1
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He Y, Bian KJ, Liu P, Jiang CH, Jin RX, West JG, Wang XS. Remote Functionalization of Inert C(sp 3)-H Bonds via Dual Catalysis Driven by Alkene Hydrofluoroalkylation Using Industrial Feedstocks. Org Lett 2024; 26:8278-8283. [PMID: 39298654 DOI: 10.1021/acs.orglett.4c02901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2024]
Abstract
We have developed a dual-catalytic system capable of site-selective azidation of inert C(sp3)-H bonds with concomitant and modular anti-Markovnikov alkene fluoroalkylation. The protocol leverages the synergetic cooperation of both the photocatalyst and earth-abundant iron catalyst to deliver two radical species in succession to minimally functionalized alkenes. This powerful catalyst system exhibits broad scope, mild conditions, and excellent regioselectivity for a variety of substrates and fluoroalkyl fragments. The key to this C-centered radical relay is the matched rate of both photocatalytic and iron catalytic cycles, ensuring selective azidofluoroalkylation with a broad array of fluoroalkyl sources from trivial reagents.
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Affiliation(s)
- Yan He
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, People's Republic of China
| | - Kang-Jie Bian
- Department of Chemistry, Rice University, 6500 Main Street, Houston, Texas 77030, United States
| | - Peng Liu
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, People's Republic of China
| | - Chen-Hui Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, People's Republic of China
| | - Ruo-Xing Jin
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, People's Republic of China
| | - Julian G West
- Department of Chemistry, Rice University, 6500 Main Street, Houston, Texas 77030, United States
| | - Xi-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, People's Republic of China
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2
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Ji CB. Advances and Strategies towards Synthesis of Aspidosperma Indole Alkaloids Goniomitine. Chem Biodivers 2024; 21:e202400416. [PMID: 38587971 DOI: 10.1002/cbdv.202400416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 03/31/2024] [Accepted: 04/04/2024] [Indexed: 04/10/2024]
Abstract
Goniomitine is of the aspidosperma alkaloid family, with an angularly fused tetracyclic skeleton housing an all-carbon quaternary carbon chiral center alongside an aminal functional group. This natural product has garnered attention as a synthetic target due to its intriguing molecular architecture and anti-proliferative activity in recent years. Following the first synthesis of (-)-goniomitine by Takano in 1991, synthetic chemists have developed various methods. This review provides an overview of the methodologies used in the synthesis of goniomitine in racemic and enantiopure forms via divergent construction indole framework, indole functionalization, and the integrated oxidation/reduction/cyclization (iORC) sequence from 1991 to 2023.
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Affiliation(s)
- Cong-Bin Ji
- School of Chemistry and Environmental Sciences, Shangrao Normal University, 334001, Shangrao, P. R. China
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3
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Li Y, Paola E, Wang Z, Menard G, Zakarian A. Lithium Enolate with a Lithium-Alkyne Interaction in the Enantioselective Construction of Quaternary Carbon Centers: Concise Synthesis of (+)-Goniomitine. Angew Chem Int Ed Engl 2022; 61:e202209987. [PMID: 36251869 PMCID: PMC9798608 DOI: 10.1002/anie.202209987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Indexed: 11/09/2022]
Abstract
We report a method for direct enantioselective alkylation of 3-alkynoic and 2,3-alkendioic acids that form quaternary stereogenic centers, and application of this method to the total enantioselective synthesis of a complex alkaloid (+)-goniomitine. The methods were effective in the alkylation of both 3-alkynoic acids, 2,3-alkendioic acids substrates with a broad range of heterocyclic and functionalized alkyl group substituents. Accompanying crystallographic studies provide mechanistic insight into the structure of well-defined chiral aggregates, highlighting cation-π interactions between lithium and alkyne groups.
