1
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Hung TQ, Nguyen BCQ, Phuc BV, Dang Van TD, Trang CM, Anh QTK, Do DV, Nguyen H, Ngo QA, Dang TT. Facile access to 5 H-thiazolo[2',3':2,3]imidazo[4,5- b]indole derivatives by two-fold Cu-catalysed C-N coupling reactions. Org Biomol Chem 2023; 21:8813-8818. [PMID: 37889185 DOI: 10.1039/d3ob01515g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
In four simple steps, a series of 5H-thiazolo[2',3':2,3]imidazo[4,5-b]indole and 11H-benzo[4',5']thiazolo[2',3':2,3]imidazo[4,5-b]indole derivatives were prepared with high yields. The key step in this procedure was demonstrated to be two-fold Cu-catalysed C-N coupling reactions of 5-bromo-6-(2-bromophenyl)imidazo[2,1-b]thiazole and 3-bromo-2-(2-bromophenyl)benzo[d]imidazo[2,1-b]thiazole with various amines.
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Affiliation(s)
- Tran Quang Hung
- Institute of Chemistry, Vietnam Academy of Science and Technology, Viet Nam.
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Viet Nam
| | - Bao Chi Quang Nguyen
- Faculty of Chemistry, Hanoi University of Science, Vietnam National University (VNU), Viet Nam.
| | - Ban Van Phuc
- Institute of Chemistry, Vietnam Academy of Science and Technology, Viet Nam.
| | - Tien Dat Dang Van
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Viet Nam
| | - Chu Mai Trang
- Faculty of Chemistry, Hanoi University of Science, Vietnam National University (VNU), Viet Nam.
| | - Quang Thi Kim Anh
- Faculty of Chemistry, Hanoi University of Science, Vietnam National University (VNU), Viet Nam.
| | - Dang Van Do
- Faculty of Chemistry, Hanoi University of Science, Vietnam National University (VNU), Viet Nam.
| | - Hien Nguyen
- Faculty of Chemistry, Hanoi National University of Education (HNUE), Viet Nam
| | - Quoc Anh Ngo
- Institute of Chemistry, Vietnam Academy of Science and Technology, Viet Nam.
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Viet Nam
| | - Tuan Thanh Dang
- Faculty of Chemistry, Hanoi University of Science, Vietnam National University (VNU), Viet Nam.
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2
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Gomaa MAM, Hassan DK. Catalyst-free direct synthesis of indeno[1,2- b]indol-5(4b H)-yl benzimidamides. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2023. [DOI: 10.1515/znb-2022-0137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Abstract
A new series of indeno[1,2-b]indol-5(4bH)-ylbenzimidamide derivatives 3a–3j has been synthesized as potential casein kinase II (CK2) inhibitors. A convenient and straightforward synthesis protocol was used via a reaction of β-enaminones 1a–1j with ninhydrin 2. This transformation proceeds under mild conditions (boiling ethanol, 0.5 h) in absence of catalyst in good to excellent yields (66–86%). The new compounds have been characterized by NMR, HRMS and IR spectra.
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Affiliation(s)
- Mohsen A.-M. Gomaa
- Chemistry Department , Faculty of Science, Minia University , Minia 61519 , A. R. Egypt
| | - Doaa K. Hassan
- Chemistry Department , Faculty of Science, Minia University , Minia 61519 , A. R. Egypt
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3
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Construction of novel penta cyclic indolo-furo[3,2-c]quinoline and dihydrochromeno-furo[2,3-b]indol via sequential annulation strategy. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Bae EJ, Jo H, Kim SS, Shin DS, Yang JY, Bae MA, Jeong P, Park CS, Ahn JH. Novel Thioxothiazolo[3,4- a]quinazolin-5(4 H)-one Derivatives as BK Ca Channel Activators for Urinary Incontinence. ACS Med Chem Lett 2022; 13:1052-1061. [DOI: 10.1021/acsmedchemlett.2c00070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Affiliation(s)
- Eun Jung Bae
- Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
| | - Heeji Jo
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
| | - Seong Soon Kim
- Bio & Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
| | - Dae-Seop Shin
- Bio & Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
| | - Jung Yoon Yang
- Bio & Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
| | - Myung Ae Bae
- Bio & Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea
| | - Pyeonghwa Jeong
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Chul-Seung Park
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
| | - Jin Hee Ahn
- Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
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5
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Zare M, Moradi L. Preparation and Modification of Magnetic Mesoporous Silica-Alumina Composites as Green Catalysts for the Synthesis of Some Indeno[1,2-b]Indole-9,10-Dione Derivatives in Water Media. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.1987935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Mina Zare
- Faculty of Chemistry, Department of Organic Chemistry, University of Kashan, Kashan, Iran
| | - Leila Moradi
- Faculty of Chemistry, Department of Organic Chemistry, University of Kashan, Kashan, Iran
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6
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Amiri Z, Bayat M. Synthesis of acenaphtho[1',2':4,5]pyrrolo[2,3-d]pyrimidine derivatives via one-pot three-component reaction. MONATSHEFTE FUR CHEMIE 2021. [DOI: 10.1007/s00706-021-02836-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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7
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Gein VL, Nosova NV, Yankin AN, Bazhina AY, Dmitriev MV. An Eco-Friendly Stereoselective Synthesis of Novel Derivatives of Indeno[1,2- b]Pyrrole and Indeno[1,2- c]Pyridazine. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2019.1602061] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | | | - Andrei N. Yankin
- St. Petersburg State University, St. Petersburg, Russian Federation
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8
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Shan XH, Yang B, Qu JP, Kang YB. CuSO 4-Catalyzed dual annulation to synthesize O, S or N-containing tetracyclic heteroacenes. Chem Commun (Camb) 2020; 56:4063-4066. [PMID: 32162642 DOI: 10.1039/d0cc01172j] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In this work, CuSO4 is utilized as a practical redox catalyst for tandem dual annulation in the synthesis of indole-fused tetracyclic heteroacenes, which are important skeletons in both medicinal chemistry and materials chemistry. The preparation of such skeletons in a convenient and efficient manner is in high demand. This method realizes the modular synthesis of benzofuro-, benzothieno-, and indoloindoles from abundant feedstocks such as 2-halobenzyl halides and nitrile derivatives in up to 99% yields, providing a rapid access to diverse indole-fused heteroacenes with biological or optoelectronic properties.
