1
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Abstract
A convenient method for the synthesis of indoles has been developed by the sequential orchestration of the cross-coupling reaction of o-haloaniline and PIFA oxidation of the resulting 2-alkenylanilines. A highlight of this two-step indole synthesis is a modular strategy which is applicable to both acyclic and cyclic starting materials. Particularly noteworthy is the regiochemistry that is complementary to the Fischer indole synthesis and related variants. Direct preparation of N-H indoles with no N-protecting group is also advantageous.
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Affiliation(s)
- Assia Chebieb
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
- Laboratory of Catalysis and Organic Synthesis LCSCO, University of Tlemcen, Tlemcen 13000, Algeria
| | - Young Gyu Kim
- Department of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Jin Kun Cha
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
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2
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Han J, Lyutenko NV, Sorochinsky AE, Okawara A, Konno H, White S, Soloshonok VA. Tailor-Made Amino Acids in Pharmaceutical Industry: Synthetic Approaches to Aza-Tryptophan Derivatives. Chemistry 2021; 27:17510-17528. [PMID: 34913215 DOI: 10.1002/chem.202102485] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 08/24/2021] [Indexed: 12/22/2022]
Abstract
Over the recent years there has been a noticeable upsurge of interest in aza-analogs of tryptophan which are isosteric to the latter and found numerous applications in medicinal, bioorganic chemistry, and peptide research. In the present review article, five aza-tryptophan derivatives are profiled, including aza-substitution in the positions 2, on the five-membered ring, as well as in positions 4, 5, 6, and 7 on the six-membered ring. A detailed and comprehensive literature overview of the synthetic methods for the preparation of these aza-tryptophans is presented and general facets of the biological properties and most promising applications are discussed.
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Affiliation(s)
- Jianlin Han
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and Materials College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, P. R. China
| | - Nataliya V Lyutenko
- Department of Fine Organic Synthesis V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, The National Academy of Sciences of Ukraine, 1 Murmanska str., Kyiv, 02094, Ukraine
| | - Alexander E Sorochinsky
- Department of Fine Organic Synthesis V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, The National Academy of Sciences of Ukraine, 1 Murmanska str., Kyiv, 02094, Ukraine
| | - Ayaka Okawara
- Graduate School of Science and Engineering, Yamagata University, 4-3-16, Jonan, Yonezawa, Yamagata, 992-8510, Japan
| | - Hiroyuki Konno
- Graduate School of Science and Engineering, Yamagata University, 4-3-16, Jonan, Yonezawa, Yamagata, 992-8510, Japan
| | - Sarah White
- Oakwood Chemical, Inc., 730 Columbia Hwy. N, Estill, SC, 29918, USA
| | - Vadim A Soloshonok
- Department of Organic Chemistry I Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018, San Sebastián, Spain.,IKERBASQUE, Basque Foundation for Science, María Díaz de Haro 3, Plaza Bizkaia, 48013, Bilbao, Spain
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3
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Cho S, McLaren EJ, Wang Q. Three‐Component Difunctionalization of Cyclohexenyl Triflates: Direct Access to Versatile Cyclohexenes via Cyclohexynes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109482] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Seoyoung Cho
- Department of Chemistry Duke University Durham NC 27708 USA
| | - E. J. McLaren
- Department of Chemistry Duke University Durham NC 27708 USA
| | - Qiu Wang
- Department of Chemistry Duke University Durham NC 27708 USA
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4
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Cho S, McLaren EJ, Wang Q. Three-Component Difunctionalization of Cyclohexenyl Triflates: Direct Access to Versatile Cyclohexenes via Cyclohexynes. Angew Chem Int Ed Engl 2021; 60:26332-26336. [PMID: 34644004 DOI: 10.1002/anie.202109482] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/27/2021] [Indexed: 11/06/2022]
Abstract
Difunctionalization of strained cyclic alkynes presents a powerful strategy to build richly functionalized cyclic alkenes in an expedient fashion. Herein we disclose an efficient and flexible approach to achieve carbohalogenation, dicarbofunctionalization, aminohalogenation and aminocarbonation of readily available cyclohexenyl triflates. We have demonstrated the novel use of zincate base/nucleophile system for effective formation of key cyclohexyne intermediates and selective addition of various carbon and nitrogen nucleophiles. Importantly, leveraging the resulting organozincates enables the incorporation of a broad range of electrophilic partners to deliver structurally diverse cyclohexene motifs. The importance and utility of this method is also exemplified by the modularity of this approach and the ease in which even highly complex polycyclic scaffolds can be accessed in one step.
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Affiliation(s)
- Seoyoung Cho
- Department of Chemistry, Duke University, Durham, NC, 27708, USA
| | - E J McLaren
- Department of Chemistry, Duke University, Durham, NC, 27708, USA
| | - Qiu Wang
- Department of Chemistry, Duke University, Durham, NC, 27708, USA
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5
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Synthesis of Indoles via Intermolecular and Intramolecular Cyclization by Using Palladium-Based Catalysts. Catalysts 2021. [DOI: 10.3390/catal11091018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
As part of natural products or biologically active compounds, the synthesis of nitrogen-containing heterocycles is becoming incredibly valuable. Palladium is a transition metal that is widely utilized as a catalyst to facilitate carbon-carbon and carbon-heteroatom coupling; it is used in the synthesis of various heterocycles. This review includes the twelve years of successful indole synthesis using various palladium catalysts to establish carbon-carbon or carbon-nitrogen coupling, as well as the conditions that have been optimized.
