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Hwang HJ, Ciufolini MA. Therapies from Thiopeptides. Molecules 2023; 28:7579. [PMID: 38005301 PMCID: PMC10673184 DOI: 10.3390/molecules28227579] [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: 10/07/2023] [Revised: 11/09/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
The first part of this contribution describes solutions that were developed to achieve progressively more efficient syntheses of the thiopeptide natural products, micrococcins P1 and P2 (MP1-MP2), with an eye toward exploring their potential as a source of new antibiotics. Such efforts enabled investigations on the medicinal chemistry of those antibiotics, and inspired the development of the kinase inhibitor, Masitinib®, two candidate oncology drugs, and new antibacterial agents. The studies that produced such therapeutic resources are detailed in the second part. True to the theme of this issue, "Organic Synthesis and Medicinal Chemistry: Two Inseparable Partners", an important message is that the above advances would have never materialized without the support of curiosity-driven, academic synthetic organic chemistry: a beleaguered science that nonetheless has been-and continues to be-instrumental to progress in the biomedical field.
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Affiliation(s)
- Hee-Jong Hwang
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada;
- A&J Science, Ltd., 80 Chumbok Ro, Dong Gu, Daegu 41061, Republic of Korea
| | - Marco A. Ciufolini
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada;
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2
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Zhao L, Xu Y, Chen M, Wu L, Li M, Lu Y, Lu M, Chen Y, Wu X. Design of a chimeric glycosyltransferase OleD for the site-specific O-monoglycosylation of 3-hydroxypyridine in nosiheptide. Microb Biotechnol 2023; 16:1971-1984. [PMID: 37606280 PMCID: PMC10527214 DOI: 10.1111/1751-7915.14332] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/03/2023] [Accepted: 08/07/2023] [Indexed: 08/23/2023] Open
Abstract
To identify the potential role of the 3-hydroxyl group of the pyridine ring in nosiheptide (NOS) for its antibacterial activity against Gram-positive pathogens, enzymatic glycosylation was utilized to regio-selectively create a monoglycosyl NOS derivative, NOS-G. For this purpose, we selected OleD, a UDP glycosyltransferase from Streptomyces antibioticus that has a low productivity for NOS-G. Activity of the enzyme was increased by swapping domains derived from OleI, both single and in combination. Activity enhancement was best in mutant OleD-10 that contained four OleI domains. This chimer was engineered by site-directed mutagenesis (single and in combination) to increase its activity further, whereby variants were screened using a newly-established colorimetric assay. OleD-10 with I117F and T118G substitutions (FG) had an increased NOS-G productivity of 56%, approximately 70 times higher than that of wild-type OleD. The reason for improved activity of FG towards NOS was structurally attributed to a closer distance (<3 Å) between NOS/sugar donor and the catalytic amino acid H25. The engineered enzyme allowed sufficient activity to demonstrate that the produced NOS-G had enhanced stability and aqueous solubility compared to NOS. Using a murine MRSA infection model, it was established that NOS-G resulted in partial protection within 20 h of administration and delayed the death of infected mice. We conclude that 3-hydroxypyridine is a promising site for structural modification of NOS, which may pave the way for producing nosiheptide derivatives as a potential antibiotic for application in clinical treatment.
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Affiliation(s)
- Ling Zhao
- Laboratory of Chemical BiologyCollege of Life Sciences and Technology, China Pharmaceutical UniversityNanjingJiangsu ProvincePR China
| | - Yuncong Xu
- Department of BiochemistryCollege of Life Sciences and Technology, China Pharmaceutical UniversityNanjingJiangsu ProvincePR China
| | - Manting Chen
- Department of BiochemistryCollege of Life Sciences and Technology, China Pharmaceutical UniversityNanjingJiangsu ProvincePR China
| | - Lingrui Wu
- Department of BiochemistryCollege of Life Sciences and Technology, China Pharmaceutical UniversityNanjingJiangsu ProvincePR China
| | - Meng Li
- Laboratory of Chemical BiologyCollege of Life Sciences and Technology, China Pharmaceutical UniversityNanjingJiangsu ProvincePR China
| | - Yuanyuan Lu
- Department of Marine PharmacyCollege of Life Sciences and Technology, China Pharmaceutical UniversityNanjingJiangsu ProvincePR China
| | - Meiling Lu
- Department of BiochemistryCollege of Life Sciences and Technology, China Pharmaceutical UniversityNanjingJiangsu ProvincePR China
| | - Yijun Chen
- Laboratory of Chemical BiologyCollege of Life Sciences and Technology, China Pharmaceutical UniversityNanjingJiangsu ProvincePR China
| | - Xuri Wu
- Department of BiochemistryCollege of Life Sciences and Technology, China Pharmaceutical UniversityNanjingJiangsu ProvincePR China
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Zhang Y, Vinogradov AA, Chang JS, Goto Y, Suga H. Solid-Phase-Based Synthesis of Lactazole-Like Thiopeptides. Org Lett 2022; 24:7894-7899. [DOI: 10.1021/acs.orglett.2c02870] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Yue Zhang
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Alexander A. Vinogradov
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Jun Shi Chang
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yuki Goto
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroaki Suga
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
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Al-Otaibi JS, Costa RA, Costa EV, Tananta VL, Mary YS, Mary YS. Insights into solvation, chemical reactivity, structural, vibrational and anti-hypertensive properties of a thiazolopyrimidine derivative by DFT and MD simulations. Struct Chem 2022. [DOI: 10.1007/s11224-022-01931-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Shen J, Zhao F, Zhu P, Wu F, Chen X, Kang H, Yue Z. Direct determination of nosiheptide residue in animal tissues by liquid chromatography-tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1193:123167. [PMID: 35196626 DOI: 10.1016/j.jchromb.2022.123167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 12/28/2021] [Accepted: 02/07/2022] [Indexed: 11/17/2022]
Abstract
Because only very weak signals of fragment ions of nosiheptide can be obtained, nosiheptide is usually detected by liquid chromatography-tandem mass spectrometry (LC-MS/MS) via the determination of its hydrolyzed degradation product named HMIA in previous studies. The indirect method suffers from several problems, such as complicated samplepreparation, unavailable commercial HMIA, and the risk of the false-positive result by HMIA. However, we found that nosiheptide could produce several significant fragment ions under high collision energy (CE). Therefore, we developed a method for the direct determination of nosiheptide by LC-MS/MS in animal tissues. The sample was extracted with ACN, then degreased with n-hexane, and purified by an HLB solid-phase extraction (SPE) cartridge. After being filtered through the PTFE filter, it was analyzed by LC-MS/MS in selected reaction monitoring (SRM) mode. The influencing factors, such as mobile phase, SPE cartridge, filter material, and matrix effect, were investigated. Nosiheptide showed a good linear relationship (R2 ≥ 0.999) within the concentration range from 0.3 μg/L to 20 μg/L under optimized conditions. The limit of detection (LOD) was 0.3 μg/kg, while the limit of quantification (LOQ) was 1.0 μg/kg in chicken, bovine muscle, swine muscle, and swine liver. The average recoveries at spiked levels of 1.0, 2.0, and 10 μg/kg ranged from 83% to 101%, with the relative standard deviations (RSDs) <12%. Compared with the methods previously reported, our newly developed method was more simple, convenient, and sensitive. Moreover, it was successfully applied for the determination of nosiheptide residue in medicated chicken samples.
