1
|
Osipov DV, Demidov MR, Artemenko AA, Rashchepkina DA, Krasnikov PE, Osyanin VA. Cascade Synthesis of Pyrrolo[1,2- a]quinolines and Pyrrolo[2,1- a]isoquinolines via Formal [3 + 2]-Cycloaddition of Push-Pull Nitro Heterocycles with Carbonyl-Stabilized Quinolinium/Isoquinolinium Ylides. J Org Chem 2024; 89:9816-9829. [PMID: 38917339 DOI: 10.1021/acs.joc.4c00455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
Various substituted pyrrolo[1,2-a]quinolines and pyrrolo[2,1-a]isoquinolines were synthesized in good to high yields by the Et3N-mediated reaction of push-pull 3-nitrobenzofurans or 1-Ts-/1-Ms-3-nitroindoles and precursors of carbonyl-stabilized quinolinium and isoquinolinium ylides as 1,3-dipole equivalents. These transformations proceed in a one-pot manner starting with the formal [3 + 2]-cycloaddition stage, which is accompanied by double dearomatization of both quinoline/isoquinoline and benzofuran/indole moieties, followed by ring-opening of cyclic intermediate formed and nitrous acid elimination sequence. [3 + 2]-Cycloadducts were isolated as the final products in cases of impossibility or difficulty of their enolization. The present protocol was successfully extended to 3-nitro-4H-chromene derivatives as push-pull dipolarophile component. Finally, using the method of competing reactions, the reactivity of the starting compounds was compared with each other.
Collapse
Affiliation(s)
- Dmitry V Osipov
- Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russian Federation
| | - Maxim R Demidov
- Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russian Federation
| | - Alina A Artemenko
- Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russian Federation
| | - Daria A Rashchepkina
- Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russian Federation
| | - Pavel E Krasnikov
- Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russian Federation
| | - Vitaly A Osyanin
- Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russian Federation
| |
Collapse
|
2
|
Sakai K, Soshima T, Hirose Y, Ishibashi F, Hirao S. Design, synthesis, and biological evaluation of novel benzo[6,7]indolo[3,4-c]isoquinolines as anticancer agents with topoisomerase I inhibition. Bioorg Med Chem Lett 2024; 104:129710. [PMID: 38518997 DOI: 10.1016/j.bmcl.2024.129710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 03/19/2024] [Accepted: 03/19/2024] [Indexed: 03/24/2024]
Abstract
A novel series of benzo[6,7]indolo[3,4-c]isoquinolines 3a-3f was designed by scaffold hopping of topoisomerase I inhibitor benzo[g][1]benzopyrano[4,3-b]indol-6(13H)-ones (BBPIs), which were developed by structural modification of the natural marine product lamellarin. The unconventional pentacycle was constructed by Bischler-Napieralski-type condensation of amide 11 and subsequent intramolecular Heck reaction. In vitro anticancer activity of the synthesized benzo[6,7]indolo[3,4-c]isoquinolines was evaluated on a panel of 39 human cancer cell lines (JFCR39). Among the compounds tested, N-(3-morpholinopropyl) derivative 3e showed the most potent antiproliferative activity, with a mean GI50 value of 39 nM. This compound inhibited topoisomerase I activity by stabilizing the enzyme-DNA complex.
Collapse
Affiliation(s)
- Kie Sakai
- Faculty of Fisheries, Nagasaki University, Nagasaki, Japan
| | - Taisei Soshima
- Faculty of Fisheries, Nagasaki University, Nagasaki, Japan
| | - Yuki Hirose
- Faculty of Fisheries, Nagasaki University, Nagasaki, Japan
| | - Fumito Ishibashi
- Faculty of Fisheries, Nagasaki University, Nagasaki, Japan; Graduate School of Fisheries and Environmental Sciences, Nagasaki University, Nagasaki, Japan
| | - Shotaro Hirao
- Faculty of Science and Technology, Oita University, Dannoharu, Japan.
| |
Collapse
|
3
|
Wei M, Chen J, Song Y, Monserrat JP, Zhang Y, Shen L. Progress on synthesis and structure-activity relationships of lamellarins over the past decade. Eur J Med Chem 2024; 269:116294. [PMID: 38508119 DOI: 10.1016/j.ejmech.2024.116294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 02/28/2024] [Accepted: 02/28/2024] [Indexed: 03/22/2024]
Abstract
Lamellarins are polyaromatic alkaloids isolated from marine organisms, including mollusks, tunicates, and sponges. Currently, over 60 structurally distinct natural lamellarins have been reported, and most of them exhibit promising biological activities, such as topoisomerase inhibition, mitochondrial function inhibition, multidrug resistance reversing, and anti-HIV activity. There has also been a significant progress on the synthetic study of lamellarins which has been regularly updated by numerous medicinal chemists as well. This review provides a detailed summary of the synthesis, pharmacology, and structural modification of lamellarins over the past decades.
Collapse
Affiliation(s)
- Mingze Wei
- School of Pharmaceutical Science, Zhejiang Chinese Medical University, 310061, Hangzhou, China
| | - Jing Chen
- School of Pharmaceutical Science, Zhejiang Chinese Medical University, 310061, Hangzhou, China
| | - Yuliang Song
- School of Pharmaceutical Science, Zhejiang Chinese Medical University, 310061, Hangzhou, China
| | | | - Yongmin Zhang
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, UMR 8232, 4 place Jussieu, 75005 Paris, France
| | - Li Shen
- School of Pharmaceutical Science, Zhejiang Chinese Medical University, 310061, Hangzhou, China.
| |
Collapse
|
4
|
Das B, Dahiya A, Chakraborty N, Patel BK. Synthesis of Chromenopyrroles (Azacoumestans) from Functionalized Enones and Alkyl Isocyanoacetates. Org Lett 2023. [PMID: 37410976 DOI: 10.1021/acs.orglett.3c01655] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
Elegant synthetic strategies for chromenopyrroles (azacoumestans) have been devised via cycloaddition of 2-hydroxychalcone/cyclic enones and alkyl isocyanoacetate, followed by lactonization. Herein, ethyl isocyanoacetate acts as a C-NH-C-C═O synthon contrary to its hitherto applications as a C-NH-C synthon. Subsequently, pentacyclic-fused pyrroles were also constructed from the o-iodo benzoyl chromenopyrroles using the Pd(II) catalyst.
Collapse
Affiliation(s)
- Bubul Das
- Department of Chemistry, Indian Institute of Technology Guwahati North Guwahati 781039, India
| | - Anjali Dahiya
- Department of Chemistry, Indian Institute of Technology Guwahati North Guwahati 781039, India
| | - Nikita Chakraborty
- Department of Chemistry, Indian Institute of Technology Guwahati North Guwahati 781039, India
| | - Bhisma K Patel
- Department of Chemistry, Indian Institute of Technology Guwahati North Guwahati 781039, India
| |
Collapse
|
5
|
Dzedulionytė K, Fuxreiter N, Schreiber-Brynzak E, Žukauskaitė A, Šačkus A, Pichler V, Arbačiauskienė E. Pyrazole-based lamellarin O analogues: synthesis, biological evaluation and structure-activity relationships. RSC Adv 2023; 13:7897-7912. [PMID: 36909769 PMCID: PMC9999251 DOI: 10.1039/d3ra00972f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 03/01/2023] [Indexed: 03/12/2023] Open
Abstract
A library of pyrazole-based lamellarin O analogues was synthesized from easily accessible 3(5)-aryl-1H-pyrazole-5(3)-carboxylates which were subsequently modified by bromination, N-alkylation and Pd-catalysed Suzuki cross-coupling reactions. Synthesized ethyl and methyl 3,4-diaryl-1-(2-aryl-2-oxoethyl)-1H-pyrazole-5-carboxylates were evaluated for their physicochemical property profiles and in vitro cytotoxicity against three human colorectal cancer cell lines HCT116, HT29, and SW480. The most active compounds inhibited cell proliferation in a low micromolar range. Selected ethyl 3,4-diaryl-1-(2-aryl-2-oxoethyl)-1H-pyrazole-5-carboxylates were further investigated for their mode of action. Results of combined viability staining via Calcein AM/Hoechst/PI and fluorescence-activated cell sorting data indicated that cell death was triggered in a non-necrotic manner mediated by mainly G2/M-phase arrest.
