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Gettler J, Markovič M, Koóš P, Gracza T. Recent Advances in the Research on Luotonins A, B, and E. Molecules 2024; 29:3522. [PMID: 39124927 PMCID: PMC11314610 DOI: 10.3390/molecules29153522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2024] [Revised: 07/24/2024] [Accepted: 07/24/2024] [Indexed: 08/12/2024] Open
Abstract
This digest review summarises the most recent progress in the study on luotonins A, B and E. The literature covered in this overview spans from January 2012 to April 2024 and presents synthetic methodologies for the assembly of the quinolinopyrrolo-quinazoline scaffold, the structural motifs present in luotonins A, B, and E, and the evaluation of the biological activities of their derivatives and structural analogues.
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Affiliation(s)
| | - Martin Markovič
- Department of Organic Chemistry, Institute of Organic Chemistry, Catalysis and Petrochemistry, Slovak University of Technology, Radlinského 9, SK-812 37 Bratislava, Slovakia; (J.G.); (T.G.)
| | - Peter Koóš
- Department of Organic Chemistry, Institute of Organic Chemistry, Catalysis and Petrochemistry, Slovak University of Technology, Radlinského 9, SK-812 37 Bratislava, Slovakia; (J.G.); (T.G.)
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2
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Vaskevych A, Dekhtyar M, Vovk M. Cyclizations of Alkenyl(Alkynyl)-Functionalized Quinazolinones and their Heteroanalogues: A Powerful Strategy for the Construction of Polyheterocyclic Structures. CHEM REC 2024; 24:e202300255. [PMID: 37830463 DOI: 10.1002/tcr.202300255] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/28/2023] [Indexed: 10/14/2023]
Abstract
Quinazolin-4-one, its heteroanalogues, and derivatives represent an outstandingly important class of compounds in modern organic, medicinal, and pharmaceutical chemistry, as these molecular structures are noted for their wide synthetic and pharmacological potential. In the last years, ever-increasing research attention has been paid to quinazolinone derivatives bearing alkenyl and alkynyl substituents on the pyrimidinone nucleus. The original structural combination of synthetically powerful endocyclic amidine (or amidine-related) and exocyclic unsaturated moieties provides a driving force for cyclizations, which offer an efficient toolkit to construct a variety of fused pyrimidine systems with saturated N- and N,S-heterocycles. In this connection, the present review article is mainly aimed at systematic coverage of the progress in using alkenyl(alkynyl)quinazolinones and their heteroanalogues as convenient bifunctional substrates for regioselective annulation of small- and medium-sized heterocyclic nuclei. Much attention is paid to elucidating the structural and electronic effects of reagents on the regio- and stereoselectivity of the cyclizations as well as to clarifying the relevant reaction mechanisms.
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Affiliation(s)
- Alla Vaskevych
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Academician Kukhar str., 5, Kyiv 02660, Ukraine
| | - Maryna Dekhtyar
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Academician Kukhar str., 5, Kyiv, 02660, Ukraine
| | - Mykhailo Vovk
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Academician Kukhar str., 5, Kyiv, 02660, Ukraine
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3
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Rasapalli S, Sammeta VR, Murphy ZF, Golen JA, Agama K, Pommier Y, Savinov SN. Design and synthesis of C-aryl angular luotonins via a one-pot aza-Nazarov-Friedlander sequence and their Topo-I inhibition studies along with C-aryl vasicinones and luotonins. Bioorg Med Chem Lett 2021; 41:127998. [PMID: 33794318 PMCID: PMC8113096 DOI: 10.1016/j.bmcl.2021.127998] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 03/17/2021] [Accepted: 03/18/2021] [Indexed: 12/24/2022]
Abstract
A facile one-pot synthesis of C-ring substituted angular luotonins has been realized via a methanesulfonic acid mediated aza-Nazarov-Friedlander condensation sequence on quinazolinonyl enones. Topoisomerase I (topo-I) inhibition studies revealed that the angular luotonin library (7a-7l) and their regioisomeric analogs (linear luotonins, 8a-8l) are weak negative modulators, compared to camptothecin. These results would fare well for the design of topo-I-inert luotonins for non-oncological applications such as anti-fungal and insecticide lead developments. Surprisingly, the tricyclic vasicinones (9h, 9i, and 9j) showed better topo-I inhibition compared to pentacyclic C-aryl luotonins providing a novel pharmacophore for further explorations.
