1
|
Liu J, Yao J, Du J, Yu L, Duan W, Xiao Y, Lei Z. Direct Synthesis of α-Ketoamides via Copper-Catalyzed Reductive Amidation of Nitroarenes with α-Oxocarboxylic Acids. J Org Chem 2024; 89:6575-6583. [PMID: 38656973 DOI: 10.1021/acs.joc.4c00237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Nitroarenes are known for their stability, low toxicity, easy availability, and cost-effectiveness, making them one of the most fundamental chemical feedstocks. The direct utilization of nitroarenes as nitrogen sources in amidation reactions offers significant advantages over using arylamines. Herein, we disclose a streamlined method for constructing α-ketoamides through the direct coupling of nitroarenes with α-oxocarboxylic acids. This transformation obviates the need for preparing, isolating, and purifying arylamines, leading to improved efficiency, cost-effectiveness, and time savings.
Collapse
Affiliation(s)
- Jialing Liu
- School of Chemistry and Chemical Engineering, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, Guangxi 530004, P. R. China
| | - Jiaxin Yao
- School of Chemistry and Chemical Engineering, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, Guangxi 530004, P. R. China
| | - Jiahui Du
- School of Chemistry and Chemical Engineering, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, Guangxi 530004, P. R. China
| | - Lin Yu
- School of Chemistry and Chemical Engineering, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, Guangxi 530004, P. R. China
| | - Wengui Duan
- School of Chemistry and Chemical Engineering, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, Guangxi 530004, P. R. China
| | - Yuxuan Xiao
- School of Chemistry and Chemical Engineering, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, Guangxi 530004, P. R. China
| | - Zhiguo Lei
- School of Chemistry and Chemical Engineering, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning, Guangxi 530004, P. R. China
| |
Collapse
|
2
|
Chio CM, Huang YC, Chou YC, Hsu FC, Lai YB, Yu CS. Boron Accumulation in Brain Tumor Cells through Boc-Protected Tryptophan as a Carrier for Boron Neutron Capture Therapy. ACS Med Chem Lett 2020; 11:589-596. [PMID: 32292568 PMCID: PMC7153283 DOI: 10.1021/acsmedchemlett.0c00064] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 03/16/2020] [Indexed: 12/16/2022] Open
Abstract
Boron neutron capture therapy (BNCT) is a binary therapeutic approach. Nonradioactive boron-10 atoms accumulated in tumor cells combining with the neutron beams produce two highly energetic particles that could eradicate the cell that takes it and the neighboring cells. Small molecules that carry boron atom, e.g. 5- and 6-boronated and 2,7-diboronated tryptophans, were assessed for their boron accumulation in U87-MG, LN229, and 3T3 for BNCT. TriBoc tryptophan, TB-6-BT, shows boron-10 at 300 ppm in both types of tumor cells with a tumor to normal ratio (T/N) of 5.19-5.25 (4 h). TB-5-BT and DBA-5-BT show boron-10 at 300 ppm (2 h) in U87-MG cells. TB-5-BT exerts a T/N of >9.66 (1 h) in LN229 compared with the current clinical boronophenyl alanine with a highest T/N of 2.3 (1 h) and accumulation concentration of <50 ppm. TB-5-BT and TB-6-BT warrant further animal study.
Collapse
Affiliation(s)
- Chun-Ming Chio
- Department
of Biomedical Engineering and Environmental Sciences, National Tsinghua University, Hsinchu 300, Taiwan
| | - Ying-Cheng Huang
- Department
of Neurosurgery, Chang-Gung Memorial Hospital
at Linkou, Taoyuan City 33302, Taiwan
| | - You-Cheng Chou
- Department
of Biomedical Engineering and Environmental Sciences, National Tsinghua University, Hsinchu 300, Taiwan
| | - Fu-Chun Hsu
- Department
of Biomedical Engineering and Environmental Sciences, National Tsinghua University, Hsinchu 300, Taiwan
| | - Yen-Buo Lai
- Department
of Biomedical Engineering and Environmental Sciences, National Tsinghua University, Hsinchu 300, Taiwan
| | - Chung-Shan Yu
- Department
of Biomedical Engineering and Environmental Sciences, National Tsinghua University, Hsinchu 300, Taiwan
- Institute
of Nuclear Engineering and Science, National
Tsinghua University, Hsinchu 300, Taiwan
| |
Collapse
|
3
|
Palmieri A. Synthesis of Heterocyclic Systems Starting from Carbonyl and Carboxyl Functionalized Nitro Compounds by One-Pot Processes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000079] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Alessandro Palmieri
- Green Chemistry Group; School of Science and Technology; Chemistry Division; University of Camerino; Via S. Agostino n. 1 62032 Camerino Italy
| |
Collapse
|
4
|