Collapse
Affiliation(s)
- Karolina Dzedulionytė
- Department of Organic Chemistry, Faculty of Chemical Technology, Kaunas University of Technology Radvilėnų pl. 19 LT-50254 Kaunas Lithuania
| | - Nina Fuxreiter
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna Althanstraße 14 1090 Vienna Austria
| | - Ekaterina Schreiber-Brynzak
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna Althanstraße 14 1090 Vienna Austria
| | - Asta Žukauskaitė
- Department of Chemical Biology, Faculty of Science, Palacký University Šlechtitelů 27 CZ-78371 Olomouc Czech Republic
| | - Algirdas Šačkus
- Department of Organic Chemistry, Faculty of Chemical Technology, Kaunas University of Technology Radvilėnų pl. 19 LT-50254 Kaunas Lithuania .,Institute of Synthetic Chemistry, Faculty of Chemical Technology, Kaunas University of Technology K. Baršausko g. 59 LT-51423 Kaunas Lithuania
| | - Verena Pichler
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Chemistry, Faculty of Life Sciences, University of Vienna Althanstraße 14 1090 Vienna Austria
| | - Eglė Arbačiauskienė
- Department of Organic Chemistry, Faculty of Chemical Technology, Kaunas University of Technology Radvilėnų pl. 19 LT-50254 Kaunas Lithuania
| |
Collapse
|
6
|
Evolution of BODIPY/aza-BODIPY dyes for organic photoredox/energy transfer catalysis. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
7
|
Patra P, Manna S, Patra S, Samanta K, Roy D. A Brief Review on the Synthesis of Pyrrolo[2,3- c]coumarins, including Lamellarin and Ningalin Scaffolds. ORG PREP PROCED INT 2022. [DOI: 10.1080/00304948.2022.2116909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Prasanta Patra
- Department of Chemistry, Jhargram Raj College, Jhargram, India
| | - Sibasish Manna
- Department of Chemistry, Jhargram Raj College, Jhargram, India
| | - Susanta Patra
- Department of Chemistry, IIT(ISM) Dhanbad, Dhanbad, India
| | - Khokan Samanta
- Department of Chemistry, Haldia Government College, Haldia, Purba Medinipur, India
| | - Debnarayan Roy
- Department of Zoology, Jhargram Raj College, Jhargram, India
| |
Collapse
|
8
|
Khorsandi Z, Afshinpour M, Molaei F, Askandar RH, Keshavarzipour F, Abbasi M, Sadeghi-Aliabadi H. Design and synthesis of novel phe-phe hydroxyethylene derivatives as potential coronavirus main protease inhibitors. J Biomol Struct Dyn 2022; 40:7940-7948. [PMID: 33784944 PMCID: PMC8022343 DOI: 10.1080/07391102.2021.1905549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 03/15/2021] [Indexed: 12/03/2022]
Abstract
In response to the current pandemic caused by the novel SARS-CoV-2, we design new compounds based on Lopinavir structure as an FDA-approved antiviral agent which is currently under more evaluation in clinical trials for COVID-19 patients. This is the first example of the preparation of Lopinavir isosteres from the main core of Lopinavir conducted to various heterocyclic fragments. It is proposed that main protease inhibitors play an important role in the cycle life of coronavirus. Thus, the protease inhibition effect of synthesized compounds was studied by molecular docking method. All of these 10 molecules, showing a good docking score compared. Molecular dynamics (MD) simulations also confirmed the stability of the best-designed compound in Mpro active site.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Zahra Khorsandi
- Department of Chemistry, Isfahan University of Technology, Isfahan, Iran
| | - Maral Afshinpour
- Bioinformatics Lab., Department of Biology, School of Sciences, Razi University, Kermanshah, Iran
| | - Fatemeh Molaei
- Department of Anaesthesiology, Facility of Paramedical, Jahrom University of medical science, Jahrom, Iran
| | | | - Fariba Keshavarzipour
- Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maryam Abbasi
- Department of Medicinal Chemistry, Faculty of Pharmacy, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Hojjat Sadeghi-Aliabadi
- Department of Medicinal Chemistry, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
| |
Collapse
|
9
|
Patra P. A short review on the synthesis of pyrrolo[3,4- c]coumarins an isolamellarin-B scaffolds. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2119413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Prasanta Patra
- Department of Chemistry, Jhargram Raj College, Jhargram, India
| |
Collapse
|
10
|
Das D, Das AR. Access to π-Extended Heterocycles Containing Pyrrolo-Coumarin Cores Involving -COCH 3 as a Traceless Directing Group and Materializing Two Successive sp 2C-H/sp 3N-H and sp 2C-H/sp 2N-H Activations. J Org Chem 2022; 87:11443-11456. [PMID: 36000720 DOI: 10.1021/acs.joc.2c00958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient protocol has been developed for the preparation of π-extended N-heterocycles involving a Rh(III)-catalyzed C-H activation reaction starting from 3-acetamidocoumarins and internal alkynes. The isolation of the intermediate pyrrolo-coumarin suggests that the -COCH3 group in acetamidocoumarins performs the role of a traceless directing group. Besides, the use of commercially available [Cp*RhCl2]2 adds more importance as no additional modification of the catalyst is required. A two-step protocol bearing intermediate pyrrolo-coumarin can be further functionalized to highly decorated heterocyclic moieties materializing sp2 C-H and sp2 N-H coupling. Moreover, one of the pyrrolo-coumarin compounds (3da) is capable of differentiating between Cr(III) and Cr(VI) ions as revealed via fluorescence spectroscopy. In addition, intermediate pyrrolo-coumarin is further functionalized to spirocyclic N-heterocycles.
Collapse
Affiliation(s)
- Dwaipayan Das
- Department of Chemistry, University of Calcutta, Kolkata 700009, India
| | - Asish R Das
- Department of Chemistry, University of Calcutta, Kolkata 700009, India
| |
Collapse
|
11
|
Li J, Jiang LM, Cheng F, Zhou YJ, Duan DS, Zhu DY, Zhang K, Xiong Z, Wang SH. Total Synthesis of Sinopyrine B. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
12
|
Silyanova EA, Samet AV, Semenov VV. A Two-Step Approach to a Hexacyclic Lamellarin Core via 1,3-Dipolar Cycloaddition of Isoquinolinium Ylides to Nitrostilbenes. J Org Chem 2022; 87:6444-6453. [PMID: 35467869 DOI: 10.1021/acs.joc.2c00312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The 1,3-dipolar cycloaddition reaction of isoquinolinium ylides to nitrostilbenes provides an approach to 1,2-diarylpyrrolo[2,1-a]isoquinolinium-3-carboxylates and then to a complete hexacyclic lamellarin core.