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6
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Dias do Espírito Santo R, Capitão RM, Santos Barbosa P, Simão dos Santos EF, Roque Duarte Correia C. The Chemistry and Biological Applications of 3
H‐
Pyrrolo[2,3‐
c
]quinolines and Marinoquinolines. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Rafael Dias do Espírito Santo
- Department of Organic Chemistry Chemistry Institute University of Campinas – UNICAMP Campinas São Paulo CEP 13083–970 Brazil
| | - Rebeca Monique Capitão
- Department of Organic Chemistry Chemistry Institute University of Campinas – UNICAMP Campinas São Paulo CEP 13083–970 Brazil
| | - Patrícia Santos Barbosa
- Department of Organic Chemistry Chemistry Institute University of Campinas – UNICAMP Campinas São Paulo CEP 13083–970 Brazil
| | - Eric Francisco Simão dos Santos
- Department of Organic Chemistry Chemistry Institute University of Campinas – UNICAMP Campinas São Paulo CEP 13083–970 Brazil
| | - Carlos Roque Duarte Correia
- Department of Organic Chemistry Chemistry Institute University of Campinas – UNICAMP Campinas São Paulo CEP 13083–970 Brazil
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7
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Liang RX, Zhong C, Liu ZH, Yang M, Tang HW, Chen JF, Yang YF, Jia YX. Enantioselective Arylation of Tetrasubstituted Enamines: Access to Enantioenriched Indolenine and 1H-Indole Derivatives. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ren-Xiao Liang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Chao Zhong
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Zhi-Hong Liu
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Miao Yang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Heng-Wei Tang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Jian-Fei Chen
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Yun-Fang Yang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
| | - Yi-Xia Jia
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18#, Hangzhou 310014, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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8
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Krahn D, Heilmann G, Vogel FCE, Papadopoulos C, Zweerink S, Kaschani F, Meyer H, Roesch A, Kaiser M. Zelkovamycin is an OXPHOS Inhibitory Member of the Argyrin Natural Product Family. Chemistry 2020; 26:8524-8531. [PMID: 32250484 PMCID: PMC7383741 DOI: 10.1002/chem.202001577] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Indexed: 12/16/2022]
Abstract
Natural products (NPs) are an important inspirational source for developing drugs and chemical probes. In 1999, the group of Ōmura reported the constitutional elucidation of zelkovamycin. Although largely unrecognized so far, this NP displays structural similarities as well as differences to the argyrin NP family, a class of peptidic NPs with promising anticancer activities and diverse mode‐of‐action at the molecular level. By a combination of structure elucidation experiments, the first total synthesis of zelkovamycin and bioassays, the zelkovamycin configuration was determined and its previously proposed molecular structure was revised. The full structure assignment proves zelkovamycin as an additional member of the argyrins with however unique OXPHOS inhibitory properties. Zelkovamycin may therefore not only serve as a new starting point for chemical inhibitors of the OXPHOS system, but also guide customized argyrin NP isolation and biosynthesis studies.
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Affiliation(s)
- Daniel Krahn
- Chemische Biologie, Universität Duisburg-Essen, ZMB, Fakultät für Biologie, Universitätsstr. 2, 45117, Essen, Germany
| | - Geronimo Heilmann
- Chemische Biologie, Universität Duisburg-Essen, ZMB, Fakultät für Biologie, Universitätsstr. 2, 45117, Essen, Germany
| | - Felix C E Vogel
- Department of Dermatology, University hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK).,Current address: Division of Tumor Metabolism and Microenvironment, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany
| | - Chrisovalantis Papadopoulos
- Molekularbiologie I, Universität Duisburg-Essen, ZMB, Fakultät für Biologie, Universitätsstr. 2, 45117, Essen, Germany
| | - Susanne Zweerink
- Chemische Biologie, Universität Duisburg-Essen, ZMB, Fakultät für Biologie, Universitätsstr. 2, 45117, Essen, Germany.,Current address: University of Cologne, Faculty of Medicine and University Hospital of Cologne, Department of Gastroenterology and Hepatology, Kerpener Str. 62, 50937, Cologne, Germany
| | - Farnusch Kaschani
- Chemische Biologie, Universität Duisburg-Essen, ZMB, Fakultät für Biologie, Universitätsstr. 2, 45117, Essen, Germany
| | - Hemmo Meyer
- Molekularbiologie I, Universität Duisburg-Essen, ZMB, Fakultät für Biologie, Universitätsstr. 2, 45117, Essen, Germany
| | - Alexander Roesch
- Department of Dermatology, University hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK)
| | - Markus Kaiser
- Chemische Biologie, Universität Duisburg-Essen, ZMB, Fakultät für Biologie, Universitätsstr. 2, 45117, Essen, Germany
