1
|
Vijayakumar A, Manod M, Krishna RB, Mathew A, Mohan C. Diversely functionalized isoquinolines and their core-embedded heterocyclic frameworks: a privileged scaffold for medicinal chemistry. RSC Med Chem 2023; 14:2509-2534. [PMID: 38107174 PMCID: PMC10718595 DOI: 10.1039/d3md00248a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 08/23/2023] [Indexed: 12/19/2023] Open
Abstract
Isoquinoline-enrooted organic small-molecules represent a challenging molecular target in the organic synthesis arsenal attributed to their structural diversity and therapeutic importance. Into the bargain, isoquinolines are significant structural frameworks in modern medicinal chemistry and drug development. Consequently, synthetic organic and medicinal chemists have been intensely interested in efficient synthetic tactics for the sustainable construction of isoquinoline frameworks and their derivatives in enantiopure or racemic forms. This review accentuates an overview of the literature on the modern synthetic approaches exploited in synthesising isoquinolines and their core embedded heterocyclic skeletons from 2021 to 2022. In detail, the methodologies and inspected pharmacological studies for the array of diversely functionalized isoquinolines or their core-embedded heterocyclic/carbocyclic structures involving the introduction of substituents at C-1, C-3, and C-4 carbon and N-2 atom, bond constructions at the C1-N2 atom and C3-N2 atom, and structural scaffolding within isoquinoline compounds have been reviewed. This intensive study highlights the need for and relevance of relatively unexplored bioisosterism employing isoquinoline-based small-molecules in drug design.
Collapse
Affiliation(s)
- Archana Vijayakumar
- School of Chemical Sciences, Mahatma Gandhi University Kottayam 686560 India
| | - M Manod
- School of Chemical Sciences, Mahatma Gandhi University Kottayam 686560 India
| | - R Bharath Krishna
- Institute for Integrated Programmes and Research in Basic Sciences, Mahatma Gandhi University Kottayam 686560 India
| | - Abra Mathew
- School of Chemical Sciences, Mahatma Gandhi University Kottayam 686560 India
- Department of Chemistry, Indian Institute of Technology Palakkad Kerala 678577 India
| | - Chithra Mohan
- School of Chemical Sciences, Mahatma Gandhi University Kottayam 686560 India
| |
Collapse
|
2
|
Haidar AK, Kjeldsen ND, Troelsen NS, Previtali V, Lundquist KP, Larsen TO, Clausen MH. A Concise Total Synthesis of the Fungal Isoquinoline Alkaloid TMC-120B. Molecules 2022; 27:521. [PMID: 35056832 PMCID: PMC8779217 DOI: 10.3390/molecules27020521] [Citation(s) in RCA: 2] [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: 12/02/2021] [Revised: 12/23/2021] [Accepted: 12/28/2021] [Indexed: 12/13/2022] Open
Abstract
Recent reports of antiepileptic activity of the fungal alkaloid TMC-120B have renewed the interest in this natural product. Previous total syntheses of TMC-120B comprise many steps and have low overall yields (11-17 steps, 1.5-2.9% yield). Thus, to access this compound more efficiently, we herein present a concise and significantly improved total synthesis of the natural product. Our short synthesis relies on two key cyclization steps to assemble the central scaffold: isoquinoline formation via an ethynyl-imino cyclization and an intramolecular Friedel-Crafts reaction to form the furanone.
Collapse
Affiliation(s)
- Ahmad K. Haidar
- Center for Nanomedicine and Theranostics, Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800 Kongens Lyngby, Denmark; (A.K.H.); (N.S.T.); (V.P.); (K.P.L.)
| | | | - Nikolaj S. Troelsen
- Center for Nanomedicine and Theranostics, Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800 Kongens Lyngby, Denmark; (A.K.H.); (N.S.T.); (V.P.); (K.P.L.)
| | - Viola Previtali
- Center for Nanomedicine and Theranostics, Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800 Kongens Lyngby, Denmark; (A.K.H.); (N.S.T.); (V.P.); (K.P.L.)
| | - Kasper P. Lundquist
- Center for Nanomedicine and Theranostics, Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800 Kongens Lyngby, Denmark; (A.K.H.); (N.S.T.); (V.P.); (K.P.L.)