Collapse
Affiliation(s)
- E A Silyanova
- N. D. Zelinsky Institute of Organic Chemistry RAS, 47 Leninsky Prospect, 119991 Moscow, Russian Federation
| | - A V Samet
- N. D. Zelinsky Institute of Organic Chemistry RAS, 47 Leninsky Prospect, 119991 Moscow, Russian Federation
| | - V V Semenov
- N. D. Zelinsky Institute of Organic Chemistry RAS, 47 Leninsky Prospect, 119991 Moscow, Russian Federation
| |
Collapse
|
13
|
Jhang J, Manjappa KB, Yang D. Synthesis of Naphthoquinone‐ and Pyrrolo[2,1‐
a
]isoquinoline‐Fused Heterocycles and Tridemethoxy Lamellarin D. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jia‐Wei Jhang
- Department of Chemistry Tunghai University No. 1727, Sec. 4, Taiwan Boulevard, Xitun District Taichung Taiwan
| | - Kiran B. Manjappa
- Graduate Program for Biomedical and Materials Science Tunghai University No. 1727, Sec. 4, Taiwan Boulevard, Xitun District Taichung Taiwan
| | - Ding‐Yah Yang
- Department of Chemistry Tunghai University No. 1727, Sec. 4, Taiwan Boulevard, Xitun District Taichung Taiwan
- Graduate Program for Biomedical and Materials Science Tunghai University No. 1727, Sec. 4, Taiwan Boulevard, Xitun District Taichung Taiwan
| |
Collapse
|
14
|
Manjappa KB, Jhang J, Lakshmi KCS, Yang D. Four‐Component Construction of Coumarin‐Fused Pyrrolo[2,1‐
a
]isoquinoline: Expedient Synthesis of Lamellarins and Their Regioselective Demethylation. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100659] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kiran B. Manjappa
- Graduate Program for Biomedical and Materials Science Tunghai University No. 1727, Sec. 4, Taiwan Boulevard, Xitun District 407224 Taichung Taiwan
| | - Jia‐Wei Jhang
- Department of Chemistry Tunghai University No. 1727, Sec. 4, Taiwan Boulevard, Xitun District Taichung Taiwan
| | - K. C. Seetha Lakshmi
- Department of Chemistry Tunghai University No. 1727, Sec. 4, Taiwan Boulevard, Xitun District Taichung Taiwan
| | - Ding‐Yah Yang
- Graduate Program for Biomedical and Materials Science Tunghai University No. 1727, Sec. 4, Taiwan Boulevard, Xitun District 407224 Taichung Taiwan
- Department of Chemistry Tunghai University No. 1727, Sec. 4, Taiwan Boulevard, Xitun District Taichung Taiwan
| |
Collapse
|
15
|
Klumthong K, Chalermsub P, Sopha P, Ruchirawat S, Ploypradith P. An Expeditious Modular Hybrid Strategy for the Diversity-Oriented Synthesis of Lamellarins/Azalamellarins with Anticancer Cytotoxicity. J Org Chem 2021; 86:14883-14902. [PMID: 34436897 DOI: 10.1021/acs.joc.1c01639] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A modular hybrid strategy has been developed for the diversity-oriented synthesis of lamellarins/azalamellarins. The common pentacyclic pyrrolodihydroisoquinoline lactone/lactam core was formed via the Michael addition/ring closure (Mi-RC) and the copper(I) thiophene-2-carboxylate (CuTC)-catalyzed C-O/C-N Ullmann coupling. Subsequent direct functionalization at C1, DDQ-mediated C5═C6 oxidation, and global deprotection of all benzyl-type O- and N-protecting groups furnished the desired lamellarins/azalamellarins. The late-stage functionalization at C1 provided a handle to accommodate a wider scope of functional groups as they need to tolerate only the DDQ oxidation and global deprotection. Moreover, with the C1-H pyrrole as the late-stage common intermediate, it was also possible to divergently exploit not only its nucleophilic nature to react with some electrophilic species but also some transition-metal-catalyzed cross-coupling reactions (via the intermediacy of the C1-iodopyrrole) to incorporate diversity at this position. Overall, this strategy simplifies the preparation of lamellarins/azalamellarins; including the Mi-RC, these C1-structurally diverse analogues could be prepared efficiently in 6-7 steps from the easily accessed 1-acetoxymethyldihydroisoquinoline and β-nitrocinnamate. Some selected azalamellarins were evaluated for their inhibitory effect against HeLa cervical cancer cells. An acute induction of intrinsic apoptosis was detected and may lead to growth suppression of or cytotoxicity against cancer cells.
Collapse
Affiliation(s)
- Kanawut Klumthong
- Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 906 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand
| | - Papornchanok Chalermsub
- Applied Biological Sciences, Environmental Health, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 906 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand
| | - Pattarawut Sopha
- Applied Biological Sciences, Environmental Health, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 906 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand
| | - Somsak Ruchirawat
- Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 906 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand.,Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand.,Center of Excellence on Environmental Health and Toxicology, Commission on Higher Education, Ministry of Education, Bangkok 10400, Thailand
| | - Poonsakdi Ploypradith
- Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 906 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand.,Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand.,Center of Excellence on Environmental Health and Toxicology, Commission on Higher Education, Ministry of Education, Bangkok 10400, Thailand
| |
Collapse
|
16
|
Ivan BC, Dumitrascu F, Anghel AI, Ancuceanu RV, Shova S, Dumitrescu D, Draghici C, Olaru OT, Nitulescu GM, Dinu M, Barbuceanu SF. Synthesis and Toxicity Evaluation of New Pyrroles Obtained by the Reaction of Activated Alkynes with 1-Methyl-3-(cyanomethyl)benzimidazolium Bromide. Molecules 2021; 26:6435. [PMID: 34770844 PMCID: PMC8587665 DOI: 10.3390/molecules26216435] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 11/16/2022] Open
Abstract
A series of new pyrrole derivatives were designed as chemical analogs of the 1,4-dihydropyridines drugs in order to develop future new calcium channel blockers. The new tri- and tetra-substituted N-arylpyrroles were synthesized by the one-pot reaction of 1-methyl-3-cyanomethyl benzimidazolium bromide with substituted alkynes having at least one electron-withdrawing substituent, in 1,2-epoxybutane, acting both as the solvent and reagent to generate the corresponding benzimidazolium N3-ylide. The structural characterization of the new substituted pyrroles was based on IR, NMR spectroscopy as well as on single crystal X-ray analysis. The toxicity of the new compounds was assessed on the plant cell using Triticum aestivum L. species and on the animal cell using Artemia franciscana Kellogg and Daphnia magna Straus crustaceans. The compounds showed minimal phytotoxicity on Triticum rootlets and virtually no acute toxicity on Artemia nauplii, while on Daphnia magna, it induced moderate to high toxicity, similar to nifedipine. Our research indicates that the newly synthetized pyrrole derivatives are promising molecules with biological activity and low acute toxicity.
Collapse
Affiliation(s)
- Beatrice-Cristina Ivan
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (B.-C.I.); (A.I.A.); (R.V.A.); (G.M.N.); (M.D.); (S.-F.B.)
| | - Florea Dumitrascu
- “Costin D. Nenitescu” Center of Organic Chemistry, Romanian Academy, 202B Splaiul Independenței, 060023 Bucharest, Romania;
| | - Adriana Iuliana Anghel
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (B.-C.I.); (A.I.A.); (R.V.A.); (G.M.N.); (M.D.); (S.-F.B.)
| | - Robert Viorel Ancuceanu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (B.-C.I.); (A.I.A.); (R.V.A.); (G.M.N.); (M.D.); (S.-F.B.)
| | - Sergiu Shova
- Laboratory of Inorganic Polymers, “Petru Poni” Institute of Macromolecular Chemistry, 41A Aleea Grigore Ghica Voda, 700487 Iasi, Romania;
| | - Denisa Dumitrescu
- Faculty of Pharmacy, “Ovidius” University Constanta, Cpt. Av. Al. Serbanescu Street, 900470 Constanta, Romania;
| | - Constantin Draghici
- “Costin D. Nenitescu” Center of Organic Chemistry, Romanian Academy, 202B Splaiul Independenței, 060023 Bucharest, Romania;
| | - Octavian Tudorel Olaru
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (B.-C.I.); (A.I.A.); (R.V.A.); (G.M.N.); (M.D.); (S.-F.B.)
| | - George Mihai Nitulescu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (B.-C.I.); (A.I.A.); (R.V.A.); (G.M.N.); (M.D.); (S.-F.B.)
| | - Mihaela Dinu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (B.-C.I.); (A.I.A.); (R.V.A.); (G.M.N.); (M.D.); (S.-F.B.)