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Affiliation(s)
- Jincan Shen
- Food Inspection and Quarantine Technology Center of Shenzhen Customs District, Shenzhen 518045, China
| | - Fengjuan Zhao
- Food Inspection and Quarantine Technology Center of Shenzhen Customs District, Shenzhen 518045, China
| | - Pingping Zhu
- Food Inspection and Quarantine Technology Center of Shenzhen Customs District, Shenzhen 518045, China
| | - Fengqi Wu
- Food Inspection and Quarantine Technology Center of Shenzhen Customs District, Shenzhen 518045, China
| | - Xinyi Chen
- Food Inspection and Quarantine Technology Center of Shenzhen Customs District, Shenzhen 518045, China
| | - Haining Kang
- Food Inspection and Quarantine Technology Center of Shenzhen Customs District, Shenzhen 518045, China
| | - Zhenfeng Yue
- Food Inspection and Quarantine Technology Center of Shenzhen Customs District, Shenzhen 518045, China; Shenzhen Polytechnic, Shenzhen 518045, China.
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6
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Zhang B, Li X, Ai Z, Zhao B, Yu Z, Du Y. Chemoselective Synthesis of Sulfenylated Spiroindolenines from Indolyl-ynones via Organosulfenyl Chloride-Mediated Dearomatizing Spirocyclization. Org Lett 2021; 24:390-394. [PMID: 34964636 DOI: 10.1021/acs.orglett.1c04063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A metal-free sulfenylation/spirocyclization of indolyl-ynones realized by organosulfenyl chloride, generated in situ from the reaction of disulfides and PhICl2, is presented. This cascade one-pot process enables a chemoselective synthesis of diverse sulfenylated spiroindolenines depending on the substituent pattern at the two-position of indolyl-ynones.
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Affiliation(s)
- Beibei Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, 300072 Tianjin, P. R. China
| | - Xiaoxian Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, 300072 Tianjin, P. R. China
| | - Zhenkang Ai
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, 300072 Tianjin, P. R. China
| | - Bingyue Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, 300072 Tianjin, P. R. China
| | - Zhenyang Yu
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, 300072 Tianjin, P. R. China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, 300072 Tianjin, P. R. China
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7
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Majhi S. Applications of ultrasound in total synthesis of bioactive natural products: A promising green tool. ULTRASONICS SONOCHEMISTRY 2021; 77:105665. [PMID: 34298310 PMCID: PMC8322467 DOI: 10.1016/j.ultsonch.2021.105665] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 07/03/2021] [Accepted: 07/05/2021] [Indexed: 05/04/2023]
Abstract
Total synthesisis frequently compared to climbing as it provides a suitable route to reach a high point from the floor, the complex natural product from simple and commercially available materials. The total synthesis has a privileged position of trust in confirming the hypothetical complex structures of natural products despite sophisticated analytical and spectroscopic instrumentation and techniques that are available presently. Moreover, total synthesis is also useful to prepare rare bioactive natural products in the laboratory as several bioactive secondary metabolites are obtained in small quantities from natural sources. The artistic aspect of the total synthesis of bioactive natural products continues to be praised today as it may provide environmental protection through the concept of green or clean chemistry. The use of ultrasound waves as a non-polluting source of energy is of great interest in the field of sustainable and pharmaceutical chemistry as it differs from conventional energy sources in terms of reaction rates, yields, selectivities, and purity of the products. The present review highlights the application of ultrasound as a green tool in the total synthesis of bioactive natural products as well as this article is also aimed to offer an overview of natural sources, structures, and biological activities of the promising natural products for the first time from 2005 to 2020 elegantly.
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Affiliation(s)
- Sasadhar Majhi
- Department of Chemistry (UG & PG), Triveni Devi Bhalotia College, Raniganj, West Bengal 713347, India.
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Xia Y, Huang H, Hu W, Deng GJ. NH 4I-promoted oxidative formation of benzothiazoles and thiazoles from arylacetic acids and phenylalanines with elemental sulfur. Org Biomol Chem 2021; 19:5108-5113. [PMID: 34009226 DOI: 10.1039/d1ob00671a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A NH4I/K3PO4-based catalytic system has been established to enable oxidative formation of thiazole compounds from arylacetic acids and phenylalanines with elemental sulfur. While the three-component reaction of anilines or β-naphthylamines with arylacetic acids and elemental sulfur affords benzo[2,1-d]thiazoles and naphtho[2,1-d]thiazoles, the annulation of phenylalanines with elemental sulfur produces 2-benzyl and 2-benzoylthiazoles. This work well complements previous three-component annulations of benzothiazoles from other coupling partners.