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Affiliation(s)
- Sivappa Rasapalli
- University of Massachusetts Dartmouth, Department of Chemistry and Biochemistry, 285 Old Westport Rd, North Dartmouth, MA 02747, USA.
| | - Vamshikrishna Reddy Sammeta
- University of Massachusetts Dartmouth, Department of Chemistry and Biochemistry, 285 Old Westport Rd, North Dartmouth, MA 02747, USA
| | - Zachary F Murphy
- University of Massachusetts Dartmouth, Department of Chemistry and Biochemistry, 285 Old Westport Rd, North Dartmouth, MA 02747, USA
| | - James A Golen
- University of Massachusetts Dartmouth, Department of Chemistry and Biochemistry, 285 Old Westport Rd, North Dartmouth, MA 02747, USA
| | - Keli Agama
- Developmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892-4255, USA
| | - Yves Pommier
- Developmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892-4255, USA
| | - Sergey N Savinov
- Department of Biochemistry and Molecular Biology, UMass Amherst, Amherst, MA 01003, USA
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4
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Ibric A, Battisti V, Deckardt S, Haller AV, Lee C, Prötsch C, Langer T, Heffeter P, Schueffl HH, Marian B, Haider N. A-ring and E-ring modifications of the cytotoxic alkaloid Luotonin A: Synthesis, computational and biological studies. Bioorg Med Chem 2020; 28:115443. [PMID: 32201190 DOI: 10.1016/j.bmc.2020.115443] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 11/15/2022]
Abstract
A series of new Luotonin A derivatives with substituents at rings A and E was synthesized, together with some E-ring-unsubstituted derivatives. Subsequently, the compound library was examined in silico for their binding into a previously proposed site in the DNA/topoisomerase I binary complex. Whereas no convincing correlation between docking scores and biological data from in vitro assays could be found, one novel 4,9-diamino Luotonin A derivative had strong antiproliferative activity based on massive G2/M phase arrest. As this biological activity clearly differs from the reference compound Camptothecin, this strongly indicates that at least some Luotonin A derivatives may be potent antiproliferative agents, however with a different mode of action.
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Affiliation(s)
- Amra Ibric
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstraße 14, A-1090 Vienna, Austria
| | - Verena Battisti
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstraße 14, A-1090 Vienna, Austria
| | - Sophie Deckardt
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstraße 14, A-1090 Vienna, Austria
| | - Anna Veronika Haller
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstraße 14, A-1090 Vienna, Austria
| | - Calvin Lee
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstraße 14, A-1090 Vienna, Austria
| | - Corinna Prötsch
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstraße 14, A-1090 Vienna, Austria
| | - Thierry Langer
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstraße 14, A-1090 Vienna, Austria
| | - Petra Heffeter
- Institute of Cancer Research and Comprehensive Cancer Center, Medical University of Vienna, Borschkegasse 8a, A-1090 Vienna, Austria
| | - Hemma Henrike Schueffl
- Institute of Cancer Research and Comprehensive Cancer Center, Medical University of Vienna, Borschkegasse 8a, A-1090 Vienna, Austria
| | - Brigitte Marian
- Institute of Cancer Research and Comprehensive Cancer Center, Medical University of Vienna, Borschkegasse 8a, A-1090 Vienna, Austria
| | - Norbert Haider
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstraße 14, A-1090 Vienna, Austria.