| | - Stefania-Felicia Barbuceanu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (B.-C.I.); (A.I.A.); (R.V.A.); (G.M.N.); (M.D.); (S.-F.B.)
| |
Collapse
|
17
|
Mari G, Corrieri M, De Crescentini L, Favi G, Santeusanio S, Mantellini F. FeCl
3
‐Catalyzed Formal [3+2] Cyclodimerization of 4‐Carbonyl‐1,2‐diaza‐1,3‐dienes. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101046] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Giacomo Mari
- Department of Biomolecular Sciences Section of Chemistry and Pharmaceutical Technologies University of Urbino “Carlo Bo” Via I Maggetti 24 61029 Urbino (PU) Italy
| | - Matteo Corrieri
- Department of Biomolecular Sciences Section of Chemistry and Pharmaceutical Technologies University of Urbino “Carlo Bo” Via I Maggetti 24 61029 Urbino (PU) Italy
| | - Lucia De Crescentini
- Department of Biomolecular Sciences Section of Chemistry and Pharmaceutical Technologies University of Urbino “Carlo Bo” Via I Maggetti 24 61029 Urbino (PU) Italy
| | - Gianfranco Favi
- Department of Biomolecular Sciences Section of Chemistry and Pharmaceutical Technologies University of Urbino “Carlo Bo” Via I Maggetti 24 61029 Urbino (PU) Italy
| | - Stefania Santeusanio
- Department of Biomolecular Sciences Section of Chemistry and Pharmaceutical Technologies University of Urbino “Carlo Bo” Via I Maggetti 24 61029 Urbino (PU) Italy
| | - Fabio Mantellini
- Department of Biomolecular Sciences Section of Chemistry and Pharmaceutical Technologies University of Urbino “Carlo Bo” Via I Maggetti 24 61029 Urbino (PU) Italy
| |
Collapse
|
18
|
Morii K, Yasuda Y, Morikawa D, Mori A, Okano K. Total Synthesis of Lamellarins G, J, L, and Z Using One-Pot Halogen Dance/Negishi Coupling. J Org Chem 2021; 86:13388-13401. [PMID: 34546054 DOI: 10.1021/acs.joc.1c01505] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A bottom-up synthesis of lamellarins G, J, L, and Z was achieved via one-pot halogen dance/Negishi coupling of a lithiated dibromopyrrole derivative. The easily accessible dibromopyrrole bearing an ester moiety underwent halogen dance smoothly at -78 °C within 10 min. The resultant α-pyrrolyllithium was transmetalated to the corresponding organozinc species, which was then coupled with an aryl iodide in the presence of catalytic palladium to provide the fully substituted pyrrole. Subsequent halogen-lithium exchange was performed to incorporate a boronate group exclusively at the β position proximal to the ester moiety. This synthetic intermediate allowed stepwise diarylation for the total synthesis of lamellarins G, J, L, and Z.
Collapse
Affiliation(s)
- Kazuki Morii
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Yuto Yasuda
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Daiki Morikawa
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Atsunori Mori
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan.,Research Center for Membrane and Film Technology, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Kentaro Okano
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| |
Collapse
|
19
|
Rusanov DА, Samet AV, Rusak VV, Semenov VV. Synthesis of functionalized 1-methylchromeno[3,4-b]pyrrol-4(3H)-ones via the Barton–Zard reaction starting from pseudonitrosites. Chem Heterocycl Compd (N Y) 2021. [DOI: 10.1007/s10593-021-03004-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
20
|
Seipp K, Geske L, Opatz T. Marine Pyrrole Alkaloids. Mar Drugs 2021; 19:514. [PMID: 34564176 PMCID: PMC8471394 DOI: 10.3390/md19090514] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/05/2021] [Accepted: 09/07/2021] [Indexed: 12/13/2022] Open
Abstract
Nitrogen heterocycles are essential parts of the chemical machinery of life and often reveal intriguing structures. They are not only widespread in terrestrial habitats but can also frequently be found as natural products in the marine environment. This review highlights the important class of marine pyrrole alkaloids, well-known for their diverse biological activities. A broad overview of the marine pyrrole alkaloids with a focus on their isolation, biological activities, chemical synthesis, and derivatization covering the decade from 2010 to 2020 is provided. With relevant structural subclasses categorized, this review shall provide a clear and timely synopsis of this area.
Collapse
Affiliation(s)
| | | | - Till Opatz
- Department of Chemistry, Organic Chemistry Section, Johannes Gutenberg University, Duesbergweg 10–14, 55128 Mainz, Germany; (K.S.); (L.G.)
| |
Collapse
|
21
|
Abstract
Titanium is an attractive metal for catalytic reaction development: it is earth-abundant, inexpensive, and generally nontoxic. However-like most early transition metals-catalytic redox reactions with Ti are difficult because of the stability of the high-valent TiIV state. Understanding the fundamental mechanisms behind Ti redox processes is key for making progress toward potential catalytic applications. This Account details recent progress in Ti-catalyzed (and -mediated) oxidative amination reactions that proceed through formally TiII/TiIV catalytic cycles.This class of reactions is built on our initial discovery of Ti-catalyzed [2 + 2 + 1] pyrrole synthesis from alkynes and azobenzene, where detailed mechanistic studies have revealed important factors that allow for catalytic turnover despite the inherent difficulty of Ti redox. Two important conclusions from mechanistic studies are that (1) low-valent Ti intermediates in catalysis can be stabilized through coordination of π-acceptor substrates or products, where they can act as "redox-noninnocent" ligands through metal-to-ligand π back-donation, and (2) reductive elimination processes with Ti proceed through π-type electrocyclic (or pericyclic) reaction mechanisms rather than direct σ-bond coupling.The key reactive species in Ti-catalyzed oxidative amination reactions are Ti imidos (Ti≡NR), which can be generated from either aryl diazenes (RN═NR) or organic azides (RN3). These Ti imidos can then undergo [2 + 2] cycloadditions with alkynes, resulting in intermediates that can be coupled to an array of other unsaturated functional groups, including alkynes, alkenes, nitriles, and nitrosos. This basic reactivity pattern has been extended into a broad range of catalytic and stoichiometric oxidative multicomponent coupling reactions of alkynes and other reactive small molecules, leading to multicomponent syntheses of various heterocycles and aminated building blocks.For example, catalytic oxidative coupling of Ti imidos with two different alkynes leads to pyrroles, while stoichiometric oxidative coupling with alkynes and nitriles leads to pyrazoles. These heterocycle syntheses often yield substitution patterns that are complementary to those of classical condensation routes and provide access to new electron-rich, highly substituted heteroaromatic scaffolds. Furthermore, catalytic oxidative alkyne carboamination reactions can be accomplished via reaction of Ti imidos with alkynes and alkenes, yielding α,β-unsaturated imine or cyclopropylimine building blocks. New catalytic and stoichiometric oxidative amination methods such as alkyne α-diimination, isocyanide imination, and ring-opening oxidative amination of strained alkenes are continuously emerging as a result of better mechanistic understanding of Ti redox catalysis.Ultimately, these Ti-catalyzed and -mediated oxidative amination methods demonstrate the importance of examining often-overlooked elements like the early transition metals through the lens of modern catalysis: rather than a lack of utility, these elements frequently have undiscovered potential for new transformations with orthogonal or complementary selectivity to their late transition metal counterparts.
Collapse
Affiliation(s)
- Ian A. Tonks
- Department of Chemistry, University of Minnesota—Twin Cities, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| |
Collapse
|
22
|
Silyanova EA, Samet AV, Semenova MN, Semenov VV. Synthesis and antiproliferative properties of 3,4-diarylpyrrole-2-carboxamides. Russ Chem Bull 2021. [DOI: 10.1007/s11172-021-3115-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
23
|
Samanta K, Patra P, Kar GK, Dinda SK, Mahanty DS. Diverse synthesis of pyrrolo/indolo[3,2- c]coumarins as isolamellarin-A scaffolds: a brief update. NEW J CHEM 2021. [DOI: 10.1039/d0nj06267g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This review presents a different synthetic approach of pyrrolo/indolo[3,2-c]coumarins via classical reactions including metal-catalyzed and green reaction protocols.