| | - Thomas O. Larsen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 221, 2800 Kongens Lyngby, Denmark;
| | - Mads H. Clausen
- Center for Nanomedicine and Theranostics, Department of Chemistry, Technical University of Denmark, Kemitorvet 207, 2800 Kongens Lyngby, Denmark; (A.K.H.); (N.S.T.); (V.P.); (K.P.L.)
| |
Collapse
|
3
|
Copmans D, Kildgaard S, Rasmussen SA, Ślęzak M, Dirkx N, Partoens M, Esguerra CV, Crawford AD, Larsen TO, de Witte PAM. Zebrafish-Based Discovery of Antiseizure Compounds from the North Sea: Isoquinoline Alkaloids TMC-120A and TMC-120B. Mar Drugs 2019; 17:md17110607. [PMID: 31731399 PMCID: PMC6891649 DOI: 10.3390/md17110607] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 10/19/2019] [Accepted: 10/21/2019] [Indexed: 12/14/2022] Open
Abstract
There is a high need for the development of new and improved antiseizure drugs (ASDs) to treat epilepsy. Despite the potential of marine natural products (MNPs), the EU marine biodiscovery consortium PharmaSea has made the only effort to date to perform ASD discovery based on large-scale screening of MNPs. To this end, the embryonic zebrafish photomotor response assay and the larval zebrafish pentylenetetrazole (PTZ) model were used to screen MNP extracts for neuroactivity and antiseizure activity, respectively. Here we report the identification of the two known isoquinoline alkaloids TMC-120A and TMC-120B as novel antiseizure compounds, which were isolated by bioactivity-guided purification from the marine-derived fungus Aspergillus insuetus. TMC-120A and TMC-120B were observed to significantly lower PTZ-induced seizures and epileptiform brain activity in the larval zebrafish PTZ seizure model. In addition, their structural analogues TMC-120C, penicisochroman G, and ustusorane B were isolated and also significantly lowered PTZ-induced seizures. Finally, TMC-120A and TMC-120B were investigated in a mouse model of drug-resistant focal seizures. Compound treatment significantly shortened the seizure duration, thereby confirming their antiseizure activity. These data underscore the possibility to translate findings in zebrafish to mice in the field of epilepsy and the potential of the marine environment for ASD discovery.
Collapse
Affiliation(s)
- Daniëlle Copmans
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Herestraat 49 box 824, 3000 Leuven, Belgium; (D.C.); (M.Ś.); (N.D.); (M.P.); (C.V.E.); (A.D.C.)
| | - Sara Kildgaard
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 221, 2800 Kgs. Lyngby, Denmark; (S.K.); (S.A.R.)
| | - Silas A. Rasmussen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 221, 2800 Kgs. Lyngby, Denmark; (S.K.); (S.A.R.)
| | - Monika Ślęzak
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Herestraat 49 box 824, 3000 Leuven, Belgium; (D.C.); (M.Ś.); (N.D.); (M.P.); (C.V.E.); (A.D.C.)
| | - Nina Dirkx
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Herestraat 49 box 824, 3000 Leuven, Belgium; (D.C.); (M.Ś.); (N.D.); (M.P.); (C.V.E.); (A.D.C.)
| | - Michèle Partoens
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Herestraat 49 box 824, 3000 Leuven, Belgium; (D.C.); (M.Ś.); (N.D.); (M.P.); (C.V.E.); (A.D.C.)
| | - Camila V. Esguerra
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Herestraat 49 box 824, 3000 Leuven, Belgium; (D.C.); (M.Ś.); (N.D.); (M.P.); (C.V.E.); (A.D.C.)
- Current affiliation: Centre for Molecular Medicine Norway, Faculty of Medicine, University of Oslo, Gaustadalléen 21, 0349 Oslo, Norway
| | - Alexander D. Crawford
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Herestraat 49 box 824, 3000 Leuven, Belgium; (D.C.); (M.Ś.); (N.D.); (M.P.); (C.V.E.); (A.D.C.)
- Current affiliation: Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Ullevålsveien 72, 0454 Oslo, Norway
| | - Thomas O. Larsen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 221, 2800 Kgs. Lyngby, Denmark; (S.K.); (S.A.R.)
- Correspondence: (T.O.L.); (P.A.M.-d.W.); Tel.: +45-4525-2632 (T.O.L.); +32-16-32-34-32 (P.A.M.-d.W.)
| | - Peter A. M. de Witte
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Herestraat 49 box 824, 3000 Leuven, Belgium; (D.C.); (M.Ś.); (N.D.); (M.P.); (C.V.E.); (A.D.C.)
