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Ikeuchi K, Haraguchi S, Yamada H, Tanino K. Model Synthetic Study of Tutin, a Picrotoxane-Type Sesquiterpene: Stereoselective Construction of a cis-Fused 5,6-Ring Skeleton. Chem Pharm Bull (Tokyo) 2022; 70:435-442. [PMID: 35650040 DOI: 10.1248/cpb.c22-00083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Picrotoxinin, coriamyrtin, and tutin are representative natural products classified as picrotoxane-type sesquiterpenes and they function as strong neurotoxins. Because they possess a cis-fused 5,6-ring skeleton with a highly congested functionalization, organic chemistry researchers have pursued the development of a stereoselective synthesis method for such skeleton. This study aims to stereoselectively synthesize the cis-fused 5,6-ring skeleton with two tetrasubstituted carbons at both angular positions using a model compound. The results revealed that the desymmetrization of the 2-methyl-1,3-cyclopentanedione moiety via the DL-proline-mediated intramolecular aldol reaction of a pentanal derivative bearing an isopropenyl group and the five-membered ring at the 3- and 5-position, respectively, provided the desired cis-fused skeleton. This reaction can construct four contiguous stereogenic centers of the bicyclic skeleton with the two angular positions in good yield with high stereoselectivity. Further, this reaction was applied to the kinetic resolution of the racemate using L-proline, providing the enantiomeric pure aldol product with the desired skeleton. This method can be utilized for total synthesis of picrotoxane-type sesquiterpenes.
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2
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Organocatalyst Design for the Stereoselective Annulation towards Bicyclic Diketones and Analogues. Symmetry (Basel) 2022. [DOI: 10.3390/sym14020355] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The Wieland–Miescher ketone, Hajos–Parrish–Eder–Sauer–Wiechert ketone, and their analogues are bicyclic diketones essential as building blocks for the synthesis of several natural and bioactive molecules. For this reason, since 1971, when Hajos and Parrish and Eder, Sauer, and Wiechert reported the stereoselective synthesis of these compounds promoted by L-proline, numerous methodologies and organocatalysts have been studied over the years with the aim of identifying increasingly efficient asymmetrical syntheses of these bicyclic ketones. This review will outline the methodological and stereochemical features of the organocatalytic stereoselective synthesis of these bicyclic scaffolds based on the different organocatalysts employed from 1971 until today. Particular emphasis will be given to the structural features of the catalysts and to the reaction conditions.
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3
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Inomata K, Akahane Y. Asymmetric Intramolecular Aldol Reactions Mediated by Chiral Triamines Bearing a Pyrrolidine Scaffold to Provide a Wieland–Miescher Ketone. HETEROCYCLES 2022. [DOI: 10.3987/com-22-s(r)12] [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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Hagiwara H. Aspects in the Total Syntheses of Higher Terpenoids Starting From Wieland–Miescher Ketone and Its Derivative: A Review. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20925340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Synthetic studies of higher terpenoids starting from Wieland–Miescher ketone since 2012 have been compiled.
