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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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Rasapalli S, Huang Y, Sammeta VR, Alshehry R, Anver F, Golen JA, Krishnamoorthy S, Chavan SP. Diversity oriented total synthesis (DOTS) of pyridoquinazolinone alkaloids and their analogues. TETRAHEDRON CHEM 2024; 9:100062. [PMID: 39329156 PMCID: PMC11426416 DOI: 10.1016/j.tchem.2024.100062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 09/28/2024]
Abstract
A short diversity oriented total synthesis (DOTS) of substituted rutaecarpines, homo-luotonins, homo-vasicinone, homo-isaindigotones and homo-vasnetine has been achieved from the key tricyclic intermediate. The [6,6,6] tricyclic ketone, the mackinazolindione, was accessed from simple substrates i.e., quinazolinone diester obtained from the disubstituted anthranilamide which in turn was prepared from the coupling of amino acid ester and ethyl oxalyl chloride with isatoic anhydride and Dieckmann condensation chemistry.
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Affiliation(s)
- Sivappa Rasapalli
- Department of Chemistry and Biochemistry, University of Massachusetts Dartmouth, 285 Old Westport Rd, North Dartmouth, MA-02747, USA
| | - Yanchang Huang
- Department of Chemistry and Biochemistry, University of Massachusetts Dartmouth, 285 Old Westport Rd, North Dartmouth, MA-02747, USA
| | - Vamshikrishna Reddy Sammeta
- Department of Chemistry and Biochemistry, University of Massachusetts Dartmouth, 285 Old Westport Rd, North Dartmouth, MA-02747, USA
| | - Reem Alshehry
- Department of Chemistry and Biochemistry, University of Massachusetts Dartmouth, 285 Old Westport Rd, North Dartmouth, MA-02747, USA
| | - Fazmina Anver
- Department of Chemistry and Biochemistry, University of Massachusetts Dartmouth, 285 Old Westport Rd, North Dartmouth, MA-02747, USA
| | - James A Golen
- Department of Chemistry and Biochemistry, University of Massachusetts Dartmouth, 285 Old Westport Rd, North Dartmouth, MA-02747, USA
| | | | - Subhash P Chavan
- Organic Chemistry Division, National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India
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Yagci BB, Donmez SE, Şahin O, Türkmen YE. Catalytic aza-Nazarov cyclization reactions to access α-methylene-γ-lactam heterocycles. Beilstein J Org Chem 2023; 19:66-77. [PMID: 36741815 PMCID: PMC9874235 DOI: 10.3762/bjoc.19.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 01/10/2023] [Indexed: 01/19/2023] Open
Abstract
We have developed a catalytic aza-Nazarov reaction of N-acyliminium salts generated in situ from the reaction of a variety of cyclic and acyclic imines with α,β-unsaturated acyl chlorides to afford substituted α-methylene-γ-lactam heterocycles. The reactions proceed effectively in the presence of catalytic (20 mol %) amounts of AgOTf as an anion exchange agent or hydrogen-bond donors such as squaramides and thioureas as anion-binding organocatalysts. The aza-Nazarov cyclization of 3,4-dihydroisoquinolines with α,β-unsaturated acyl chlorides gives tricyclic lactam products 7 in up to 79% yield with full diastereocontrol (dr = >99:1). The use of acyclic imines in a similar catalytic aza-Nazarov reaction with 20 mol % of AgOTf results in the formation of α-methylene-γ-lactam heterocycles 19 in up to 76% yield and with good to high diastereoselectivities (4.3:1 to 16:1). We have demonstrated the scalability of the reaction with a gram-scale example. The relative stereochemistry of the α-methylene-γ-lactam products 19 has been determined via the single-crystal X-ray analysis of lactam 19l. In order to shed light on the details of the reaction mechanism, we have performed carefully designed mechanistic studies which consist of experiments on the effect of β-silicon stabilization, the alkene geometry of the α,β-unsaturated acyl chloride reactants, and adventitious water on the success of the catalytic aza-Nazarov reaction.
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Affiliation(s)
- Bilge Banu Yagci
- Department of Chemistry, Faculty of Science, Bilkent University, Ankara 06800, Turkey
| | - Selin Ezgi Donmez
- Department of Chemistry, Faculty of Science, Bilkent University, Ankara 06800, Turkey
| | - Onur Şahin
- Department of Occupational Health & Safety, Faculty of Health Sciences, Sinop University, Sinop 57000, Turkey
| | - Yunus Emre Türkmen
- Department of Chemistry, Faculty of Science, Bilkent University, Ankara 06800, Turkey
- UNAM – National Nanotechnology Research Center, Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
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Xu R, Wang Z, Zheng Q, Patil P, Dömling A. A Bifurcated Multicomponent Synthesis Approach to Polycyclic Quinazolinones. J Org Chem 2022; 87:13023-13033. [PMID: 36095044 PMCID: PMC9552225 DOI: 10.1021/acs.joc.2c01561] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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The rapid synthesis of diverse substituted polycyclic
quinazolinones
was achieved by two orthogonal Ugi four-component reaction (Ugi-4CR)-based
protocols: the first two-step approach via an ammonia-Ugi-4CR followed
by palladium-catalyzed annulation; in the second approach, cyanamide
was used unprecedently as an amine component in Ugi-4CR followed by
an AIBN/tributyltin hydride-induced radical reaction. Like no other
method, MCR and cyclization could efficiently construct many biologically
interesting compounds with tailored properties in very few steps.