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Affiliation(s)
- Yang Li
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Elena Paola
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Zongheng Wang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Gabriel Menard
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Armen Zakarian
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
- Center for Integrative Biology, Faculty of Sciences, Geroscience Center for Brain Health and Metabolism, Universidad Mayor, Santiago, Chile
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4
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Li Y, Paola E, Wang Z, Menard G, Zakarian A. Lithium Enolate with a Lithium‐Alkyne Interaction in the Enantioselective Construction of Quaternary Carbon Centers: Concise Synthesis of (+)‐Goniomitine. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yang Li
- Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Elena Paola
- Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Zongheng Wang
- Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Gabriel Menard
- Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Armen Zakarian
- Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
- Center for Integrative Biology Faculty of Sciences Geroscience Center for Brain Health and Metabolism Universidad Mayor Santiago Chile
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5
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Li Z, Ma S, Liu F, Ma R, Zhao J, Xie X, She X. Rapid construction of indole-fused 8-10 membered lactones via a tandem reaction. Org Biomol Chem 2022; 20:6314-6318. [PMID: 35852951 DOI: 10.1039/d2ob01110g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An intramolecular anaerobic Mukaiyama hydration-initiated tandem reduction/condensation/acyl migration/aromatization reaction was developed, which enabled the rapid construction of indole-fused 8-10 membered lactones starting from cyclic 2-allyl-2-(2-nitrophenyl)-1,3-diketones. A nitro substituent in the substrates acted as both an oxygen source in the Mukaiyama hydration step and a nitrogen source in a tandem indole ring construction step. Our reaction features mild conditions, atom economy, and inexpensive reagents and it can be conveniently scaled up to a gram scale in modest yields. A rational reaction mechanism was also proposed based on previous reports and control experiments.
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Affiliation(s)
- Zhen Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Shiqiang Ma
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Fuhai Liu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Ruize Ma
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Jipeng Zhao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Xingang Xie
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Xuegong She
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.
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6
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Zhong LJ, Li Y, An DL, Li JH. Heteroannulation of N-Fluoro-N-alkylsulfonamides with Terminal Alkynes via Remote C(sp3)–H Functionalization. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03853] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Long-Jin Zhong
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
| | - Yang Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - De-Lie An
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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7
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Sarkar S, Cheung KPS, Gevorgyan V. C-H functionalization reactions enabled by hydrogen atom transfer to carbon-centered radicals. Chem Sci 2020; 11:12974-12993. [PMID: 34123240 PMCID: PMC8163321 DOI: 10.1039/d0sc04881j] [Citation(s) in RCA: 142] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 11/14/2020] [Indexed: 12/12/2022] Open
Abstract
Selective functionalization of ubiquitous unactivated C-H bonds is a continuous quest for synthetic organic chemists. In addition to transition metal catalysis, which typically operates under a two-electron manifold, a recent renaissance in the radical approach relying on the hydrogen atom transfer (HAT) process has led to tremendous growth in the area. Despite several challenges, protocols proceeding via HAT are highly sought after as they allow for relatively easy activation of inert C-H bonds under mild conditions leading to a broader scope and higher functional group tolerance and sometimes complementary reactivity over methods relying on traditional transition metal catalysis. A number of methods operating via heteroatom-based HAT have been extensively reported over the past few years, while methods employing more challenging carbon analogues have been less explored. Recent developments of mild methodologies for generation of various carbon-centered radical species enabled their utilization in the HAT process, which, in turn, led to the development of remote C(sp3)-H functionalization reactions of alcohols, amines, amides and related compounds. This review covers mostly recent advances in C-H functionalization reactions involving the HAT step to carbon-centered radicals.
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Affiliation(s)
- Sumon Sarkar
- Department of Chemistry and Biochemistry, University of Texas at Dallas 800 W Campbell Rd Richardson Texas 75080 USA
| | - Kelvin Pak Shing Cheung
- Department of Chemistry and Biochemistry, University of Texas at Dallas 800 W Campbell Rd Richardson Texas 75080 USA
| | - Vladimir Gevorgyan
- Department of Chemistry and Biochemistry, University of Texas at Dallas 800 W Campbell Rd Richardson Texas 75080 USA
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9
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Liu W, Yue Z, Wang Z, Li H, Lei X. Syntheses of Skeletally Diverse Tetracyclic Isodon Diterpenoid Scaffolds Guided by Dienyne Radical Cyclization Logic. Org Lett 2020; 22:7991-7996. [PMID: 33021378 DOI: 10.1021/acs.orglett.0c02920] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
We report herein the diversity-oriented synthesis of various tetracyclic Isodon diterpenoid scaffolds guided by radical cyclization logic. Our substrate-based dienyne radical cyclization approach is distinctive from reagent-based rearrangement approaches that are generally applied in biosynthesis or previous synthetic studies. An unprecedented cyclization at C14 via 1,5-radical translocation/5-exo-trig cyclization is observed, which enriches our radical cyclization pattern. Furthermore, biological evaluations revealed that several new natural product-like compounds showed promising anticancer activities against various cancer cell lines.