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9
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Kaur N, Verma Y, Grewal P, Ahlawat N, Bhardwaj P, Jangid NK. Palladium acetate assisted synthesis of five-membered N-polyheterocycles. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1723640] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Jaipur, India
| | - Yamini Verma
- Department of Chemistry, Banasthali Vidyapith, Jaipur, India
| | - Pooja Grewal
- Department of Chemistry, Banasthali Vidyapith, Jaipur, India
| | - Neha Ahlawat
- Department of Chemistry, Banasthali Vidyapith, Jaipur, India
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10
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Cai N, Mi F, Wu Y, Song H, Liu XY, Qin Y. Practical and efficient preparation of the chiral 4-bromotryptophan derivative by Rh-catalyzed hydrogenation. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151498] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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11
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Benitez-Medina GE, Ortiz-Soto S, Cabrera A, Amézquita-Valencia M. Regioselective Synthesis of 2-Arylindoles via Palladium-Catalyzed Cyclization of Phenylglyoxal and 2-Anilinoacetophenones with Anilines. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900394] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- G. Eliad Benitez-Medina
- Universidad Nacional Autónoma de México; Instituto de Química, Ciudad Universitaria; Circuito Exterior Ciudad de México 04510 México
| | - Sofía Ortiz-Soto
- Universidad Nacional Autónoma de México; Instituto de Química, Ciudad Universitaria; Circuito Exterior Ciudad de México 04510 México
| | - Armando Cabrera
- Universidad Nacional Autónoma de México; Instituto de Química, Ciudad Universitaria; Circuito Exterior Ciudad de México 04510 México
| | - Manuel Amézquita-Valencia
- Universidad Nacional Autónoma de México; Instituto de Química, Ciudad Universitaria; Circuito Exterior Ciudad de México 04510 México
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12
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Supantanapong N, Chuangsoongnern P, Tummatorn J, Thongsornkleeb C, Ruchirawat S. One-pot sequential synthesis of 3-carbonyl-4-arylbenzo[f]indole and 3-carbonyl-4-arylnaphthofuran fluorophores. Org Chem Front 2019. [DOI: 10.1039/c8qo01182f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A robust synthetic method for the construction of valuable fluorophores, 3-carbonyl-4-arylbenzo[f]indoles and 3-carbonyl-4-arylnaphthofurans, has been developed. The strategy involved a one-pot domino process to achieve the products in moderate to excellent yields.
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Affiliation(s)
- N. Supantanapong
- Program on Chemical Biology
- Chulabhorn Graduate Institute
- Center of Excellence on Environmental Health and Toxicology (EHT)
- Ministry of Education
- Laksi
| | - P. Chuangsoongnern
- Laboratory of Medicinal Chemistry
- Chulabhorn Research Institute
- Laksi
- Thailand
| | - J. Tummatorn
- Program on Chemical Biology
- Chulabhorn Graduate Institute
- Center of Excellence on Environmental Health and Toxicology (EHT)
- Ministry of Education
- Laksi
| | - C. Thongsornkleeb
- Program on Chemical Biology
- Chulabhorn Graduate Institute
- Center of Excellence on Environmental Health and Toxicology (EHT)
- Ministry of Education
- Laksi
| | - S. Ruchirawat
- Program on Chemical Biology
- Chulabhorn Graduate Institute
- Center of Excellence on Environmental Health and Toxicology (EHT)
- Ministry of Education
- Laksi
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13
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Mitra P, Eckenrode JM, Mandal A, Jha AK, Salem SM, Leggas M, Rohr J. Development of Mithramycin Analogues with Increased Selectivity toward ETS Transcription Factor Expressing Cancers. J Med Chem 2018; 61:8001-8016. [PMID: 30114371 DOI: 10.1021/acs.jmedchem.8b01107] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Mithramycin A (1) was identified as the top potential inhibitor of the aberrant ETS transcription factor EWS-FLI1, which causes Ewing sarcoma. Unfortunately, 1 has a narrow therapeutic window, compelling us to seek less toxic and more selective analogues. Here, we used MTMSA (2) to generate analogues via peptide coupling and fragment-based drug development strategies. Cytotoxicity assays in ETS and non-ETS dependent cell lines identified two dipeptide analogues, 60 and 61, with 19.1- and 15.6-fold selectivity, respectively, compared to 1.5-fold for 1. Importantly, the cytotoxicity of 60 and 61 is <100 nM in ETS cells. Molecular assays demonstrated the inhibitory capacity of these analogues against EWS-FLI1 mediated transcription in Ewing sarcoma. Structural analysis shows that positioning the tryptophan residue in a distal position improves selectivity, presumably via interaction with the ETS transcription factor. Thus, these analogues may present new ways to target transcription factors for clinical use.