- Correspondence: (T.O.L.); (P.A.M.-d.W.); Tel.: +45-4525-2632 (T.O.L.); +32-16-32-34-32 (P.A.M.-d.W.)
| |
Collapse
|
4
|
González-Menéndez V, Crespo G, de Pedro N, Diaz C, Martín J, Serrano R, Mackenzie TA, Justicia C, González-Tejero MR, Casares M, Vicente F, Reyes F, Tormo JR, Genilloud O. Fungal endophytes from arid areas of Andalusia: high potential sources for antifungal and antitumoral agents. Sci Rep 2018; 8:9729. [PMID: 29950656 PMCID: PMC6021435 DOI: 10.1038/s41598-018-28192-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 06/19/2018] [Indexed: 01/05/2023] Open
Abstract
Native plant communities from arid areas present distinctive characteristics to survive in extreme conditions. The large number of poorly studied endemic plants represents a unique potential source for the discovery of novel fungal symbionts as well as host-specific endophytes not yet described. The addition of adsorptive polymeric resins in fungal fermentations has been seen to promote the production of new secondary metabolites and is a tool used consistently to generate new compounds with potential biological activities. A total of 349 fungal strains isolated from 63 selected plant species from arid ecosystems located in the southeast of the Iberian Peninsula, were characterized morphologically as well as based on their ITS/28S ribosomal gene sequences. The fungal community isolated was distributed among 19 orders including Basidiomycetes and Ascomycetes, being Pleosporales the most abundant order. In total, 107 different genera were identified being Neocamarosporium the genus most frequently isolated from these plants, followed by Preussia and Alternaria. Strains were grown in four different media in presence and absence of selected resins to promote chemical diversity generation of new secondary metabolites. Fermentation extracts were evaluated, looking for new antifungal activities against plant and human fungal pathogens, as well as, cytotoxic activities against the human liver cancer cell line HepG2. From the 349 isolates tested, 126 (36%) exhibited significant bioactivities including 58 strains with exclusive antifungal properties and 33 strains with exclusive activity against the HepG2 hepatocellular carcinoma cell line. After LCMS analysis, 68 known bioactive secondary metabolites could be identified as produced by 96 strains, and 12 likely unknown compounds were found in a subset of 14 fungal endophytes. The chemical profiles of the differential expression of induced activities were compared. As proof of concept, ten active secondary metabolites only produced in the presence of resins were purified and identified. The structures of three of these compounds were new and herein are elucidated.
Collapse
Affiliation(s)
| | - Gloria Crespo
- Fundación MEDINA, Avda. del conocimiento 34, 18016, Granada, Spain
| | - Nuria de Pedro
- Fundación MEDINA, Avda. del conocimiento 34, 18016, Granada, Spain
| | - Caridad Diaz
- Fundación MEDINA, Avda. del conocimiento 34, 18016, Granada, Spain
| | - Jesús Martín
- Fundación MEDINA, Avda. del conocimiento 34, 18016, Granada, Spain
| | - Rachel Serrano
- Fundación MEDINA, Avda. del conocimiento 34, 18016, Granada, Spain
| | | | - Carlos Justicia
- Fundación MEDINA, Avda. del conocimiento 34, 18016, Granada, Spain
| | - M Reyes González-Tejero
- Departamento de Botánica, Facultad de Farmacia, Universidad de Granada, C/ Prof. Clavera, s/n, 18011, Granada, Spain
| | - M Casares
- Departamento de Botánica, Facultad de Farmacia, Universidad de Granada, C/ Prof. Clavera, s/n, 18011, Granada, Spain
| | | | - Fernando Reyes
- Fundación MEDINA, Avda. del conocimiento 34, 18016, Granada, Spain
| | - José R Tormo
- Fundación MEDINA, Avda. del conocimiento 34, 18016, Granada, Spain
| | - Olga Genilloud
- Fundación MEDINA, Avda. del conocimiento 34, 18016, Granada, Spain
| |
Collapse
|
5
|
Pergomet JL, Larghi EL, Kaufman TS, Bracca ABJ. First total synthesis of the only known 2-isopropyliden-2H-benzofuran-3-one isolated from V. luetzelburgii. RSC Adv 2017. [DOI: 10.1039/c6ra28587b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The first total synthesis of the unique isopropyliden-2H-benzofuran-3-one, isolated from Verbesina luetzelburgii, is reported in racemic and a chiral form.