Qiao Z, Mardon K, Stimson DHR, Migotto MA, Reutens DC, Bhalla R. Synthesis and evaluation of 6-[18F]fluoro-3-(pyridin-3-yl)-1H-indole as potential PET tracer for targeting tryptophane 2, 3-dioxygenase (TDO). Nucl Med Biol 2020; 84-85:1-10. [PMID: 31927462 DOI: 10.1016/j.nucmedbio.2019.12.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/17/2019] [Accepted: 12/17/2019] [Indexed: 12/19/2022]
Abstract
INTRODUCTION The increase in expression of tryptophan 2, 3-dioxygenases (TDO) and indoleamine 2,3-dioxygenase (IDO) have been reported as potential tumor biomarkers. TDO and IDO are enzymes that catalyze the first and rate-limiting step of the kynurenine pathway. Positron emitting tomography (PET) tracers investigating the kynurenine pathway may allow for the detection of different disease pathologies in vivo including cancer. However, current PET tracers being developed for TDO and IDO have suffered from either multi-step low yielding syntheses or de-fluorination of the tracer in vivo. RESULTS TDO inhibitors based on 6-fluoroindole with C3 substituents are a class of small molecules that have been shown to bind to TDO effectively, restore tryptophan concentration and decrease the production of immunosuppressive metabolites. The compound 6-fluoro-3-(pyridine-3-yl)-1H-indole has been reported to have high in vitro affinity for TDO. Herein we report the fully automated radiosynthesis of 6-[18F]fluoro-3-(pyridine-3-yl)-1H-indole [18F]4 using a copper-mediated nucleophilic 18F-fluorination resulting in a non-corrected yield of 5 to 6% of the tracer with a radiochemical purity of >99% after 4 h. Small animal dynamic PET/CT imaging of [18F]4 intravenously injected into normal C57BL/6 mice revealed rapid accumulation in heart and brain, reaching maximum occupancy in heart (10.9% ID/g) and brain (8.1% ID/g) at 1.75 min and 2.25 min, respectively. Furthermore, these in vivo studies revealed no de-fluorination of the tracer, as evidence by the absence of [18F]fluoride accumulation in bone. CONCLUSION In vitro studies demonstrate that 4 has good affinity for hTDO and the radiolabeled analogue [18F]4 can be synthesized with suitable radiochemical yields. [18F]4 demonstrates good uptake in the brain and the radiolabeled compound shows no de-fluorination in vivo in C57BL/6 mice.
Collapse
Affiliation(s)
- Zheng Qiao
- Centre for Advanced Imaging, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia
| | - Karine Mardon
- Centre for Advanced Imaging, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia; National Imaging Facility, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia
| | - Damion H R Stimson
- Centre for Advanced Imaging, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia
| | - Mary-Anne Migotto
- Centre for Advanced Imaging, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia
| | - David C Reutens
- Centre for Advanced Imaging, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia
| | - Rajiv Bhalla
- Centre for Advanced Imaging, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia.
| |
Collapse
|
5
|
Kawabata H, Hirama T, Yanagisawa T, Sato K, Kogure N, Kitajima M, Takayama H. Asymmetric Total Synthesis of Biphenylquinolizidine Alkaloids 4″- O-Demethyllythridine and 14- epi-4″- O-Demethyllythridine. Org Lett 2019; 21:7982-7986. [PMID: 31524399 DOI: 10.1021/acs.orglett.9b02962] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The first asymmetric total synthesis of new biphenylquinolizidine alkaloids 4″-O-demethyllythridine and 14-epi-4″-O-demethyllythridine isolated from Heimia salicifolia was accomplished. The key steps in the synthesis were a copper(I)-catalyzed asymmetric intramolecular aza-Michael reaction to build a chiral 4-arylquinolizidine unit and an intramolecular Suzuki-Miyaura cross-coupling reaction to construct a macrolactone ring comprising a biphenyl moiety.
Collapse
Affiliation(s)
- Haruka Kawabata
- Graduate School of Pharmaceutical Sciences , Chiba University , 1-8-1 Inohana , Chuo-ku, Chiba 260-8675 , Japan
| | - Taku Hirama
- Graduate School of Pharmaceutical Sciences , Chiba University , 1-8-1 Inohana , Chuo-ku, Chiba 260-8675 , Japan
| | - Tomomi Yanagisawa
- Graduate School of Pharmaceutical Sciences , Chiba University , 1-8-1 Inohana , Chuo-ku, Chiba 260-8675 , Japan
| | - Keigo Sato
- Graduate School of Pharmaceutical Sciences , Chiba University , 1-8-1 Inohana , Chuo-ku, Chiba 260-8675 , Japan
| | - Noriyuki Kogure
- Graduate School of Pharmaceutical Sciences , Chiba University , 1-8-1 Inohana , Chuo-ku, Chiba 260-8675 , Japan
| | - Mariko Kitajima
- Graduate School of Pharmaceutical Sciences , Chiba University , 1-8-1 Inohana , Chuo-ku, Chiba 260-8675 , Japan
| | - Hiromitsu Takayama
- Graduate School of Pharmaceutical Sciences , Chiba University , 1-8-1 Inohana , Chuo-ku, Chiba 260-8675 , Japan
| |
Collapse
|
6
|
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.