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Affiliation(s)
- Prithiba Mitra
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Kentucky , Lee T. Todd, Jr. Building, 789 South Limestone Street , Lexington , Kentucky 40536-0596 , United States
| | - Joseph M Eckenrode
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Kentucky , Lee T. Todd, Jr. Building, 789 South Limestone Street , Lexington , Kentucky 40536-0596 , United States
| | - Abhisek Mandal
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Kentucky , Lee T. Todd, Jr. Building, 789 South Limestone Street , Lexington , Kentucky 40536-0596 , United States
| | - Amit K Jha
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Kentucky , Lee T. Todd, Jr. Building, 789 South Limestone Street , Lexington , Kentucky 40536-0596 , United States
| | - Shaimaa M Salem
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Kentucky , Lee T. Todd, Jr. Building, 789 South Limestone Street , Lexington , Kentucky 40536-0596 , United States
| | - Markos Leggas
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Kentucky , Lee T. Todd, Jr. Building, 789 South Limestone Street , Lexington , Kentucky 40536-0596 , United States
| | - Jürgen Rohr
- Department of Pharmaceutical Sciences, College of Pharmacy , University of Kentucky , Lee T. Todd, Jr. Building, 789 South Limestone Street , Lexington , Kentucky 40536-0596 , United States
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14
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Abbott JR, Hodges TR, Daniels RN, Patel PA, Kennedy JP, Howes JE, Akan DT, Burns MC, Sai J, Sobolik T, Beesetty Y, Lee T, Rossanese OW, Phan J, Waterson AG, Fesik SW. Discovery of Aminopiperidine Indoles That Activate the Guanine Nucleotide Exchange Factor SOS1 and Modulate RAS Signaling. J Med Chem 2018; 61:6002-6017. [PMID: 29856609 DOI: 10.1021/acs.jmedchem.8b00360] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Deregulated RAS activity, often the result of mutation, is implicated in approximately 30% of all human cancers. Despite this statistic, no clinically successful treatment for RAS-driven tumors has yet been developed. One approach for modulating RAS activity is to target and affect the activity of proteins that interact with RAS, such as the guanine nucleotide exchange factor (GEF) son of sevenless homologue 1 (SOS1). Here, we report on structure-activity relationships (SAR) in an indole series of compounds. Using structure-based design, we systematically explored substitution patterns on the indole nucleus, the pendant amino acid moiety, and the linker unit that connects these two fragments. Best-in-class compounds activate the nucleotide exchange process at submicromolar concentrations in vitro, increase levels of active RAS-GTP in HeLa cells, and elicit signaling changes in the mitogen-activated protein kinase-extracellular regulated kinase (MAPK-ERK) pathway, resulting in a decrease in pERK1/2T202/Y204 protein levels at higher compound concentrations.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Alex G Waterson
- Department of Chemistry , Vanderbilt University , Nashville , Tennessee 37232-0146 , United States
| | - Stephen W Fesik
- Department of Chemistry , Vanderbilt University , Nashville , Tennessee 37232-0146 , United States
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15
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Affiliation(s)
- So Won Youn
- Center for New Directions in Organic Synthesis, Department of Chemistry and Institute for Natural Sciences; Hanyang University; Seoul 04763 Korea
| | - Tae Yun Ko
- Center for New Directions in Organic Synthesis, Department of Chemistry and Institute for Natural Sciences; Hanyang University; Seoul 04763 Korea
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16
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Chalyavi F, Gilmartin PH, Schmitz AJ, Fennie MW, Tucker MJ. Synthesis of 5-Cyano-Tryptophan as a Two-Dimensional Infrared Spectroscopic Reporter of Structure. Angew Chem Int Ed Engl 2018; 57:7528-7532. [PMID: 29710418 PMCID: PMC6002807 DOI: 10.1002/anie.201803849] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Indexed: 12/20/2022]
Abstract
A concise synthesis of protected 5-cyano-l-tryptophan (Trp5CN ) has been developed for 2D IR spectroscopic investigations within either peptides or proteins. To assess the potential of differently substituted cyano-tryptophans, several model cyano-indole systems were characterized using IR spectroscopy. Upon assessment of their spectroscopic properties, Trp5CN was integrated into a model peptide sequence, Trp5CN -Gly-Phe4CN , to elucidate its structure. This peptide demonstrates the capability of this probe to capture structural information by 2D IR spectroscopy. The 2D IR spectrum of the peptide in water was simulated to reveal a unique spectral signature resulting from the presence of dipolar coupling. The coupling strength between cyano labels was determined to be 1.4 cm-1 by matching the slopes along the max contour for the simulated and experimental spectrum. Using transition dipole coupling, a distance between the two probes of 13 Å was calculated.
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Affiliation(s)
- Farzaneh Chalyavi
- Department of Chemistry, University of Nevada, Reno, 1664 N. Virginia Street, Reno, NV, 89557, USA
| | - Philip H Gilmartin
- Department of Chemistry, University of Scranton, 204 Monroe Ave., Scranton, PA, 18510, USA
| | - Andrew J Schmitz
- Department of Chemistry, University of Nevada, Reno, 1664 N. Virginia Street, Reno, NV, 89557, USA
| | - Michael W Fennie
- Department of Chemistry, University of Scranton, 204 Monroe Ave., Scranton, PA, 18510, USA
| | - Matthew J Tucker
- Department of Chemistry, University of Nevada, Reno, 1664 N. Virginia Street, Reno, NV, 89557, USA
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17
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Synthesis of 5-Cyano-Tryptophan as a Two-Dimensional Infrared Spectroscopic Reporter of Structure. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Hur J, Jang J, Sim J, Son WS, Ahn HC, Kim TS, Shin YH, Lim C, Lee S, An H, Kim SH, Oh DC, Jo EK, Jang J, Lee J, Suh YG. Conformation-Enabled Total Syntheses of Ohmyungsamycins A and B and Structural Revision of Ohmyungsamycin B. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711286] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Joonseong Hur