Collapse
Affiliation(s)
- Khokan Samanta
- Department of Chemistry
- Haldia Government College
- Purba Medinipur
- India
| | - Prasanta Patra
- Department of Chemistry
- Jhargram Raj College
- Jhargram 721507
- India
| | | | - Shaishab Kumar Dinda
- Department of Chemistry
- Government General Degree College Datan II
- Paschim Medinipur
- India
| | | |
Collapse
|
24
|
Patra P. 4-Chloro-3-formylcoumarin as a multifaceted building block for the development of various bio-active substituted and fused coumarin heterocycles: a brief review. NEW J CHEM 2021. [DOI: 10.1039/d1nj02755g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
This review presents the diverse synthesis of 3,4-substituted coumarins and 5-, 6- and 7-membered ring fused coumarins using 4-chloro-3-formylcoumarin as the precursor via classical reactions including metal-catalyzed and green reaction protocols.
Collapse
Affiliation(s)
- Prasanta Patra
- Department of Chemistry
- Jhargram Raj College
- Jhargram 721507
- India
| |
Collapse
|
25
|
Fukuda T, Okutani S, Sumi M, Miyagi K, Onodera G, Kimura M. Divergent Total Synthesis of Azalamellarins D and N. HETEROCYCLES 2021. [DOI: 10.3987/com-20-s(k)53] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
26
|
Kumar V, Salam A, Kumar D, Khan T. Concise and Scalable Total Syntheses of Lamellarin Z and other Natural Lamellarins. ChemistrySelect 2020. [DOI: 10.1002/slct.202004008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Virendra Kumar
- Organic Synthesis Laboratory School of Basic Sciences Indian Institute of Technology Bhubaneswar Odisha 752050 India
| | - Abdus Salam
- Organic Synthesis Laboratory School of Basic Sciences Indian Institute of Technology Bhubaneswar Odisha 752050 India
| | - Dileep Kumar
- Organic Synthesis Laboratory School of Basic Sciences Indian Institute of Technology Bhubaneswar Odisha 752050 India
| | - Tabrez Khan
- Organic Synthesis Laboratory School of Basic Sciences Indian Institute of Technology Bhubaneswar Odisha 752050 India
| |
Collapse
|
27
|
See XY, Wen X, Wheeler TA, Klein CK, Goodpaster JD, Reiner BR, Tonks IA. Iterative Supervised Principal Component Analysis Driven Ligand Design for Regioselective Ti-Catalyzed Pyrrole Synthesis. ACS Catal 2020; 10:13504-13517. [PMID: 34327040 PMCID: PMC8318334 DOI: 10.1021/acscatal.0c03939] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The rational design of catalysts remains a challenging endeavor within the broader chemical community owing to the myriad variables that can affect key bond-forming events. Designing selective catalysts for any reaction requires an efficient strategy for discovering predictive structure-activity relationships. Herein, we describe the use of iterative supervised principal component analysis (ISPCA) in de novo catalyst design. The regioselective synthesis of 2,5-dimethyl-1,3,4-triphenyl-1H-pyrrole (C) via a Ti-catalyzed formal [2 + 2 +1] cycloaddition of phenylpropyne and azobenzene was targeted as a proof of principle. The initial reaction conditions led to an unselective mixture of all possible pyrrole regioisomers. ISPCA was conducted on a training set of catalysts, and their performance was regressed against the scores from the top three principal components. Component loadings from this PCA space and k-means clustering were used to inform the design of new test catalysts. The selectivity of a prospective test set was predicted in silico using the ISPCA model, and optimal candidates were synthesized and tested experimentally. This data-driven predictive-modeling workflow was iterated, and after only three generations the catalytic selectivity was improved from 0.5 (statistical mixture of products) to over 11 (>90% C) by incorporating 2,6-dimethyl-4-(pyrrolidin-1-yl)pyridine as a ligand. The origin of catalyst selectivity was probed by examining ISPCA variable loadings in combination with DFT modeling, revealing that ligand lability plays an important role in selectivity. A parallel catalyst search using multivariate linear regression (MLR), a popular approach in catalysis informatics, was also conducted in order to compare these strategies in a hypothetical catalyst scouting campaign. ISPCA appears to be more robust and predictive than MLR when sparse training sets are used that are representative of the data available during the early search for an optimal catalyst. The successful development of a highly selective catalyst without resorting to long, stochastic screening processes demonstrates the inherent power of ISPCA in de novo catalyst design and should motivate the general use of ISPCA in reaction development.
Collapse
Affiliation(s)
- Xin Yi See
- Department of Chemistry, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, United States
| | - Xuelan Wen
- Department of Chemistry, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, United States
| | - T Alexander Wheeler
- Department of Chemistry, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, United States
| | - Channing K Klein
- Department of Chemistry, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, United States
| | - Jason D Goodpaster
- Department of Chemistry, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, United States
| | - Benjamin R Reiner
- Department of Chemistry, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, United States
| | - Ian A Tonks
- Department of Chemistry, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, United States
| |
Collapse
|
28
|
Iqbal S, Rasheed H, Awan RJ, Awan RJ, Mukhtar A, Moloney MG. Recent Advances in the Synthesis of Pyrroles. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824999200528125651] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Pyrroles are the most prevalent heterocyclic compounds, which are present as the basic cores in
many natural products, such as vitamin B12, bile pigments like bilirubin and biliverdin, the porphyrins of
heme, chlorophyll, chlorins, bacteriochlorins, and porphyrinogens. The biological activities of compounds
having pyrrole analogs include antimicrobial (antibacterial, antifungal), anti-cancer (anti-cytotoxic, antimitotic),
anti-tumor, anti-hyperlipidemic, anti-depressant, anti-inflammatory, antihyperglycemic, antiproliferative,
anti-HIV and anti-viral activities. Accordingly, significant attention has been paid to develop competent
methods for the synthesis of pyrroles with improved yields in short times. This review gives an overview of
different methods for the synthesis of pyrrole using easily available precursors using the following routes.
Synthesis of monosubstituted pyrrole using 2,5-dimethoxyfuran
Synthesis of pyrrole using dialkylacetylene dicarboxylate
Synthesis of pyrroles using β-ketoester
Synthesis of pyrrole using 1,2-dicarbonyl compounds
Synthesis of pyrroles using 1,3-dicarbonyl compounds
Synthesis of pyrroles using 1,3-dicarbonyl, amine, nitro and aldehyde group
Synthesis of pyrroles using 1,4-dicarbonyl compound and amines
Synthesis of pyrrole using enones
Synthesis of pyrroles using moieties having acetylene group
Collapse
Affiliation(s)
- Sarosh Iqbal
- Department of Applied Chemistry, Government College University, Faisalabad-38000, Faisalabad, Pakistan
| | - Hina Rasheed
- Department of Applied Chemistry, Government College University, Faisalabad-38000, Faisalabad, Pakistan
| | - Rabiya Javed Awan
- Department of Applied Chemistry, Government College University, Faisalabad-38000, Faisalabad, Pakistan
| | - Ramsha Javed Awan
- Department of Applied Chemistry, Government College University, Faisalabad-38000, Faisalabad, Pakistan
| | - Asma Mukhtar
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science and Engineering Lahore University of Management Sciences, Lahore-54792, Lahore, Pakistan
| | - Mark G. Moloney
- Department of Chemistry, Chemistry Research Laboratory, The University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| |
Collapse
|
29
|
Morikawa D, Morii K, Yasuda Y, Mori A, Okano K. Convergent Total Synthesis of Lamellarins and Their Congeners. J Org Chem 2020; 85:8603-8617. [PMID: 32462869 DOI: 10.1021/acs.joc.0c00998] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A convergent total synthesis of lamellarins S and Z is described. The synthesis features a halogen dance of an easily accessible α,β-dibromopyrrole promoted by an ester moiety. The resultant β,β'-dibromopyrrole undergoes a ligand-controlled Suzuki-Miyaura coupling to provide a range of diarylated pyrrole derivatives. The established synthetic method was also applicable to the synthesis of ningalin B and lukianols A and B.