Collapse
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
| |
Collapse
|
7
|
Li PG, Zhu H, Fan M, Yan C, Shi K, Chi XW, Zou LH. Copper-catalyzed coupling of anthranils and α-keto acids: direct synthesis of α-ketoamides. Org Biomol Chem 2019; 17:5902-5907. [DOI: 10.1039/c9ob00822e] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Copper-catalyzed coupling of α-keto acids with anthranils is reported for the synthesis of α-ketoamides bearing an aldehyde group via N–O/C–O bond cleavages and C–N bond formation.
Collapse
Affiliation(s)
- Ping-Gui Li
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
| | - Hao Zhu
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
| | - Min Fan
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
| | - Cheng Yan
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
| | - Kai Shi
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
| | - Xi-Wen Chi
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
| | - Liang-Hua Zou
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Pharmaceutical Sciences
- Jiangnan University
- Wuxi 214122
| |
Collapse
|
8
|
Sultan S, Shah BA. Carbon‐Carbon and Carbon‐Heteroatom Bond Formation Reactions Using Unsaturated Carbon Compounds. CHEM REC 2018; 19:644-660. [DOI: 10.1002/tcr.201800095] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 09/12/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Shaista Sultan
- Natural Product Chemistry Division and AcSIRCSIR-Indian Institute of Integrative Medicine Jammu- 180001
| | - Bhahwal Ali Shah
- Natural Product Chemistry Division and AcSIRCSIR-Indian Institute of Integrative Medicine Jammu- 180001
| |
Collapse
|
9
|
A highly selective fluorescence switch for Cu2+ and Fe3+ based on a new diarylethene with a triazole-linked rhodamine 6G unit. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.07.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
10
|
Muthukumar A, Sangeetha S, Sekar G. Recent developments in functionalization of acyclic α-keto amides. Org Biomol Chem 2018; 16:7068-7083. [DOI: 10.1039/c8ob01423j] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review describes the synthetic utility of α-keto amides to synthesize various important molecules via mono, dual and triple functionalization reactions.
Collapse
Affiliation(s)
- Alagesan Muthukumar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600 036
- India
| | - Subramani Sangeetha
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600 036
- India
| | - Govindasamy Sekar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600 036
- India
| |
Collapse
|
11
|
Sampaolesi S, Gabrielli S, Ballini R, Palmieri A. Two-Step Synthesis of Polysubstituted 6-Nitroindoles under Flow Chemical and Microwave Conditions. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700790] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Susanna Sampaolesi
- Green Chemistry Group, School of Sciences and Technology, Chemistry Division; University of Camerino; Via S. Agostino n. 1 62032 Camerino (MC Italy
| | - Serena Gabrielli
- Green Chemistry Group, School of Sciences and Technology, Chemistry Division; University of Camerino; Via S. Agostino n. 1 62032 Camerino (MC Italy
| | - Roberto Ballini
- Green Chemistry Group, School of Sciences and Technology, Chemistry Division; University of Camerino; Via S. Agostino n. 1 62032 Camerino (MC Italy
| | - Alessandro Palmieri
- Green Chemistry Group, School of Sciences and Technology, Chemistry Division; University of Camerino; Via S. Agostino n. 1 62032 Camerino (MC Italy
| |
Collapse
|
12
|
Haydl AM, Breit B. The Total Synthesis of Epothilone D as a Yardstick for Probing New Methodologies. Chemistry 2016; 23:541-545. [DOI: 10.1002/chem.201605011] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Alexander M. Haydl
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
| | - Bernhard Breit
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
| |
Collapse
|
13
|
Ganss S, Breit B. Enantioselective Rhodium-Catalyzed Atom-Economical Macrolactonization. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604301] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Stephanie Ganss
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
| | - Bernhard Breit
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
| |
Collapse
|
14
|
Ganss S, Breit B. Enantioselective Rhodium-Catalyzed Atom-Economical Macrolactonization. Angew Chem Int Ed Engl 2016; 55:9738-42. [DOI: 10.1002/anie.201604301] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Stephanie Ganss
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
| | - Bernhard Breit
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
| |
Collapse
|
15
|
De Risi C, Pollini GP, Zanirato V. Recent Developments in General Methodologies for the Synthesis of α-Ketoamides. Chem Rev 2016; 116:3241-305. [DOI: 10.1021/acs.chemrev.5b00443] [Citation(s) in RCA: 130] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Carmela De Risi
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università degli Studi di Ferrara, Via Fossato di Mortara 17, 44121 Ferrara, Italy
| | - Gian Piero Pollini
- Istituto Universitario
di Studi Superiori “IUSS−Ferrara 1391”, Via delle Scienze 41/b, 44121 Ferrara, Italy