- College of Pharmacy; Seoul National University; 1 Gwanak-ro Gwanak-gu Seoul 08826 Republic of Korea
| | - Jaebong Jang
- College of Pharmacy; Seoul National University; 1 Gwanak-ro Gwanak-gu Seoul 08826 Republic of Korea
| | - Jaehoon Sim
- College of Pharmacy; Seoul National University; 1 Gwanak-ro Gwanak-gu Seoul 08826 Republic of Korea
- College of Pharmacy; CHA University; 120 Haeryong-ro Pocheon Gyeonggi-do 11160 Republic of Korea
| | - Woo Sung Son
- College of Pharmacy; CHA University; 120 Haeryong-ro Pocheon Gyeonggi-do 11160 Republic of Korea
| | - Hee-Chul Ahn
- Department of Pharmacy; Dongguk University; Dongguk-ro 32 Ilsandong-gu, Goyang Geonggi-do 10326 Republic of Korea
| | - Tae Sung Kim
- Department of Microbiology; Chungnam National University School of Medicine; Munhwa-ro 266 Jungku Daejeon 35015 Republic of Korea
| | - Yern-Hyerk Shin
- Natural Products Research Institute; College of Pharmacy; Seoul National University; 1 Gwanak-ro Gwanak-gu Seoul 08826 Republic of Korea
| | - Changjin Lim
- College of Pharmacy; Seoul National University; 1 Gwanak-ro Gwanak-gu Seoul 08826 Republic of Korea
- College of Pharmacy; CHA University; 120 Haeryong-ro Pocheon Gyeonggi-do 11160 Republic of Korea
| | - Seungbeom Lee
- College of Pharmacy; Seoul National University; 1 Gwanak-ro Gwanak-gu Seoul 08826 Republic of Korea
| | - Hongchan An
- College of Pharmacy; Seoul National University; 1 Gwanak-ro Gwanak-gu Seoul 08826 Republic of Korea
| | - Seok-Ho Kim
- College of Pharmacy; CHA University; 120 Haeryong-ro Pocheon Gyeonggi-do 11160 Republic of Korea
| | - Dong-Chan Oh
- Natural Products Research Institute; College of Pharmacy; Seoul National University; 1 Gwanak-ro Gwanak-gu Seoul 08826 Republic of Korea
| | - Eun-Kyeong Jo
- Department of Microbiology; Chungnam National University School of Medicine; Munhwa-ro 266 Jungku Daejeon 35015 Republic of Korea
| | - Jichan Jang
- Division of Applied Life Science; Research Institute of Life Science; Gyeongsang National University; Jinju 52828 Republic of Korea
| | - Jeeyeon Lee
- College of Pharmacy; Seoul National University; 1 Gwanak-ro Gwanak-gu Seoul 08826 Republic of Korea
| | - Young-Ger Suh
- College of Pharmacy; Seoul National University; 1 Gwanak-ro Gwanak-gu Seoul 08826 Republic of Korea
- College of Pharmacy; CHA University; 120 Haeryong-ro Pocheon Gyeonggi-do 11160 Republic of Korea
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19
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Hur J, Jang J, Sim J, Son WS, Ahn HC, Kim TS, Shin YH, Lim C, Lee S, An H, Kim SH, Oh DC, Jo EK, Jang J, Lee J, Suh YG. Conformation-Enabled Total Syntheses of Ohmyungsamycins A and B and Structural Revision of Ohmyungsamycin B. Angew Chem Int Ed Engl 2018; 57:3069-3073. [PMID: 29380472 DOI: 10.1002/anie.201711286] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 12/28/2017] [Indexed: 01/06/2023]
Abstract
The first total syntheses of the bioactive cyclodepsipeptides ohmyungsamycin A and B are described. Key features of our synthesis include the concise preparation of a linear cyclization precursor that consists of N-methyl amides and non-proteinogenic amino acids, and its macrolactamization from a bent conformation. The proposed structure of ohmyungsamycin B was revised based on its synthesis. The cyclic core of the ohmyungsamycins was shown to be responsible for the excellent antituberculosis activity, and ohmyungsamycin variants with truncated chains were evaluated for their biological activity.
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Affiliation(s)
- Joonseong Hur
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jaebong Jang
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jaehoon Sim
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.,College of Pharmacy, CHA University, 120 Haeryong-ro, Pocheon, Gyeonggi-do, 11160, Republic of Korea
| | - Woo Sung Son
- College of Pharmacy, CHA University, 120 Haeryong-ro, Pocheon, Gyeonggi-do, 11160, Republic of Korea
| | - Hee-Chul Ahn
- Department of Pharmacy, Dongguk University, Dongguk-ro 32, Ilsandong-gu, Goyang, Geonggi-do, 10326, Republic of Korea
| | - Tae Sung Kim
- Department of Microbiology, Chungnam National University School of Medicine, Munhwa-ro 266, Jungku, Daejeon, 35015, Republic of Korea
| | - Yern-Hyerk Shin
- Natural Products Research Institute, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Changjin Lim
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.,College of Pharmacy, CHA University, 120 Haeryong-ro, Pocheon, Gyeonggi-do, 11160, Republic of Korea
| | - Seungbeom Lee
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Hongchan An
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Seok-Ho Kim
- College of Pharmacy, CHA University, 120 Haeryong-ro, Pocheon, Gyeonggi-do, 11160, Republic of Korea
| | - Dong-Chan Oh
- Natural Products Research Institute, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Eun-Kyeong Jo
- Department of Microbiology, Chungnam National University School of Medicine, Munhwa-ro 266, Jungku, Daejeon, 35015, Republic of Korea
| | - Jichan Jang
- Division of Applied Life Science, Research Institute of Life Science, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Jeeyeon Lee
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Young-Ger Suh
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.,College of Pharmacy, CHA University, 120 Haeryong-ro, Pocheon, Gyeonggi-do, 11160, Republic of Korea
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20
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Panyam PKR, Sreedharan R, Gandhi T. Synthesis of topologically constrained naphthalimide appended palladium(ii)–N-heterocyclic carbene complexes – insights into additive controlled product selectivity. Org Biomol Chem 2018; 16:4357-4364. [DOI: 10.1039/c8ob00616d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pd(ii)–NHC catalyzed regioselective heteroannulation of o-haloanilines and arylethynyl-trimethylsilane to yield indoles and additive controlled switchable product selectivity has been demonstrated.