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5
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Keivanloo A, Bakherad M, Mokhtarei L. Sodium 4‐amino‐5‐hydroxy‐7‐sulfonaphthalene‐2‐sulfonate an efficient ligand for click reaction in water: Synthesis of 1,2,3‐triazole pharmacophore linked‐quinazolinone scaffold. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3832] [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)
- Ali Keivanloo
- Faculty of ChemistryShahrood University of Technology Shahrood Iran
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6
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Rasapalli S, Sammeta VR, Murphy ZF, Huang Y, Boerth JA, Golen JA, Savinov SN. Synthesis of C-Ring-Substituted Vasicinones and Luotonins via Regioselective Aza-Nazarov Cyclization of Quinazolinonyl Enones. Org Lett 2019; 21:9824-9828. [PMID: 31800251 DOI: 10.1021/acs.orglett.9b03586] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A facile synthesis of C-ring substituted luotonins and vasicinones has been realized via a super-acid-mediated aza-Nazarov cyclization of quinazolinonyl enones. The regioselectivity of the cyclization is highly dependent on proton availability in the reaction medium.
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Affiliation(s)
- Sivappa Rasapalli
- Department of Chemistry and Biochemistry , University of Massachusetts Dartmouth , 285 Old Westport Rd. , North Dartmouth , Massachusetts 02747 , United States
| | - Vamshikrishna Reddy Sammeta
- Department of Chemistry and Biochemistry , University of Massachusetts Dartmouth , 285 Old Westport Rd. , North Dartmouth , Massachusetts 02747 , United States
| | - Zachary F Murphy
- Department of Chemistry and Biochemistry , University of Massachusetts Dartmouth , 285 Old Westport Rd. , North Dartmouth , Massachusetts 02747 , United States
| | - Yanchang Huang
- Department of Chemistry and Biochemistry , University of Massachusetts Dartmouth , 285 Old Westport Rd. , North Dartmouth , Massachusetts 02747 , United States
| | - Jeffrey A Boerth
- Department of Chemistry and Biochemistry , University of Massachusetts Dartmouth , 285 Old Westport Rd. , North Dartmouth , Massachusetts 02747 , United States
| | - James A Golen
- Department of Chemistry and Biochemistry , University of Massachusetts Dartmouth , 285 Old Westport Rd. , North Dartmouth , Massachusetts 02747 , United States
| | - Sergey N Savinov
- Department of Biochemistry and Molecular Biology , University of Massachusetts Amherst , Amherst , Massachusetts 01003 , United States
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Almansour AI, Kumar RS, Arumugam N, Bianchini G, Menéndez JC, Mohammad F, Dupadahalli K, Altaf M. D-Ring-Modified Analogues of Luotonin A with Reduced Planarity: Design, Synthesis, and Evaluation of Their Topoisomerase Inhibition-Associated Cytotoxicity. BIOMED RESEARCH INTERNATIONAL 2019; 2019:2514524. [PMID: 31815127 PMCID: PMC6877907 DOI: 10.1155/2019/2514524] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 10/14/2019] [Indexed: 11/22/2022]
Abstract
A- and D-ring-modified luotonin-inspired heterocycles have been synthesized and were evaluated for their activity against the viability of four cancer cell lines in vitro, namely, MCF7, HCT116, JURKAT, and NCI-H460. The analysis of results indicated that two of the synthesized derivatives displayed good inhibition against the growth of the human colon cancer HCT116 cell line, with potencies lower than but in the same order of magnitude as camptothecin (CPT). These two luotonin analogues also showed an activity similar to that of the highly potent alkaloid CPT as inhibitors of topoisomerase I and also inhibited topoisomerase II. These results show that complete planarity is not a strict requirement for topoisomerase inhibition by luotonin-related compounds, paving the way to the design of analogues with improved solubility.