Collapse
Affiliation(s)
- Jorgelina L. Pergomet
- Instituto de Química Rosario (IQUIR, CONICET-UNR)
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- S2002LRK Rosario
- Argentina
| | - Enrique L. Larghi
- Instituto de Química Rosario (IQUIR, CONICET-UNR)
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- S2002LRK Rosario
- Argentina
| | - Teodoro S. Kaufman
- Instituto de Química Rosario (IQUIR, CONICET-UNR)
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- S2002LRK Rosario
- Argentina
| | - Andrea B. J. Bracca
- Instituto de Química Rosario (IQUIR, CONICET-UNR)
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- S2002LRK Rosario
- Argentina
| |
Collapse
|
6
|
Xiao Z, Chen S, Cai R, Lin S, Hong K, She Z. New furoisocoumarins and isocoumarins from the mangrove endophytic fungus Aspergillus sp. 085242. Beilstein J Org Chem 2016; 12:2077-2085. [PMID: 27829913 PMCID: PMC5082600 DOI: 10.3762/bjoc.12.196] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Accepted: 09/08/2016] [Indexed: 01/22/2023] Open
Abstract
The chemical investigation of the mangrove endophytic fungus Aspergillus sp. 085242 afforded eight isocoumarin derivatives 1–8 and one isoquinoline 9. Asperisocoumarins A and B (1 and 2) were new furoisocoumarins, and asperisocoumarins E and F (5 and 6) were new isocoumarins. Their structures were established by analysis of their spectroscopic data and the absolute configuration of compound 2 was unambiguously determined by X-ray structure analysis and ECD calculation. Moreover, the absolute configurations of compounds 3–5 were assigned by comparison of their ECD spectra with isocoumarins described in the literature. Asperisocoumarins C and D (3 and 4) were fully characterized spectroscopically and isolated from a natural source for the first time. Asperisocoumarins A–D (1–4) related to the class of furo[3,2-h]isocoumarins are rarely occurring in natural sources. Compounds 2, 5, and 6 showed moderate α-glucosidase inhibitory activity with IC50 of 87.8, 52.3, and 95.6 μM, respectively. In addition, compounds 1 and 3 exhibited weak radical scavenging activity with EC50 values of 125 and 138 μM, respectively.
Collapse
Affiliation(s)
- Ze'en Xiao
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, No. 135 of Xingang West Road, Guangzhou, 510275, China.,Shenzhen Academy of Metrology and Quality Inspection, No. 144 of Minkan Road, Minzhi Street, Longhua District, Shenzhen, 518102, China
| | - Senhua Chen
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, No. 135 of Xingang West Road, Guangzhou, 510275, China
| | - Runlin Cai
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, No. 135 of Xingang West Road, Guangzhou, 510275, China
| | - Shao'e Lin
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, No. 135 of Xingang West Road, Guangzhou, 510275, China
| | - Kui Hong
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education of China, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Zhigang She
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, No. 135 of Xingang West Road, Guangzhou, 510275, China
| |
Collapse
|
7
|
Pergomet JL, Kaufman TS, Bracca ABJ. Expedient Approach to 6-Bromo-2-isopropylidenecoumaranone, a Potential Intermediate for the Synthesis of TMC-120B, Pseudodeflectusin, and Their Congeners. Helv Chim Acta 2016. [DOI: 10.1002/hlca.201500525] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jorgelina L. Pergomet
- Institute of Chemistry of Rosario (IQUIR, CONICET-UNR) and School of Biochemical and Pharmaceutical Sciences; National University of Rosario; Suipacha 531 S2002LRK Rosario Argentina
| | - Teodoro S. Kaufman
- Institute of Chemistry of Rosario (IQUIR, CONICET-UNR) and School of Biochemical and Pharmaceutical Sciences; National University of Rosario; Suipacha 531 S2002LRK Rosario Argentina
| | - Andrea B. J. Bracca
- Institute of Chemistry of Rosario (IQUIR, CONICET-UNR) and School of Biochemical and Pharmaceutical Sciences; National University of Rosario; Suipacha 531 S2002LRK Rosario Argentina
| |
Collapse
|
8
|
Hibino S. Synthetic Studies of Bioactive Heterocyclic Natural Products and Fused Heterocyclic Compounds Based on the Thermal Electrocyclic or Azaelectocyclic Reaction of 6π-Electron or Aza-6π-electron Systems. YAKUGAKU ZASSHI 2016; 136:607-48. [DOI: 10.1248/yakushi.15-00273] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Satoshi Hibino
- Graduate School of Pharmacy and Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University
| |
Collapse
|
9
|
Kuramochi K, Tsubaki K. Synthesis and structural characterization of natural benzofuranoids. JOURNAL OF NATURAL PRODUCTS 2015; 78:1056-1066. [PMID: 25906402 DOI: 10.1021/np5010483] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The synthesis of ustusoranes A, B, and E, pergillin, dihydropergillin, (±)-penicisochroman A, and (-)-brassicadiol, starting from optically active (R)-benzolactone, is described. The synthesis of ustusoranes A and E established the absolute configurations of these natural products. The synthesis of pergillin and (±)-penicisochroman A led to the structural revision of aspergiones E and F. This study clearly indicates that (R)-benzolactone is a potential intermediate in the synthesis of natural benzofuranoids.