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Affiliation(s)
| | - Ramdas Sreedharan
- Department of Chemistry
- School of Advanced Sciences
- VIT University
- Vellore
- India
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21
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Xu Z, Wang Q, Zhu J. Metamorphosis of cycloalkenes for the divergent total synthesis of polycyclic indole alkaloids. Chem Soc Rev 2018; 47:7882-7898. [DOI: 10.1039/c8cs00454d] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review summarizes the divergent synthesis of monoterpene indole alkaloids using cycloalkene as the turning point of structural diversity.
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Affiliation(s)
- Zhengren Xu
- Laboratory of Synthesis and Natural Products
- Institute of Chemical Sciences and Engineering
- École Polytechnique Fédérale de Lausanne
- EPFL-SB-ISIC-LSPN
- BCH5304
| | - Qian Wang
- Laboratory of Synthesis and Natural Products
- Institute of Chemical Sciences and Engineering
- École Polytechnique Fédérale de Lausanne
- EPFL-SB-ISIC-LSPN
- BCH5304
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products
- Institute of Chemical Sciences and Engineering
- École Polytechnique Fédérale de Lausanne
- EPFL-SB-ISIC-LSPN
- BCH5304
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22
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Di Gregorio G, Mari M, Bartoccini F, Piersanti G. Iron-Catalyzed Direct C3-Benzylation of Indoles with Benzyl Alcohols through Borrowing Hydrogen. J Org Chem 2017; 82:8769-8775. [DOI: 10.1021/acs.joc.7b01603] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Giovanni Di Gregorio
- Department of Biomolecular
Sciences, University of Urbino “Carlo Bo”, P.zza Rinascimento
6, 61029 Urbino, Pesaro and Urbino (PU), Italy
| | - Michele Mari
- Department of Biomolecular
Sciences, University of Urbino “Carlo Bo”, P.zza Rinascimento
6, 61029 Urbino, Pesaro and Urbino (PU), Italy
| | - Francesca Bartoccini
- Department of Biomolecular
Sciences, University of Urbino “Carlo Bo”, P.zza Rinascimento
6, 61029 Urbino, Pesaro and Urbino (PU), Italy
| | - Giovanni Piersanti
- Department of Biomolecular
Sciences, University of Urbino “Carlo Bo”, P.zza Rinascimento
6, 61029 Urbino, Pesaro and Urbino (PU), Italy
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23
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Borah M, Borthakur U, Saikia AK. Diastereoselective Synthesis of Substituted Morpholines from N-Tethered Alkenols: Total Synthesis of (±)-Chelonin A. J Org Chem 2017; 82:1330-1339. [DOI: 10.1021/acs.joc.6b02260] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Madhurjya Borah
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Upasana Borthakur
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Anil K. Saikia
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
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24
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Holzapfel C, Dasilva E, Den Drijver L, Bredenkamp T. Hydroformylation of 2-Alkynylanilines: Toward an Alternative Methodology for the Synthesis of 3-Substituted Indoles. ChemCatChem 2016. [DOI: 10.1002/cctc.201600659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Cedric Holzapfel
- Research Centre for Synthesis and Catalysis; Department of Chemistry; University of Johannesburg; PO Box 524 Auckland Park 2006 South Africa
| | - Etelinda Dasilva
- Research Centre for Synthesis and Catalysis; Department of Chemistry; University of Johannesburg; PO Box 524 Auckland Park 2006 South Africa
| | - Laetitia Den Drijver
- Research Centre for Synthesis and Catalysis; Department of Chemistry; University of Johannesburg; PO Box 524 Auckland Park 2006 South Africa
| | - Tyler Bredenkamp
- Research Centre for Synthesis and Catalysis; Department of Chemistry; University of Johannesburg; PO Box 524 Auckland Park 2006 South Africa
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25
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Abstract
A gram-scale enantioselective total synthesis of (+)-peganumine A was accomplished in 7 steps from commercially available 6-methoxytryptamine. Key steps included (a) a Liebeskind-Srogl cross-coupling; (b) a one-pot construction of the tetracyclic skeleton from an ω-isocyano-γ-oxo-aldehyde via a sequence of an unprecedented C-C bond forming lactamization and a transannular condensation; (c) a one-pot organocatalytic process merging two achiral building blocks into an octacyclic structure via a sequence of enantioselective Pictet-Spengler reaction followed by a transannular cyclization. This last reaction created two spirocycles and a 2,7-diazabicyclo[2.2.1]heptan-3-one unit with excellent control of both the absolute and relative stereochemistry of the two newly created quaternary stereocenters.