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Affiliation(s)
- Ruixue Xu
- Drug Design Group, Department of Pharmacy, University of Groningen, Groningen 9713, AV, The Netherlands
| | - Zefeng Wang
- Drug Design Group, Department of Pharmacy, University of Groningen, Groningen 9713, AV, The Netherlands
| | - Qiang Zheng
- Drug Design Group, Department of Pharmacy, University of Groningen, Groningen 9713, AV, The Netherlands
| | - Pravin Patil
- Drug Design Group, Department of Pharmacy, University of Groningen, Groningen 9713, AV, The Netherlands
| | - Alexander Dömling
- Drug Design Group, Department of Pharmacy, University of Groningen, Groningen 9713, AV, The Netherlands
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Ru GX, Zhang TT, Zhang M, Jiang XL, Wan ZK, Zhu XH, Shen WB, Gao GQ. Recent progress towards the transition-metal-catalyzed Nazarov cyclization of alkynes via metal carbenes. Org Biomol Chem 2021; 19:5274-5283. [PMID: 34060570 DOI: 10.1039/d1ob00744k] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
In recent years, transition-metal-catalyzed tandem cyclization reactions of alkynes, especially those involving a metal carbene intermediate, have received worthwhile interest, as this type of reaction does not require the use of risky and potentially explosive diazo compounds as starting materials for carbene generation. A significant and general strategy for the stereospecific synthesis of 5-membered cycles is Nazarov cyclization based on the 4π-conrotatory electrocyclization of a conjugated pentadienyl cation to afford a cyclopentenyl cation. In this review, we introduce an overview of recent advances in the transition-metal-catalyzed Nazarov cyclization of alkynes via a metal carbene intermediate, and categorize these reactions according to the structure of the metal carbene. Our aim is to accelerate advancements in this enchanting area of research.
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Affiliation(s)
- Guang-Xin Ru
- College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, Henan 450002, China.
| | - Ting-Ting Zhang
- College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, Henan 450002, China.
| | - Meng Zhang
- College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, Henan 450002, China.
| | - Xiao-Lei Jiang
- College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, Henan 450002, China.
| | - Zheng-Kai Wan
- College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, Henan 450002, China.
| | - Xiu-Hong Zhu
- College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, Henan 450002, China.
| | - Wen-Bo Shen
- College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, Henan 450002, China.
| | - Guang-Qin Gao
- College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, Henan 450002, China.
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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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Afanasyev OI, Podyacheva E, Rudenko A, Tsygankov AA, Makarova M, Chusov D. Redox Condensations of o-Nitrobenzaldehydes with Amines under Mild Conditions: Total Synthesis of the Vasicinone Family. J Org Chem 2020; 85:9347-9360. [PMID: 32515592 DOI: 10.1021/acs.joc.0c00794] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A total synthesis of the vasicinone family of natural products from bulk chemicals was developed. Reductive condensation of o-nitrobenzaldehydes with amines utilizing iron pentacarbonyl as a reducing agent followed by subsequent oxidation leads to a great variety of polycyclic nitrogen-containing heterocycles under mild conditions. Enantiomerically pure vasicinone, rutaecarpine, isaindigotone, and luotonin were synthesized from readily available starting materials like hydroxyproline, nitrobenzaldehyde, pyrrolidine, and piperidine in two to four operational steps without chromatography. The antifungal activity of all products was tested.
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Affiliation(s)
- Oleg I Afanasyev
- A.N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, Vavilova St. 28, Moscow 119991, Russian Federation
| | - Evgeniya Podyacheva
- A.N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, Vavilova St. 28, Moscow 119991, Russian Federation
| | - Alexander Rudenko
- Higher Chemical College, Dmitry Mendeleev University of Chemical Technology of Russia, Miusskaya sq. 9, Moscow 125047, Russian Federation
| | - Alexey A Tsygankov
- A.N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, Vavilova St. 28, Moscow 119991, Russian Federation
| | - Maria Makarova
- A.N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, Vavilova St. 28, Moscow 119991, Russian Federation.,Higher Chemical College, Dmitry Mendeleev University of Chemical Technology of Russia, Miusskaya sq. 9, Moscow 125047, Russian Federation
| | - Denis Chusov
- A.N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, Vavilova St. 28, Moscow 119991, Russian Federation.,G.V. Plekhanov Russian University of Economics, 36 Stremyanny Per., Moscow 117997, Russia
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