorporated into collagenous peptides via Maillard condensations performed on resin-bound peptide sequences.
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Affiliation(s)
- Meder Kamalov
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
| | - Paul W. R. Harris
- School of Biological Sciences
- The University of Auckland
- Auckland
- New Zealand
| | - James M. Wood
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
| | - Margaret A. Brimble
- School of Chemical Sciences
- The University of Auckland
- Auckland
- New Zealand
- School of Biological Sciences
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21
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Geng HM, Stubbing LA, Li-yang Chen J, Furkert DP, Brimble MA. Synthesis of the Revised Structure of Acortatarin A. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403000] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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22
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Reddy CR, Reddy MD, Dilipkumar U. Total Synthesis of a Pyrrole Lactone Alkaloid, Longanlactone. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402563] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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