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Affiliation(s)
- Cyril Piemontesi
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne , EPFL-SB-ISIC-LSPN, BCH5304, CH-1015 Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne , EPFL-SB-ISIC-LSPN, BCH5304, CH-1015 Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne , EPFL-SB-ISIC-LSPN, BCH5304, CH-1015 Lausanne, Switzerland
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26
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Abstract
The inducamides are a family of chlorinated alkaloids featuring an amide arising from union of an l-tryptophan to a rare chlorosalicylic acid unit, the production of which is linked to a chemically induced mutation in the RNA polymerase of Streptomyces sp. (SNC-109-M3). The synthesis of inducamides A and B has been accomplished by the coupling of 6-hydroxy-3-chloro-2-methylbenzoic acid with l-6-chlorotryptophan and l-tryptophan, respectively, followed by ester hydrolysis. The spectroscopic data and optical rotation for each synthetic sample confirm the structures of these silent secondary metabolites and their biosynthesis from l-tryptophan.
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Affiliation(s)
- Lydia M Scott
- School of Chemical Sciences, University of Auckland , 23 Symonds Street, Auckland, New Zealand
| | - Jonathan Sperry
- School of Chemical Sciences, University of Auckland , 23 Symonds Street, Auckland, New Zealand
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27
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Efficient Synthesis of Indole Derivatives via Tandem Cyclization Catalyzed by Magnetically Recoverable Palladium/Magnetite (Pd‐Fe
3
O
4
) Nanocrystals. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201500536] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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28
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Ito M, Tahara YK, Shibata T. Strategies for the Total Synthesis of Clavicipitic Acid. Chemistry 2016; 22:5468-77. [DOI: 10.1002/chem.201505014] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Mamoru Ito
- Department of Chemistry and Biochemistry; School of Advanced Science and Engineering; Waseda University, Shinjuku; Tokyo 169-8555 Japan
| | - Yu-ki Tahara
- Department of Chemistry and Biochemistry; School of Advanced Science and Engineering; Waseda University, Shinjuku; Tokyo 169-8555 Japan
| | - Takanori Shibata
- Department of Chemistry and Biochemistry; School of Advanced Science and Engineering; Waseda University, Shinjuku; Tokyo 169-8555 Japan
- ACT-C (Japan) Science and Technology Agency (JST); 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
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29
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Junk L, Kazmaier U. Synthesis of indoles and tryptophan derivatives via photoinduced nitrene C–H insertion. Org Biomol Chem 2016; 14:2916-23. [DOI: 10.1039/c5ob02563j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Functionalized indoles and tryptophans can be obtained from stannylated alkenes and o-iodoanilines via Stille coupling.
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Affiliation(s)
- Lukas Junk
- Institute of Organic Chemistry
- Saarland University
- 66041 Saarbrücken
- Germany
| | - Uli Kazmaier
- Institute of Organic Chemistry
- Saarland University
- 66041 Saarbrücken
- Germany
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30
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Jang SS, Youn SW. The cooperative FeCl3/DDQ system for the regioselective synthesis of 3-arylindoles from β-monosubstituted 2-alkenylanilines. Org Biomol Chem 2016; 14:2200-4. [DOI: 10.1039/c6ob00074f] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly regioselective synthesis of 3-arylindoles by using the cooperative FeCl3/DDQ system has been developed.
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Affiliation(s)
- Su San Jang
- Center for New Directions in Organic Synthesis
- Department of Chemistry and Research Institute for Natural Sciences
- Hanyang University
- Seoul 133-791
- Korea
| | - So Won Youn
- Center for New Directions in Organic Synthesis
- Department of Chemistry and Research Institute for Natural Sciences
- Hanyang University
- Seoul 133-791
- Korea
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31
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Tong S, Xu Z, Mamboury M, Wang Q, Zhu J. Aqueous Titanium Trichloride Promoted Reductive Cyclization ofo-Nitrostyrenes to Indoles: Development and Application to the Synthesis of Rizatriptan and Aspidospermidine. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505713] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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32
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Tong S, Xu Z, Mamboury M, Wang Q, Zhu J. Aqueous Titanium Trichloride Promoted Reductive Cyclization of
o
‐Nitrostyrenes to Indoles: Development and Application to the Synthesis of Rizatriptan and Aspidospermidine. Angew Chem Int Ed Engl 2015; 54:11809-12. [DOI: 10.1002/anie.201505713] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2015] [Revised: 07/12/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Shuo Tong
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL‐SB‐ISIC‐LSPN, BCH 5304, 1015 Lausanne (Switzerland) http://lspn.epfl.ch
| | - Zhengren Xu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL‐SB‐ISIC‐LSPN, BCH 5304, 1015 Lausanne (Switzerland) http://lspn.epfl.ch
| | - Mathias Mamboury
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL‐SB‐ISIC‐LSPN, BCH 5304, 1015 Lausanne (Switzerland) http://lspn.epfl.ch
| | - Qian Wang
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL‐SB‐ISIC‐LSPN, BCH 5304, 1015 Lausanne (Switzerland) http://lspn.epfl.ch
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL‐SB‐ISIC‐LSPN, BCH 5304, 1015 Lausanne (Switzerland) http://lspn.epfl.ch
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33
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Zhang F, Wang B, Prasad P, Capon RJ, Jia Y. Asymmetric Total Synthesis of (+)-Dragmacidin D Reveals Unexpected Stereocomplexity. Org Lett 2015; 17:1529-32. [DOI: 10.1021/acs.orglett.5b00327] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fengying Zhang
- State
Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical
Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Bin Wang
- State
Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical
Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Pritesh Prasad
- Institute
for Molecular Bioscience, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia
| | - Robert J. Capon
- Institute
for Molecular Bioscience, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia
| | - Yanxing Jia
- State
Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical
Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
- State
Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
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34
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Li L, Hu W, Jia Y. Synthetic studies of cyclic peptides stephanotic acid methyl ester, celogentin C, and moroidin. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.05.082] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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35