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Affiliation(s)
- Yujia Xia
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
| | - Wei Hu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
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9
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Sheena Mary Y, Shyma Mary Y, Serdaroglu G, Kaya S, Sarojini BK, Umamahesvari H, Mohan BJ. Conformational Analysis, Spectroscopic Insights, Chemical Descriptors, ELF, LOL and Molecular Docking Studies of Potential Pyrimidine Derivative with Biological Activities. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.1924803] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | | | - Goncagül Serdaroglu
- Faculty of Education, Mathematics and Science Education, Sivas Cumhuriyet University, Sivas, Turkey
| | - Savaş Kaya
- Department of Pharmacy, Health Services Vocational School, Sivas Cumhuriyet University, Sivas, Turkey
| | - B. K. Sarojini
- Department of Industrial Chemistry, Mangalore University, Mangalagangothri, Karnataka, India
| | - H. Umamahesvari
- Department of Physics, Srinivasa Institute of Technology and Management Studies (Autonomous), Chittoor, Andhra Pradesh, India
| | - B. J. Mohan
- Department of Chemistry, P.A. College of Engineering, Mangalore, Karnatka, India
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Fan Y, Chen H, Mu N, Wang W, Zhu K, Ruan Z, Wang S. Nosiheptide analogues as potential antibacterial agents via dehydroalanine region modifications: Semi-synthesis, antimicrobial activity and molecular docking study. Bioorg Med Chem 2021; 31:115970. [PMID: 33422909 DOI: 10.1016/j.bmc.2020.115970] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/15/2020] [Accepted: 12/21/2020] [Indexed: 10/22/2022]
Abstract
The frequent and inappropriate use of antibiotics aggravate the variation and evolution of multidrug-resistant bacteria, posing a serious threat to public health. Nosiheptide (NOS) has excellent lethality against a variety of Gram-positive bacteria, however the physical and chemical drawbacks hamper its routine application in clinical practice. In this study, by using NOS as the starting material, a total of 15 NOS analogues (2a-4e) were semi-synthesized via its dehydroalanine residue reacting with monosubstituted anilines. In vitro antimicrobial susceptibilities of NOS and its analogues against two methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus faecium (VRE) clinical isolates were determined by broth microdilution assay to determine the minimum inhibitory concentration (MIC). Antimicrobial susceptibility testing data shown that most of the NOS analogues had a better antibacterial effect than the parent compound, with compound 3c exhibiting the highest antibacterial activity against VRE (MIC = 0.0078 mg/L) and MRSA (MIC < 0.0039 mg/L). Molecular docking of synthetic compounds was also performed to verify the binding interactions of NOS analogues with the target. Our data indicated that compound 3c possesses stronger and more complex intermolecular force than other analogues, which is consistent with the results of the biological activity evaluation. Overall, this study identified a number of potential antibacterial NOS analogues that could act as potent therapeutic agents for multidrug-resistant bacterial infections.
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Affiliation(s)
- Yafei Fan
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Hangfei Chen
- Department of Clinical Laboratory, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Ning Mu
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Wengui Wang
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Kongkai Zhu
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China.
| | - Zhi Ruan
- Department of Clinical Laboratory, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China.
| | - Shoufeng Wang
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
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Siegel D, Johnson TC, Christy MP. Synthesis of the 26-Membered Core of Thiopeptide Natural Products by Scalable Thiazole-Forming Reactions of Cysteine Derivatives and Nitriles. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/s-0040-1706478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractThe increased resistance of bacteria to clinical antibiotics is one of the major dilemmas facing human health and without solutions the problem will grow exponentially worse. Thiopeptide natural products have shown promising antibiotic activities and provide an opportunity for the development of a new class of antibiotics. Attempts to directly translate these compounds into human medicine have been limited due to poor physiochemical properties. The synthesis of the core structure of the 26-membered class of thiopeptide natural products is reported using chemistry that enables the synthesis of large quantities of synthetic intermediates and the common core structure. The use of cysteine/nitrile condensation reactions followed by oxidation to generate thiazoles has been key in enabling large academic scale reactions that in many instances avoided chromatography further aiding in accessing large amounts of key synthetic intermediates.
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Affiliation(s)
- Dionicio Siegel
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California-San Diego
| | - Trevor C. Johnson
- Department of Chemistry & Biochemistry, University of California-San Diego
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12
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Moreira R, Noden M, Taylor SD. Synthesis of Azido Acids and Their Application in the Preparation of Complex Peptides. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1707314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractAzido acids are important synthons for the synthesis of complex peptides. As a protecting group, the azide moiety is atom-efficient, easy to install and can be reduced in the presence of many other protecting groups, making it ideal for the synthesis of branched and/or cyclic peptides. α-Azido acids are less bulky than urethane-protected counterparts and react more effectively in coupling reactions of difficult-to-form peptide and ester bonds. Azido acids can also be used to form azoles on complex intermediates. This review covers the synthesis of azido acids and their application to the total synthesis of complex peptide natural products.1 Introduction2 Synthesis of α-Azido Acids2.1 From α-Amino Acids or Esters2.2 Via α-Substitution2.3 Via Electrophilic Azidation2.4 Via Condensation of N-2-Azidoacetyl-4-Phenylthiazolidin- 2-Thi one Enolates with Aldehydes and Acetals2.5 Synthesis of α,β-Unsaturated α-Azido Acids and Esters3 Synthesis of β-Azido Acids3.1 Preparation of Azidoalanine and 3-Azido-2-aminobutanoic Acids3.2 General Approaches to Preparing β-Azido Acids Other Than Azi doalanine and AABA4 Azido Acids in Total Synthesis4.1 α-Azido Acids4.2 β-Azido Acids and Azido Acids Containing an Azide on the Side
Chain5 Conclusions
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Bird KE, Xander C, Murcia S, Schmalstig AA, Wang X, Emanuele MJ, Braunstein M, Bowers AA. Thiopeptides Induce Proteasome-Independent Activation of Cellular Mitophagy. ACS Chem Biol 2020; 15:2164-2174. [PMID: 32589399 PMCID: PMC7442609 DOI: 10.1021/acschembio.0c00364] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Thiopeptide antibiotics are emerging clinical candidates that exhibit potent antibacterial activity against a variety of intracellular pathogens, including Mycobacterium tuberculosis (Mtb). Many thiopeptides directly inhibit bacterial growth by disrupting protein synthesis. However, recent work has shown that one thiopeptide, thiostrepton (TSR), can also induce autophagy in infected macrophages, which has the potential to be exploited for host-directed therapies against intracellular pathogens, such as Mtb. To better define the therapeutic potential of this class of antibiotics, we studied the host-directed effects of a suite of natural thiopeptides that spans five structurally diverse thiopeptide classes, as well as several analogs. We discovered that thiopeptides as a class induce selective autophagic removal of mitochondria, known as mitophagy. This activity is independent of other biological activities, such as proteasome inhibition or antibiotic activity. We also find that many thiopeptides exhibit potent activity against intracellular Mtb in macrophage infection models. However, the thiopeptide-induced mitophagy occurs outside of pathogen-containing autophagosomes and does not appear to contribute to thiopeptide control of intracellular Mtb. These results expand basic understanding of thiopeptide biology and provide key guidance for the development of new thiopeptide antibiotics and host-directed therapeutics.