Collapse
Affiliation(s)
- Daiki Morikawa
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Kazuki Morii
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Yuto Yasuda
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Atsunori Mori
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan.,Research Center for Membrane and Film Technology, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Kentaro Okano
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| |
Collapse
|
30
|
Rusanov DA, Myshlyavtsev AB, Silyanova EA, Samet AV, Semenov VV. Pseudonitrosites as masked nitroalkenes in the Barton–Zard pyrrole synthesis. MENDELEEV COMMUNICATIONS 2020. [DOI: 10.1016/j.mencom.2020.07.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
31
|
Mutoh Y, Ishii Y, Saito S. Direct Formation of Disubstituted Vinylidenes from Internal Alkynes at Group 8 Metal Complexes and its Application to Organic Synthesis. J SYN ORG CHEM JPN 2020. [DOI: 10.5059/yukigoseikyokaishi.78.691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Yuichiro Mutoh
- Department of Chemistry, Tokyo University of Science
- Department of Applied Chemistry, Chuo University
| | | | | |
Collapse
|
32
|
Klintworth R, de Koning CB, Michael JP. Practical Decagram-Scale Synthesis of a Lamellarin Analogue and Deprotection of Lamellarin Isopropyl Ethers. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000499] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Robin Klintworth
- Molecular Sciences Institute; School of Chemistry; University of the Witwatersrand; PO Wits 2050 Johannesburg South Africa
| | - Charles B. de Koning
- Molecular Sciences Institute; School of Chemistry; University of the Witwatersrand; PO Wits 2050 Johannesburg South Africa
| | - Joseph P. Michael
- Molecular Sciences Institute; School of Chemistry; University of the Witwatersrand; PO Wits 2050 Johannesburg South Africa
| |
Collapse
|
33
|
Kanwal S, Ann NU, Fatima S, Emwas AH, Alazmi M, Gao X, Ibrar M, Zaib Saleem RS, Chotana GA. Facile Synthesis of NH-Free 5-(Hetero)Aryl-Pyrrole-2-Carboxylates by Catalytic C-H Borylation and Suzuki Coupling. Molecules 2020; 25:molecules25092106. [PMID: 32365945 PMCID: PMC7248765 DOI: 10.3390/molecules25092106] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 04/26/2020] [Accepted: 04/29/2020] [Indexed: 11/25/2022] Open
Abstract
A convenient two-step preparation of NH-free 5-aryl-pyrrole-2-carboxylates is described. The synthetic route consists of catalytic borylation of commercially available pyrrole-2-carboxylate ester followed by Suzuki coupling without going through pyrrole N–H protection and deprotection steps. The resulting 5-aryl substituted pyrrole-2-carboxylates were synthesized in good- to excellent yields. This synthetic route can tolerate a variety of functional groups including those with acidic protons on the aryl bromide coupling partner. This methodology is also applicable for cross-coupling with heteroaryl bromides to yield pyrrole-thiophene, pyrrole-pyridine, and 2,3’-bi-pyrrole based bi-heteroaryls.
Collapse
Affiliation(s)
- Saba Kanwal
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science & Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore 54792, Pakistan; (S.K.); (N.-u.-A.); (S.F.); (M.I.); (R.S.Z.S.)
| | - Noor-ul- Ann
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science & Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore 54792, Pakistan; (S.K.); (N.-u.-A.); (S.F.); (M.I.); (R.S.Z.S.)
| | - Saman Fatima
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science & Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore 54792, Pakistan; (S.K.); (N.-u.-A.); (S.F.); (M.I.); (R.S.Z.S.)
| | - Abdul-Hamid Emwas
- Core Labs, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia;
| | - Meshari Alazmi
- Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division, Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (M.A.); (X.G.)
- College of Computer Science and Engineering, University of Ha’il, P.O. Box 2440, Ha’il 81481, Saudi Arabia
| | - Xin Gao
- Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division, Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (M.A.); (X.G.)
| | - Maha Ibrar
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science & Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore 54792, Pakistan; (S.K.); (N.-u.-A.); (S.F.); (M.I.); (R.S.Z.S.)
| | - Rahman Shah Zaib Saleem
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science & Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore 54792, Pakistan; (S.K.); (N.-u.-A.); (S.F.); (M.I.); (R.S.Z.S.)
| | - Ghayoor Abbas Chotana
- Department of Chemistry and Chemical Engineering, Syed Babar Ali School of Science & Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore 54792, Pakistan; (S.K.); (N.-u.-A.); (S.F.); (M.I.); (R.S.Z.S.)
- Correspondence: ; Tel.: +92-42-3560-8281
| |
Collapse
|
34
|
Silyanova EA, Samet AV, Salamandra LK, Khrustalev VN, Semenov VV. Formation of 3,4-Diarylpyrrole- and Pyrrolocoumarin Core of Natural Marine Products via Barton-Zard Reaction and Selective O-Demethylation. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000099] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Eugenia A. Silyanova
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky Prospect 119991 Moscow Russian Federation
| | - Alexander V. Samet
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky Prospect 119991 Moscow Russian Federation
| | - Lev K. Salamandra
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky Prospect 119991 Moscow Russian Federation
| | - Victor N. Khrustalev
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky Prospect 119991 Moscow Russian Federation
- Peoples' Friendship University of Russia (RUDN University); 6 Miklukho-Maklaya Street 117198 Moscow Russian Federation
| | - Victor V. Semenov
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; 47 Leninsky Prospect 119991 Moscow Russian Federation
| |
Collapse
|
35
|
Mallampudi NA, Choudhury UM, Mohapatra DK. Total Synthesis of (−)-Citreoisocoumarin, (−)-Citreoisocoumarinol, (−)-12-epi-Citreoisocoumarinol, and (−)-Mucorisocoumarins A and B Using a Gold(I)-Catalyzed Cyclization Strategy. J Org Chem 2020; 85:4122-4129. [DOI: 10.1021/acs.joc.9b03278] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- N. Arjunreddy Mallampudi
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Utkal Mani Choudhury
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
| | - Debendra K. Mohapatra
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
| |
Collapse
|
36
|
Lamellarin alkaloids: Isolation, synthesis, and biological activity. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2020; 83:1-112. [PMID: 32098648 DOI: 10.1016/bs.alkal.2019.10.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Lamellarins are marine alkaloids containing fused 14-phenyl-6H-[1]benzopyrano[4',3':4,5]pyrrolo[2,1-a]isoquinoline or non-fused 3,4-diarylpyrrole-2-carboxylate ring systems. To date, more than 50 lamellarins have been isolated from a variety of marine organisms, such as mollusks, tunicates, and sponges. Many of them, especially fused type I lamellarins, exhibit impressive biological activity, such as potent cytotoxicity, topoisomerase I inhibition, protein kinases inhibition, and anti-HIV-1 activity. Due to their useful biological activity and limited availability from natural sources, a number of synthetic methods have been developed. In this chapter, we present an updated and comprehensive review on lamellarin alkaloids summarizing their isolation, synthesis, and biological activity.