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Affiliation(s)
- Xiang-Huan Shan
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Bo Yang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Jian-Ping Qu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yan-Biao Kang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
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9
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Chen J, Han X, Lu X. Palladium(II)-catalyzed tandem cyclization of 2-ethynylaniline tethered cinnamyl acetate for the synthesis of indenoindoles. Org Biomol Chem 2020; 18:8850-8853. [PMID: 33119022 DOI: 10.1039/d0ob01975e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A palladium(ii)-catalyzed cyclization of 2-ethynylaniline tethered cinnamyl acetate involving aminopalladation/alkene insertion/β-acetoxy elimination cascade processes was established. The new protocol provides efficient access to indenoindoles in moderate to good yields under mild conditions.
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Affiliation(s)
- Junjie Chen
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China.
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10
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Nifant'ev IE, Ivchenko PV. Synthesis of Heteroarene‐Fused Cyclopentadienes and Related Compounds Suitable for Metallocene Preparation. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000178] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Ilya E. Nifant'ev
- A.V. Topchiev Institute of Petrochemical Synthesis RAS Leninsky pr. 22 119991 Moscow Russian Federation
- Department of Chemistry M.V. Lomonosov Moscow University Leninskie gory 1–3 119991 Moscow Russian Federation
| | - Pavel V. Ivchenko
- A.V. Topchiev Institute of Petrochemical Synthesis RAS Leninsky pr. 22 119991 Moscow Russian Federation
- Department of Chemistry M.V. Lomonosov Moscow University Leninskie gory 1–3 119991 Moscow Russian Federation
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11
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Rezvanian A, Mahmoodi F, Zadsirjan V, Salimi M, Heravi MM. Efficient and Uncatalyzed Synthesis of Highly Functionalized New Symmetrical Indeno[1,2‐
b
]pyrroles via a One‐Pot Four‐Component Reaction. ChemistrySelect 2020. [DOI: 10.1002/slct.201904860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Atieh Rezvanian
- Department of Chemistry, School of ScienceAlzahra University, POBox 1993891176 Vanak, Tehran Iran
| | - Fahame Mahmoodi
- Department of Chemistry, School of ScienceAlzahra University, POBox 1993891176 Vanak, Tehran Iran
| | - Vahideh Zadsirjan
- Department of Chemistry, School of ScienceAlzahra University, POBox 1993891176 Vanak, Tehran Iran
| | - Mehri Salimi
- Department of Chemistry, School of ScienceAlzahra University, POBox 1993891176 Vanak, Tehran Iran
| | - Majid M. Heravi
- Department of Chemistry, School of ScienceAlzahra University, POBox 1993891176 Vanak, Tehran Iran
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12
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Sharma S, Sharma H, Sharma S, Paul S, Gupta VK, Boukabcha N, Chouaih A. Triflic Acid Functionalized Carbon@Silica Composite: Synthesis and Applications in Organic Synthesis; DFT Studies of Indeno[1,2‐b]indole. ChemistrySelect 2020. [DOI: 10.1002/slct.201904727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shally Sharma
- Department of ChemistryUniversity of Jammu Jammu Tawi 180006 India
| | - Harsha Sharma
- Department of ChemistryUniversity of Jammu Jammu Tawi 180006 India
| | - Sukanya Sharma
- Department of ChemistryUniversity of Jammu Jammu Tawi 180006 India
| | - Satya Paul
- Department of ChemistryUniversity of Jammu Jammu Tawi 180006 India
| | - Vivek K. Gupta
- X-Ray Crystallography Laboratory, Post-graduate Department of PhysicsUniversity of Jammu Jammu Tawi 180006 India
| | - Nordine Boukabcha
- Laboratory of Technology and Solid Properties (LTPS)Abdelhamid Ibn Badis University, BP227 Mostaganem 27000 Algeria
| | - Abdelkader Chouaih
- Laboratory of Technology and Solid Properties (LTPS)Abdelhamid Ibn Badis University, BP227 Mostaganem 27000 Algeria
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13
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Do HH, Ullah S, Villinger A, Lecka J, Sévigny J, Ehlers P, Iqbal J, Langer P. Palladium-catalyzed synthesis and nucleotide pyrophosphatase inhibition of benzo[4,5]furo[3,2- b]indoles. Beilstein J Org Chem 2019; 15:2830-2839. [PMID: 31807218 PMCID: PMC6880817 DOI: 10.3762/bjoc.15.276] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 11/12/2019] [Indexed: 01/22/2023] Open
Abstract
A two-step palladium-catalyzed procedure based on Suzuki–Miyaura cross coupling, followed by a double Buchwald–Hartwig reaction, allows for the synthesis of pharmaceutically relevant benzo[4,5]furo[3,2-b]indoles in moderate to very good yield. The synthesized compounds have been analyzed with regard to their inhibitory activity (IC50) of nucleotide pyrophosphatases h-NPP1 and h-NPP3. The activity lies in the nanomolar range. The results were rationalized based on docking studies.