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Affiliation(s)
- Kelly E. Bird
- Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Christian Xander
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Sebastian Murcia
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Alan A. Schmalstig
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Xianxi Wang
- Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Michael J. Emanuele
- Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Miriam Braunstein
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Albert A. Bowers
- Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Department of Chemistry, University of North Carolina, Chapel Hill, NC 27599, USA
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Vinogradov AA, Suga H. Introduction to Thiopeptides: Biological Activity, Biosynthesis, and Strategies for Functional Reprogramming. Cell Chem Biol 2020; 27:1032-1051. [PMID: 32698017 DOI: 10.1016/j.chembiol.2020.07.003] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/21/2020] [Accepted: 07/01/2020] [Indexed: 12/16/2022]
Abstract
Thiopeptides (also known as thiazolyl peptides) are structurally complex natural products with rich biological activities. Known for over 70 years for potent killing of Gram-positive bacteria, thiopeptides are experiencing a resurgence of interest in the last decade, primarily brought about by the genomic revolution of the 21st century. Every area of thiopeptide research-from elucidating their biological function and biosynthesis to expanding their structural diversity through genome mining-has made great strides in recent years. These advances lay the foundation for and inspire novel strategies for thiopeptide engineering. Accordingly, a number of diverse approaches are being actively pursued in the hope of developing the next generation of natural-product-inspired therapeutics. Here, we review the contemporary understanding of thiopeptide biological activities, biosynthetic pathways, and approaches to structural and functional reprogramming, with a special focus on the latter.
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Affiliation(s)
- Alexander A Vinogradov
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Hiroaki Suga
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
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15
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Dynamic Optimization of a Fed-Batch Nosiheptide Reactor. Processes (Basel) 2020. [DOI: 10.3390/pr8050587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Nosiheptide is a sulfur-containing peptide antibiotic, showing exceptional activity against critical pathogens such as methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococci (VRE) with livestock applications that can be synthesized via fed-batch fermentation. A simplified mechanistic fed-batch fermentation model for nosiheptide production considers temperature- and pH-dependence of biomass growth, substrate consumption, nosiheptide production and oxygen mass transfer into the broth. Herein, we perform dynamic simulation over a broad range of possible feeding policies to understand and visualize the region of attainable reactor performances. We then formulate a dynamic optimization problem for maximization of nosiheptide production for different constraints of batch duration and operability limits. A direct method for dynamic optimization (simultaneous strategy) is performed in each case to compute the optimal control trajectories. Orthogonal polynomials on finite elements are used to approximate the control and state trajectories allowing the continuous problem to be converted to a nonlinear program (NLP). The resultant large-scale NLP is solved using IPOPT. Optimal operation requires feedrate to be manipulated in such a way that the inhibitory mechanism of the substrate can be avoided, with significant nosiheptide yield improvement realized.
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16
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Wang H, Xu Z, Deng G, Huang H. Selective Formation of 2‐(2‐Aminophenyl)benzothiazoles via Copper‐Catalyzed Aerobic C−C Bond Cleavage of Isatins. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901670] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Hongfen Wang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of ChemistryXiangtan University Xiangtan 411105 People's Republic of China
| | - Zhenhua Xu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of ChemistryXiangtan University Xiangtan 411105 People's Republic of China
| | - Guo‐Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of ChemistryXiangtan University Xiangtan 411105 People's Republic of China
- Beijing National Laboratory for Molecular SciencesChinese Academy of Sciences (CAS) Beijing 100190 People's Republic of China
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of ChemistryXiangtan University Xiangtan 411105 People's Republic of China
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17
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Zhao YQ, Tian JJ, Ai CR, Wang XC. Diiodomethane-Mediated Generation of N-Aryliminium Ions and Subsequent [4 + 2] Cycloadditions with Olefins. J Org Chem 2020; 85:2456-2465. [PMID: 31916760 DOI: 10.1021/acs.joc.9b03148] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, we report a method for in situ generation of N-aryliminium ions via reactions of N,N-dimethylanilines with diiodomethane. We used the method to prepare tetrahydroquinolines via one-pot three-component reactions between N,N-dimethylanilines, diiodomethane, and olefins. This transformation involves initial reaction of the aniline with diiodomethane to form an iodomethylammonium salt, which undergoes fragmentation accompanied by elimination of methyl iodide to give an N-aryliminium ion, which is trapped by the olefin via [4 + 2] cycloaddition to give the final product. This method for generating N-aryliminium ions requires neither a catalyst nor a strong oxidant, suggesting that it can be expected to find broad utility, especially for substrates that are sensitive to Lewis acids, transition metals, or strong oxidants.
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Affiliation(s)
- Yu-Quan Zhao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Jun-Jie Tian
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Chong-Ren Ai
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Xiao-Chen Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
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18
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Wang N, Saidhareddy P, Jiang X. Construction of sulfur-containing moieties in the total synthesis of natural products. Nat Prod Rep 2020; 37:246-275. [DOI: 10.1039/c8np00093j] [Citation(s) in RCA: 221] [Impact Index Per Article: 55.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review surveys the total syntheses of sulfur-containing natural products where sulfur atoms are introduced with different sulfurization agents to construct related sulfur-containing moieties.
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Affiliation(s)
- Nengzhong Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Puli Saidhareddy
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Xuefeng Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- P. R. China
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19
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Oberheide A, Schwenk S, Ronco C, Semmrau LM, Görls H, Arndt HD. Synthesis, Structure, and Cytotoxicity of Urukthapelstatin A Polyazole Cyclopeptide Analogs. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900206] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ansgar Oberheide
- Institut für Organische Chemie und Makromolekulare Chemie; Friedrich-Schiller-Universität; Humboldtstr. 10 07743 Jena Germany
| | - Sebastian Schwenk
- Institut für Organische Chemie und Makromolekulare Chemie; Friedrich-Schiller-Universität; Humboldtstr. 10 07743 Jena Germany
| | - Cyril Ronco
- CNRS UMR7272; Université Côte d'Azur; Institut de Chimie de Nice 28, Avenue Valrose 06108 Nice France
| | - Lisa Maria Semmrau
- Institut für Organische Chemie und Makromolekulare Chemie; Friedrich-Schiller-Universität; Humboldtstr. 10 07743 Jena Germany
| | - Helmar Görls
- Institut für Anorganische und Analytische Chemie; Friedrich-Schiller-Universität; Humboldtstr. 8 07743 Jena Germany
| | - Hans-Dieter Arndt
- Institut für Organische Chemie und Makromolekulare Chemie; Friedrich-Schiller-Universität; Humboldtstr. 10 07743 Jena Germany
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20
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Abstract
This Review is devoted to the chemistry of macrocyclic peptides having heterocyclic fragments in their structure. These motifs are present in many natural products and synthetic macrocycles designed against a particular biochemical target. Thiazole and oxazole are particularly common constituents of naturally occurring macrocyclic peptide molecules. This frequency of occurrence is because the thiazole and oxazole rings originate from cysteine, serine, and threonine residues. Whereas other heteroaryl groups are found less frequently, they offer many insightful lessons that range from conformational control to receptor/ligand interactions. Many options to develop new and improved technologies to prepare natural products have appeared in recent years, and the synthetic community has been pursuing synthetic macrocycles that have no precedent in nature. This Review attempts to summarize progress in this area.
