1
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Tang F, Feng YS, Yang W, Xu HJ. Synergistic Photoredox and Iron Catalyzed 1,2-Thiosulfonylation of Alkenes with Thiophenols and Sulfonyl Chlorides. Org Lett 2024; 26:236-240. [PMID: 38149800 DOI: 10.1021/acs.orglett.3c03900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
Herein, a three-component 1,2-thiosulfonylation of alkenes with thiophenols and sulfonyl chlorides via synergistic photoredox and iron catalysis is described. Compared with previous studies, this protocol avoids tedious pre-synthesis of thiosulfonates and employs more readily accessible sulfonyl chlorides as a sulfonation reagent. Moreover, the reaction exhibits high compatibility with styrenes and unactivated alkenes as well as diverse sulfonyl chlorides, especially sulfamoyl chlorides. Preliminary mechanism investigations reveal that a radical pathway is involved in the catalytic cycle.
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Affiliation(s)
- Fei Tang
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Yi-Si Feng
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Wenqing Yang
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Hua-Jian Xu
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
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2
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Deeksha, Sathish E, Kiran, Singh R. Access to Sterically Hindered Thioethers (α-Thioamides) Under Mild Conditions Using α-Halohydroxamates: Application toward 1,4-Benzothiazinones and 4,1-Benzothiazepinones. J Org Chem 2023; 88:901-908. [PMID: 36576371 DOI: 10.1021/acs.joc.2c02274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Herein, we report a new and highly efficient approach for synthesizing congested α-thioamides under mild reaction conditions (mild base, room temperature, and short duration) using α-halo hydroxamates as direct alkylating agents. The reaction works well with both (hetero)aryl and alkyl thiols, tolerating a broad functional group and diverse substrate scope, including benzeneselenol for selenoether construction. The strategy enables efficient synthesis of biologically relevant 1,4 benzothiazinone and 4,1-benzothiazepinone cores, along with various other functionalized sulfur-based scaffolds of biological importance.
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Affiliation(s)
- Deeksha
- School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Ajmer, Rajasthan 305817, India
| | - Elagandhula Sathish
- School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Ajmer, Rajasthan 305817, India
| | - Kiran
- School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Ajmer, Rajasthan 305817, India
| | - Ritesh Singh
- School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Ajmer, Rajasthan 305817, India
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3
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Mukherjee S, Pramanik A. Mild and Expeditious Synthesis of Sulfenyl Enaminones of l-α-Amino Esters and Aryl/Alkyl Amines through NCS-Mediated Sulfenylation. ACS OMEGA 2021; 6:33805-33821. [PMID: 34926928 PMCID: PMC8675011 DOI: 10.1021/acsomega.1c05058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 11/18/2021] [Indexed: 06/14/2023]
Abstract
Sulfenylation or selenylation of enaminones of l-α-amino esters requires mild reaction conditions due to the presence of a racemization-prone chiral center and reactive side chains. An N-chlorosuccinimide (NCS)-mediated methodology has been developed for rapid sulfenylation of enaminones of l-α-amino esters and aryl/alkyl amines at room temperature in open air under metal-free conditions. Enaminones of l-α-amino esters bearing aliphatic, aromatic, and heterocyclic side chains react efficiently with diverse aryl/alkyl/heteroaryl thiols (R1SH) in the presence of NCS to afford a library of biologically important sulfenyl enaminones in good-to-excellent yields (71-90%). Under similar reaction conditions, the enaminones also react with benzeneselenol to produce selenyl enaminones in good yield (73-83%). The NCS-mediated pathway generates sulfenyl chloride (R1SCl) as an intermediate which leads to rapid sulfenylation of enaminones through cross-dehydrogenative coupling (CDC) under mild reaction conditions.