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Affiliation(s)
- Hoang Huy Do
- Institut für Chemie, Universität Rostock, Albert Einstein Str. 3a, 18059 Rostock, Germany.,Faculty of Chemistry, VNU Hanoi University of Science, 19 Le Thanh Tong, Hoan Kiem, Hanoi, 110403, Vietnam
| | - Saif Ullah
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad Campus, Abbottabad-22060, Pakistan
| | - Alexander Villinger
- Institut für Chemie, Universität Rostock, Albert Einstein Str. 3a, 18059 Rostock, Germany
| | - Joanna Lecka
- Département de microbiologie-infectiologie et d'immunologie, Faculté de Médecine, Université Laval, Québec, QC, G1V 0A6, Canada.,Centre de Recherche du CHU de Québec - Université Laval, Québec, QC, G1V 4G2, Canada
| | - Jean Sévigny
- Département de microbiologie-infectiologie et d'immunologie, Faculté de Médecine, Université Laval, Québec, QC, G1V 0A6, Canada.,Centre de Recherche du CHU de Québec - Université Laval, Québec, QC, G1V 4G2, Canada
| | - Peter Ehlers
- Institut für Chemie, Universität Rostock, Albert Einstein Str. 3a, 18059 Rostock, Germany.,Leibniz-Institut für Katalyse an der Universität Rostock e.V., Albert Einstein Str. 29a, 18059 Rostock, Germany
| | - Jamshed Iqbal
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad Campus, Abbottabad-22060, Pakistan
| | - Peter Langer
- Institut für Chemie, Universität Rostock, Albert Einstein Str. 3a, 18059 Rostock, Germany.,Leibniz-Institut für Katalyse an der Universität Rostock e.V., Albert Einstein Str. 29a, 18059 Rostock, Germany
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14
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Komogortsev AN, Lichitsky BV, Tretyakov AD, Fakhrutdinov AN, Dudinov AA, Krayushkin MM. New approach to the synthesis of substituted 7
H
‐furo[3,2‐
b
]pyran‐7‐ones based on 5‐hydroxy‐2‐methyl‐4
H
‐pyran‐4‐one derivatives. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3706] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Andrey N. Komogortsev
- N.D. Zelinsky Institute of Organic ChemistryRussian Academy of Sciences Moscow Russia
| | - Boris V. Lichitsky
- N.D. Zelinsky Institute of Organic ChemistryRussian Academy of Sciences Moscow Russia
| | | | - Artem N. Fakhrutdinov
- N.D. Zelinsky Institute of Organic ChemistryRussian Academy of Sciences Moscow Russia
| | - Arkady A. Dudinov
- N.D. Zelinsky Institute of Organic ChemistryRussian Academy of Sciences Moscow Russia
| | - Michail M. Krayushkin
- N.D. Zelinsky Institute of Organic ChemistryRussian Academy of Sciences Moscow Russia
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15
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Dai C, Xie Z, Qing X, Luo N, Wang C. DBU-mediated annulation of 2-aryl-3-nitro-2H-chromenes with 1,3-cyclohexanediones for the synthesis of benzofuro[2,3-c]chromenone derivatives. Mol Divers 2019; 24:191-200. [PMID: 30905029 DOI: 10.1007/s11030-019-09939-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 03/08/2019] [Indexed: 11/26/2022]
Abstract
The DBU-mediated annulations of 2-aryl-3-nitro-2H-chromenes with 1,3-cyclohexanediones have been developed. This reaction involves a highly efficient domino sequence consisting of regioselective intermolecular Michael addition, intramolecular nucleophilic addition and aromatization as key unit steps. The reaction appears to be general for a variety of 2-aryl-3-nitro-2H-chromenes and tolerates the presence of aromatic moieties with electron-withdrawing and electron-donating substituents. This transformation provides a straightforward synthetic protocol for constructing benzofuro[2,3-c]chromenone derivatives.
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Affiliation(s)
- Chenlu Dai
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou, 225002, People's Republic of China
| | - Zengyang Xie
- College of Basic Medicine, Jining Medical University, Jining, 272067, People's Republic of China
| | - Xushun Qing
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou, 225002, People's Republic of China
| | - Naili Luo
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou, 225002, People's Republic of China
| | - Cunde Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou, 225002, People's Republic of China.
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16
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Safari J, Hosseini Nasab N. Fe3O4 magnetic nanoparticles in the layers of montmorillonite as a valuable heterogeneous nanocatalyst for the one-pot synthesis of indeno[1,2-b]indolone derivatives in aqueous media. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3659-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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17
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Banerji B, Chatterjee S, Chandrasekhar K, Ghosh S, Mukherjee K, Mandal C. Detection of Lysosome by a Fluorescent Heterocycle: Development of Fused Pyrido–Imidazo–Indole Framework via Cu-Catalyzed Tandem N-Arylation. J Org Chem 2018; 83:13011-13018. [DOI: 10.1021/acs.joc.8b01513] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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18
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Hoang HD, Janke J, Amirjanyan A, Ghochikyan T, Flader A, Villinger A, Ehlers P, Lochbrunner S, Surkus AE, Langer P. Synthesis of furo[3,2-b:4,5-b']diindoles and their optical and electrochemical properties. Org Biomol Chem 2018; 16:6543-6551. [PMID: 30168561 DOI: 10.1039/c8ob01737a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient two-step palladium catalyzed synthesis of furo[3,2-b:4,5-b']diindoles, a hitherto unknown symmetrical heterocyclic core structure, was developed. The synthesis is based on a regioselective Suzuki-Miyaura cross coupling reaction of tetrabromofuran and subsequent double N-arylation. Selected compounds were studied with regard to their optical and electrochemical properties. The compounds show fluorescence with high quantum yields and non-reversible oxidation events. The compounds possess similar HOMO-LUMO band gaps compared to their sulfur and nitrogen analogs. Variation of the substituents hardly affects the HOMO-LUMO gap, but allows for some fine-tuning of the electron affinity and ionization potential as well as quantum yields. The compounds prepared represent interesting candidates for the development of organic electronic materials.