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Affiliation(s)
- Ivan V Smolyar
- Department of Chemistry , Moscow State University , Leninskije Gory , 199991 Moscow , Russia
| | - Andrei K Yudin
- Davenport Research Laboratories, Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
| | - Valentine G Nenajdenko
- Department of Chemistry , Moscow State University , Leninskije Gory , 199991 Moscow , Russia
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21
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Hosoda K, Koyama N, Kanamoto A, Tomoda H. Discovery of Nosiheptide, Griseoviridin, and Etamycin as Potent Anti-Mycobacterial Agents against Mycobacterium avium Complex. Molecules 2019; 24:molecules24081495. [PMID: 30995807 PMCID: PMC6514863 DOI: 10.3390/molecules24081495] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 04/11/2019] [Accepted: 04/15/2019] [Indexed: 11/18/2022] Open
Abstract
Mycobacterium avium complex (MAC) is a serious disease mainly caused by M. avium and M. intracellulare. Although the incidence of MAC infection is increasing worldwide, only a few agents are clinically used, and their therapeutic effects are limited. Therefore, new anti-MAC agents are needed. Approximately 6600 microbial samples were screened for new anti-mycobacterial agents that inhibit the growth of both M. avium and M. intracellulare, and two culture broths derived from marine actinomycete strains OPMA1245 and OPMA1730 had strong activity. Nosiheptide (1) was isolated from the culture broth of OPMA1245, and griseoviridin (2) and etamycin (viridogrisein) (3) were isolated from the culture broth of OPMA1730. They had potent anti-mycobacterial activity against M. avium and M. intracellulare with minimum inhibitory concentrations (MICs) between 0.024 and 1.56 μg/mL. In addition, a combination of 2 and 3 markedly enhanced the anti-mycobacterial activity against both M. avium and M. intracellulare. Furthermore, a combination 2 and 3 had a therapeutic effect comparable to that of ethambutol in a silkworm infection assay with M. smegmatis.
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Affiliation(s)
- Kanji Hosoda
- Department of Microbial Chemistry, Graduate School of Pharmaceutical Sciences, Kitasato University, Tokyo 108-8641, Japan.
- Medicinal Research Laboratories, School of Pharmacy, Kitasato University, Tokyo 108-8641, Japan.
| | - Nobuhiro Koyama
- Department of Microbial Chemistry, Graduate School of Pharmaceutical Sciences, Kitasato University, Tokyo 108-8641, Japan.
- Medicinal Research Laboratories, School of Pharmacy, Kitasato University, Tokyo 108-8641, Japan.
| | - Akihiko Kanamoto
- OP BIO FACTORY Co., Ltd., 5-8 Suzaki, Uruma-shi, Okinawa 904-2234, Japan.
| | - Hiroshi Tomoda
- Department of Microbial Chemistry, Graduate School of Pharmaceutical Sciences, Kitasato University, Tokyo 108-8641, Japan.
- Medicinal Research Laboratories, School of Pharmacy, Kitasato University, Tokyo 108-8641, Japan.
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22
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Wang B, LaMattina JW, Marshall SL, Booker SJ. Capturing Intermediates in the Reaction Catalyzed by NosN, a Class C Radical S-Adenosylmethionine Methylase Involved in the Biosynthesis of the Nosiheptide Side-Ring System. J Am Chem Soc 2019; 141:5788-5797. [PMID: 30865439 DOI: 10.1021/jacs.8b13157] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Nosiheptide is a ribosomally synthesized and post-translationally modified thiopeptide natural product that possesses antibacterial, anticancer, and immunosuppressive properties. It contains a bicyclic structure composed of a large macrocycle and a unique side-ring system containing a 3,4-dimethylindolic acid bridge connected to the side chains of Glu6 and Cys8 of the core peptide via ester and thioester linkages, respectively. In addition to the structural peptide, encoded by the nosM gene, the biosynthesis of the side-ring structure requires the actions of NosI, -J, -K, -L, and -N. NosN is annotated as a class C radical S-adenosylmethionine (SAM) methylase, but its true function is to transfer a C1 unit from SAM to C4 of 3-methyl-2-indolic acid (MIA) with concomitant formation of a bond between the carboxylate of Glu6 of the core peptide and the nascent C1 unit. However, exactly when NosN performs its function during the biosynthesis of nosiheptide is unknown. Herein, we report the syntheses and use of three peptide mimics as potential substrates designed to address the timing of NosN's function. Our results show that NosN clearly closes the side ring before NosO forms the pyridine ring and most likely before NosD/E catalyzes formation of the dehydrated amino acids, although the possibility of a more random process (i.e., NosN acting after NosD/E) cannot be ruled out. Using a substrate mimic containing a rigid structure, we also identify and characterize two reaction-based adducts containing SAM fused to C4 of MIA. The two SAM adducts are derived from a consensus radical-containing species proposed to be the key intermediate-or a derivative of the key intermediate-in our proposed catalytic mechanism of NosN.
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23
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Akasapu S, Hinds AB, Powell WC, Walczak MA. Total synthesis of micrococcin P1 and thiocillin I enabled by Mo(vi) catalyst. Chem Sci 2019; 10:1971-1975. [PMID: 30881626 PMCID: PMC6383332 DOI: 10.1039/c8sc04885a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 12/03/2018] [Indexed: 12/05/2022] Open
Abstract
Thiopeptides are a class of potent antibiotics with promising therapeutic potential. We developed a novel Mo(vi)-oxide/picolinic acid catalyst for the cyclodehydration of cysteine peptides to form thiazoline heterocycles. With this powerful tool in hand, we completed the total syntheses of two representative thiopeptide antibiotics: micrococcin P1 and thiocillin I. These two concise syntheses (15 steps, longest linear sequence) feature a C-H activation strategy to install the trisubstituted pyridine core and thiazole groups. The synthetic material displays promising antimicrobial properties measured against a series of Gram-positive bacteria.
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Affiliation(s)
- Siddhartha Akasapu
- Department of Chemistry , University of Colorado , Boulder , CO 80309 , USA .
| | - Aaron B Hinds
- Department of Chemistry , University of Colorado , Boulder , CO 80309 , USA .
| | - Wyatt C Powell
- Department of Chemistry , University of Colorado , Boulder , CO 80309 , USA .
| | - Maciej A Walczak
- Department of Chemistry , University of Colorado , Boulder , CO 80309 , USA .