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10
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Bian KJ, Li Y, Zhang KF, He Y, Wu TR, Wang CY, Wang XS. Iron-catalyzed remote functionalization of inert C(sp 3)-H bonds of alkenes via 1, n-hydrogen-atom-transfer by C-centered radical relay. Chem Sci 2020; 11:10437-10443. [PMID: 34123184 PMCID: PMC8162260 DOI: 10.1039/d0sc03987j] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
As an alternative approach to traditional C-H activation that often involved harsh conditions, and vicinal or primary C-H functionalization, radical relay offers a solution to these long-held problems. Enabled by 1,n (n = 5, 6)-hydrogen atom transfer (HAT), we use a most prevalent moiety, alkene, as the precursor to an sp3 C-centered radical to promote selective cleavage of inert C(sp3)-H bonds for the generation of azidotrifluoromethylated molecules. Mild conditions, broad scope and excellent regioselective control (>20 : 1) are observed in the reactions. Deuterium labelling studies disclose the kinetic characteristics of the transformations and verify a direct 1,n-HAT pathway. The key to this C-centered radical relay is that iron plays a dual role as a radical initiator and terminator to incorporate the azide functionality through radical oxidation via azido-ligand-transfer. The methods and the later derivatization promise expeditious synthesis of CF3-containing organic azides, γ-lactam and triazoles that are widely used in designing new fluorescent tags and functional materials.
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Affiliation(s)
- Kang-Jie Bian
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Yan Li
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Kai-Fan Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Yan He
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Tian-Rui Wu
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Cheng-Yu Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Xi-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
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11
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Bonjoch J, Diaba F. Radical Reactions in Alkaloid Synthesis: A Perspective from Carbon Radical Precursors. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000391] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Josep Bonjoch
- Laboratori de Química Orgànica Facultat de Farmàcia, IBUB Universitat de Barcelona Av. Joan XXIII s/n 08028 Barcelona Spain
| | - Faiza Diaba
- Laboratori de Química Orgànica Facultat de Farmàcia, IBUB Universitat de Barcelona Av. Joan XXIII s/n 08028 Barcelona Spain
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12
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Ma S, Long D, Chen P, Shi H, Li H, Fang R, Wang X, Xie X, She X. Synthesis of 2,3-disubstituted indoles via a tandem reaction. Org Chem Front 2020. [DOI: 10.1039/d0qo00765j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A wide array of 2,3-disubstituted indoles were accessed in modest to good yields via a tandem reduction/condensation/fragmentation/cyclization sequence. Differential fragmentation made the reaction more complicated.
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Affiliation(s)
- Shiqiang Ma
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Dan Long
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Peiqi Chen
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Hongliang Shi
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Huilin Li
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Ran Fang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xiaolei Wang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xingang Xie
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xuegong She
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
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13
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Affiliation(s)
- Eunjoon Park
- Department of ChemistryKorea University 145 Anam-ro, Seongbuk-gu Seoul 02841 Republic of Korea
| | - Cheol‐Hong Cheon
- Department of ChemistryKorea University 145 Anam-ro, Seongbuk-gu Seoul 02841 Republic of Korea
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14
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Kim R, Ferreira AJ, Beaudry CM. Total Synthesis of Leuconoxine, Melodinine E, and Mersicarpine through a Radical Translocation–Cyclization Cascade. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201907455] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ryan Kim
- Department of Chemistry Oregon State University 153 Gilbert Hall Corvallis OR 97333 USA
| | - Andrew J. Ferreira
- Department of Chemistry Oregon State University 153 Gilbert Hall Corvallis OR 97333 USA
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15
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Kim R, Ferreira AJ, Beaudry CM. Total Synthesis of Leuconoxine, Melodinine E, and Mersicarpine through a Radical Translocation–Cyclization Cascade. Angew Chem Int Ed Engl 2019; 58:12595-12598. [DOI: 10.1002/anie.201907455] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Ryan Kim
- Department of Chemistry Oregon State University 153 Gilbert Hall Corvallis OR 97333 USA
| | - Andrew J. Ferreira
- Department of Chemistry Oregon State University 153 Gilbert Hall Corvallis OR 97333 USA
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16
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Bin H, Wang K, Yang D, Yang X, Xie J, Zhou Q. Scalable Enantioselective Total Synthesis of (−)‐Goniomitine. Angew Chem Int Ed Engl 2019; 58:1174-1177. [DOI: 10.1002/anie.201812822] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Huai‐Yu Bin
- State Key Laboratory and Institute of Elemento-organic ChemistryCollege of Chemistry, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Nankai University Tianjin 300071 China
| | - Ke Wang
- State Key Laboratory and Institute of Elemento-organic ChemistryCollege of Chemistry, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Nankai University Tianjin 300071 China
| | - Dan Yang
- State Key Laboratory and Institute of Elemento-organic ChemistryCollege of Chemistry, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Nankai University Tianjin 300071 China
| | - Xiao‐Hui Yang
- State Key Laboratory and Institute of Elemento-organic ChemistryCollege of Chemistry, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Nankai University Tianjin 300071 China
| | - Jian‐Hua Xie
- State Key Laboratory and Institute of Elemento-organic ChemistryCollege of Chemistry, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Nankai University Tianjin 300071 China
| | - Qi‐Lin Zhou
- State Key Laboratory and Institute of Elemento-organic ChemistryCollege of Chemistry, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Nankai University Tianjin 300071 China
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17
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Palmieri A, Petrini M. Tryptophol and derivatives: natural occurrence and applications to the synthesis of bioactive compounds. Nat Prod Rep 2019; 36:490-530. [DOI: 10.1039/c8np00032h] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This report presents some fundamental aspects related to the natural occurrence and bioactivity of tryptophol as well as the synthesis of tryptophols and their utilization for the preparation of naturally occurring alkaloid metabolites embedding the indole system.