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Affiliation(s)
- Sayan Mukherjee
- Department of Chemistry, University
of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
| | - Animesh Pramanik
- Department of Chemistry, University
of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
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4
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Thiocysteine lyases as polyketide synthase domains installing hydropersulfide into natural products and a hydropersulfide methyltransferase. Nat Commun 2021; 12:5672. [PMID: 34584078 PMCID: PMC8479088 DOI: 10.1038/s41467-021-25798-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 09/01/2021] [Indexed: 12/02/2022] Open
Abstract
Nature forms S-S bonds by oxidizing two sulfhydryl groups, and no enzyme installing an intact hydropersulfide (-SSH) group into a natural product has been identified to date. The leinamycin (LNM) family of natural products features intact S-S bonds, and previously we reported an SH domain (LnmJ-SH) within the LNM hybrid nonribosomal peptide synthetase (NRPS)-polyketide synthase (PKS) assembly line as a cysteine lyase that plays a role in sulfur incorporation. Here we report the characterization of an S-adenosyl methionine (SAM)-dependent hydropersulfide methyltransferase (GnmP) for guangnanmycin (GNM) biosynthesis, discovery of hydropersulfides as the nascent products of the GNM and LNM hybrid NRPS-PKS assembly lines, and revelation of three SH domains (GnmT-SH, LnmJ-SH, and WsmR-SH) within the GNM, LNM, and weishanmycin (WSM) hybrid NRPS-PKS assembly lines as thiocysteine lyases. Based on these findings, we propose a biosynthetic model for the LNM family of natural products, featuring thiocysteine lyases as PKS domains that directly install a -SSH group into the GNM, LNM, or WSM polyketide scaffold. Genome mining reveals that SH domains are widespread in Nature, extending beyond the LNM family of natural products. The SH domains could also be leveraged as biocatalysts to install an -SSH group into other biologically relevant scaffolds. Enzymes installing an intact hydropersulfide (-SSH) group into natural products have so far not been identified. Here, the authors report the characterization of an S-adenosyl methionine-dependent hydropersulfide methyltransferase (GnmP) for guangnanmycin biosynthesis, and identification of three SH domains within several NRPS-PKS assembly lines as thiocysteine lyases.
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5
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Matviitsuk A, Panger JL, Denmark SE. Katalytische enantioselektive Sulfenofunktionalisierung von Alkenen: Entwicklung und aktuelle Fortschritte. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005920] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Anastassia Matviitsuk
- Roger Adams Laboratory Department of Chemistry University of Illinois Urbana Illinois 61801 USA
| | - Jesse L. Panger
- Roger Adams Laboratory Department of Chemistry University of Illinois Urbana Illinois 61801 USA
| | - Scott E. Denmark
- Roger Adams Laboratory Department of Chemistry University of Illinois Urbana Illinois 61801 USA
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6
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Matviitsuk A, Panger JL, Denmark SE. Catalytic, Enantioselective Sulfenofunctionalization of Alkenes: Development and Recent Advances. Angew Chem Int Ed Engl 2020; 59:19796-19819. [PMID: 32452077 PMCID: PMC7936392 DOI: 10.1002/anie.202005920] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Indexed: 12/13/2022]
Abstract
The last decade has witnessed a burgeoning of new methods for the enantioselective vicinal difunctionalization of alkenes initiated by electrophilic sulfenyl group transfer. The addition of sulfenium ions to alkenes results in the generation of chiral, non-racemic thiiranium ions. These highly reactive intermediates are susceptible to attack by a myriad of nucleophiles in a stereospecific ring-opening event to afford anti 1,2-sulfenofunctionalized products. The practical application of sulfenium ion transfer has been enabled by advances in the field of Lewis base catalysis. This Review will chronicle the initial discovery and characterization of thiiranium ion intermediates followed by the determination of their configurational stability and the challenges of developing enantioselective variants. Once the framework for the reactivity and stability of thiiranium ions has been established, a critical analysis of pioneering studies will be presented. Finally, a comprehensive discussion of modern synthetic applications will be categorized around the type of nucleophile employed for sulfenofunctionalization.
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Affiliation(s)
- Anastassia Matviitsuk
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois, 61801, USA
| | - Jesse L Panger
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois, 61801, USA
| | - Scott E Denmark
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois, 61801, USA
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7
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Francioso A, Baseggio Conrado A, Mosca L, Fontana M. Chemistry and Biochemistry of Sulfur Natural Compounds: Key Intermediates of Metabolism and Redox Biology. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:8294158. [PMID: 33062147 PMCID: PMC7545470 DOI: 10.1155/2020/8294158] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 06/28/2020] [Accepted: 07/29/2020] [Indexed: 12/24/2022]
Abstract
Sulfur contributes significantly to nature chemical diversity and thanks to its particular features allows fundamental biological reactions that no other element allows. Sulfur natural compounds are utilized by all living beings and depending on the function are distributed in the different kingdoms. It is no coincidence that marine organisms are one of the most important sources of sulfur natural products since most of the inorganic sulfur is metabolized in ocean environments where this element is abundant. Terrestrial organisms such as plants and microorganisms are also able to incorporate sulfur in organic molecules to produce primary metabolites (e.g., methionine, cysteine) and more complex unique chemical structures with diverse biological roles. Animals are not able to fix inorganic sulfur into biomolecules and are completely dependent on preformed organic sulfurous compounds to satisfy their sulfur needs. However, some higher species such as humans are able to build new sulfur-containing chemical entities starting especially from plants' organosulfur precursors. Sulfur metabolism in humans is very complicated and plays a central role in redox biochemistry. The chemical properties, the large number of oxidation states, and the versatile reactivity of the oxygen family chalcogens make sulfur ideal for redox biological reactions and electron transfer processes. This review will explore sulfur metabolism related to redox biochemistry and will describe the various classes of sulfur-containing compounds spread all over the natural kingdoms. We will describe the chemistry and the biochemistry of well-known metabolites and also of the unknown and poorly studied sulfur natural products which are still in search for a biological role.