Collapse
Affiliation(s)
- Kouji Kuramochi
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Sakyo-ku, Kyoto 606-8522, Japan
| | - Kazunori Tsubaki
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Sakyo-ku, Kyoto 606-8522, Japan
| |
Collapse
|
10
|
|
11
|
Affiliation(s)
- Navjeet Kaur
- a Department of Chemistry , Banasthali University , Banasthali , Rajasthan , India
| |
Collapse
|
12
|
Kuramochi K, Tsubaki K, Kuriyama I, Mizushina Y, Yoshida H, Takeuchi T, Kamisuki S, Sugawara F, Kobayashi S. Synthesis, structure, and cytotoxicity studies of some fungal isochromanes. JOURNAL OF NATURAL PRODUCTS 2013; 76:1737-1745. [PMID: 24033077 DOI: 10.1021/np400460m] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Ustusorane D and penicisochromans B-D are natural isochromans isolated from Aspergillus ustus 094102 and Penicillium sp. PSU-F40, respectively. Herein, we report the syntheses of (-)-ustusorane D and (+)-penicisochroman B and the structures of penicisochromans C and D. The relative configuration of natural ustusorane D and the absolute configuration of natural penicisochroman B were determined. Two plausible structures for penicisochroman C were evaluated through synthesis, but their ¹H and ¹³C NMR data were not in agreement with those of the natural product. The structural revision and the determination of the absolute configuration of natural penicisochroman D were achieved. Structure-activity relationship studies of the synthetic compounds as well as a series of related isochromans indicated that the enone of the furanone moiety was essential for the cytotoxicity of these compounds toward HCT116 human colon cancer cells. Pseudodeflectusin, the related natural isochroman, suppressed cell growth and induced apoptosis in HCT116 cells.
Collapse
Affiliation(s)
- Kouji Kuramochi
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University , Sakyo-ku, Kyoto 606-8522, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Simonetti SO, Larghi EL, Bracca ABJ, Kaufman TS. Angular tricyclic benzofurans and related natural products of fungal origin. Isolation, biological activity and synthesis. Nat Prod Rep 2013; 30:941-69. [PMID: 23719995 DOI: 10.1039/c3np70014c] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Naturally-occurring angular tricyclic benzofuran/isobenzofuran derivatives of fungal origin and related compounds, in which two heterocyclic rings are fused to a central benzenoid moiety, are covered. Emphasis is placed on the structure of the compounds, together with their relevant biological activities, source microorganisms, country or region of origin and environmental conditions. In addition, proposed biosynthetic pathways, as well as the total syntheses of some of the compounds, including those that lead to structural revision or to correct stereochemical assignments, and related synthetic efforts, are discussed in detail.