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Yao B, Wang Q, Zhu J. Mechanistic Study on the Palladium(II)-Catalyzed Synthesis of 2,3-Disubstituted Indoles Under Aerobic Conditions: Anion Effects and the Development of a Low-Catalyst-Loading Process. Chemistry 2014; 20:12255-61. [DOI: 10.1002/chem.201403612] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Indexed: 11/05/2022]
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36
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Total Synthesis of Dictyodendrins B and E, and Formal Synthesis of Dictyodendrin C. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402672] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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37
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Dinda BK, Basak S, Mal D. Regiospecific Synthesis of 7-Hydroxyindoles from Pyrroles by Anionic Benzannulation. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402486] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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38
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Cao L, Shen D, Wei J, Chen J, Deng H, Shao M, Shi J, Zhang H, Cao W. Facile Synthesis of 2-(Perfluoroalkyl)indoles through a Michael Addition/CuI-Catalyzed Annulation Process. European J Org Chem 2014. [DOI: 10.1002/ejoc.201400056] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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39
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Chittimalla SK, Bandi C, Putturu S, Kuppusamy R, Boellaard KC, Tan DCA, Lum DMJ. Access to 3-Arylindoles through a Tandem One-Pot Protocol Involving Dearomatization, a Regioselective Michael Addition Reaction, and Rearomatization. European J Org Chem 2014. [DOI: 10.1002/ejoc.201400079] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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40
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41
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Kumar Maji P, Ul Islam R, Kumar Bera S. RECENT PROGRESS IN METAL ASSISTED MULTICOMPONENT SYNTHESES OF HETEROCYCLES. HETEROCYCLES 2014. [DOI: 10.3987/rev-13-781] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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42
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Affiliation(s)
- Qiang Liu
- State
Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan
Road, Beijing 100191, China
| | - Yu-An Zhang
- State
Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan
Road, Beijing 100191, China
| | - Ping Xu
- State
Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan
Road, Beijing 100191, China
| | - Yanxing Jia
- State
Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan
Road, Beijing 100191, China
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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43
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Taddei M, Mura MG, Rajamäki S, Luca LD, Porcheddu A. Palladium-Catalysed Dehydrogenative Generation of Imines from Amines. A Nature-Inspired Route to IndolesviaCross-Couplings of Amines with Arylhydrazines. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300559] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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44
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Lee WI, Jung JW, Sim J, An H, Suh YG. Microwave-assisted synthesis of 3-substituted indoles via intramolecular arene–alkene coupling of o-iodoanilino enamines. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.06.101] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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45
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Putra AE, Takigawa K, Tanaka H, Ito Y, Oe Y, Ohta T. Transition-Metal-Catalyzed Regioselective Alkylation of Indoles with Alcohols. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300744] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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46
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Liu Q, Li Q, Ma Y, Jia Y. Direct Olefination at the C-4 Position of Tryptophan via C–H Activation: Application to Biomimetic Synthesis of Clavicipitic Acid. Org Lett 2013; 15:4528-31. [DOI: 10.1021/ol4020877] [Citation(s) in RCA: 139] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Qiang Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China, and State Key Laboratory of Drug Research, Shanghai Institute of Materia Media, Chinese Academy of Sciences, Shanghai 201203, China
| | - Qingjiang Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China, and State Key Laboratory of Drug Research, Shanghai Institute of Materia Media, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yongfan Ma
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China, and State Key Laboratory of Drug Research, Shanghai Institute of Materia Media, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yanxing Jia
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China, and State Key Laboratory of Drug Research, Shanghai Institute of Materia Media, Chinese Academy of Sciences, Shanghai 201203, China
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47
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Abstract
A concise total synthesis of rugulovasine A is achieved by using Uhle's ketone derivative as the key intermediate, which was synthesized by intramolecular cyclization via metal-halogen exchange. Two different routes to construct a spirocyclic butyrolactone subunit involving a Ru-catalyzed cyclocarbonylation and a special Ru-catalyzed double bond rearrangement were studied.
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Affiliation(s)
- Yu-An Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
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48
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Pd(II)-catalyzed aerobic oxidative intramolecular hydroamination and C–H functionalization of N-alkynyl anilines for the synthesis of indole derivatives. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.01.031] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Danner P, Morkunas M, Maier ME. Synthesis of D-abrines by palladium-catalyzed reaction of ortho-iodoanilines with N-Boc-N-methylalanyl-substituted acetaldehyde and acetylene. Org Lett 2013; 15:2474-7. [PMID: 23631420 DOI: 10.1021/ol4009409] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel strategy to N-Boc-N-methyl--tryptophans (abrine derivatives) was developed that relies on the palladium-catalyzed annulation of ortho-iodoanilines 12 with either N-Boc-N-methyl-propargylglycine 16 or aldehyde 11. Both 11 and 16 can be prepared from d-serine. An alternative route to propargylglycine 16 utilizes an enantioselective propargylation reaction of glycine imine 17.
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Affiliation(s)
- Paulami Danner
- Institut für Organische Chemie, Universität Tübingen , Auf der Morgenstelle 18, 72076 Tübingen, Germany
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