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Affiliation(s)
- Antonio Francioso
- Department of Biochemical Sciences “A. Rossi Fanelli”, Sapienza University of Rome, 00185 Rome, Italy
- Department of Organic Chemistry, Instituto Universitario de Bio-Orgánica Antonio González, University of La Laguna, La Laguna, 38296 Tenerife, Spain
| | - Alessia Baseggio Conrado
- Department of Biochemical Sciences “A. Rossi Fanelli”, Sapienza University of Rome, 00185 Rome, Italy
| | - Luciana Mosca
- Department of Biochemical Sciences “A. Rossi Fanelli”, Sapienza University of Rome, 00185 Rome, Italy
| | - Mario Fontana
- Department of Biochemical Sciences “A. Rossi Fanelli”, Sapienza University of Rome, 00185 Rome, Italy
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8
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Zhang Y, Wong HN, Wu XY, Han J. Chiral iminophosphorane catalyzed asymmetric sulfenylation of 2-substituted alkylcyanoacetates. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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9
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Li M, Song W, Dong K, Zheng Y. One-pot synthesis of alkynylthiocyanates by phase-transfer reagent. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151503] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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10
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Luo HY, Dong JW, Xie YY, Song XF, Zhu D, Ding T, Liu Y, Chen ZM. Lewis Base/Brønsted Acid Co-Catalyzed Asymmetric Thiolation of Alkenes with Acid-Controlled Divergent Regioselectivity. Chemistry 2019; 25:15411-15418. [PMID: 31489999 DOI: 10.1002/chem.201904028] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Indexed: 11/08/2022]
Abstract
A divergent strategy for the facile preparation of various enantioenriched phenylthio-substituted lactones was developed based on Lewis base/Brønsted acid co-catalyzed thiolation of homoallylic acids. The acid-controlled regiodivergent cyclization (6-endo vs. 5-exo) and acid-mediated stereoselective rearrangement of phenylthio-substituted lactones were explored. Experimental and computational studies were performed to clarify the origins of the regioselectivity and enantioselectivity. The calculation results suggest that C-O and C-S bond formation might occur simultaneously, without formation of a commonly supposed catalyst-coordinated thiiranium ion intermediate and the potential π-π stacking between substrate and SPh as an important factor in the enantio-determining step. Finally, this methodology was applied in the rapid syntheses of the bioactive natural products (+)-ricciocarpin A and (R)-dodecan-4-olide.