| | - Vinicio Zanirato
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università degli Studi di Ferrara, Via Fossato di Mortara 17, 44121 Ferrara, Italy
| |
Collapse
|
16
|
Sun J, Chen L, Liu C, Wang Z, Zuo D, Pan J, Qi H, Bao K, Wu Y, Zhang W. Synthesis and Biological Evaluations of 1,2-Diaryl Pyrroles as Analogues of Combretastatin A-4. Chem Biol Drug Des 2015. [DOI: 10.1111/cbdd.12617] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Jun Sun
- Clinical Pharmacology Laboratory; Henan Province People's Hospital; Zhengzhou University People's Hospital; 7 Weiwu Road Jinshui District Zhengzhou 450003 China
- Key Laboratory of Structure-Based Drug Design and Discovery; Ministry of Education; Shenyang Pharmaceutical University; 103 Wenhua Road Shenhe District Shenyang 110016 China
| | - Lei Chen
- Key Laboratory of Structure-Based Drug Design and Discovery; Ministry of Education; Shenyang Pharmaceutical University; 103 Wenhua Road Shenhe District Shenyang 110016 China
| | - Chunjiang Liu
- Department of Pharmacology; Shenyang Pharmaceutical University; 103 Wenhua Road Shenhe District Shenyang 110016 China
| | - Zhan Wang
- Key Laboratory of Structure-Based Drug Design and Discovery; Ministry of Education; Shenyang Pharmaceutical University; 103 Wenhua Road Shenhe District Shenyang 110016 China
| | - Daiying Zuo
- Department of Pharmacology; Shenyang Pharmaceutical University; 103 Wenhua Road Shenhe District Shenyang 110016 China
| | - Jiatong Pan
- Key Laboratory of Structure-Based Drug Design and Discovery; Ministry of Education; Shenyang Pharmaceutical University; 103 Wenhua Road Shenhe District Shenyang 110016 China
| | - Huan Qi
- Department of Pharmacology; Shenyang Pharmaceutical University; 103 Wenhua Road Shenhe District Shenyang 110016 China
| | - Kai Bao
- Key Laboratory of Structure-Based Drug Design and Discovery; Ministry of Education; Shenyang Pharmaceutical University; 103 Wenhua Road Shenhe District Shenyang 110016 China
- Division of Hematology/Oncology; Department of Medicine; Beth Israel Deaconess Medical Center and Harvard Medical School; Boston MA 02215 USA
| | - Yingliang Wu
- Department of Pharmacology; Shenyang Pharmaceutical University; 103 Wenhua Road Shenhe District Shenyang 110016 China
| | - Weige Zhang
- Key Laboratory of Structure-Based Drug Design and Discovery; Ministry of Education; Shenyang Pharmaceutical University; 103 Wenhua Road Shenhe District Shenyang 110016 China
| |
Collapse
|
17
|
Li H, Scott JP, Chen CY, Journet M, Belyk K, Balsells J, Kosjek B, Baxter CA, Stewart GW, Wise C, Alam M, Song ZJ, Tan L. Synthesis of Bis-Macrocyclic HCV Protease Inhibitor MK-6325 via Intramolecular sp2–sp3 Suzuki–Miyaura Coupling and Ring Closing Metathesis. Org Lett 2015; 17:1533-6. [DOI: 10.1021/acs.orglett.5b00418] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Hongmei Li
- Department
of Process Chemistry, Merck Research Laboratories, P.O. Box 2000, Rahway, New
Jersey 07065, United States
| | - Jeremy P. Scott
- Department of Process Chemistry, Merck Sharp & Dohme Research Laboratories, Hertford Road, Hoddesdon, Hertfordshire, EN11 9BU, U.K
| | - Cheng-yi Chen
- Department
of Process Chemistry, Merck Research Laboratories, P.O. Box 2000, Rahway, New
Jersey 07065, United States
| | - Michel Journet
- Department
of Process Chemistry, Merck Research Laboratories, P.O. Box 2000, Rahway, New
Jersey 07065, United States
| | - Kevin Belyk
- Department
of Process Chemistry, Merck Research Laboratories, P.O. Box 2000, Rahway, New
Jersey 07065, United States
| | - Jaume Balsells
- Department
of Process Chemistry, Merck Research Laboratories, P.O. Box 2000, Rahway, New
Jersey 07065, United States
| | - Birgit Kosjek
- Department
of Process Chemistry, Merck Research Laboratories, P.O. Box 2000, Rahway, New
Jersey 07065, United States
| | - Carl A. Baxter
- Department of Process Chemistry, Merck Sharp & Dohme Research Laboratories, Hertford Road, Hoddesdon, Hertfordshire, EN11 9BU, U.K
| | - Gavin W. Stewart
- Department of Process Chemistry, Merck Sharp & Dohme Research Laboratories, Hertford Road, Hoddesdon, Hertfordshire, EN11 9BU, U.K
| | - Christopher Wise
- Department of Process Chemistry, Merck Sharp & Dohme Research Laboratories, Hertford Road, Hoddesdon, Hertfordshire, EN11 9BU, U.K
| | - Mahbub Alam
- Department of Process Chemistry, Merck Sharp & Dohme Research Laboratories, Hertford Road, Hoddesdon, Hertfordshire, EN11 9BU, U.K
| | - Zhiguo Jake Song
- Department
of Process Chemistry, Merck Research Laboratories, P.O. Box 2000, Rahway, New
Jersey 07065, United States
| | - Lushi Tan
- Department
of Process Chemistry, Merck Research Laboratories, P.O. Box 2000, Rahway, New
Jersey 07065, United States
| |
Collapse
|
18
|
Ronson TO, Taylor RJ, Fairlamb IJ. Palladium-catalysed macrocyclisations in the total synthesis of natural products. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.11.009] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
19
|
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]
|
20
|
Huang H, He G, Zhu X, Jin X, Qiu S, Zhu H. Iodine-Mediated Oxidation of Ynamides: A Facile Access toN-Monosubstituted α-Ketoamides and α-Ketoimides. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402538] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