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Affiliation(s)
- Hisahiro Hagiwara
- Graduate School of Science and Technology, Niigata University, Nishi-Ku, Niigata, Japan
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5
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Costa de Oliveira R, Soares Pontes G, Kostyuk A, Coutinho Camargo GB, Dhyani A, Shvydenko T, Shvydenko K, Grafov A. Anticancer and Immunomodulatory Activities of a Novel Water-Soluble Derivative of Ellipticine. Molecules 2020; 25:molecules25092130. [PMID: 32370100 PMCID: PMC7248987 DOI: 10.3390/molecules25092130] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/21/2020] [Accepted: 04/22/2020] [Indexed: 12/26/2022] Open
Abstract
Cancer still remains a major public health concern around the world and the search for new potential antitumor molecules is essential for fighting the disease. This study evaluated the anticancer and immunomodulatory potential of the newly synthetized ellipticine derivate: sodium bromo-5,11-dimethyl-6H-pyrido[4,3-b]carbazole-7-sulfonate (Br-Ell-SO3Na). It was prepared by the chlorosulfonation of 9-bromoellipticine. The ellipticine-7-sulfonic acid itself is not soluble, but its saponification with sodium hydroxide afforded a water-soluble sodium salt. The cytotoxicity of Br-Ell-SO3Na was tested against cancerous (K562 cell line) and non-cancerous cells (Vero cell line and human peripheral blood mononuclear cells (PBMC)) using a Methylthiazoletetrazolium (MTT) assay. Cell cycle arrest was assessed by flow cytometry and the immunomodulatory activity was analyzed through an enzyme-linked immunosorbent assay (ELISA). The results showed that the Br-Ell-SO3Na molecule has specific anticancer activity (IC50 = 35 µM) against the K562 cell line, once no cytotoxicity effect was verified against non-cancerous cells. Cell cycle analysis demonstrated that K562 cells treated with Br-Ell-SO3Na were arrested in the phase S. Moreover, the production of IL-6 increased and the expression of IL-8 was inhibited in the human PBMC treated with Br-Ell-SO3Na. The results demonstrated that Br-Ell-SO3Na is a promising anticancer molecule attested by its noteworthy activity against the K562 tumor cell line and immunomodulatory activity in human PBMC cells.
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Affiliation(s)
- Regiane Costa de Oliveira
- Programa de Pós-Graduação em Hematologia, Universidade do Estado do Amazonas, Av. Djalma Batista, 3578-Flores, Manaus-AM, Brazil; (R.C.d.O.); (G.S.P.); (G.B.C.C.)
| | - Gemilson Soares Pontes
- Programa de Pós-Graduação em Hematologia, Universidade do Estado do Amazonas, Av. Djalma Batista, 3578-Flores, Manaus-AM, Brazil; (R.C.d.O.); (G.S.P.); (G.B.C.C.)
- Instituto Nacional de Pesquisas da Amazônia, Av. André Araújo, 2.936-Petrópolis-Manaus-AM, Brazil;
| | - Aleksandr Kostyuk
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska Str. 5, 02660 Kyiv, Ukraine; (A.K.); (K.S.)
| | - Gabriel B. Coutinho Camargo
- Programa de Pós-Graduação em Hematologia, Universidade do Estado do Amazonas, Av. Djalma Batista, 3578-Flores, Manaus-AM, Brazil; (R.C.d.O.); (G.S.P.); (G.B.C.C.)
| | - Anamika Dhyani
- Instituto Nacional de Pesquisas da Amazônia, Av. André Araújo, 2.936-Petrópolis-Manaus-AM, Brazil;
| | - Tetiana Shvydenko
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska Str. 5, 02660 Kyiv, Ukraine; (A.K.); (K.S.)
- JSC “Farmak”, Kyrylivska str. 63, 04080 Kyiv, Ukraine
- Correspondence:
| | - Kostiantyn Shvydenko
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska Str. 5, 02660 Kyiv, Ukraine; (A.K.); (K.S.)