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Affiliation(s)
- Huy Do Hoang
- Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059 Rostock, Germany.
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19
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Jamaledini A, Mohammadizadeh MR. A practical one-pot three-component procedure for preparation of 3a,8a-dihydroxyindeno[1,2- d
]imidazole derivatives in aqueous ethanol. HETEROATOM CHEMISTRY 2018. [DOI: 10.1002/hc.21417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Azar Jamaledini
- Department of Chemistry; Faculty of Sciences; Persian Gulf University; Bushehr Iran
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20
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Rahimi F, Hosseini H, Bayat M. A one-pot three-component approach to synthesis of novel dihydroxyoxoindeno[1,2- b ]pyrrole derivatives. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.01.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Matsuda T, Ito H. Synthesis of indole-fused heteroacenes by cascade cyclisation involving rhodium(ii)-catalysed intramolecular C–H amination. Org Biomol Chem 2018; 16:6703-6707. [DOI: 10.1039/c8ob01837e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Indole-fused heteroacenes have been synthesised from cascade cyclisation of 2-[(2-azidophenyl)ethynyl]anilines and -phenols in a catalytic manner under redox-neutral conditions.
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Affiliation(s)
- Takanori Matsuda
- Department of Applied Chemistry
- Tokyo University of Science
- Tokyo 162-8601
- Japan
| | - Hirotaka Ito
- Department of Applied Chemistry
- Tokyo University of Science
- Tokyo 162-8601
- Japan
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22
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A regioselective synthesis of pentacyclic compounds containing coumarin, pyrrole, indene without catalysts under microwave irradiation. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2016.04.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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23
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Fan W, Li YR, Li Q, Jiang B, Li G. Domino reactions of cyclic enaminones leading to selective synthesis of pentacyclic indoles and its functionalization. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.06.058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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24
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El-Sayed MT, Mahmoud K, Hilgeroth A, Fakhr IMI. Synthesis of Novel Indolo-Spirocyclic Compounds. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2402] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mardia T. El-Sayed
- Martin Luther University; Institute of Pharmacy, Research Group of Drug Development and Analysis; Wolfgang-Langenbeck-Straße 4 06120 Halle (Saale) Germany
- Applied Organic Chemistry Department; National Research Centre; Cairo Egypt
| | - Kazem Mahmoud
- Martin Luther University; Institute of Pharmacy, Research Group of Drug Development and Analysis; Wolfgang-Langenbeck-Straße 4 06120 Halle (Saale) Germany
| | - Andreas Hilgeroth
- Martin Luther University; Institute of Pharmacy, Research Group of Drug Development and Analysis; Wolfgang-Langenbeck-Straße 4 06120 Halle (Saale) Germany
| | - Issa M. I. Fakhr
- Applied Organic Chemistry Department; National Research Centre; Cairo Egypt
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25
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Tomakinian T, Guillot R, Kouklovsky C, Vincent G. Synthesis of benzofuro[3,2-b]indoline amines via deamination-interrupted Fischer indolization and their unexpected reactivity towards nucleophiles. Chem Commun (Camb) 2016; 52:5443-6. [DOI: 10.1039/c6cc00365f] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the access to the benzofuro[3,2-b]indoline framework via an interrupted Fischer indolization and its unexpected reactivity towards allyl nucleophiles.
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Affiliation(s)
- Terry Tomakinian
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO)
- Equipe Méthodologie
- Synthèse et Molécules Thérapeutiques (MS&MT)
- Univ Paris Sud
- CNRS
| | - Régis Guillot
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO)
- Equipe Méthodologie
- Synthèse et Molécules Thérapeutiques (MS&MT)
- Univ Paris Sud
- CNRS
| | - Cyrille Kouklovsky
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO)
- Equipe Méthodologie
- Synthèse et Molécules Thérapeutiques (MS&MT)
- Univ Paris Sud
- CNRS
| | - Guillaume Vincent
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO)
- Equipe Méthodologie
- Synthèse et Molécules Thérapeutiques (MS&MT)
- Univ Paris Sud
- CNRS
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Chen X, Liu Y. Lactic acid-catalyzed fusion of ninhydrin and enamines for the solvent-free synthesis of hexahydroindeno[1,2-b]indole-9,10-diones. HETEROCYCL COMMUN 2016. [DOI: 10.1515/hc-2016-0048] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
AbstractThe lactic acid-catalyzed reactions of ninhydrin and secondary enaminones were conducted by solvent-free grinding at room temperature to yield polycyclic 4b,9b-dihydroxy-4b,5,6,7,8,9b-hexahydroindeno[1,2-
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Choi BR, Soni KK, Zhang LT, Lee SW, So I, Kim HK, Park JK. Effect of 4-chloro-7-trifluoromethyl-10H-benzo[4,5]furo[3,2-b]indole-1-carboxylic acid on the intraurethral pressure in a rat model of benign prostatic hyperplasia. Int J Urol 2015; 23:259-65. [PMID: 26646436 DOI: 10.1111/iju.13018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Accepted: 10/22/2015] [Indexed: 12/15/2022]
Abstract