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Affiliation(s)
- Alessandro Palmieri
- School of Science and Technology
- Chemistry Division
- University of Camerino
- Italy
| | - Marino Petrini
- School of Science and Technology
- Chemistry Division
- University of Camerino
- Italy
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18
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Bin H, Wang K, Yang D, Yang X, Xie J, Zhou Q. Scalable Enantioselective Total Synthesis of (−)‐Goniomitine. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201812822] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Huai‐Yu Bin
- State Key Laboratory and Institute of Elemento-organic ChemistryCollege of Chemistry, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Nankai University Tianjin 300071 China
| | - Ke Wang
- State Key Laboratory and Institute of Elemento-organic ChemistryCollege of Chemistry, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Nankai University Tianjin 300071 China
| | - Dan Yang
- State Key Laboratory and Institute of Elemento-organic ChemistryCollege of Chemistry, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Nankai University Tianjin 300071 China
| | - Xiao‐Hui Yang
- State Key Laboratory and Institute of Elemento-organic ChemistryCollege of Chemistry, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Nankai University Tianjin 300071 China
| | - Jian‐Hua Xie
- State Key Laboratory and Institute of Elemento-organic ChemistryCollege of Chemistry, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Nankai University Tianjin 300071 China
| | - Qi‐Lin Zhou
- State Key Laboratory and Institute of Elemento-organic ChemistryCollege of Chemistry, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Nankai University Tianjin 300071 China
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19
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Mijangos MV, Miranda LD. A unified synthesis of topologically diverse Aspidosperma alkaloids through divergent iminium-trapping. Org Biomol Chem 2018; 16:9409-9419. [PMID: 30500039 DOI: 10.1039/c8ob02621a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aspidospermidine, vincadifformine, 1,2-dehydroaspidospermidine, goniomitine, and quebrachamine, five Aspidosperma alkaloids distributed within three structurally diverse topologies, were synthesized from a single molecular scaffold, namely indole-valerolactam 6. This common intermediate can be divergently manipulated, through the incorporation of conformational and electronic constraints that influence the chemo-selectivity of the iminium ion derived therefrom, between three different reaction paths: N(1) vs. C(3) cyclization (indole numbering) vs. over-reduction. Moreover, a catalytic carbene insertion for direct C(3)-H indole functionalization is reported for the first time in an approach to goniomitine (4), and a following tandem ester reduction/iminium generation/cyclization secured its tetracyclic system. The development of a highly diastereoselective one-pot hemi-reduction/cyclization/deprotection process to obtain a cis-pyridocarbazole directly allowed the synthesis of pentacyclic Aspidosperma alkaloids 1, 2, and 3.
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Affiliation(s)
- Marco V Mijangos
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán, Mexico City04510.
