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Han F, Liu G, Jin C, Wang J, Liu J, Wang L, Chen Y. Total Synthesis and Determination of the Absolute Configuration of Rakicidin C. Org Lett 2021; 23:7069-7073. [PMID: 34459614 DOI: 10.1021/acs.orglett.1c02476] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The absolute configuration of rakicidin C was predicted by comparison of optical rotation data and absolute configuration of APD-cyclic depsipeptides and further determined by total synthesis. The absolute configuration of five chiral centers was determined as 2R, 15R, 16R, 17S, and 19S. Our efficient route involves 19 longest linear steps with an overall yield of 1.49%.
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Affiliation(s)
- Fangzhi Han
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300350, People's Republic of China
| | - Guangju Liu
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300350, People's Republic of China
| | - Chaofan Jin
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300350, People's Republic of China
| | - Jinghan Wang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300350, People's Republic of China
| | - Jianwei Liu
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300350, People's Republic of China
| | - Liang Wang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300350, People's Republic of China.,College of Chemistry, Nankai University, Tianjin, 300071, People's Republic of China
| | - Yue Chen
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300350, People's Republic of China.,College of Chemistry, Nankai University, Tianjin, 300071, People's Republic of China
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Iwasaki A, Suenaga K. Bioorganic Study of New Natural Products Isolated from Marine Cyanobacteria. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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3
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Bukya H, Nayani K, Gangireddy P, Mainkar PS. Benzoisothiazolone (BIT): A Fast, Efficient, and Recyclable Redox Reagent for Solid Phase Peptide Synthesis. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000722] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Hemalatha Bukya
- Department of Organic Synthesis and Process Chemistry CSIR‐Indian Institute of Chemical Technology 500007 Hyderabad India
- National Institute of Pharmaceutical Education and Research (NIPER) 500037 Hyderabad India
| | - Kiranmai Nayani
- Department of Organic Synthesis and Process Chemistry CSIR‐Indian Institute of Chemical Technology 500007 Hyderabad India
| | - Pavankumar Gangireddy
- National Institute of Pharmaceutical Education and Research (NIPER) 500037 Hyderabad India
- NSJ Prayog Life Sciences 500007 Hyderabad India
| | - Prathama S. Mainkar
- Department of Organic Synthesis and Process Chemistry CSIR‐Indian Institute of Chemical Technology 500007 Hyderabad India
- Academy of Scientific and Innovative Research (AcSIR) 201002 Ghaziabad India
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4
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Amatuni A, Shuster A, Adibekian A, Renata H. Concise Chemoenzymatic Total Synthesis and Identification of Cellular Targets of Cepafungin I. Cell Chem Biol 2020; 27:1318-1326.e18. [PMID: 32763140 DOI: 10.1016/j.chembiol.2020.07.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/22/2020] [Accepted: 07/17/2020] [Indexed: 12/17/2022]
Abstract
The natural product cepafungin I was recently reported to be one of the most potent covalent inhibitors of the 20S proteasome core particle through a series of in vitro activity assays. Here, we report a short chemoenzymatic total synthesis of cepafungin I featuring the use of a regioselective enzymatic oxidation to prepare a key hydroxylated amino acid building block in a scalable fashion. The strategy developed herein enabled access to a chemoproteomic probe, which in turn revealed the exceptional selectivity and potency of cepafungin I toward the β2 and β5 subunits of the proteasome. Further structure-activity relationship studies suggest the key role of the hydroxyl group in the macrocycle and the identity of the lipid tail in modulating the potency of this natural product family. This study lays the groundwork for further medicinal chemistry exploration to fully realize the anticancer potential of cepafungin I.
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Affiliation(s)
- Alexander Amatuni
- Department of Chemistry, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Anton Shuster
- Department of Chemistry, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Alexander Adibekian
- Department of Chemistry, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA.
| | - Hans Renata
- Department of Chemistry, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA.
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5
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Design, Synthesis and Biological Evaluation of Jahanyne Analogs as Cell Cycle Arrest Inducers. Mar Drugs 2020; 18:md18030176. [PMID: 32210159 PMCID: PMC7142928 DOI: 10.3390/md18030176] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 03/17/2020] [Accepted: 03/19/2020] [Indexed: 11/17/2022] Open
Abstract
Jahanyne, a lipopeptide with a unique terminal alkynyl and OEP (2-(1-oxo-ethyl)-pyrrolidine) moiety, exhibits anticancer activity. We synthesized jahanyne and analogs modified at the OEP moiety, employing an α-fluoromethyl ketone (FMK) strategy. Preliminary bioassays indicated that compound 1b (FMK-jahanyne) exhibited decreased activities to varying degrees against most of the cancer cells tested, whereas the introduction of a fluorine atom to the α-position of a hydroxyl group (2b) enhanced activities against all lung cancer cells. Moreover, jahanyne and 2b could induce G0/G1 cell cycle arrest in a concentration-dependent manner.