OBJECTIVES To investigate the effect of 4-chloro-7-trifluoromethyl-10H-benzo[4,5]furo[3,2-b]indole-1-carboxylic acid, a new benzofuroindole derivative, on the intraurethral pressure in a rat model of benign prostatic hyperplasia. METHODS Benign prostatic hyperplasia was induced by testosterone and 17β-estradiol, which were administered intramuscularly once a day for 12 weeks. The effects of 4-chloro-7-trifluoromethyl-10H-benzo[4,5]furo[3,2-b]indole-1-carboxylic acid and tamsulosin on the intraurethral pressure induced by the electrostimulation of hypogastric nerves after a single intravenous injection of 4-chloro-7-trifluoromethyl-10H-benzo[4,5]furo[3,2-b]indole-1-carboxylic acid (10 mg/kg) or tamsulosin (10 μg/kg) were evaluated in a benign prostatic hyperplasia model. The electrostimulation-induced intraurethral pressure was measured just before and after the injection of 4-chloro-7-trifluoromethyl-10H-benzo[4,5]furo[3,2-b]indole-1-carboxylic acid. Bodyweight and genitourinary organ weights were recorded, and serums and tissues were subjected to hormone assays and histopathology. In addition, the expression of α1-adrenoceptors in the prostate was measured by western blotting. RESULTS The benign prostatic hyperplasia groups showed increased prostatic index, increased concentrations of testosterone, free testosterone and estradiol in serum, and increased epithelial thickness of the prostate. An injection of 4-chloro-7-trifluoromethyl-10H-benzo[4,5]furo[3,2-b]indole-1-carboxylic acid or tamsulosin significantly inhibited the elevation of electrostimulation-induced intraurethral pressure. In addition, 4-chloro-7-trifluoromethyl-10H-benzo[4,5]furo[3,2-b]indole-1-carboxylic acid did not cause a significant change in the blood pressure compared with tamsulosin. While the benign prostatic hyperplasia group showed increased the expression of α1-adrenoceptors, the 4-chloro-7-trifluoromethyl-10H-benzo[4,5]furo[3,2-b]indole-1-carboxylic acid or tamsulosin injection into a rat model of benign prostatic hyperplasia decreased the expression of α1-adrenoceptors. CONCLUSIONS These findings show that 4-chloro-7-trifluoromethyl-10H-benzo[4,5]furo[3,2-b]indole-1-carboxylic acid might be beneficial for lowering the intraurethral pressure associated with benign prostatic hyperplasia, and it could represent a therapeutic option for benign prostatic hyperplasia patients.
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Affiliation(s)
- Bo Ram Choi
- Department of Urology, Chonbuk National University and Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute and Clinical Trial Center of Medical Device of Chonbuk National University, Jeonju, Korea
| | - Kiran Kumar Soni
- Department of Urology, Chonbuk National University and Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute and Clinical Trial Center of Medical Device of Chonbuk National University, Jeonju, Korea
| | - Li Tao Zhang
- Department of Urology, Chonbuk National University and Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute and Clinical Trial Center of Medical Device of Chonbuk National University, Jeonju, Korea
| | - Sung Won Lee
- Department of Urology, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Insuk So
- Department of Physiology and Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hye Kyung Kim
- Department of Urology, Chonbuk National University and Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute and Clinical Trial Center of Medical Device of Chonbuk National University, Jeonju, Korea
| | - Jong Kwan Park
- Department of Urology, Chonbuk National University and Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute and Clinical Trial Center of Medical Device of Chonbuk National University, Jeonju, Korea
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Truong MA, Nakano K. Synthesis of Benzofuro- and Indolo[3,2-b]indoles via Palladium-Catalyzed Double N-Arylation and Their Physical Properties. J Org Chem 2015; 80:11566-72. [DOI: 10.1021/acs.joc.5b02086] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Minh Anh Truong
- Department of Organic and
Polymer Materials Chemistry, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Koji Nakano
- Department of Organic and
Polymer Materials Chemistry, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
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Boominathan SSK, Wang JJ. A Palladium- and Copper-Catalyzed Synthesis of Dihydro[1,2-b]indenoindole-9-ol and Benzofuro[3,2-b]indolines: Metal-Controlled Intramolecular CC and CO Bond-Forming Reactions. Chemistry 2015; 21:17044-50. [DOI: 10.1002/chem.201503210] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Indexed: 11/11/2022]
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Chen XB, Luo TB, Gou GZ, Wang J, Liu W, Lin J. Selective Synthesis of Acenaphtho[1,2-b]indole Derivatives via Tandem Regioselective Aza-Ene Addition/N-Cyclization/SN1 Type Reaction. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500159] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Xue-Bing Chen
- Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan Province; School of Science; Honghe University, Mengzi; Yunnan 661199 P. R. China
- Key Laboratory of Medicinal Chemistry for Natural Resources (Yunnan University); Ministry of Education; School of Chemical Science and Technology; Yunnan University; Kunming 650091 PR China
| | - Ting-Bi Luo
- Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan Province; School of Science; Honghe University, Mengzi; Yunnan 661199 P. R. China
| | - Gao-Zhang Gou
- Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan Province; School of Science; Honghe University, Mengzi; Yunnan 661199 P. R. China
| | - Jing Wang
- Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan Province; School of Science; Honghe University, Mengzi; Yunnan 661199 P. R. China
| | - Wei Liu
- Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan Province; School of Science; Honghe University, Mengzi; Yunnan 661199 P. R. China
| | - Jun Lin
- Key Laboratory of Natural Pharmaceutical and Chemical Biology of Yunnan Province; School of Science; Honghe University, Mengzi; Yunnan 661199 P. R. China
- Key Laboratory of Medicinal Chemistry for Natural Resources (Yunnan University); Ministry of Education; School of Chemical Science and Technology; Yunnan University; Kunming 650091 PR China
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Lobo G, Monasterios M, Rodrigues J, Gamboa N, Capparelli MV, Martínez-Cuevas J, Lein M, Jung K, Abramjuk C, Charris J. Synthesis, crystal structure and effect of indeno[1,2-b]indole derivatives on prostate cancer in vitro. Potential effect against MMP-9. Eur J Med Chem 2015; 96:281-95. [DOI: 10.1016/j.ejmech.2015.04.023] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 04/08/2015] [Accepted: 04/09/2015] [Indexed: 01/03/2023]