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24
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Piotrowska DG, Głowacka IE, Wróblewski AE, Lubowiecka L. Synthesis of nonracemic hydroxyglutamic acids. Beilstein J Org Chem 2019; 15:236-255. [PMID: 30745997 PMCID: PMC6350885 DOI: 10.3762/bjoc.15.22] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 12/22/2018] [Indexed: 11/24/2022] Open
Abstract
Glutamic acid is involved in several cellular processes though its role as the neurotransmitter is best recognized. For detailed studies of interactions with receptors a number of structural analogues of glutamic acid are required to map their active sides. This review article summarizes syntheses of nonracemic hydroxyglutamic acid analogues equipped with functional groups capable for the formation of additional hydrogen bonds, both as donors and acceptors. The majority of synthetic strategies starts from natural products and relies on application of chirons having the required configuration at the carbon atom bonded to nitrogen (e.g., serine, glutamic and pyroglutamic acids, proline and 4-hydroxyproline). Since various hydroxyglutamic acids were identified as components of complex natural products, syntheses of orthogonally protected derivatives of hydroxyglutamic acids are also covered.
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Affiliation(s)
- Dorota G Piotrowska
- Bioorganic Chemistry Laboratory, Faculty of Pharmacy, Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland
| | - Iwona E Głowacka
- Bioorganic Chemistry Laboratory, Faculty of Pharmacy, Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland
| | - Andrzej E Wróblewski
- Bioorganic Chemistry Laboratory, Faculty of Pharmacy, Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland
| | - Liwia Lubowiecka
- Bioorganic Chemistry Laboratory, Faculty of Pharmacy, Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland
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25
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Kemung HM, Tan LTH, Khan TM, Chan KG, Pusparajah P, Goh BH, Lee LH. Streptomyces as a Prominent Resource of Future Anti-MRSA Drugs. Front Microbiol 2018; 9:2221. [PMID: 30319563 PMCID: PMC6165876 DOI: 10.3389/fmicb.2018.02221] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 08/30/2018] [Indexed: 01/21/2023] Open
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) pose a significant health threat as they tend to cause severe infections in vulnerable populations and are difficult to treat due to a limited range of effective antibiotics and also their ability to form biofilm. These organisms were once limited to hospital acquired infections but are now widely present in the community and even in animals. Furthermore, these organisms are constantly evolving to develop resistance to more antibiotics. This results in a need for new clinically useful antibiotics and one potential source are the Streptomyces which have already been the source of several anti-MRSA drugs including vancomycin. There remain large numbers of Streptomyces potentially undiscovered in underexplored regions such as mangrove, deserts, marine, and freshwater environments as well as endophytes. Organisms from these regions also face significant challenges to survival which often result in the production of novel bioactive compounds, several of which have already shown promise in drug development. We review the various mechanisms of antibiotic resistance in MRSA and all the known compounds isolated from Streptomyces with anti-MRSA activity with a focus on those from underexplored regions. The isolation of the full array of compounds Streptomyces are potentially capable of producing in the laboratory has proven a challenge, we also review techniques that have been used to overcome this obstacle including genetic cluster analysis. Additionally, we review the in vivo work done thus far with promising compounds of Streptomyces origin as well as the animal models that could be used for this work.
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Affiliation(s)
- Hefa Mangzira Kemung
- Novel Bacteria and Drug Discovery Research Group, Biomedicine Research Advancement Centre, School of Pharmacy, Monash University Malaysia, Bandar Sunway, Malaysia.,Biofunctional Molecule Exploratory Research Group, Biomedicine Research Advancement Centre, School of Pharmacy, Monash University Malaysia, Bandar Sunway, Malaysia
| | - Loh Teng-Hern Tan
- Novel Bacteria and Drug Discovery Research Group, Biomedicine Research Advancement Centre, School of Pharmacy, Monash University Malaysia, Bandar Sunway, Malaysia.,Biofunctional Molecule Exploratory Research Group, Biomedicine Research Advancement Centre, School of Pharmacy, Monash University Malaysia, Bandar Sunway, Malaysia.,Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Malaysia
| | - Tahir Mehmood Khan
- Novel Bacteria and Drug Discovery Research Group, Biomedicine Research Advancement Centre, School of Pharmacy, Monash University Malaysia, Bandar Sunway, Malaysia.,Biofunctional Molecule Exploratory Research Group, Biomedicine Research Advancement Centre, School of Pharmacy, Monash University Malaysia, Bandar Sunway, Malaysia.,The Institute of Pharmaceutical Sciences (IPS), University of Veterinary and Animal Sciences (UVAS), Lahore, Pakistan
| | - Kok-Gan Chan
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia.,International Genome Centre, Jiangsu University, Zhenjiang, China
| | - Priyia Pusparajah
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Malaysia
| | - Bey-Hing Goh
- Novel Bacteria and Drug Discovery Research Group, Biomedicine Research Advancement Centre, School of Pharmacy, Monash University Malaysia, Bandar Sunway, Malaysia.,Biofunctional Molecule Exploratory Research Group, Biomedicine Research Advancement Centre, School of Pharmacy, Monash University Malaysia, Bandar Sunway, Malaysia.,Center of Health Outcomes Research and Therapeutic Safety (Cohorts), School of Pharmaceutical Sciences, University of Phayao, Mueang Phayao, Thailand
| | - Learn-Han Lee
- Novel Bacteria and Drug Discovery Research Group, Biomedicine Research Advancement Centre, School of Pharmacy, Monash University Malaysia, Bandar Sunway, Malaysia.,Biofunctional Molecule Exploratory Research Group, Biomedicine Research Advancement Centre, School of Pharmacy, Monash University Malaysia, Bandar Sunway, Malaysia.,Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Malaysia.,Center of Health Outcomes Research and Therapeutic Safety (Cohorts), School of Pharmaceutical Sciences, University of Phayao, Mueang Phayao, Thailand
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26
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Wang B, LaMattina JW, Badding ED, Gadsby LK, Grove TL, Booker SJ. Using Peptide Mimics to Study the Biosynthesis of the Side-Ring System of Nosiheptide. Methods Enzymol 2018; 606:241-268. [PMID: 30097095 PMCID: PMC6501191 DOI: 10.1016/bs.mie.2018.06.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Thiopeptide natural products have gained interest recently for their diverse pharmacological properties, including antibacterial, antifungal, anticancer, and antimalarial activities. Due to their inherent poor solubility and uptake, there is interest in developing new thiopeptides that mimic these unique structures, but which exhibit better pharmacokinetic properties. One strategy is to exploit the biosynthetic pathways using a chemoenzymatic approach to make analogs. However, a complete understanding of thiopeptide biosynthesis is not available, especially for those molecules that contain a large number of modifications to the thiopeptide core. This gap in knowledge and the lack of a facile method for generating a variety of thiopeptide intermediates makes studying particular enzymatic steps difficult. We developed a method to produce thiopeptide mimics based on established synthetic procedures to study the reaction catalyzed by NosN, the class C radical S-adenosylmethionine methylase involved in carbon transfer to C4 of 3-methylindolic acid and completion of the side-ring system in nosiheptide. Herein, we detail strategies for overproducing and isolating NosN, as well as procedures for synthesizing substrate mimics to study the formation of the side-ring system of nosiheptide.