21
|
Coste A, Bayle A, Marrot J, Evano G. A Convergent Synthesis of the Fully Elaborated Macrocyclic Core of TMC-95A. Org Lett 2014; 16:1306-9. [DOI: 10.1021/ol403675c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Alexis Coste
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles Saint-Quentin-en-Yvelines, 45, avenue des Etats-Unis, 78035 Versailles Cedex, France
| | - Alexandre Bayle
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles Saint-Quentin-en-Yvelines, 45, avenue des Etats-Unis, 78035 Versailles Cedex, France
| | - Jérome Marrot
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles Saint-Quentin-en-Yvelines, 45, avenue des Etats-Unis, 78035 Versailles Cedex, France
| | - Gwilherm Evano
- Laboratoire
de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université Libre de Bruxelles, Avenue F. D. Roosevelt 50, CP160/06, 1050 Brussels, Belgium
| |
Collapse
|
22
|
|
23
|
Varma H, Gangadhar NM, Letso RR, Wolpaw AJ, Sriramaratnam R, Stockwell BR. Identification of a small molecule that induces ATG5-and-cathepsin-l-dependent cell death and modulates polyglutamine toxicity. Exp Cell Res 2013; 319:1759-1773. [PMID: 23588206 DOI: 10.1016/j.yexcr.2013.03.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Revised: 02/27/2013] [Accepted: 03/02/2013] [Indexed: 01/03/2023]
Abstract
Non-apoptotic cell death mechanisms are largely uncharacterized despite their importance in physiology and disease [1]. Here we sought to systematically identify non-apoptotic cell death pathways in mammalian cells. We screened 69,612 compounds for those that induce non-canonical cell death by counter screening in the presence of inhibitors of apoptosis and necrosis. We further selected compounds that require active protein synthesis for inducing cell death. Using this tiered approach, we identified NID-1 (Novel Inducer of Death-1), a small molecule that induces an active, energy-dependent cell death in diverse mammalian cell lines. NID-1-induced death required components of the autophagic machinery, including ATG5, and the lysosomal hydrolase cathepsin L, but was distinct from classical macroautophagy. Since macroautophagy can prevent cell death in several contexts, we tested and found that NID-1 suppressed cell death in a cell-based model of Huntington's disease, suggesting that NID-1 activates a specific pathway. Thus the discovery of NID-1 identifies a previously unexplored cell death pathway, and modulating this pathway may have therapeutic applications. Furthermore, these findings provide a proof-of-principle for using chemical screening to identify novel cell death paradigms.
Collapse
Affiliation(s)
- Hemant Varma
- Howard Hughes Medical Institute, Department of Biological Sciences, Columbia University, Northwest Corner Building, MC 4846, 550 West 120th Street, New York, NY 10027, United States; Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY 10032, United States
| | - Nidhi M Gangadhar
- Howard Hughes Medical Institute, Department of Biological Sciences, Columbia University, Northwest Corner Building, MC 4846, 550 West 120th Street, New York, NY 10027, United States
| | - Reka R Letso
- Howard Hughes Medical Institute, Department of Biological Sciences, Columbia University, Northwest Corner Building, MC 4846, 550 West 120th Street, New York, NY 10027, United States
| | - Adam J Wolpaw
- Howard Hughes Medical Institute, Department of Biological Sciences, Columbia University, Northwest Corner Building, MC 4846, 550 West 120th Street, New York, NY 10027, United States
| | - Rohitha Sriramaratnam
- Howard Hughes Medical Institute, Department of Biological Sciences, Columbia University, Northwest Corner Building, MC 4846, 550 West 120th Street, New York, NY 10027, United States
| | - Brent R Stockwell
- Howard Hughes Medical Institute, Department of Biological Sciences, Columbia University, Northwest Corner Building, MC 4846, 550 West 120th Street, New York, NY 10027, United States; Department of Chemistry, Columbia University, Northwest Corner Building, MC 4846, 550 West 120th Street, New York, NY 10027, United States.
| |
Collapse
|
24
|
Abstract
Herein we report a systematic study of the Larock indole annulation designed to explore the scope and define the generality of its use in macrocyclization reactions, its use in directly accessing the chloropeptin I versus II DEF ring system as well as key unnatural isomers, its utility for both peptide-derived and more conventional carbon-chain based macrocycles, and its extension to intramolecular cyclizations with formation of common ring sizes. The studies define a powerful method complementary to the Stille or Suzuki cross-coupling reactions for the synthesis of cyclic or macrocyclic ring systems containing an embedded indole, tolerating numerous functional groups and incorporating various (up to 28-membered) ring sizes. As a result of the efforts to expand the usefulness and scope of the reaction, we also disclose a catalytic variant of the reaction, along with a powerful Pd(2)(dba)(3)-derived catalyst system, and an examination of the factors impacting reactivity and catalysis.