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Affiliation(s)
- Hui-Yun Luo
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Jia-Wei Dong
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Yu-Yang Xie
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Xu-Feng Song
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Deng Zhu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Tongmei Ding
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Yuanyuan Liu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Zhi-Min Chen
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
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11
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Xie Y, Chen Z, Luo H, Shao H, Tu Y, Bao X, Cao R, Zhang S, Tian J. Lewis Base/Brønsted Acid Co‐catalyzed Enantioselective Sulfenylation/Semipinacol Rearrangement of Di‐ and Trisubstituted Allylic Alcohols. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201907115] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yu‐Yang Xie
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Zhi‐Min Chen
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Hui‐Yun Luo
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Hui Shao
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Yong‐Qiang Tu
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 P. R. China
| | - Xiaoguang Bao
- College of Chemistry Chemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Industrial Park Suzhou Jiangsu 215123 P. R. China
| | - Ren‐Fei Cao
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Shu‐Yu Zhang
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Jin‐Miao Tian
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
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12
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Xie YY, Chen ZM, Luo HY, Shao H, Tu YQ, Bao X, Cao RF, Zhang SY, Tian JM. Lewis Base/Brønsted Acid Co-catalyzed Enantioselective Sulfenylation/Semipinacol Rearrangement of Di- and Trisubstituted Allylic Alcohols. Angew Chem Int Ed Engl 2019; 58:12491-12496. [PMID: 31293063 DOI: 10.1002/anie.201907115] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Indexed: 12/29/2022]
Abstract
An enantioselective sulfenylation/semipinacol rearrangement of 1,1-disubstituted and trisubstituted allylic alcohols was accomplished with a chiral Lewis base and a chiral Brønsted acid as cocatalysts, generating various β-arylthio ketones bearing an all-carbon quaternary center in moderate to excellent yields and excellent enantioselectivities. These chiral arylthio ketone products are common intermediates with many applications, for example, in the design of new chiral catalysts/ligands and the total synthesis of natural products. Computational studies (DFT calculations) were carried out to explain the enantioselectivity and the role of the chiral Brønsted acid. Additionally, the synthetic utility of this method was exemplified by an enantioselective total synthesis of (-)-herbertene and a one-pot synthesis of a chiral sulfoxide and sulfone.
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Affiliation(s)
- Yu-Yang Xie
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Zhi-Min Chen
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Hui-Yun Luo
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Hui Shao
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Yong-Qiang Tu
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China.,State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Xiaoguang Bao
- College of Chemistry Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road Suzhou Industrial Park, Suzhou, Jiangsu, 215123, P. R. China
| | - Ren-Fei Cao
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Shu-Yu Zhang
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Jin-Miao Tian
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
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13
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Luo HY, Xie YY, Song XF, Dong JW, Zhu D, Chen ZM. Lewis base-catalyzed asymmetric sulfenylation of alkenes: construction of sulfenylated lactones and application to the formal syntheses of (-)-nicotlactone B and (-)-galbacin. Chem Commun (Camb) 2019; 55:9367-9370. [PMID: 31317982 DOI: 10.1039/c9cc04758a] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient method for the preparation of chiral sulfenylated lactones has been described based on Lewis base-catalyzed enantioselective sulfenylation of unsaturated carboxylic acids. The scope of this method includes two enantioselective cyclization reactions: 5-endo and 6-exo thiolactonizations of alkenes. Two types of lactones were obtained with up to 95% ee and 99% yield. Additionally, this methodology has been applied in the formal syntheses of bioactive natural products (-)-nicotlactone B and (-)-galbacin.
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Affiliation(s)
- Hui-Yun Luo
- School of Chemistry and Chemical Engineering & Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
| | - Yu-Yang Xie
- School of Chemistry and Chemical Engineering & Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
| | - Xu-Feng Song
- School of Chemistry and Chemical Engineering & Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
| | - Jia-Wei Dong
- School of Chemistry and Chemical Engineering & Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
| | - Deng Zhu
- School of Chemistry and Chemical Engineering & Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
| | - Zhi-Min Chen
- School of Chemistry and Chemical Engineering & Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
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14
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Maji B. Stereoselective Haliranium, Thiiranium and Seleniranium Ion‐Triggered Friedel–Crafts‐Type Alkylations for Polyene Cyclizations. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900028] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Biswajit Maji
- Department of ChemistryIndira Gandhi National Tribal University Amarkantak – 484886 Madhya Pradesh India
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15
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Ye AH, Zhang Y, Xie YY, Luo HY, Dong JW, Liu XD, Song XF, Ding T, Chen ZM. TMSCl-Catalyzed Electrophilic Thiocyano Oxyfunctionalization of Alkenes Using N-Thiocyano-dibenzenesulfonimide. Org Lett 2019; 21:5106-5110. [PMID: 31247772 DOI: 10.1021/acs.orglett.9b01706] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Numerous electrophilic thiocyano oxyfunctionalization reactions of alkenes have been achieved using N-thiocyano-dibenzenesulfonimide, which is a new electrophilic thiocyanation reagent and could be easily prepared in two steps from dibenzenesulfonimide. This approach provides efficient, simple, and modular methods for the formation of SCN-containing heterocycles such as lactones, tetrahydrofurans, dihydrofurans, and dihydrobenzofurans in moderate to excellent yields. Meanwhile, diverse oxa-quaternary centers were rapidly constructed. Additionally, this protocol is free of transition metals and features broad substrate toleraance and mild reaction conditions.