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Affiliation(s)
- Bo Wang
- Department of Chemistry, The Pennsylvania State University, University Park, PA, United States
| | - Joseph W LaMattina
- Department of Chemistry, The Pennsylvania State University, University Park, PA, United States
| | - Edward D Badding
- Department of Chemistry, The Pennsylvania State University, University Park, PA, United States
| | - Lauren K Gadsby
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA, United States
| | - Tyler L Grove
- Department of Chemistry, The Pennsylvania State University, University Park, PA, United States
| | - Squire J Booker
- Department of Chemistry, The Pennsylvania State University, University Park, PA, United States; Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA, United States; The Howard Hughes Medical Institute, The Pennsylvania State University, University Park, PA, United States.
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27
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Guérard-Hélaine C, Heuson E, Ndiaye M, Gourbeyre L, Lemaire M, Hélaine V, Charmantray F, Petit JL, Salanoubat M, de Berardinis V, Gefflaut T. Stereoselective synthesis of γ-hydroxy-α-amino acids through aldolase-transaminase recycling cascades. Chem Commun (Camb) 2018; 53:5465-5468. [PMID: 28466909 DOI: 10.1039/c7cc00742f] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Efficient bi-enzymatic cascades combining aldolases and α-transaminases were designed for the synthesis of γ-hydroxy-α-amino acids. These recycling cascades provide high stereoselectivity, atom economy, and an equilibrium shift of the transamination. l-syn or anti-4-hydroxyglutamic acid and d-anti-4,5-dihydroxynorvaline were thus prepared in 83-95% yield in one step from simple substrates.
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Affiliation(s)
- Christine Guérard-Hélaine
- Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand, F-63000 Clermont-Ferrand, France.
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28
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Saavedra CJ, Hernández D, Boto A. Metal-Free, Site-Selective Peptide Modification by Conversion of “Customizable” Units into β-Substituted Dehydroamino Acids. Chemistry 2017; 24:599-607. [DOI: 10.1002/chem.201703758] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Indexed: 12/18/2022]
Affiliation(s)
- Carlos J. Saavedra
- Instituto de Productos Naturales y Agrobiología, CSIC (Spanish Research Council); Avda. Astrofísico Fco. Sánchez 3 38206 La Laguna Tenerife SPAIN
| | - Dácil Hernández
- Instituto de Productos Naturales y Agrobiología, CSIC (Spanish Research Council); Avda. Astrofísico Fco. Sánchez 3 38206 La Laguna Tenerife SPAIN
| | - Alicia Boto
- Instituto de Productos Naturales y Agrobiología, CSIC (Spanish Research Council); Avda. Astrofísico Fco. Sánchez 3 38206 La Laguna Tenerife SPAIN
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29
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Wang D, Ni H, Wang Z, Liu B, Chen H, Gu Z, Zhao X. Discrimination of Nosiheptide Sources with Plasmonic Filters. ACS APPLIED MATERIALS & INTERFACES 2017; 9:13049-13055. [PMID: 28374999 DOI: 10.1021/acsami.7b01335] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Bacteria identification plays a vital role in the field of clinical diagnosis, food industry, and environmental monitoring, which is in great demand of point of care detection methods. In this paper, in order to discriminate the source of nosiheptide product, a plasmonic filter was fabricated to filtrate, capture and identify Streptomycete spores with Surface enhanced Raman Scattering (SERS). Since the plasmonic filter was derived from self-assembled photonic crystal coated with silver, the plasmonic "hot spots" on the filter surface was distributed evenly in a fare good density and the SERS enhancement factor was 7.49 × 107. With this filter, a stain- and PCR-free detection was realized with only 5 μL sample solution and 5 min in a manner of "filtration and measure". Comparison to traditional Gram stain method and silver-plated nylon filter membrane, the plasmonic filter showed good sensitivity and efficiency in the discrimination of nosiheptide prepared with chemical and biological methods. It is anticipated that this simple SERS detection method with plasmonic filter has promising potentials in food safety, environmental, or clinical applications.
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Affiliation(s)
- Delong Wang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
- Suzhou Key Laboratory of Environment and Biosafety, Suzhou Research Institute of Southeast University , Suzhou 215123, China
| | - Haibin Ni
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
- Suzhou Key Laboratory of Environment and Biosafety, Suzhou Research Institute of Southeast University , Suzhou 215123, China
| | - Zhongqiang Wang
- SUNNY GROUP·SEL BIOCHEM , Paradise Software Park, Hangzhou 310012, China
| | - Bing Liu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
- Suzhou Key Laboratory of Environment and Biosafety, Suzhou Research Institute of Southeast University , Suzhou 215123, China
| | - Hongyuan Chen
- State Key Laboratory of Coordination Chemistry, Department of Chemistry, Nanjing University , Nanjing 210093, China
| | - Zhongze Gu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
- Suzhou Key Laboratory of Environment and Biosafety, Suzhou Research Institute of Southeast University , Suzhou 215123, China
| | - Xiangwei Zhao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
- Suzhou Key Laboratory of Environment and Biosafety, Suzhou Research Institute of Southeast University , Suzhou 215123, China
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30
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Badding ED, Grove TL, Gadsby LK, LaMattina JW, Boal AK, Booker SJ. Rerouting the Pathway for the Biosynthesis of the Side Ring System of Nosiheptide: The Roles of NosI, NosJ, and NosK. J Am Chem Soc 2017; 139:5896-5905. [PMID: 28343381 PMCID: PMC5940322 DOI: 10.1021/jacs.7b01497] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Nosiheptide (NOS) is a highly modified thiopeptide antibiotic that displays formidable in vitro activity against a variety of Gram-positive bacteria. In addition to a central hydroxypyridine ring, NOS contains several other modifications, including multiple thiazole rings, dehydro-amino acids, and a 3,4-dimethylindolic acid (DMIA) moiety. The DMIA moiety is required for NOS efficacy and is synthesized from l-tryptophan in a series of reactions that have not been fully elucidated. Herein, we describe the role of NosJ, the product of an unannotated gene in the biosynthetic operon for NOS, as an acyl carrier protein that delivers 3-methylindolic acid (MIA) to NosK. We also reassign the role of NosI as the enzyme responsible for catalyzing the ATP-dependent activation of MIA and MIA's attachment to the phosphopantetheine moiety of NosJ. Lastly, NosK catalyzes the transfer of the MIA group from NosJ-MIA to a conserved serine residue (Ser102) on NosK. The X-ray crystal structure of NosK, solved to 2.3 Å resolution, reveals that the protein is an α/β-fold hydrolase. Ser102 interacts with Glu210 and His234 to form a catalytic triad located at the bottom of an open cleft that is large enough to accommodate the thiopeptide framework.