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Ozaki K, Iwasaki A, Sezawa D, Fujimura H, Nozaki T, Saito-Nakano Y, Suenaga K, Teruya T. Isolation and Total Synthesis of Mabuniamide, a Lipopeptide from an Okeania sp. Marine Cyanobacterium. JOURNAL OF NATURAL PRODUCTS 2019; 82:2907-2915. [PMID: 31549837 DOI: 10.1021/acs.jnatprod.9b00749] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The bioassay-guided fractionation of an Okeania sp. marine cyanobacterium collected in Okinawa led to the isolation of the lipopeptide mabuniamide (1). The gross structure of 1 was determined by spectroscopic analyses, and its absolute configuration was determined using Marfey's analysis of the acid hydrolysate of 1. The absolute configuration of 1 was confirmed by total synthesis. Mabuniamide (1) stimulated glucose uptake in cultured rat L6 myotubes. In addition, mabuniamide (1) and its stereoisomer (2) exhibited moderate antimalarial activity.
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Affiliation(s)
- Kaori Ozaki
- Graduate School of Engineering and Science , University of the Ryukyus , 1 Senbaru , Nishihara , Okinawa 903-0213 , Japan
| | - Arihiro Iwasaki
- Department of Chemistry, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi , Kohoku-ku, Yokohama , Kanagawa 223-8522 , Japan
| | - Dai Sezawa
- Department of Chemistry, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi , Kohoku-ku, Yokohama , Kanagawa 223-8522 , Japan
| | - Haruka Fujimura
- Department of Chemistry, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi , Kohoku-ku, Yokohama , Kanagawa 223-8522 , Japan
| | - Tomoyoshi Nozaki
- Department of Biomedical Chemistry, Graduate School of Medicine , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-0033 , Japan
| | - Yumiko Saito-Nakano
- Department of Parasitology , National Institute of Infectious Diseases , 1-23-1 Toyama , Shinjuku-ku, Tokyo 162-8640 , Japan
| | - Kiyotake Suenaga
- Department of Chemistry, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi , Kohoku-ku, Yokohama , Kanagawa 223-8522 , Japan
| | - Toshiaki Teruya
- Graduate School of Engineering and Science , University of the Ryukyus , 1 Senbaru , Nishihara , Okinawa 903-0213 , Japan
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Gao Y, Cao Z, Zhang Q, Guo R, Ding F, You Q, Bi J, Zhang Y. Total Synthesis of the Proposed Structure of Penasulfate A: l-Arabinose as a Source of Chirality. JOURNAL OF NATURAL PRODUCTS 2019; 82:1908-1916. [PMID: 31241928 DOI: 10.1021/acs.jnatprod.9b00245] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The total synthesis of putative penasulfate A was effectively achieved by a convergent strategy with a longest linear sequence of 14 steps and overall yield of 8.6%. The highlights of our strategy involved an E-selective olefin cross-metathesis, Suzuki cross-coupling, and a copper(I)-catalyzed coupling reaction.
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Affiliation(s)
- Yangguang Gao
- Institute for Interdisciplinary Research , Jianghan University , Wuhan 430056 , People's Republic of China
| | - Zhou Cao
- Institute for Interdisciplinary Research , Jianghan University , Wuhan 430056 , People's Republic of China
| | - Qiang Zhang
- Institute for Interdisciplinary Research , Jianghan University , Wuhan 430056 , People's Republic of China
| | - Rui Guo
- Institute of Environment and Health , Jianghan University , Wuhan 430056 , People's Republic of China
| | - Fei Ding
- Institute for Interdisciplinary Research , Jianghan University , Wuhan 430056 , People's Republic of China
| | - Qingliang You
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education , Jianghan University , Wuhan 430056 , People's Republic of China
| | - Jingjing Bi
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang 453007 , People's Republic of China
| | - Yongmin Zhang
- Institut Parisien de Chimie Moléculaire, UMR 8232 CNRS , Sorbonne Université , Paris 75005 , France
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Ye B, Jiang P, Zhang T, Sun Y, Hao X, Cui Y, Wang L, Chen Y. Total Synthesis of the Highly N-Methylated Peptides Carmabin A and Dragomabin. Mar Drugs 2018; 16:md16090338. [PMID: 30227592 PMCID: PMC6164609 DOI: 10.3390/md16090338] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 09/07/2018] [Accepted: 09/12/2018] [Indexed: 02/06/2023] Open
Abstract
The first total synthesis of carmabin A and dragomabin was achieved at 52.3 mg and 43.8 mg scale, respectively. The synthesis led to determination of the configuration of carmabin A and reassignment of the configuration of dragomabin at the stereogenic centre on the alkyne-bearing fragment.
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Affiliation(s)
- Baijun Ye
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China.
| | - Peng Jiang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China.
| | - Tingrong Zhang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China.
| | - Yuanjun Sun
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China.
| | - Xin Hao
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China.
| | - Yingjun Cui
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China.
| | - Liang Wang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China.
| | - Yue Chen
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China.
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300350, China.
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