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Affiliation(s)
- Ai-Hui Ye
- Affiliated Sixth People's Hospital South Campus and School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , P. R. China
| | - Ye Zhang
- Affiliated Sixth People's Hospital South Campus and School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , P. R. China
| | - Yu-Yang Xie
- Affiliated Sixth People's Hospital South Campus and School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , P. R. China
| | - Hui-Yun Luo
- Affiliated Sixth People's Hospital South Campus and School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , P. R. China
| | - Jia-Wei Dong
- Affiliated Sixth People's Hospital South Campus and School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , P. R. China
| | - Xiao-Dong Liu
- Affiliated Sixth People's Hospital South Campus and School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , P. R. China
| | - Xu-Feng Song
- Affiliated Sixth People's Hospital South Campus and School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , P. R. China
| | - Tongmei Ding
- Affiliated Sixth People's Hospital South Campus and School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , P. R. China
| | - Zhi-Min Chen
- Affiliated Sixth People's Hospital South Campus and School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs , Shanghai Jiao Tong University , 800 Dongchuan Road , Shanghai 200240 , P. R. China
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16
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Yu G, Wang Q, Liu S, Zhang X, Che Q, Zhang G, Zhu T, Gu Q, Li D. Methylsulfonylated Polyketides Produced by Neosartorya udagawae HDN13-313 via Exogenous Addition of Small Molecules. JOURNAL OF NATURAL PRODUCTS 2019; 82:998-1001. [PMID: 30785753 DOI: 10.1021/acs.jnatprod.9b00035] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Two new polyketides modified with a rare methylsulfonyl group, 3-methoxy-6-methyl-5-(methylsulfonyl)benzene-1,2,4-triol (1) and neosartoryone A (2), along with a biogenetically related compound (3), were isolated from Neosartorya udagawae HDN13-313 cultivated with the DNA methyltransferase inhibitor 5-azacytidine. The methylsulfonyl group of 1 and 2 was proven to be derived from DMSO, which was used as the solvent to dissolve 5-azacytidine. This is the first report of a fungus that can achieve a sulfonylation-like modification of natural products utilizing DMSO as a sulfur source. Compound 2 showed lipid-lowering activity in vitro comparable to simvastatin.
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Affiliation(s)
- Guihong Yu
- 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
| | - Qiuying Wang
- 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
| | - Shan Liu
- Marine Biomedical Research Institute of Qingdao , Qingdao 266003 , People's Republic of China
| | - Xiaomin Zhang
- 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
| | - Qian Che
- 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
| | - Guojian Zhang
- 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
- Laboratory for Marine Drugs and Bioproducts of Qingdao Pilot National Laboratory for Marine Science and Technology , Qingdao 266237 , People's Republic of China
| | - Tianjiao Zhu
- 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
- Laboratory for Marine Drugs and Bioproducts of Qingdao Pilot National Laboratory for Marine Science and Technology , Qingdao 266237 , People's Republic of China
| | - Qianqun Gu
- 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
| | - Dehai Li
- 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
- Laboratory for Marine Drugs and Bioproducts of Qingdao Pilot National Laboratory for Marine Science and Technology , Qingdao 266237 , People's Republic of China
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17
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Böhm MJ, Golz C, Rüter I, Alcarazo M. Two-Step Synthesis of Unsymmetrical Diaryl Sulfides by Electrophilic Thiolation of Non-functionalized (Hetero)arenes. Chemistry 2018; 24:15026-15035. [PMID: 29981257 DOI: 10.1002/chem.201802806] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 06/25/2018] [Indexed: 11/08/2022]
Abstract
This article reports the efficient preparation of a series of unsymmetrically substituted thioethers through a two-step procedure consisting of an initial metal-free C-H sulfenylation of electron-rich (hetero)arenes with newly prepared succinylthioimidazolium salts. Subsequent reaction of the arylthioimidazolium intermediates with Grignard reagents afford the desired thioethers. The synthetic protocol described is modular, scalable, and high yielding, and provides access to sulfides that are not easy to obtain through the existing methodologies. Importantly, no prefunctionalization of the initial (hetero)arene is required.