Collapse
Affiliation(s)
- Steven P. Breazzano
- Department of Chemistry and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Yam B. Poudel
- Department of Chemistry and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Dale L. Boger
- Department of Chemistry and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| |
Collapse
|
25
|
Chen DYK, Youn SW. C-H activation: a complementary tool in the total synthesis of complex natural products. Chemistry 2012; 18:9452-74. [PMID: 22736530 DOI: 10.1002/chem.201201329] [Citation(s) in RCA: 451] [Impact Index Per Article: 37.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Indexed: 02/05/2023]
Abstract
The recent advent of transition-metal mediated C-H activation is revolutionizing the synthetic field and gradually infusing a "C-H activation mind-set" in both students and practitioners of organic synthesis. As a powerful testament of this emerging synthetic tool, applications of C-H activation in the context of total synthesis of complex natural products are beginning to blossom. Herein, recently completed total syntheses showcasing creative and ingenious incorporation of C-H activation as a strategic manoeuver are compared with their "non-C-H activation" counterparts, illuminating a new paradigm in strategic synthetic design.
Collapse
Affiliation(s)
- David Y-K Chen
- Department of Chemistry, Seoul National University, Gwanak-ro, Gwanak-gu, Seoul 151-742, South Korea.
| | | |
Collapse
|
26
|
Abstract
Trigonoliimine B, a hexacyclic alkaloid, is synthesized in seven steps from simple starting materials. The synthesis features the use of an α-isocyanoacetate as a glycine template for the preparation of an α,α-disubstituted α-amino ester that is appropriately functionalized for the construction of C, D, and E rings. Sulfolane was found to be the solvent of choice for the unprecedented Bischler-Napieralski reaction implemented for the construction of a seven-membered ring with concurrent formation of an exo-imine function.
Collapse
Affiliation(s)
- Thomas Buyck
- Institut of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, CH-1015 Lausanne, Switzerland
| | | | | |
Collapse
|
27
|
|
28
|
Gulder T, Baran PS. Strained cyclophane natural products: Macrocyclization at its limits. Nat Prod Rep 2012; 29:899-934. [DOI: 10.1039/c2np20034a] [Citation(s) in RCA: 102] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
29
|
A straightforward synthesis of N-monosubstituted α-keto amides via aerobic benzylic oxidation of amides. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.11.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
30
|
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 Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Yanxing Jia
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China, and Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| |
Collapse
|
31
|
Gerfaud T, Xie C, Neuville L, Zhu J. Protecting-Group-Free Total Synthesis of (E)- and (Z)-Alstoscholarine. Angew Chem Int Ed Engl 2011; 50:3954-7. [DOI: 10.1002/anie.201100257] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2011] [Indexed: 11/11/2022]
|
32
|
Gerfaud T, Xie C, Neuville L, Zhu J. Protecting-Group-Free Total Synthesis of (E)- and (Z)-Alstoscholarine. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201100257] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
33
|
Marsault E, Peterson ML. Macrocycles Are Great Cycles: Applications, Opportunities, and Challenges of Synthetic Macrocycles in Drug Discovery. J Med Chem 2011; 54:1961-2004. [DOI: 10.1021/jm1012374] [Citation(s) in RCA: 591] [Impact Index Per Article: 45.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Eric Marsault
- Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, Sherbrooke Québec, J1H5N4, Canada
| | - Mark L. Peterson
- Tranzyme Pharma Inc., 3001 12e Avenue Nord, Sherbrooke, Québec, J1H5N4, Canada
| |
Collapse
|
34
|
|
35
|
Dufour J, Neuville L, Zhu J. Intramolecular Suzuki-Miyaura reaction for the total synthesis of signal peptidase inhibitors, arylomycins A(2) and B(2). Chemistry 2010; 16:10523-34. [PMID: 20658499 DOI: 10.1002/chem.201000924] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Development of the total syntheses of arylomycins A(1) and B(2) is detailed. Key features of our approach include 1) formation of 14-membered meta,meta-cyclophane by an intramolecular Suzuki-Miyaura reaction; 2) incorporation of N-Me-4-hydroxyphenylglycine into the cyclization precursor, which avoids the late-stage low-yielding N-methylation step; 3) segment coupling of a fully elaborated peptide side chain to the macrocycle, which makes the synthesis highly convergent. Overall, arylomycin A(2) was obtained in 13 steps from L-Tyr for the longest linear sequence, in 13 % overall yield. Arylomycin B(2) was synthesized in 10 steps from L-3-nitro-Tyr, in 10 % overall yield.