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20
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Yao X, Shan X, Zu L. Divergent Coupling of 2-Carbonyl-anilines and Diazo-cyclopentanones: Asymmetric Total Synthesis of (+)-Leucomidine A. Org Lett 2018; 20:6498-6501. [DOI: 10.1021/acs.orglett.8b02823] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaotong Yao
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
| | - Xiaosong Shan
- Department of Neurosurgery, Affiliated Hospital of Hebei University, Baoding, 071000, China
| | - Liansuo Zu
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
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21
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Stateman LM, Nakafuku KM, Nagib DA. Remote C-H Functionalization via Selective Hydrogen Atom Transfer. SYNTHESIS-STUTTGART 2018; 50:1569-1586. [PMID: 29755145 PMCID: PMC5940016 DOI: 10.1055/s-0036-1591930] [Citation(s) in RCA: 289] [Impact Index Per Article: 48.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The selective functionalization of remote C-H bonds via intramolecular hydrogen atom transfer (HAT) is transformative for organic synthesis. This radical-mediated strategy provides access to novel reactivity that is complementary to closed-shell pathways. As modern methods for mild generation of radicals are continually developed, inherent selectivity paradigms of HAT mechanisms offer unparalleled opportunities for developing new strategies for C-H functionalization. This review outlines the history, recent advances, and mechanistic underpinnings of intramolecular HAT as a guide to addressing ongoing challenges in this arena.
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Affiliation(s)
- Leah M Stateman
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio, 43210, USA
| | - Kohki M Nakafuku
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio, 43210, USA
| | - David A Nagib
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio, 43210, USA
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22
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Pritchett BP, Kikuchi J, Numajiri Y, Stoltz BM. A FISCHER INDOLIZATION STRATEGY TOWARD THE TOTAL SYNTHESIS OF (-)-GONIOMITINE. HETEROCYCLES 2017; 95:1245-1253. [PMID: 28706345 PMCID: PMC5502790 DOI: 10.3987/com-16-s(s)80] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A Fischer indolization strategy toward the core of (-)-goniomitine is reported. Initial investigations into the Pd-catalyzed asymmetric allylic alkylation of dihydropyrido[1,2-a]indolone (DHPI) substrates are also discussed.
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Affiliation(s)
- Beau P Pritchett
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Blvd. MC101-20, Pasadena, CA 91125 (USA)
| | - Jun Kikuchi
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Blvd. MC101-20, Pasadena, CA 91125 (USA)
| | - Yoshitaka Numajiri
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Blvd. MC101-20, Pasadena, CA 91125 (USA)
| | - Brian M Stoltz
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Blvd. MC101-20, Pasadena, CA 91125 (USA)
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23
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Li H, Cheng P, Jiang L, Yang JL, Zu L. Bio-Inspired Fragmentations: Rapid Assembly of Indolones, 2-Quinolinones, and (−)-Goniomitine. Angew Chem Int Ed Engl 2017; 56:2754-2757. [PMID: 28128515 DOI: 10.1002/anie.201611830] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 01/15/2017] [Indexed: 01/01/2023]
Affiliation(s)
- Haokun Li
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Peng Cheng
- Collaborative Innovation Center for Biotherapy; West China Medical School; Sichuan University; Chengdu 610041 China
| | - Long Jiang
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Jin-Liang Yang
- Collaborative Innovation Center for Biotherapy; West China Medical School; Sichuan University; Chengdu 610041 China
| | - Liansuo Zu
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
- Collaborative Innovation Center for Biotherapy; West China Medical School; Sichuan University; Chengdu 610041 China
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24
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Li H, Cheng P, Jiang L, Yang JL, Zu L. Bio-Inspired Fragmentations: Rapid Assembly of Indolones, 2-Quinolinones, and (−)-Goniomitine. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611830] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Haokun Li
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Peng Cheng
- Collaborative Innovation Center for Biotherapy; West China Medical School; Sichuan University; Chengdu 610041 China
| | - Long Jiang
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Jin-Liang Yang
- Collaborative Innovation Center for Biotherapy; West China Medical School; Sichuan University; Chengdu 610041 China
| | - Liansuo Zu
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
- Collaborative Innovation Center for Biotherapy; West China Medical School; Sichuan University; Chengdu 610041 China
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25
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Pritchett BP, Kikuchi J, Numajiri Y, Stoltz BM. Enantioselective Pd-Catalyzed Allylic Alkylation Reactions of Dihydropyrido[1,2-a