- JSC “Farmak”, Kyrylivska str. 63, 04080 Kyiv, Ukraine
| | - Andriy Grafov
- Department of Chemistry, University of Helsinki, 00014 Helsinki, Finland;
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Inomata K, Akahane Y, Miura A. Alternative Chiral Preparations of a Swaminathan Ketone via Asymmetric Aldol Reactions Mediated by Chiral Amines Bearing a Pyrrolidine. HETEROCYCLES 2020. [DOI: 10.3987/com-19-14124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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7
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Kubono K, Matsumoto T, Taneda M. Crystal structure of 4-bromo- N-[(3,6-di- tert-butyl-9 H-carbazol-1-yl)methyl-idene]aniline. Acta Crystallogr E Crystallogr Commun 2019; 75:1429-1431. [PMID: 31636970 PMCID: PMC6775744 DOI: 10.1107/s2056989019012374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 09/05/2019] [Indexed: 12/04/2022]
Abstract
In the title compound, C27H29BrN2, the carbazole ring system is essentially planar, with an r.m.s. deviation of 0.0781 (16) Å. An intra-molecular N-H⋯N hydrogen bond forms an S(6) ring motif. One of the tert-butyl substituents shows rotational disorder over two sites with occupancies of 0.592 (3) and 0.408 (3). In the crystal, two mol-ecules are associated into an inversion dimer through a pair of C-H⋯π inter-actions. The dimers are further linked by another pair of C-H⋯π inter-actions, forming a ribbon along the c-axis direction. A C-H⋯π inter-action involving the minor disordered component and the carbazole ring system links the ribbons, generating a network sheet parallel to (100).
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Affiliation(s)
- Koji Kubono
- Division of Natural Sciences, Osaka Kyoiku University, Kashiwara, Osaka 582-8582, Japan
| | - Taisuke Matsumoto
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - Masatsugu Taneda
- Department of Science Education, Faculty of Education, Osaka Kyoiku University, Kashiwara, Osaka 582-8582, Japan
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Liu C, Bradshaw B, Maseras F, Bonjoch J, Besora M. Mechanistic Study on the Asymmetric Synthesis of the Wieland‐Miescher Ketone and Analogs. ChemCatChem 2019. [DOI: 10.1002/cctc.201900543] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chunhui Liu
- Institute of Chemical Research of Catalonia (ICIQ)The Barcelona Institute of Science and Technology. Avgda. Països Catalans, 16 Tarragona 43007 Spain
- School of Chemistry and Chemical EngineeringXuchang University of China No. 88 Bavi Road, Xuchang Henan 461000 P. R. China
| | - Ben Bradshaw
- Laboratori de Química Orgànica, Facultat de Farmàcia, IBUBUniversitat de Barcelona Avda. Joan XXIII, 27–31 Barcelona 08028 Spain
| | - Feliu Maseras
- Institute of Chemical Research of Catalonia (ICIQ)The Barcelona Institute of Science and Technology. Avgda. Països Catalans, 16 Tarragona 43007 Spain
- Departament de QuímicaUniversitat Autònoma de Barcelona Spain
| | - Josep Bonjoch
- Laboratori de Química Orgànica, Facultat de Farmàcia, IBUBUniversitat de Barcelona Avda. Joan XXIII, 27–31 Barcelona 08028 Spain
| | - Maria Besora
- Institute of Chemical Research of Catalonia (ICIQ)The Barcelona Institute of Science and Technology. Avgda. Països Catalans, 16 Tarragona 43007 Spain
- Departament Química Física i InorgànicaUniversitat Rovira i Virgili (URV) C/Marcel.lí Domingo s/n Tarragona 43007 Spain
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Rubio OH, Mazo SD, Monleón LM, Simón L, Temprano ÁG, Morán JR. A cleft type receptor which combines an oxyanion hole with electrostatic interactions. Org Biomol Chem 2017; 15:4571-4578. [PMID: 28497821 DOI: 10.1039/c7ob00679a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A receptor for carboxylic acids which combines an oxyanion-hole structure with electrostatic forces has been prepared. X-ray diffraction studies have been carried out to evaluate the geometry of both the free receptor and its associated species with several carboxylic acids and many different arrangements have been discovered for the H-bond pattern in the associated species.
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Affiliation(s)
- Omayra H Rubio
- Organic Chemistry Department, University of Salamanca, Plaza de los Caídos, 1-5, E-37008, Salamanca, Spain.