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Sung HH, Choo SH, Han DH, Chae MR, Kang SJ, Park CS, So I, Park JK, Lee SW. Effect of the novel BKCa channel opener LDD175 on the modulation of corporal smooth muscle tone. J Sex Med 2014; 12:29-38. [PMID: 25385091 DOI: 10.1111/jsm.12744] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
INTRODUCTION The BKCa channel has been reported to play an important role in erectile function. Recently, novel BKCa channel activator, LDD175, was introduced. AIM This study aims to investigate whether LDD175 relaxes corporal smooth muscle (CSM) via BKCa channel activation. METHODS After isolation of CSM strip from a male rabbit model, contraction studies using organ bath was performed. Isolating human tissue and cell cultures, electrophysiological studies were done via whole-cell patch-clamp recording. MAIN OUTCOME MEASURES Vasodilatory effects of LDD175 were evaluated by cumulative addition ranging from 10(-7) to 10(-4) M in corpus cavernosal strips after precontraction with 10(-5) M phenylephrine via organ bath system. Using cultured human CSM cells, patch-clamp recording was performed. Erectile function was measured by in vivo rat cavernous nerve stimulation. RESULTS LDD175 caused an endothelium-independent relaxation of corporal tissues, and this effect was abolished by pretreatment with iberiotoxin. The relaxation effect of 10(-4) M LDD175 was greater than that of 10(-6) M udenafil (54.0 ± 3.1% vs. 34.5 ± 3.9%, P < 0.05); 10(-5) M LDD175 with 10(-6) M udenafil caused a greater relaxation effect on strips than 10(-5) M LDD175 or 10(-6) M udenafil alone (50.7%, 34.1%, vs. 20.7%, respectively, P < 0.001). In patch-clamp recordings, LDD175 increased K(+) currents in a dose-dependent manner, and washout of LDD175 or the addition of iberiotoxin fully reversed the increase. Intravenous LDD175 improved erectile function measured by area under the curve (AUC) of the intracavernosal pressure (ICP)/arterial blood pressure (ABP) ratio (1,612.1 ± 135.6 vs. 1,093.7 ± 123.1, P < 0.05). There was no difference between 10 mg/kg LDD175 and 1 mg/kg udenafil regarding maximal ICP, maximal ICP/ABP ratio, and the AUC of the ICP/ABP ratio (P > 0.05). CONCLUSIONS LDD175 leads to an endothelium-independent relaxation of erectile tissue, primarily through the opening of BKCa channels. The results suggest that LDD175 might be a new candidate treatment for erectile dysfunction.
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Affiliation(s)
- Hyun Hwan Sung
- The Department of Urology, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea
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Huang Y, Wu D, Huang J, Guo Q, Li J, You J. Use of the Wilkinson Catalyst for theortho-CH Heteroarylation of Aromatic Amines: Facile Access to Highly Extended π-Conjugated Heteroacenes for Organic Semiconductors. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406445] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Huang Y, Wu D, Huang J, Guo Q, Li J, You J. Use of the Wilkinson Catalyst for theortho-CH Heteroarylation of Aromatic Amines: Facile Access to Highly Extended π-Conjugated Heteroacenes for Organic Semiconductors. Angew Chem Int Ed Engl 2014; 53:12158-62. [DOI: 10.1002/anie.201406445] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2014] [Indexed: 01/01/2023]
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Moon Y, Kim Y, Hong H, Hong S. Synthesis of heterocyclic-fused benzofurans via C-H functionalization of flavones and coumarins. Chem Commun (Camb) 2014; 49:8323-5. [PMID: 23925467 DOI: 10.1039/c3cc44456b] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient method to effect C-O cyclization was developed via the C-H functionalization of chromones and coumarins, affording heterocyclic-fused benzofurans.
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Affiliation(s)
- Youngtaek Moon
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea.
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Gündüz MG, İşli F, El-Khouly A, Yıldırım Ş, Öztürk Fincan GS, Şimşek R, Şafak C, Sarıoğlu Y, Öztürk Yıldırım S, Butcher RJ. Microwave-assisted synthesis and myorelaxant activity of 9-indolyl-1,8-acridinedione derivatives. Eur J Med Chem 2014; 75:258-66. [DOI: 10.1016/j.ejmech.2014.01.059] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 01/23/2014] [Accepted: 01/29/2014] [Indexed: 01/12/2023]
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Hong BC, Jiang YF, Chang YL, Lee SJ. Synthesis and Cytotoxicity Studies of Cyclohepta[b]indoles, Benzo[6,7]Cyclohepta[1,2-b]Indoles, Indeno[1,2-b]Indoles, and Benzo[a]Carbazoles. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200600086] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Indenoindoles and cyclopentacarbazoles as bioactive compounds: synthesis and biological applications. Eur J Med Chem 2013; 69:465-79. [PMID: 24090918 DOI: 10.1016/j.ejmech.2013.08.049] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 08/26/2013] [Accepted: 08/28/2013] [Indexed: 01/08/2023]
Abstract
Indenoindoles and their isomers cyclopentacarbazoles represent a wide class of synthetic and natural compounds. The great interest of these structures in (bio)organic chemistry is due to the use of various building blocks to get the elemental four ring structure. Depending on the synthetic route chosen, the chemists can achieve a large number of regioisomers. Each regioisomer can be considered as a template for specific functionalizations. Therefore, this mini-review aims (i) to present an overview on how to access this large family of heterocyclic compounds and (ii) to discuss their various biological applications and drug development in oncology (e.g. kinases), in CNS disorders (e.g. Alzheimer's disease), in endocrinology (e.g. hormone replacement therapy) and oxidative stress (e.g. organ preservation). Past and present works will be presented through the systems 6-5-5-6 and 6-5-6-5 (combination of 6-membered and 5-membered rings).