Collapse
|
37
|
Klintworth R, de Koning CB, Michael JP. Demethylative Lactonization Provides a Shortcut to High-Yielding Syntheses of Lamellarins. J Org Chem 2019; 85:1054-1061. [PMID: 31840515 DOI: 10.1021/acs.joc.9b02983] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Modular gram-scale syntheses of the trimethyl ethers of lamellarins G (6) and D (7) were achieved from readily accessible precursors in the highest overall yields reported to date (6, six steps, 82%; 7, seven steps, 86%). A novel demethylative lactonization between an aryl methyl ether and a neighboring carboxylic acid was developed for creating the chromenone unit of the targets to avoid the need for additional protection and deprotection steps. The central pyrrole core was constructed in a late-stage [4 + 1] condensation between ethyl bromoacetate and an enaminone possessing the remaining components of the lamellarin skeleton. Exhaustive demethylation of both permethyl ethers 6 and 7 gave the polyphenolic natural lamellarins A4 (3) and H (5), respectively.
Collapse
Affiliation(s)
- Robin Klintworth
- Molecular Sciences Institute, School of Chemistry , University of the Witwatersrand , Wits 2050 , Johannesburg , South Africa
| | - Charles B de Koning
- Molecular Sciences Institute, School of Chemistry , University of the Witwatersrand , Wits 2050 , Johannesburg , South Africa
| | - Joseph P Michael
- Molecular Sciences Institute, School of Chemistry , University of the Witwatersrand , Wits 2050 , Johannesburg , South Africa
| |
Collapse
|
38
|
Watanabe T, Mutoh Y, Saito S. Synthesis of lactone-fused pyrroles by ruthenium-catalyzed 1,2-carbon migration-cycloisomerization. Org Biomol Chem 2019; 18:81-85. [PMID: 31782470 DOI: 10.1039/c9ob02363a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A ruthenium-catalyzed cycloisomerization of 3-amino-4-alkynyl-2H-chromen-2-ones via 1,2-carbon migration was developed. Various 1-arylchromeno[3,4-b]pyrrol-4(3H)-ones were synthesized in good to excellent yields. The reaction was applied to the formal total synthesis of marine natural products Ningalin B and Lamellarin H. The efficient synthesis of γ-butyrolactone-fused pyrrole derivatives was also achieved.
Collapse
Affiliation(s)
- Takuma Watanabe
- Department of Chemistry, Faculty of Science Tokyo University of Science, 1-3 Kagurazaka Shinjuku-ku, Tokyo 162-8601, Japan.
| | | | | |
Collapse
|
39
|
Jadala C, Prasad B, Prasanthi AVG, Shankaraiah N, Kamal A. Transition metal-free one-pot synthesis of substituted pyrroles by employing aza-Wittig reaction. RSC Adv 2019; 9:30659-30665. [PMID: 35529397 PMCID: PMC9072206 DOI: 10.1039/c9ra06778g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Accepted: 09/12/2019] [Indexed: 11/21/2022] Open
Abstract
A mild and metal-free one-pot synthetic strategy has been developed for the construction of substituted pyrroles by employing aza-Wittig reaction from a unique and unexplored combination of chromones and phenacyl azides. This method does not compromise the diverse substitutions on both the phenacyl azides and chromones. The merits of this method are wide substrate scope, easy functionalization, short reaction time, operationally simple, and higher yields. Moreover, this method is amenable for the generation of a library of key pyrrole building blocks. A mild and metal-free one-pot synthetic strategy has been developed for the construction of substituted pyrroles by employing aza-Wittig reaction from a unique and unexplored combination of chromones and phenacyl azides.![]()
Collapse
Affiliation(s)
- Chetna Jadala
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad-500 037 India
| | - Budaganaboyina Prasad
- Medicinal Chemistry & Pharmacology, CSIR-Indian Institute of Chemical Technology Hyderabad 500 007 India
| | - A V G Prasanthi
- Medicinal Chemistry & Pharmacology, CSIR-Indian Institute of Chemical Technology Hyderabad 500 007 India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad-500 037 India
| | - Ahmed Kamal
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad-500 037 India .,Medicinal Chemistry & Pharmacology, CSIR-Indian Institute of Chemical Technology Hyderabad 500 007 India .,School of Pharmaceutical Education and Research (SPER), Jamia Hamdard New Delhi 110062 India
| |
Collapse
|
40
|
Kumar V, Awasthi A, Salam A, Khan T. Scalable Total Syntheses of Some Natural and Unnatural Lamellarins: Application of a One-Pot Domino Process for Regioselective Access to the Central 1,2,4-Trisubstituted Pyrrole Core. J Org Chem 2019; 84:11596-11603. [PMID: 31433662 DOI: 10.1021/acs.joc.9b01521] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Short and scalable total syntheses of lamellarin G trimethyl ether, lamellarin D trimethyl ether, lamellarin H, lamellarin η, dihydrolamellarin η, and lamellarin U have been realized in four to six linear steps with an overall yield of ≤22%. Highlights of the synthesis include single-step access to the central 1,2,4-trisubstituted pyrrole core in a highly regioselective manner via a one-pot [3+2] cycloaddition/elimination/aromatization sequence-based domino process. Subsequent, palladium-mediated double C-H oxidative coupling in a single-pot operation provides access to the pentacyclic coumarin-fused pyrrolo-dihydroisoquinoline core present in lamellarins.
Collapse
Affiliation(s)
- Virendra Kumar
- Organic Synthesis Laboratory, School of Basic Sciences , Indian Institute of Technology Bhubaneswar , Argul, Khurdha 752050 , Odisha , India
| | - Annapurna Awasthi
- Organic Synthesis Laboratory, School of Basic Sciences , Indian Institute of Technology Bhubaneswar , Argul, Khurdha 752050 , Odisha , India
| | - Abdus Salam
- Organic Synthesis Laboratory, School of Basic Sciences , Indian Institute of Technology Bhubaneswar , Argul, Khurdha 752050 , Odisha , India
| | - Tabrez Khan
- Organic Synthesis Laboratory, School of Basic Sciences , Indian Institute of Technology Bhubaneswar , Argul, Khurdha 752050 , Odisha , India
| |
Collapse
|
41
|
Vargas DF, Larghi EL, Kaufman TS. The 6π-azaelectrocyclization of azatrienes. Synthetic applications in natural products, bioactive heterocycles, and related fields. Nat Prod Rep 2019; 36:354-401. [PMID: 30090891 DOI: 10.1039/c8np00014j] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Covering: 2006 to 2018 The application of the 6π-azaelectrocyclization of azatrienes as a key strategy for the synthesis of natural products, their analogs and related bioactive or biomedically-relevant compounds (from 2006 to date) is comprehensively reviewed. Details about reaction optimization studies, relevant reaction mechanisms and conditions are also discussed.
Collapse
Affiliation(s)
- Didier F Vargas
- Instituto de Química Rosario (IQUIR, CONICET-UNR), Facultad de Ciencias Bioquímicas y Farmacéuticas - Universidad Nacional de Rosario, Suipacha 531, 2000 Rosario, Argentina.
| | | | | |
Collapse
|
42
|
Klintworth R, de Koning CB, Opatz T, Michael JP. A Xylochemically Inspired Synthesis of Lamellarin G Trimethyl Ether via an Enaminone Intermediate. J Org Chem 2019; 84:11025-11031. [DOI: 10.1021/acs.joc.9b01604] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Robin Klintworth
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg, PO Wits 2050, South Africa
| | - Charles B. de Koning
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg, PO Wits 2050, South Africa
| | - Till Opatz
- Institut für Organische Chemie, Johannes Gutenberg-University, Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Joseph P. Michael
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg, PO Wits 2050, South Africa
| |
Collapse
|
43
|
Li G, Dong H, Ma Y, Shao K, Li Y, Wu X, Wang S, Shao Y, Zhao W. Structure-activity relationships study of neolamellarin A and its analogues as hypoxia inducible factor-1 (HIF-1) inhibitors. Bioorg Med Chem Lett 2019; 29:2327-2331. [PMID: 31281016 DOI: 10.1016/j.bmcl.2019.06.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 05/23/2019] [Accepted: 06/14/2019] [Indexed: 02/06/2023]
Abstract
The novel marine pyrrole alkaloid neolamellarin A derived from sponge has been shown to inhibit hypoxia-induced HIF-1 activity. In this work, we designed and synthesized neolamellarin A and its series of derivatives by a convergent synthetic strategy. The HIF-1 inhibitory activity and cytotoxicity of these compounds were evaluated in Hela cells by dual-luciferase reporter gene assay and MTT assay, respectively. The results showed that neolamellarin A 1 (IC50 = 10.8 ± 1.0 μM) and derivative 2b (IC50 = 11.9 ± 3.6 μM) had the best HIF-1 inhibitory activity and low cytotoxicity. Our SAR research focused on the effects of key regions aliphatic carbon chain length, aromatic ring substituents and C-7 substituent on biological activity, providing a basis for the subsequent research on the development of novel pyrrole alkaloids as HIF-1 inhibitors and design of small molecule probes for target protein identification.