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Affiliation(s)
- Marvin J Böhm
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstr. 2, 37077, Göttingen, Germany
| | - Christopher Golz
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstr. 2, 37077, Göttingen, Germany
| | - Isabelle Rüter
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstr. 2, 37077, Göttingen, Germany
| | - Manuel Alcarazo
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstr. 2, 37077, Göttingen, Germany
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18
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Marakalala MB, Mmutlane EM, Kinfe HH. β-Hydroxy sulfides and their syntheses. Beilstein J Org Chem 2018; 14:1668-1692. [PMID: 30013693 PMCID: PMC6036969 DOI: 10.3762/bjoc.14.143] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 06/13/2018] [Indexed: 12/19/2022] Open
Abstract
Sulfur-containing natural products are ubiquitous in nature, their most abundant source being marine organisms since sulfur, in the form of the sulfate ion, is the second most abundant anion in sea water after chloride. As part of natural products, sulfur can appear in a multitude of combinations and oxidation states: thiol, sulfide (acyclic or heterocyclic), disulfide, sulfoxide, sulfonate, thioaminal, hemithioacetal, various thioesters, thiocarbamate and isothiocyanate. This review article focuses on β-hydroxy sulfides and analogs; their presence in natural products, general protocols for their synthesis, and examples of their application in target oriented synthesis.
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Affiliation(s)
| | - Edwin M Mmutlane
- Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park 2006, South Africa
| | - Henok H Kinfe
- Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park 2006, South Africa
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19
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Barbero H, Díez-Poza C, Barbero A. The Oxepane Motif in Marine Drugs. Mar Drugs 2017; 15:E361. [PMID: 29140270 PMCID: PMC5706050 DOI: 10.3390/md15110361] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 11/03/2017] [Accepted: 11/08/2017] [Indexed: 12/12/2022] Open
Abstract
Oceans have shown to be a remarkable source of natural products. The biological properties of many of these compounds have helped to produce great advances in medicinal chemistry. Within them, marine natural products containing an oxepanyl ring are present in a great variety of algae, sponges, fungus and corals and show very important biological activities, many of them possessing remarkable cytotoxic properties against a wide range of cancer cell lines. Their rich chemical structures have attracted the attention of many researchers who have reported interesting synthetic approaches to these targets. This review covers the most prominent examples of these types of compounds, focusing the discussion on the isolation, structure determination, medicinal properties and total synthesis of these products.
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Affiliation(s)
- Héctor Barbero
- GIR MIOMeT, IU CINQUIMA/Inorganic Chemistry, University of Valladolid, Campus Miguel Delibes, 47011 Valladolid, Spain.
| | - Carlos Díez-Poza
- Department of Organic Chemistry, University of Valladolid, Campus Miguel Delibes, 47011 Valladolid, Spain.
| | - Asunción Barbero
- Department of Organic Chemistry, University of Valladolid, Campus Miguel Delibes, 47011 Valladolid, Spain.
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20
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Hartmann E, Denmark SE. Structural, Mechanistic, Spectroscopic, and Preparative Studies on the Lewis Base Catalyzed, Enantioselective Sulfenofunctionalization of Alkenes. Helv Chim Acta 2017; 100. [PMID: 29311750 DOI: 10.1002/hlca.201700158] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The full details of mechanistic investigation on enantioselective sulfenofunctionalization of alkenes under Lewis base catalysis are described. Solution spectroscopic identification of the catalytically active sulfenylating agent has been accomplished along with the spectroscopic identification of putative thiiranium ion intermediates generated in the enantiodetermining step. The structural insights gleaned from these studies informed the design of new catalyst architectures to improve enantioselectivity. In addition, structural modification of the sulfenylating agents had a significant and salutary effect on the enantioselectivity of sulfenofunctionalization which was demonstrated to be general for trans disubstituted alkenes. Whereas electronic modulation had little effect on the rate and selectivity, steric bulk on arylsulfenylphthalimides was very beneficial.
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Affiliation(s)
- Eduard Hartmann
- Department of Chemistry, University of Illinois, 600 S. Mathews Ave. Urbana, IL, 61801
| | - Scott E Denmark
- Department of Chemistry, University of Illinois, 600 S. Mathews Ave. Urbana, IL, 61801
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21
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Synthesis and Structural Modification of Marine Natural Products. Molecules 2017; 22:molecules22060882. [PMID: 28587140 PMCID: PMC6152746 DOI: 10.3390/molecules22060882] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 05/23/2017] [Accepted: 05/24/2017] [Indexed: 11/16/2022] Open
Abstract
In the last decades, marine natural products (MNPs), have attracted extensive interest from both chemists and pharmacologists due to their chemical and bioactive diversities. This special issue, collecting total synthesis and structural modification of six different type of bioactive MNPs, is expected to inspire and attract more research effects invested into MNP research.