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Affiliation(s)
- Abdulrahman I. Almansour
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Raju Suresh Kumar
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Natarajan Arumugam
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Giulia Bianchini
- Unidad de Química Orgánica y Farmacéutica, Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | - J. Carlos Menéndez
- Unidad de Química Orgánica y Farmacéutica, Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | - Faruq Mohammad
- Surfactants Research Chair, Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Kotresha Dupadahalli
- Department of Botany, Davangere University, Shivagangothri, Davangere 577007, Karnataka, India
| | - Mohammad Altaf
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia
- Central Laboratory, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia
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8
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Almansour AI, Suresh Kumar R, Arumugam N, Bianchini G, Menéndez JC, Al-thamili DM, Periyasami G, Altaf M. Design and synthesis of A- and D ring-modified analogues of luotonin A with reduced planarity. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.05.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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9
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Abstract
Chemoselective reduction of the corresponding 9-nitro precursor by catalytic transfer hydrogenation afforded the title compound, a new 9-amino derivative of the antitumor alkaloid Luotonin A, in good yield. The structure of the compound was established by means of 1D and 2D 1H-NMR and 13C-NMR spectroscopy as well as by EI-MS and high-resolution ESI-MS.
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10
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Ibric A, Eckerstorfer S, Eder M, Louko I, Tunjic L, Heffeter P, Schueffl HH, Marian B, Haider N. Position-Selective Synthesis and Biological Evaluation of Four Isomeric A-Ring Amino Derivatives of the Alkaloid Luotonin A. Molecules 2019; 24:molecules24040716. [PMID: 30781470 PMCID: PMC6412769 DOI: 10.3390/molecules24040716] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 02/11/2019] [Accepted: 02/14/2019] [Indexed: 12/18/2022] Open
Abstract
Following two orthogonal synthetic routes, a series of all four possible A-ring amino derivatives of the natural product Luotonin A (a known Topoisomerase I inhibitor) was synthesized. In both strategies, intramolecular cycloaddition reactions are the key step. The target compounds were obtained in good yields by mild catalytic transfer hydrogenation of the corresponding nitro precursors. In-vitro evaluation of the antiproliferative activity towards human tumor cell lines revealed the 4-amino compound (5b) to be the most effective agent, showing an interesting profile of cytotoxic activity. Among other effects, a significant G2/M cell cycle arrest was observed for this compound, suggesting that either Topoisomerase I is not the only biological target, or that some atypical mechanism is responsible for inhibition of this enzyme.
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Affiliation(s)
- Amra Ibric
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstraße 14, A-1090 Vienna, Austria.
| | - Stefan Eckerstorfer
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstraße 14, A-1090 Vienna, Austria.
| | - Martin Eder
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstraße 14, A-1090 Vienna, Austria.
| | - Ivan Louko
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstraße 14, A-1090 Vienna, Austria.
| | - Leopold Tunjic
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstraße 14, A-1090 Vienna, Austria.
| | - Petra Heffeter
- Institute of Cancer Research and Comprehensive Cancer Center, Medical University of Vienna, Borschkegasse 8a, A-1090 Vienna, Austria.
| | - Hemma Henrike Schueffl
- Institute of Cancer Research and Comprehensive Cancer Center, Medical University of Vienna, Borschkegasse 8a, A-1090 Vienna, Austria.
| | - Brigitte Marian
- Institute of Cancer Research and Comprehensive Cancer Center, Medical University of Vienna, Borschkegasse 8a, A-1090 Vienna, Austria.
| | - Norbert Haider
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstraße 14, A-1090 Vienna, Austria.