Collapse
Affiliation(s)
- Sebastián O Simonetti
- Instituto de Química Rosario-CONICET-UNR, Suipacha 531, S2002LRK, Rosario, SF, Argentina
| | | | | | | |
Collapse
|
14
|
Arfan M, Shaaban KA, Schüffler A, Laatsch H. Furanone Derivatives from Terrestrial Streptomyces spp. Nat Prod Commun 2012. [DOI: 10.1177/1934578x1200700925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Chemical investigation of the terrestrial Streptomyces sp. isolates GT2005/020 and ANK148 led to the isolation of two microbial furanone derivatives, 5-hydroxy-4-methylnaphtho[1,2-b]furan-3-one (1) and 4-hydroxy-5-methyl-furan-3-one (2), respectively, which have some similarity to quorum sensing molecules of the AI-2 type. In addition, the known compounds chalcomycin, ferulic acid, indole-3-acetic acid, uracil, thymine, 2′-deoxy-thymidin, monensin B (3), phencomycin, and 1-acetyl-β-carboline were isolated. The structures of 1 and 2 were deduced from extensive studies of NMR (1D and 2D) and mass spectra. Additionally, the complete NMR shift assignments for monensin B (3) using H-H COSY, HMQC and HMBC experiments are reported here for the first time. We are describing the taxonomy and fermentation of the producing strains, the structure elucidation of the new metabolites and their bioactivity.
Collapse
Affiliation(s)
- Muhammad Arfan
- Institute of Organic and Biomolecular Chemistry, University of Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany
| | - Khaled A. Shaaban
- Institute of Organic and Biomolecular Chemistry, University of Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany
| | - Anja Schüffler
- Institute of Biotechnology and Drug Research, D-67663 Kaiserslautern, Germany
| | - Hartmut Laatsch
- Institute of Organic and Biomolecular Chemistry, University of Göttingen, Tammannstrasse 2, D-37077 Göttingen, Germany
| |
Collapse
|
15
|
Simonetti SO, Larghi EL, Bracca ABJ, Kaufman TS. Synthesis of the unique angular tricyclic chromone structure proposed for aspergillitine, and its relationship with alkaloid TMC-120B. Org Biomol Chem 2012; 10:4124-34. [DOI: 10.1039/c2ob25067e] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
16
|
Zhou Y, Mándi A, Debbab A, Wray V, Schulz B, Müller WEG, Lin W, Proksch P, Kurtán T, Aly AH. New Austalides from the Sponge-Associated Fungus Aspergillus sp. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100670] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
17
|
Miller JD, Sun M, Gilyan A, Roy J, Rand TG. Inflammation-associated gene transcription and expression in mouse lungs induced by low molecular weight compounds from fungi from the built environment. Chem Biol Interact 2010; 183:113-24. [PMID: 19818335 DOI: 10.1016/j.cbi.2009.09.023] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2009] [Revised: 09/29/2009] [Accepted: 09/29/2009] [Indexed: 12/27/2022]
Abstract
Few metabolites from fungi found indoors have been tested for inflammatory mediators endpoints in primary cultures of alveolar macrophages or in vivo. In this study, mice were intratracheally instilled with a single dose comprising 4x10(-5)moletoxin/kg lung wt dose of either atranone C, brevianamide, cladosporin, mycophenolic acid, neoechinulin A & B, sterigmatocystin or TMC-120A. These toxins are from fungi common on damp building materials. The dose used was comparable to the estimated doses of possible human exposure. Hematoxylin and eosin (H&E) histology and Alcian Blue/Periodic Acid Schiff (AB/PAS) histochemistry were used to evaluate lungs for time course (4h and 12h post-exposure (PE)) inflammatory and toxic changes. Reverse-transcription (RT)-PCR based arrays were also employed to evaluate time course inflammation-associated gene transcription in lung tissues of the different toxins. Immunohistochemistry (IHC) was used to probe MIP-2 and Tnf-alpha protein expression in treatment lungs to determine whether responses correspond with gene transcription data. Both histology and histochemistry revealed that toxin exposed lungs at 12h PE showed evidence of inflammation. H&E revealed that bronchioli were lined with irregularly thickened and sometimes sloughing epithelium and bronchiolar spaces supported infiltration of leukocytes, cellular and mucus-like debris while alveolar spaces supported swollen macrophages and modest amorphous debris accumulations. All toxin-instilled lungs exhibited copious mucus production and alveolar macrophages with red stained cytoplasm on bronchiolar surfaces, especially at 12h PE. Array analysis of 83 inflammation-associated genes extracted from lung tissue demonstrated a number of patterns, compared to controls. 82 genes assayed at 4h PE and 75 genes at 12h PE were significantly altered (p< or =0.05; >or =1.5-fold or < or =-1.5-fold change) in the different treatment animal groups. Expression of transcriptionally regulated genes was confirmed using immunohistochemistry that demonstrated MIP-2 and Tnf-alpha staining in respiratory bronchiolar epithelia, alveolar macrophages and alveolar type II cells. The transcriptional regulation in these genes in the treatment groups suggests that they may serve central roles in the immunomodulation of toxin-induced pro-inflammatory lung responses. Hierarchical cluster analysis revealed significant patterns of gene transcription linking the response of the toxins at equimolar doses in three groups: (1) brevianamide, mycophenolic acid and neoechinulin B, (2) neoechinulin A and sterigmatocystin, and (3) cladosporin, atranone C and TMC-120. The results further confirm the inflammatory nature of metabolites/toxins from such fungi can contribute to the development of non-allergenic respiratory health effects.