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22
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23
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Beno BR, Yeung KS, Bartberger MD, Pennington LD, Meanwell NA. A Survey of the Role of Noncovalent Sulfur Interactions in Drug Design. J Med Chem 2015; 58:4383-438. [DOI: 10.1021/jm501853m] [Citation(s) in RCA: 468] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Brett R. Beno
- Department of Computer-Assisted Drug Design, Bristol-Myers Squibb Research and Development, 5 Research Parkway Wallingford Connecticut 06492, United States
| | - Kap-Sun Yeung
- Department of Discovery Chemistry, Bristol-Myers Squibb Research and Development, 5 Research Parkway Wallingford Connecticut 06492, United States
| | - Michael D. Bartberger
- Department of Therapeutic Discovery, Amgen Inc., One Amgen Center Drive Thousand Oaks California 91320, United States
| | - Lewis D. Pennington
- Department of Therapeutic Discovery, Amgen Inc., One Amgen Center Drive Thousand Oaks California 91320, United States
| | - Nicholas A. Meanwell
- Department of Discovery Chemistry, Bristol-Myers Squibb Research and Development, 5 Research Parkway Wallingford Connecticut 06492, United States
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24
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Yoshida S, Sugimura Y, Hazama Y, Nishiyama Y, Yano T, Shimizu S, Hosoya T. A mild and facile synthesis of aryl and alkenyl sulfides via copper-catalyzed deborylthiolation of organoborons with thiosulfonates. Chem Commun (Camb) 2015; 51:16613-6. [DOI: 10.1039/c5cc07463k] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple, efficient, and odorless deborylthiolation of aryl- and alkenylborons with thiosulfonates has been achieved under mild conditions using a copper catalyst.
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Affiliation(s)
- Suguru Yoshida
- Laboratory of Chemical Bioscience
- Institute of Biomaterials and Bioengineering
- Tokyo Medical and Dental University
- Tokyo 101-0062
- Japan
| | - Yasuyuki Sugimura
- Department of Pathological Cell Biology
- Medical Research Institute
- Tokyo Medical and Dental University
- Tokyo 113-8510
- Japan
| | - Yuki Hazama
- Laboratory of Chemical Bioscience
- Institute of Biomaterials and Bioengineering
- Tokyo Medical and Dental University
- Tokyo 101-0062
- Japan
| | - Yoshitake Nishiyama
- Laboratory of Chemical Bioscience
- Institute of Biomaterials and Bioengineering
- Tokyo Medical and Dental University
- Tokyo 101-0062
- Japan
| | - Takahisa Yano
- Laboratory of Chemical Bioscience
- Institute of Biomaterials and Bioengineering
- Tokyo Medical and Dental University
- Tokyo 101-0062
- Japan
| | - Shigeomi Shimizu
- Department of Pathological Cell Biology
- Medical Research Institute
- Tokyo Medical and Dental University
- Tokyo 113-8510
- Japan
| | - Takamitsu Hosoya
- Laboratory of Chemical Bioscience
- Institute of Biomaterials and Bioengineering
- Tokyo Medical and Dental University
- Tokyo 101-0062
- Japan
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25
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Mechanistic, crystallographic, and computational studies on the catalytic, enantioselective sulfenofunctionalization of alkenes. Nat Chem 2014; 6:1056-64. [PMID: 25411883 DOI: 10.1038/nchem.2109] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 09/30/2014] [Indexed: 01/18/2023]
Abstract
The stereocontrolled introduction of vicinal heteroatomic substituents into organic molecules is one of the most powerful ways of adding value and function. Although many methods exist for the introduction of oxygen- and nitrogen-containing substituents, the number of stereocontrolled methods for the introduction of sulfur-containing substituents pales by comparison. Previous reports from our laboratories have described sulfenofunctionalizations of alkenes that construct carbon-sulfur bonds vicinal to carbon-oxygen, carbon-nitrogen or carbon-carbon bonds with high levels of diastereospecificity and enantioselectivity. This process is enabled by the concept of Lewis-base activation of Lewis acids, which provides activation of Group 16 electrophiles. To provide a foundation for the expansion of substrate scope and improved selectivities, we have undertaken a comprehensive study of the catalytically active species. Insights gleaned from kinetic, crystallographic and computational methods have led to the introduction of a new family of sulfenylating agents that provide significantly enhanced selectivities.