]indolone Substrates: Efficient Syntheses of (−)-Goniomitine, (+)-Aspidospermidine, and (−)-Quebrachamine. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608138] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Beau P. Pritchett
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering; Division of Chemistry and Chemical Engineering; California Institute of Technology; 1200 E. California Blvd. MC 101-20 Pasadena CA 91125 USA
| | - Jun Kikuchi
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering; Division of Chemistry and Chemical Engineering; California Institute of Technology; 1200 E. California Blvd. MC 101-20 Pasadena CA 91125 USA
| | - Yoshitaka Numajiri
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering; Division of Chemistry and Chemical Engineering; California Institute of Technology; 1200 E. California Blvd. MC 101-20 Pasadena CA 91125 USA
| | - Brian M. Stoltz
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering; Division of Chemistry and Chemical Engineering; California Institute of Technology; 1200 E. California Blvd. MC 101-20 Pasadena CA 91125 USA
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26
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Pritchett BP, Kikuchi J, Numajiri Y, Stoltz BM. Enantioselective Pd-Catalyzed Allylic Alkylation Reactions of Dihydropyrido[1,2-a]indolone Substrates: Efficient Syntheses of (-)-Goniomitine, (+)-Aspidospermidine, and (-)-Quebrachamine. Angew Chem Int Ed Engl 2016; 55:13529-13532. [PMID: 27666731 DOI: 10.1002/anie.201608138] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 09/07/2016] [Indexed: 01/06/2023]
Abstract
The successful application of dihydropyrido[1,2-a]indolone (DHPI) substrates in Pd-catalyzed asymmetric allylic alkylation chemistry facilitates rapid access to multiple alkaloid frameworks in an enantioselective fashion. Strategic bromination at the indole C3 position greatly improved the allylic alkylation chemistry and enabled a highly efficient Negishi cross-coupling downstream. The first catalytic enantioselective total synthesis of (-)-goniomitine, along with divergent formal syntheses of (+)-aspidospermidine and (-)-quebrachamine, are reported herein.
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Affiliation(s)
- Beau P Pritchett
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd. MC 101-20, Pasadena, CA, 91125, USA
| | - Jun Kikuchi
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd. MC 101-20, Pasadena, CA, 91125, USA
| | - Yoshitaka Numajiri
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd. MC 101-20, Pasadena, CA, 91125, USA
| | - Brian M Stoltz
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd. MC 101-20, Pasadena, CA, 91125, USA.
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27
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Hagiwara K, Tabuchi T, Urabe D, Inoue M. Expeditious synthesis of the fused hexacycle of puberuline C via a radical-based cyclization/translocation/cyclization process. Chem Sci 2016; 7:4372-4378. [PMID: 30155084 PMCID: PMC6014077 DOI: 10.1039/c6sc00671j] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Accepted: 03/11/2016] [Indexed: 11/21/2022] Open
Abstract
The fused 6/7/5/6/6/6-hexacyclic ring system of puberuline C was assembled in 18 steps from 2-(ethoxycarbonyl)cyclohexanone. After the azabicyclo[3.3.1]nonane derivative was sequentially coupled with propargyl magnesium bromide, 2-iodo cyclopentenone and allyl bromide, the pentacycle was constructed in a single step via a radical-based cyclization/translocation/cyclization process. The C11-bridgehead radical generated via C-Br homolysis participated in a 7-endo cyclization, and the 1,5-hydrogen translocation of the resultant radical was followed by transannular 6-exo cyclization to simultaneously realize the construction of the two rings and the introduction of the five contiguous stereocenters. The last 6-exo cyclization was induced by the Mukaiyama aldol reaction, and the C16-ketone was stereoselectively reduced by the action of SmI2/t-BuOH, leading for the first time to the synthesis of the entire hexacycle of puberuline C.
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Affiliation(s)
- Koichi Hagiwara
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan .
| | - Toshiki Tabuchi
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan .
| | - Daisuke Urabe
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan .
| | - Masayuki Inoue
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan .
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28
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Dawande SG, Lad BS, Prajapati S, Katukojvala S. Rhodium-catalyzed pyridannulation of indoles with diazoenals: a direct approach to pyrido[1,2-a]indoles. Org Biomol Chem 2016; 14:5569-73. [DOI: 10.1039/c6ob00360e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A new rhodium-catalyzed [4 + 2]-pyridannulation of 3-substituted indoles with diazoenals resulted in the biologically important pyrido[1,2-a]indoles.
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Affiliation(s)
- Sudam Ganpat Dawande
- Department of Chemistry
- Indian Institute of Science Education & Research
- Bhopal
- India
| | - Bapurao Sudam Lad
- Department of Chemistry
- Indian Institute of Science Education & Research
- Bhopal
- India
| | - Sunitkumar Prajapati
- Department of Chemistry
- Indian Institute of Science Education & Research
- Bhopal
- India
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