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11
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Toyota M, Kagawa N, Nishimura K, Abe S. Concise Approach to Mono- and Disubstituted Luotonin A Analogs and Their Cytotoxicity Test. HETEROCYCLES 2018. [DOI: 10.3987/com-17-s(t)6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Mucaji P, Atanasov AG, Bak A, Kozik V, Sieron K, Olsen M, Pan W, Liu Y, Hu S, Lan J, Haider N, Musiol R, Vanco J, Diederich M, Ji S, Zitko J, Wang D, Agbaba D, Nikolic K, Oljacic S, Vucicevic J, Jezova D, Tsantili-Kakoulidou A, Tsopelas F, Giaginis C, Kowalska T, Sajewicz M, Silberring J, Mielczarek P, Smoluch M, Jendrzejewska I, Polanski J, Jampilek J. The Forty-Sixth Euro Congress on Drug Synthesis and Analysis: Snapshot †. Molecules 2017; 22:molecules22111848. [PMID: 29143778 PMCID: PMC6150335 DOI: 10.3390/molecules22111848] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 10/26/2017] [Accepted: 10/26/2017] [Indexed: 01/08/2023] Open
Abstract
The 46th EuroCongress on Drug Synthesis and Analysis (ECDSA-2017) was arranged within the celebration of the 65th Anniversary of the Faculty of Pharmacy at Comenius University in Bratislava, Slovakia from 5-8 September 2017 to get together specialists in medicinal chemistry, organic synthesis, pharmaceutical analysis, screening of bioactive compounds, pharmacology and drug formulations; promote the exchange of scientific results, methods and ideas; and encourage cooperation between researchers from all over the world. The topic of the conference, "Drug Synthesis and Analysis," meant that the symposium welcomed all pharmacists and/or researchers (chemists, analysts, biologists) and students interested in scientific work dealing with investigations of biologically active compounds as potential drugs. The authors of this manuscript were plenary speakers and other participants of the symposium and members of their research teams. The following summary highlights the major points/topics of the meeting.
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Affiliation(s)
- Pavel Mucaji
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University, Odbojarov 10, 83232 Bratislava, Slovakia.
| | - Atanas G Atanasov
- Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, Postepu 36A, 05-552 Jastrzebiec, Poland.
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria.
| | - Andrzej Bak
- Institute of Chemistry, University of Silesia, Szkolna 9, 40007 Katowice, Poland.
| | - Violetta Kozik
- Department of Synthesis Chemistry, Faculty of Mathematics, Physics and Chemistry, University of Silesia, Szkolna 9, 40007 Katowice, Poland.
| | - Karolina Sieron
- Department of Physical Medicine, Medical University of Silesia, Medykow 18, 40752 Katowice, Poland.
| | - Mark Olsen
- Department of Pharmaceutical Sciences, College of Pharmacy Glendale, Midwestern University, 19555 N. 59th Avenue, Glendale, AZ 85308, USA.
| | - Weidong Pan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang 550014, China.
- Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Baijin Road, Guiyang, 550014, China.
| | - Yazhou Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang 550014, China.
- Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Baijin Road, Guiyang, 550014, China.
| | - Shengchao Hu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang 550014, China.
- Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Baijin Road, Guiyang, 550014, China.
| | - Junjie Lan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, 3491 Baijin Road, Guiyang 550014, China.
- Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, 3491 Baijin Road, Guiyang, 550014, China.
| | - Norbert Haider
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstraße 14, A-1090 Vienna, Austria.
| | - Robert Musiol
- Institute of Chemistry, University of Silesia, Szkolna 9, 40007 Katowice, Poland.
| | - Jan Vanco
- Department of Inorganic Chemistry & Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University, 17. listopadu 12, 77146 Olomouc, Czech Republic.
| | - Marc Diederich
- Department of Pharmacy, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Seoul 08826, Korea.
| | - Seungwon Ji
- Department of Pharmacy, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Seoul 08826, Korea.
| | - Jan Zitko
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Kralove, Charles University, Heyrovskeho 1203, 50005 Hradec Kralove, Czech Republic.
| | - Dongdong Wang
- Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, Postepu 36A, 05-552 Jastrzebiec, Poland.
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria.
| | - Danica Agbaba
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia.
| | - Katarina Nikolic
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia.
| | - Slavica Oljacic
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia.
| | - Jelica Vucicevic
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia.
| | - Daniela Jezova
- Laboratory of Pharmacological Neuroendocrinology, Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia.
| | - Anna Tsantili-Kakoulidou
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, 15771 Athens, Greece.
| | - Fotios Tsopelas
- Laboratory of Inorganic and Analytical Chemistry, School of Chemical Engineering, National Technical University of Athens, Iroon Polytechniou 9, 15780 Athens, Greece.