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Wu J, Liu YL, Wu H, Wang HY, Zou P. Crystal structure of ethyl 5-chloro-2-indolecarboxylate, C11H10ClNO2. Z KRIST-NEW CRYST ST 2013. [DOI: 10.1524/ncrs.2013.0087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract C11H10ClNO2, monoclinic, P21/n (no. 14), a = 10.570(3) Å, b = 5.617(2) Å, c = 18.091(5) Å, β = 105.681(4)°, V = 1034.0 Å3, Z = 4, Rgt(F) = 0.0397, wRref(F2) = 0.1072, T = 153 K.
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Affiliation(s)
- Jun Wu
- 1Jiangsu Institute of Nuclear Medicine, Wuxi 214063, Jiangsu Province, P. R. China
| | - Ya-Ling Liu
- 1Jiangsu Institute of Nuclear Medicine, Wuxi 214063, Jiangsu Province, P. R. China
| | - Hao Wu
- 1Jiangsu Institute of Nuclear Medicine, Wuxi 214063, Jiangsu Province, P. R. China
| | - Hong-Yong Wang
- 1Jiangsu Institute of Nuclear Medicine, Wuxi 214063, Jiangsu Province, P. R. China
| | - Pei Zou
- 1Jiangsu Institute of Nuclear Medicine, Wuxi 214063, Jiangsu Province, P. R. China
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Straightforward Bienaymé and copper catalyzed N-arylation sequence to access diverse 5H-pyrido[2′,1′:2,3]imidazo[4,5-b]indoles and analogues. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.07.081] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Jiang B, Li QY, Tu SJ, Li G. Three-Component Domino Reactions for Selective Formation of Indeno[1,2-b]indole Derivatives. Org Lett 2012; 14:5210-3. [DOI: 10.1021/ol3023038] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Bo Jiang
- School of Chemistry and Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, Jiangsu, P. R. China, Institute of Chemistry & Biomedical Sciences, Nanjing University, Nanjing 210093, P. R. China, and Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Qiu-Yun Li
- School of Chemistry and Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, Jiangsu, P. R. China, Institute of Chemistry & Biomedical Sciences, Nanjing University, Nanjing 210093, P. R. China, and Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Shu-Jiang Tu
- School of Chemistry and Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, Jiangsu, P. R. China, Institute of Chemistry & Biomedical Sciences, Nanjing University, Nanjing 210093, P. R. China, and Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Guigen Li
- School of Chemistry and Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, Jiangsu, P. R. China, Institute of Chemistry & Biomedical Sciences, Nanjing University, Nanjing 210093, P. R. China, and Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
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Hristov KL, Parajuli SP, Soder RP, Cheng Q, Rovner ES, Petkov GV. Suppression of human detrusor smooth muscle excitability and contractility via pharmacological activation of large conductance Ca2+-activated K+ channels. Am J Physiol Cell Physiol 2012; 302:C1632-41. [PMID: 22422396 DOI: 10.1152/ajpcell.00417.2011] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Overactive bladder syndrome is frequently associated with increased detrusor smooth muscle (DSM) contractility. We tested the hypothesis that pharmacological activation of the large-conductance voltage- and Ca(2+)-activated K(+) (BK) channel with NS-1619, a selective BK channel opener, reduces the excitability and contractility of human DSM. We used the amphotericin-perforated whole cell patch-clamp technique on freshly isolated human DSM cells, live-cell Ca(2+) imaging, and isometric DSM tension recordings of human DSM strips obtained from open bladder surgeries. NS-1619 (30 μM) significantly increased the amplitude of the voltage step-induced whole cell BK currents, and this effect was abolished by pretreatment with 200 nM iberiotoxin (IBTX), a selective BK channel inhibitor. In current-clamp mode, NS-1619 (30 μM) significantly hyperpolarized the resting membrane potential, and the hyperpolarization was reversed by IBTX (200 nM). NS-1619 (30 μM) significantly decreased the intracellular Ca(2+) level in isolated human DSM cells. BK channel activation with NS-1619 (30 μM) significantly inhibited the amplitude, muscle force, frequency, duration, and tone of the spontaneous phasic and pharmacologically induced DSM contractions from human DSM isolated strips. IBTX (200 nM) suppressed the inhibitory effects of NS-1619 on spontaneous contractions. The amplitude of electrical field stimulation (0.5-50 Hz)-induced contractions was significantly reduced by NS-1619 (30 μM). Our data suggest that pharmacological activation of BK channels could represent a novel treatment option to control bladder dysfunction in humans.
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Affiliation(s)
- Kiril L Hristov
- Department of Pharmaceutical and Biomedical Sciences, South Carolina College of Pharmacy, University of South Carolina, Columbia, USA
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Zhang Z, Fang S, Liu Q, Zhang G. Microwave-Assisted Facile Synthesis of Furo[3,2-b]indole Derivatives via Silver(I)-Mediated [3+2] Cycloaddition. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201100767] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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On benzofuroindole analogues as smooth muscle relaxants. J Biomed Biotechnol 2011; 2011:389056. [PMID: 21941431 PMCID: PMC3177241 DOI: 10.1155/2011/389056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2011] [Accepted: 07/14/2011] [Indexed: 11/18/2022] Open
Abstract
At least two laboratories have independently reported the synthesis of benzofuroindole compounds having potential therapeutic implications in many disease states including those that involve smooth muscle hyperactivity. Through a series of in vitro screenings, they demonstrated the efficacy (and selectivity) of these compounds to potentiate large conductance calcium- (Ca2+-) activated K+ (BKCa) channels, by far, the most characterized of all Ca2+-dependent K+ channels. Interestingly, promising benzofuroindole derivatives such as compound 7 (10H-benzo[4,5]furo[3,2-b]indole) and compound 22 (4-chloro-7-trifluoromethyl-10H-benzo[4,5]furo[3,2-b]indole-1-carboxylic acid) both exhibited high bladder (versus aorta) selectivity, making them attractive alternative treatments for bladder overactivity. In recent reports, compound 22 (LDD175 or TBIC) also showed inhibition of ileum and uterine contractions, indicating multiple target tissues, which is not surprising as BKCa channels are ubiquitously expressed in the animal and human tissues. In this paper, the authors discuss the value of benzofuroindole compounds and the challenges that need to be overcome if they were considered as smooth muscle relaxants.