Collapse
Affiliation(s)
- Jeremy Dufour
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, 1, avenue de la terrasse, 91198 Gif-sur-Yvette, France
| | | | | |
Collapse
|
36
|
Xu Z, Hu W, Liu Q, Zhang L, Jia Y. Total Synthesis of Clavicipitic Acid and Aurantioclavine: Stereochemistry of Clavicipitic Acid Revisited. J Org Chem 2010; 75:7626-35. [DOI: 10.1021/jo101506c] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhengren Xu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Weimin Hu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Qiang Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Lihe Zhang
- 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
| |
Collapse
|
37
|
Shimamura H, Breazzano SP, Garfunkle J, Kimball FS, Trzupek JD, Boger DL. Total synthesis of complestatin: development of a Pd(0)-mediated indole annulation for macrocyclization. J Am Chem Soc 2010; 132:7776-83. [PMID: 20469945 PMCID: PMC2892899 DOI: 10.1021/ja102304p] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Full details of the initial development and continued examination of a powerful intramolecular palladium(0)-mediated indole annulation for macrocyclization closure of the strained 16-membered biaryl ring system found in complestatin (1, chloropeptin II) and the definition of factors impacting its intrinsic atropodiastereoselectivity are described. Its examination and use in an alternative, second-generation total synthesis of complestatin are detailed in which the order of the macrocyclization reactions was reversed from our first-generation total synthesis. In this approach and with the ABCD biaryl ether ring system in place, the key Larock cyclization was conducted with substrate 36 (containing four phenols, five secondary amides, one carbamate, and four labile aryl chlorides) and provided the product 37 (56%) exclusively as a single atropisomer (>20:1, detection limits) possessing the natural (R)-configuration. In this instance, the complexity of the substrate and the reverse macrocyclization order did not diminish the atropodiastereoselectivity; rather, it provided an improvement over the 4:1 selectivity that was observed with the analogous substrate used to provide the isolated DEF ring system in our first-generation approach. Just as significant, the atroposelectivity represents a complete reversal of the diasteroselectivity observed with analogous macrocyclizations conducted using a Suzuki biaryl coupling.
Collapse
Affiliation(s)
- Hiroyuki Shimamura
- Department of Chemistry and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Steven P. Breazzano
- Department of Chemistry and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Joie Garfunkle
- Department of Chemistry and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - F. Scott Kimball
- Department of Chemistry and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - John D. Trzupek
- Department of Chemistry and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Dale L. Boger
- Department of Chemistry and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| |
Collapse
|
38
|
Wang Z, Bois-Choussy M, Jia Y, Zhu J. Total Synthesis of Complestatin (Chloropeptin II). Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200906797] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
39
|
Wang Z, Bois-Choussy M, Jia Y, Zhu J. Total Synthesis of Complestatin (Chloropeptin II). Angew Chem Int Ed Engl 2010; 49:2018-22. [DOI: 10.1002/anie.200906797] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
40
|
Hu W, Zhang F, Xu Z, Liu Q, Cui Y, Jia Y. Stereocontrolled and Efficient Total Synthesis of (−)-Stephanotic Acid Methyl Ester and (−)-Celogentin C. Org Lett 2010; 12:956-9. [DOI: 10.1021/ol902944f] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Weimin Hu
- 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 Media, Chinese Academy of Sciences, Shanghai 201203, China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Fengying Zhang
- 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 Media, Chinese Academy of Sciences, Shanghai 201203, China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Zhengren Xu
- 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 Media, Chinese Academy of Sciences, Shanghai 201203, China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Qiang Liu
- 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 Media, Chinese Academy of Sciences, Shanghai 201203, China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Yuxin Cui
- 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 Media, Chinese Academy of Sciences, Shanghai 201203, China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, 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 Drug Research, Shanghai Institute of Materia Media, Chinese Academy of Sciences, Shanghai 201203, China, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| |
Collapse
|
41
|
Li BTY, White JM, Hutton CA. Synthesis of the Leu - Trp Component of the Celogentin Family of Cyclic Peptides Through a C - H Activation - Cross-Coupling Strategy. Aust J Chem 2010. [DOI: 10.1071/ch10033] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A bioinspired approach to the central leucine(C3)–tryptophan(C6) cross-linked moiety present in the celogentin family of cyclic peptide natural products was achieved. The key transformation was enabled through a palladium-catalyzed C–H activation–cross-coupling of leucine quinoline amide and 6-iodotryptophan derivatives. X-Ray crystallographic analysis of a β-(indol-6-yl)-leucine derivative confirms the stereochemistry of the cross-linked adduct matches that of the natural products. The method enables the preparation of the Leu–Trp adduct as a single stereoisomer from l-leucine and l-tryptophan.