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10
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Cañellas S, Ayats C, Henseler AH, Pericàs MA. A Highly Active Polymer-Supported Catalyst for Asymmetric Robinson Annulations in Continuous Flow. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03286] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Santiago Cañellas
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Avda. Països Catalans 16, E-43007 Tarragona, Spain
| | - Carles Ayats
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Avda. Països Catalans 16, E-43007 Tarragona, Spain
| | - Andrea H. Henseler
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Avda. Països Catalans 16, E-43007 Tarragona, Spain
| | - Miquel A. Pericàs
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Avda. Països Catalans 16, E-43007 Tarragona, Spain
- Departament
de Química Inorgànica i Orgànica, Universitat de Barcelona, 08028 Barcelona, Spain
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11
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de Juan Fernández L, Fuentes de Arriba ÁL, Monleón LM, Rubio OH, Alcázar Montero V, Rubio LS, Morán JR. An Enantioselective Benzofuran-Based Receptor for Dinitrobenzoyl-Substituted Amino Acids. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501457] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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12
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Temprano ÁG, Monleón LM, Rubio OH, Rubio LS, Pérez AB, Sanz F, Morán JR. A highly selective receptor for zwitterionic proline. Org Biomol Chem 2016; 14:1325-31. [DOI: 10.1039/c5ob02387d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Enantioselective extraction of zwitterionic proline from water to chloroform has been achieved with a chiral apolar chromane receptor.
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Affiliation(s)
- Álvaro G. Temprano
- Organic Chemistry Department
- Plaza de los Caidos 1-5
- University of Salamanca
- 37008 Salamanca
- Spain
| | - Laura M. Monleón
- Organic Chemistry Department
- Plaza de los Caidos 1-5
- University of Salamanca
- 37008 Salamanca
- Spain
| | - Omayra H. Rubio
- Organic Chemistry Department
- Plaza de los Caidos 1-5
- University of Salamanca
- 37008 Salamanca
- Spain
| | - Luis Simón Rubio
- Organic Chemistry Department
- Plaza de los Caidos 1-5
- University of Salamanca
- 37008 Salamanca
- Spain
| | - Asunción B. Pérez
- Organic Chemistry Department
- Paseo Belen no. 7
- University of Valladolid
- 47011 Valladolid
- Spain
| | - Francisca Sanz
- X-Ray Diffraction Service
- Plaza de los Caidos 1-5
- University of Salamanca
- 37008 Salamanca
- Spain
| | - Joaquín R. Morán
- Organic Chemistry Department
- Plaza de los Caidos 1-5
- University of Salamanca
- 37008 Salamanca
- Spain
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13
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Herrero FG, Rubio OH, Monleón LM, Fuentes de Arriba ÁL, Rubio LS, Morán JR. A molecular receptor for zwitterionic phenylalanine. Org Biomol Chem 2016; 14:3906-12. [DOI: 10.1039/c6ob00490c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Extraction of zwitterionic phenylalanine from water to chloroform has been achieved with a chiral apolar benzofuran receptor.
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Affiliation(s)
| | - Omayra H. Rubio
- Organic Chemistry Department
- University of Salamanca
- 37008 Salamanca
- Spain
| | - Laura M. Monleón
- Organic Chemistry Department
- University of Salamanca
- 37008 Salamanca
- Spain
| | | | - Luís Simón Rubio
- Engineering Chemistry Department
- University of Salamanca
- 37008 Salamanca
- Spain
| | - Joaquín R. Morán
- Organic Chemistry Department
- University of Salamanca
- 37008 Salamanca
- Spain
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14
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Mal D, Roy J. A regioselective facile synthesis of furo[3,4-b]carbazolones: application to the total synthesis of mafaicheenamine E and claulansine D. Org Biomol Chem 2015; 13:6344-52. [DOI: 10.1039/c5ob00575b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
1-Hydroxycarbazole-2,3-dicarboxylates have been shown to undergo chemoselective reductive cyclization to furo[3,4-b]carbazolones with LiAlH4.
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Affiliation(s)
- Dipakranjan Mal
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Joyeeta Roy
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
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