Collapse
Affiliation(s)
- J D Miller
- Department of Chemistry, Carleton University, Ottawa, Ontario, Canada K1S 5B6
| | | | | | | | | |
Collapse
|
18
|
Lu Z, Wang Y, Miao C, Liu P, Hong K, Zhu W. Sesquiterpenoids and benzofuranoids from the marine-derived fungus Aspergillus ustus 094102. JOURNAL OF NATURAL PRODUCTS 2009; 72:1761-1767. [PMID: 19769341 DOI: 10.1021/np900268z] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Eight drimane sesquiterpenes (1-8), six isochromane derivatives (9-14), and three known compounds, daldinin B (15), 9alpha-hydroxy-6beta-[(2E,4E,6E)-octa-2,4,6-trienoyloxy]-5alpha-drim-7-en-11,12-olide (16), and pergillin (17), were isolated from the EtOAc extract of the marine-derived fungus Aspergillus ustus 094102. The structures of the new compounds were elucidated on the basis of spectroscopic analysis. The cytotoxic effects on A549 and HL-60 cell lines were evaluated by SRB and MTT methods. Ustusorane E (13) showed significant cytotoxicity against HL-60 cells with an IC50 value of 0.13 microM. Ustusolates C (6) and E (8) exhibited moderate cytotoxicity against A549 and HL-60 cells with IC50 values of 10.5 and 9.0 microM, respectively, and ustusolate A (4) showed weak cytotoxicity against HL-60 and A549 cells with IC50 values of 20.6 and 30.0 microM, respectively.
Collapse
Affiliation(s)
- Zhenyu Lu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
| | | | | | | | | | | |
Collapse
|
19
|
Slack GJ, Puniani E, Frisvad JC, Samson RA, Miller JD. Secondary metabolites from Eurotium species, Aspergillus calidoustus and A. insuetus common in Canadian homes with a review of their chemistry and biological activities. ACTA ACUST UNITED AC 2009; 113:480-90. [PMID: 19422073 DOI: 10.1016/j.mycres.2008.12.002] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
20
|
Appukkuttan P, Van der Eycken E. Microwave-Assisted Natural Product Chemistry. ACTA ACUST UNITED AC 2006. [DOI: 10.1007/128_051] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
|
21
|
Kumemura T, Choshi T, Hirata A, Sera M, Takahashi Y, Nobuhiro J, Hibino S. Synthesis of the New Furo[3,2-h]isoquinoline Alkaloid, TMC-120B from Aspergillus ustus. Chem Pharm Bull (Tokyo) 2005; 53:393-7. [PMID: 15802838 DOI: 10.1248/cpb.53.393] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A total synthesis of a new furo[3,2-h]isoquinoline alkaloid TMC120-B (2), isolated from Aspergillus ustus together with two related compounds, has been completed in sixteen steps. The key step is the synthesis of the appropriate 3,7,8-trisubstituted isoquinoline framework (23) based on a thermal electrocyclic reaction of the 1-aza 6pi-electron system involving the benzene double bond. In addition, the microwave assisted electrocyclic reaction of this system was newly performed.
Collapse
Affiliation(s)
- Teppei Kumemura
- Graduate School of Pharmacy and Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, Hiroshima
| | | | | | | | | | | | | |
Collapse
|
22
|
Hibino S, Kumemura T, Choshi T, Hirata A, Sera M, Takahashi Y, Nobuhiro J. A Total Synthesis of a New Type of Furo[3,2-h]isoquinoline Alkaloid, TMC-120B. HETEROCYCLES 2003. [DOI: 10.3987/com-03-s19] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|