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Affiliation(s)
- Edward D Badding
- The Department of Chemistry, §The Department of Biochemistry and Molecular Biology, and ∥The Howard Hughes Medical Institute, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Tyler L Grove
- The Department of Chemistry, §The Department of Biochemistry and Molecular Biology, and ∥The Howard Hughes Medical Institute, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Lauren K Gadsby
- The Department of Chemistry, §The Department of Biochemistry and Molecular Biology, and ∥The Howard Hughes Medical Institute, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Joseph W LaMattina
- The Department of Chemistry, §The Department of Biochemistry and Molecular Biology, and ∥The Howard Hughes Medical Institute, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Amie K Boal
- The Department of Chemistry, §The Department of Biochemistry and Molecular Biology, and ∥The Howard Hughes Medical Institute, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Squire J Booker
- The Department of Chemistry, §The Department of Biochemistry and Molecular Biology, and ∥The Howard Hughes Medical Institute, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
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31
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Hernández D, Boto A, Guzmán D, Alvarez E. Metal-free, direct conversion of α-amino acids into α-keto γ-amino esters for the synthesis of α,γ-peptides. Org Biomol Chem 2017; 15:7736-7742. [DOI: 10.1039/c7ob02033c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
An efficient, metal-free synthesis of unusual α-keto γ-amino esters from α-amino acids is achieved by a radical scission–oxidation–addition of silyloxy acrylates procedure, where no purification of the reaction intermediates is needed. The process allows the synthesis of α,γ-peptides.
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Affiliation(s)
- D. Hernández
- Instituto de Productos Naturales y Agrobiología del CSIC
- 38206-La Laguna
- Spain
| | - A. Boto
- Instituto de Productos Naturales y Agrobiología del CSIC
- 38206-La Laguna
- Spain
| | - D. Guzmán
- Instituto de Productos Naturales y Agrobiología del CSIC
- 38206-La Laguna
- Spain
| | - E. Alvarez
- Instituto de Investigaciones Químicas (CSIC-USe)
- Isla de la Cartuja
- 41092-Sevilla
- Spain
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32
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Heravi M, Rohani S, Zadsirjan V, Zahedi N. Fischer indole synthesis applied to the total synthesis of natural products. RSC Adv 2017. [DOI: 10.1039/c7ra10716a] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this review, we are trying to underscore the application of FIS in one of the crucial step of indole construction in the total synthesis of biologically active natural products.
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Affiliation(s)
- Majid M. Heravi
- Department of Chemistry
- School of Science
- Alzahra University
- Tehran
- Iran
| | - Sahar Rohani
- Department of Chemistry
- School of Science
- Alzahra University
- Tehran
- Iran
| | - Vahideh Zadsirjan
- Department of Chemistry
- School of Science
- Alzahra University
- Tehran
- Iran
| | - Nazli Zahedi
- Department of Chemistry
- School of Science
- Alzahra University
- Tehran
- Iran
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33
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Wojtas KP, Lu JY, Krahn D, Arndt HD. Regioselective Functionalization of 3-Hydroxy-pyridine Carboxylates by Neighboring Group Assistance. Chem Asian J 2016; 11:2859-2862. [DOI: 10.1002/asia.201601111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 08/24/2016] [Indexed: 11/05/2022]
Affiliation(s)
- K. Philip Wojtas
- Friedrich-Schiller-Universität; Institut für Organische Chemie und Makromolekulare Chemie; Humboldtstraße 10 07743 Jena Germany
| | - Jin-Yong Lu
- Friedrich-Schiller-Universität; Institut für Organische Chemie und Makromolekulare Chemie; Humboldtstraße 10 07743 Jena Germany
| | - Daniel Krahn
- Friedrich-Schiller-Universität; Institut für Organische Chemie und Makromolekulare Chemie; Humboldtstraße 10 07743 Jena Germany
| | - Hans-Dieter Arndt
- Friedrich-Schiller-Universität; Institut für Organische Chemie und Makromolekulare Chemie; Humboldtstraße 10 07743 Jena Germany
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34
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Schwenk S, Ronco C, Oberheide A, Arndt HD. Biomimetic Synthesis of Urukthapelstatin A by Aza-Wittig Ring Contraction. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600994] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Sebastian Schwenk
- Friedrich-Schiller-Universität; Institut für Organische Chemie und Makromolekulare Chemie; Humboldtstr. 10 07743 Jena Germany
| | - Cyril Ronco
- Friedrich-Schiller-Universität; Institut für Organische Chemie und Makromolekulare Chemie; Humboldtstr. 10 07743 Jena Germany
| | - Ansgar Oberheide
- Friedrich-Schiller-Universität; Institut für Organische Chemie und Makromolekulare Chemie; Humboldtstr. 10 07743 Jena Germany
| | - Hans-Dieter Arndt
- Friedrich-Schiller-Universität; Institut für Organische Chemie und Makromolekulare Chemie; Humboldtstr. 10 07743 Jena Germany
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35
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Wang S, Zheng X, Pan Q, Chen Y. Mutagenesis of precursor peptide for the generation of nosiheptide analogues. RSC Adv 2016; 6:94643-94650. [DOI: 10.1039/c6ra20302g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/03/2024] Open
Abstract
Thr3 in the core peptide of NosM could be mutated to generate nosiheptide analogues retaining antimicrobial activities.
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Affiliation(s)
- Shuzhen Wang
- State Key Laboratory of Natural Medicines
- Laboratory of Chemical Biology
- China Pharmaceutical University
- Nanjing
- People's Republic of China
| | - Xulu Zheng
- State Key Laboratory of Natural Medicines
- Laboratory of Chemical Biology
- China Pharmaceutical University
- Nanjing
- People's Republic of China
| | - Qi Pan
- State Key Laboratory of Natural Medicines
- Laboratory of Chemical Biology
- China Pharmaceutical University
- Nanjing
- People's Republic of China
| | - Yijun Chen
- State Key Laboratory of Natural Medicines
- Laboratory of Chemical Biology
- China Pharmaceutical University
- Nanjing
- People's Republic of China
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