Collapse
Affiliation(s)
- Guangzhe Li
- Department of Pharmacy, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China; State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
| | - Huijuan Dong
- Department of Pharmacy, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
| | - Yao Ma
- Dalian Hospital of Obstetrics and Gynaecology, Dalian 116083, China
| | - Kun Shao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
| | - Yueqing Li
- Department of Pharmacy, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China; State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
| | - Xiaodan Wu
- Department of Pharmacy, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
| | - Shisheng Wang
- Department of Pharmacy, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China; State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China.
| | - Yujie Shao
- Department of Pharmacy, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
| | - Weijie Zhao
- Department of Pharmacy, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China; State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
| |
Collapse
|
44
|
Fromont J, Żółtowska-Aksamitowska S, Galli R, Meissner H, Erpenbeck D, Vacelet J, Diaz C, Tsurkan MV, Petrenko I, Youssef D, Ehrlich H. New family and genus of a Dendrilla-like sponge with characters of Verongiida. Part II. Discovery of chitin in the skeleton of Ernstilla lacunosa. ZOOL ANZ 2019. [DOI: 10.1016/j.jcz.2019.03.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
45
|
Shirley HJ, Koyioni M, Muncan F, Donohoe TJ. Synthesis of lamellarin alkaloids using orthoester-masked α-keto acids. Chem Sci 2019; 10:4334-4338. [PMID: 31057760 PMCID: PMC6471603 DOI: 10.1039/c8sc05678a] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 03/07/2019] [Indexed: 12/20/2022] Open
Abstract
Enolate arylation of a protected pyruvate is used as a key step in the short and efficient syntheses of the lamellarins.
Pyruvic acid and other α-keto acids are frequently encountered as intermediates in metabolic pathways, yet their application in total synthesis has met with limited success. In this work, we present a bioinspired strategy that utilizes highly functionalized OBO (oxabicyclo[2.2.2]octyl) orthoester masked α-ketoacids as key intermediates for the construction of both type I and II lamellarin alkaloids. Lamellarin D was synthesized, via a key 1,4-dicarbonyl, in 7 steps and 22% yield from pyruvic acid. Key steps in the synthesis involve one-pot double enolate functionalisation of 1 followed by double annulation to form the target pyrrole/N-vinyl pyrrole core and late-stage direct C–H arylation. Lastly, a novel OBO-masked β-cyano ketone, synthesized from 1, proved to be a valuable intermediate for construction of the type II lamellarin core via HBr-mediated cyclisation. In this way, lamellarin Q was synthesized in 7 steps and 20% yield from pyruvic acid.
Collapse
Affiliation(s)
- Harry J Shirley
- Department of Chemistry , University of Oxford , Chemistry Research Laboratory , Mansfield Road , Oxford , OX1 3TA , UK .
| | - Maria Koyioni
- Department of Chemistry , University of Oxford , Chemistry Research Laboratory , Mansfield Road , Oxford , OX1 3TA , UK .
| | - Filip Muncan
- Department of Chemistry , University of Oxford , Chemistry Research Laboratory , Mansfield Road , Oxford , OX1 3TA , UK .
| | - Timothy J Donohoe
- Department of Chemistry , University of Oxford , Chemistry Research Laboratory , Mansfield Road , Oxford , OX1 3TA , UK .
| |
Collapse
|
46
|
Vyasamudri S, Yang DY. Base-Dependent Divergent Annulation of 4-Chloro-3-formylcoumarin and Tetrahydroisoquinoline: Application to the Synthesis of Isolamellarins and Hydroxypyrrolones. J Org Chem 2019; 84:3662-3670. [DOI: 10.1021/acs.joc.8b03259] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Sameer Vyasamudri
- Department of Chemistry, Tunghai University, No. 1727, Sec. 4, Taiwan Boulevard, Xitun District, Taichung 40704, Taiwan
| | - Ding-Yah Yang
- Department of Chemistry, Tunghai University, No. 1727, Sec. 4, Taiwan Boulevard, Xitun District, Taichung 40704, Taiwan
| |
Collapse
|
47
|
Liu J, Chakraborty P, Zhang H, Zhong L, Wang ZX, Huang X. Gold-Catalyzed Atom-Economic Synthesis of Sulfone-Containing Pyrrolo[2,1-a]isoquinolines from Diynamides: Evidence for Consecutive Sulfonyl Migration. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04934] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Jibing Liu
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Pushkin Chakraborty
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Heng Zhang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liang Zhong
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi-Xiang Wang
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Xueliang Huang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| |
Collapse
|
48
|
Fukuda T, Matsuoka F, Matsuo Y, Yoshioka N, Onodera G, Kimura M, Ishibashi F, Iwao M. Synthesis and Evaluation of Topoisomerase I Inhibitors Possessing the 5,13-Dihydro-6H-benzo[6,7]indolo[3,2-c]quinolin-6-one Scaffold. HETEROCYCLES 2019. [DOI: 10.3987/com-18-s(f)70] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
49
|
Choudhary S, Singh A, Yadav J, Mir NA, Anthal S, Kant R, Kumar I. A simple route to tetracyclic oxazepine-fused pyrroles via metal-free [3+2] annulation between dibenzo[b,f][1,4]oxazepines and aqueous succinaldehyde. NEW J CHEM 2019. [DOI: 10.1039/c8nj04861d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A direct method for the synthesis of tetracyclic oxazepine-fused pyrroles has been developed through [3+2] annulation between aqueous succinaldehyde and dibenzo[b,f][1,4]oxazepines under metal-free conditions.
Collapse
Affiliation(s)
- Sachin Choudhary
- Department of Chemistry
- Birla Institute of Technology and Science
- Pilani 333 031
- India
| | - Anoop Singh
- Department of Chemistry
- Birla Institute of Technology and Science
- Pilani 333 031
- India
| | - Jyothi Yadav
- Department of Chemistry
- Birla Institute of Technology and Science
- Pilani 333 031
- India
| | - Nisar A. Mir
- Department of Chemistry
- Birla Institute of Technology and Science
- Pilani 333 031
- India
| | - Sumati Anthal
- X-ray Crystallography Laboratory
- Post-Graduate Department of Physics & Electronics
- University of Jammu
- Jammu 180 006
- India
| | - Rajni Kant
- X-ray Crystallography Laboratory
- Post-Graduate Department of Physics & Electronics
- University of Jammu
- Jammu 180 006
- India
| | - Indresh Kumar
- Department of Chemistry
- Birla Institute of Technology and Science
- Pilani 333 031
- India
| |
Collapse
|
50
|
Colligs VC, Dialer C, Opatz T. Synthesis of Lamellarin G Trimethyl Ether by von Miller-Plöchl-Type Cyclocondensation. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800611] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Vanessa C. Colligs
- Institute of Organic Chemistry; University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Clemens Dialer
- Institute of Organic Chemistry; University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Till Opatz
- Institute of Organic Chemistry; University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
| |
Collapse
|