| | - Constantinos Giaginis
- Department of Food Science and Nutrition, School of Environment, University of the Aegean, 81400 Myrina, Lemnos, Greece.
| | - Teresa Kowalska
- Institute of Chemistry, University of Silesia, Szkolna 9, 40007 Katowice, Poland.
| | - Mieczyslaw Sajewicz
- Institute of Chemistry, University of Silesia, Szkolna 9, 40007 Katowice, Poland.
| | - Jerzy Silberring
- Department of Biochemistry and Neurobiology, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Mickiewicza 30, 30059 Krakow, Poland.
| | - Przemyslaw Mielczarek
- Department of Biochemistry and Neurobiology, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Mickiewicza 30, 30059 Krakow, Poland.
| | - Marek Smoluch
- Department of Biochemistry and Neurobiology, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Mickiewicza 30, 30059 Krakow, Poland.
| | - Izabela Jendrzejewska
- Department of Crystallography, Faculty of Mathematics, Physics and Chemistry, University of Silesia, Bankowa 12, 40006 Katowice, Poland.
| | - Jaroslaw Polanski
- Institute of Chemistry, University of Silesia, Szkolna 9, 40007 Katowice, Poland.
| | - Josef Jampilek
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Comenius University, Odbojarov 10, 83232 Bratislava, Slovakia.
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13
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A Facile Oxidative Opening of the C-Ring in Luotonin A and Derivatives. Molecules 2017; 22:molecules22091540. [PMID: 28895937 PMCID: PMC6151605 DOI: 10.3390/molecules22091540] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 09/11/2017] [Accepted: 09/11/2017] [Indexed: 11/17/2022] Open
Abstract
An oxidative ring opening reaction of the central ring C in the alkaloid Luotonin A and two of its derivatives was found to occur upon heating with an excess amine and potassium carbonate in dimethylsulfoxide (DMSO) solution in the presence of air oxygen. The structure of the novel amide-type products was elucidated and a possible mechanism for this reaction is proposed. Four of the new compounds show moderate in vitro anticancer activity towards human colon adenocarcinoma cells.
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14
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Almansour AI, Arumugam N, Suresh Kumar R, Mahalingam SM, Sau S, Bianchini G, Menéndez JC, Altaf M, Ghabbour HA. Design, synthesis and antiproliferative activity of decarbonyl luotonin analogues. Eur J Med Chem 2017; 138:932-941. [PMID: 28753517 DOI: 10.1016/j.ejmech.2017.07.027] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 07/06/2017] [Accepted: 07/16/2017] [Indexed: 12/26/2022]
Abstract
A small library of benzimidazole-fused pyrrolo[3,4-b]quinoline has been synthesized from readily available benzimidazole 2-carbaldehyde and various substituted arylamines in good to excellent yields utilizing an intramolecular Povarov reaction catalyzed by boron trifluoride diethyl etharate as the key final step. The compounds thus synthesized can be considered as decarbonyl analogues of the anticancer alkaloid luotonin A and were evaluated in a DNA relaxation assay for their ability to inhibit human topoisomerase I. Interestingly, two of the compounds showed a remarkable activity that is comparable to that of the standard drug camptothecin. The compounds were also evaluated for their cytotoxic effect in four highly aggressive human cancer cell lines, namely KB, MDA-MB231 (breast), LNCap (prostate), and HT1080 (fibrosarcoma). Some of the compounds obtained showed promising cytotoxicities for these four cell lines.
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Affiliation(s)
- Abdulrahman I Almansour
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Natarajan Arumugam
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Raju Suresh Kumar
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - S M Mahalingam
- Purdue University, Department of Chemistry, 560 Oval Drive, West Lafayette, IN 47907-2084, USA
| | - Samaresh Sau
- Purdue University, Department of Chemistry, 560 Oval Drive, West Lafayette, IN 47907-2084, USA
| | - Giulia Bianchini
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | - J Carlos Menéndez
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain.
| | - Mohammad Altaf
- Central Laboratory, Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Hazem A Ghabbour
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
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