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26
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Hu W, Song H, Sae Her A, Bak DW, Naowarojna N, Elliott SJ, Qin L, Chen X, Liu P. Bioinformatic and biochemical characterizations of C-S bond formation and cleavage enzymes in the fungus Neurospora crassa ergothioneine biosynthetic pathway. Org Lett 2014; 16:5382-5. [PMID: 25275953 PMCID: PMC4201327 DOI: 10.1021/ol502596z] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Indexed: 01/03/2023]
Abstract
Ergothioneine is a histidine thiol derivative. Its mycobacterial biosynthetic pathway has five steps (EgtA-E catalysis) with two novel reactions: a mononuclear nonheme iron enzyme (EgtB) catalyzed oxidative C-S bond formation and a PLP-mediated C-S lyase (EgtE) reaction. Our bioinformatic and biochemical analyses indicate that the fungus Neurospora crassa has a more concise ergothioneine biosynthetic pathway because its nonheme iron enzyme, Egt1, makes use of cysteine instead of γ-Glu-Cys as the substrate. Such a change of substrate preference eliminates the competition between ergothioneine and glutathione biosyntheses. In addition, we have identified the N. crassa C-S lyase (NCU11365) and reconstituted its activity in vitro, which makes the future ergothioneine production through metabolic engineering feasible.
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Affiliation(s)
- Wen Hu
- State
Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine
and Health, Chinese Academy of Sciences, Guangzhou, P. R. China
- Department
of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Heng Song
- Department
of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Ampon Sae Her
- Department
of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Daniel W. Bak
- Department
of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Nathchar Naowarojna
- Department
of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Sean J. Elliott
- Department
of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Li Qin
- State
Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine
and Health, Chinese Academy of Sciences, Guangzhou, P. R. China
| | - Xiaoping Chen
- State
Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine
and Health, Chinese Academy of Sciences, Guangzhou, P. R. China
| | - Pinghua Liu
- Department
of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
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27
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Jiang B, Yi M, Tu M, Wang S, Tu S. Brønsted Acid‐Promoted Divergent Reactions of Enaminones: Efficient Synthesis of Fused Pyrroles with Different Substitution Patterns. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200280] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Bo Jiang
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China, Fax: (+86)‐516‐8350‐0065; phone: (+86)‐516‐8350‐0065
| | - Mian‐Shuai Yi
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China, Fax: (+86)‐516‐8350‐0065; phone: (+86)‐516‐8350‐0065
| | - Man‐Su Tu
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China, Fax: (+86)‐516‐8350‐0065; phone: (+86)‐516‐8350‐0065
| | - Shu‐Liang Wang
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China, Fax: (+86)‐516‐8350‐0065; phone: (+86)‐516‐8350‐0065
| | - Shu‐Jiang Tu
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China, Fax: (+86)‐516‐8350‐0065; phone: (+86)‐516‐8350‐0065
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28
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Chen N, Xu J. Facile synthesis of various substituted taurines, especially syn- and anti-1,2-disubstituted taurines, from nitroolefins. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.01.031] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Jiang CS, Müller WEG, Schröder HC, Guo YW. Disulfide- and multisulfide-containing metabolites from marine organisms. Chem Rev 2011; 112:2179-207. [PMID: 22176580 DOI: 10.1021/cr200173z] [Citation(s) in RCA: 165] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Cheng-Shi Jiang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang High-Tech Park, Shanghai 201203, People's Republic of China
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30
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Girijavallabhan V, Alvarez C, Njoroge FG. Regioselective Cobalt-Catalyzed Addition of Sulfides to Unactivated Alkenes. J Org Chem 2011; 76:6442-6. [DOI: 10.1021/jo201016z] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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31
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Han X, Wu J. Ga(OTf)3-Catalyzed Direct Substitution of Alcohols with Sulfur Nucleophiles. Org Lett 2010; 12:5780-2. [DOI: 10.1021/ol102565b] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Xinping Han
- Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Jimmy Wu
- Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
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Abstract
This review covers the literature published in 2003 for marine natural products, with 619 citations (413 for the period January to December 2003) referring to compounds isolated from marine microorganisms and phytoplankton, green algae, brown algae, red algae, sponges, coelenterates, bryozoans, molluscs, tunicates and echinoderms. The emphasis is on new compounds (656 for 2003), together with their relevant biological activities, source organisms and country or origin. Biosynthetic studies or syntheses that lead to the revision of structures or stereochemistries have been included (78), including any first total syntheses of a marine natural product.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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