Collapse
|
42
|
Molander G, Canturk B. Organotrifluorborate und einfach koordinierte Palladiumkomplexe als Katalysatoren â die perfekte Kombination für die Suzuki-Miyaura-Kupplung. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200904306] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
43
|
Garfunkle J, Kimball FS, Trzupek JD, Takizawa S, Shimamura H, Tomishima M, Boger DL. Total synthesis of chloropeptin II (complestatin) and chloropeptin I. J Am Chem Soc 2009; 131:16036-8. [PMID: 19839632 PMCID: PMC2783344 DOI: 10.1021/ja907193b] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The first total synthesis of chloropeptin II (1, complestatin) is disclosed. Key elements of the approach include the use of an intramolecular Larock indole synthesis for the initial macrocyclization, adopting conditions that permit utilization of a 2-bromoaniline, incorporating a terminal alkyne substituent (-SiEt(3)) that sterically dictates the indole cyclization regioselectivity, and benefiting from an aniline protecting group (-Ac) that enhances the atropdiastereoselectivity and diminishes the strained indole reactivity toward subsequent electrophilic reagents. Not only did this key reaction provide the fully functionalized right-hand ring system of 1 in superb conversion (89%) and good atropdiastereoselectivity (4:1 R:S), but it also represents the first reported example of what will prove to be a useful Larock macrocyclization strategy. Subsequent introduction of the left-hand ring system enlisting an aromatic nucleophilic substitution reaction for macrocyclization with biaryl ether formation completed the assemblage of the core bicyclic structure of 1. Intrinsic in the design of the approach and by virtue of the single-step acid-catalyzed conversion of chloropeptin II (1) to chloropeptin I (2), the route also provides a total synthesis of 2.
Collapse
Affiliation(s)
- Joie Garfunkle
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
| | | | | | | | | | | | | |
Collapse
|
44
|
Hu C, Qin H, Cui Y, Jia Y. Palladium-catalyzed synthesis of tryptamines and tryptamine homologues: synthesis of psilocin. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.09.050] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
45
|
Abstract
A convergent and highly stereocontrolled total synthesis of the cytotoxic macrolide (+)-superstolide A is described. Key features of this synthesis include the use of bimetallic linchpin 36b for uniting the C(1)-C(15) (43) and the C(20)-C(27) (38) fragments of the natural product, a late-stage Suzuki macrocyclization of 49, and a highly diastereoselective transannular Diels-Alder reaction of macrocyclic octaene 4. In contrast, the intramolecular Diels-Alder reaction of pentaenal 5 provided the desired cycloadduct with lower stereoselectivity (6:1:1).
Collapse
Affiliation(s)
- Mariola Tortosa
- Department of Chemistry, Scripps Florida, Jupiter, Florida 33458, USA
| | | | | |
Collapse
|
46
|
Zheng J, Yin B, Huang W, Li X, Yao H, Liu Z, Zhang J, Jiang S. Efficient and selective cleavage of the t-butoxycarbonyl group from di-t-butylimidodicarbonate using catalytic bismuth(III) bromide in acetonitrile. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.06.104] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
47
|
Xu Z, Li Q, Zhang L, Jia Y. Efficient Total Synthesis of (−)-cis-Clavicipitic Acid. J Org Chem 2009; 74:6859-62. [DOI: 10.1021/jo9012755] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhengren Xu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Qingjiang Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Lihe Zhang
- 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
| |
Collapse
|
48
|
Molander GA, Canturk B. Organotrifluoroborates and monocoordinated palladium complexes as catalysts--a perfect combination for Suzuki-Miyaura coupling. Angew Chem Int Ed Engl 2009; 48:9240-61. [PMID: 19899086 PMCID: PMC2917751 DOI: 10.1002/anie.200904306] [Citation(s) in RCA: 381] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Monocoordinated palladium catalysts derived from sterically hindered, electron-rich phosphines or N-heterocyclic carbenes have revolutionized the Suzuki-Miyaura coupling reaction. The emergence of organotrifluoroborates has provided important new perspectives for the organoboron component of these reactions. In combination, these two components prove to be extraordinarily powerful partners for cross-coupling reactions.
Collapse
Affiliation(s)
- Gary A Molander
- Department of Chemistry, University of Pennsylvania, 231 S. 34th Street, Philadelphia, PA 19104-6323, USA.
| | | |
Collapse
|
49
|
Bringmann G, Rüdenauer S, Bruhn T, Benson L, Brun R. Total synthesis of the antimalarial naphthylisoquinoline alkaloid 5-epi-4′-O-demethylancistrobertsonine C by asymmetric Suzuki cross-coupling. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.03.087] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
50
|
Jia Y, Bois-Choussy M, Zhu J. Synthesis of Diastereomers of Complestatin and Chloropeptin I: Substrate-Dependent Atropstereoselectivity of the Intramolecular Suzuki–Miyaura Reaction. Angew Chem Int Ed Engl 2008; 47:4167-72. [DOI: 10.1002/anie.200800599] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|