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Lobo G, Zuleta E, Charris K, Capparelli MV, Briceño A, Angel J, Charris J. Synthesis and Crystal Structure of (4bRS,9bRS)-5-(2,4-dimethoxyphenyl)-4b,9b-7,7-dimethyldihydroxy-4b,5,6,7,8,9b-hexahydroindeno[1,2-b] indole-9,10-dione. JOURNAL OF CHEMICAL RESEARCH 2011. [DOI: 10.3184/174751911x13015834294266] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A highly regiospecific synthesis and crystal structure of (4b RS,9b RS)-5-(2,4-dimethoxyphenyl)-7,7-dimethyl-4b,9b-dihydroxy-4b,5,6,7,8,9b-hexahydroindeno[1,2- b]indole-9,10-dione is reported. It was tested in vitro against six human tumour cell lines and two nontumourogenic cell lines. Their in vitro activity against Mycobacterium tuberculosis is also reported. In general, it was found to possess a marginal activity.
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Affiliation(s)
- Gricela Lobo
- Laboratorio de Síntesis Orgánica, Facultad de Farmacia, Universidad Central de Venezuela, Apartado 47206, Los Chaguaramos, 1041-A Caracas, Venezuela
| | - Elimar Zuleta
- Laboratorio de Síntesis Orgánica, Facultad de Farmacia, Universidad Central de Venezuela, Apartado 47206, Los Chaguaramos, 1041-A Caracas, Venezuela
| | - Katiuska Charris
- Laboratorio de Síntesis Orgánica, Facultad de Farmacia, Universidad Central de Venezuela, Apartado 47206, Los Chaguaramos, 1041-A Caracas, Venezuela
| | - Mario V. Capparelli
- Unidad de Estructura Molecular, Fundación Instituto de Estudios Avanzados (IDEA), Apartado 17606, Caracas 1015-A, Venezuela
| | - Alexander Briceño
- Laboratorio de Síntesis y Caracterización de Nuevos Materiales, Instituto Venezolano de Investigaciones Científicas (IVIC) Apartado 21827, Caracas, 1020-A, Venezuela
| | - Jorge Angel
- Laboratorio de Síntesis Orgánica y Diseño de Fármacos, Dpto. de Química, Facultad Experimental de Ciencias, Universidad del Zulia, Maracaibo, Venezuela
| | - Jaime Charris
- Laboratorio de Síntesis Orgánica, Facultad de Farmacia, Universidad Central de Venezuela, Apartado 47206, Los Chaguaramos, 1041-A Caracas, Venezuela
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Ahn HS, dela Peña I, Kim YC, Cheong JH. 4-Chloro-7-Trifluoromethyl-10 H- Benzo[4,5]furo[3,2- b]Indole-1-Carboxylic Acid (TBIC), a Putative BK Ca Channel Opener with Uterine Relaxant Activities. Pharmacology 2011; 87:331-40. [DOI: 10.1159/000328141] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2011] [Accepted: 04/04/2011] [Indexed: 11/19/2022]
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Layne JJ, Nausch B, Olesen SP, Nelson MT. BK channel activation by NS11021 decreases excitability and contractility of urinary bladder smooth muscle. Am J Physiol Regul Integr Comp Physiol 2009; 298:R378-84. [PMID: 19923353 DOI: 10.1152/ajpregu.00458.2009] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Large-conductance Ca(2+)-activated potassium (BK) channels play an important role in regulating the function and activity of urinary bladder smooth muscle (UBSM), and the loss of BK channel function has been shown to increase UBSM excitability and contractility. However, it is not known whether activation of BK channels has the converse effect of reducing UBSM excitability and contractility. Here, we have sought to investigate this possibility by using the novel BK channel opener NS11021. NS11021 (3 microM) caused an approximately threefold increase in both single BK channel open probability (P(o)) and whole cell BK channel currents. The frequency of spontaneous action potentials in UBSM strips was reduced by NS11021 from a control value of 20.9 + or - 5.9 to 10.9 + or - 3.7 per minute. NS11021 also reduced the force of UBSM spontaneous phasic contractions by approximately 50%, and this force reduction was blocked by pretreatment with the BK channel blocker iberiotoxin. NS11021 (3 microM) had no effect on contractions evoked by nerve stimulation. These findings indicate that activating BK channels reduces the force of UBSM spontaneous phasic contractions, principally through decreasing the frequency of spontaneous action potentials.
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Affiliation(s)
- Jeffrey J Layne
- Department of Pharmacology, College of Medicine, University of Vermont, Burlington, VT 05405, USA
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Dela Peña IC, Yoon SY, Kim SM, Lee GS, Park CS, Kim YC, Cheong JH. Inhibition of intestinal motility by the putative BK(Ca) channel opener LDD175. Arch Pharm Res 2009; 32:413-20. [PMID: 19387586 DOI: 10.1007/s12272-009-1315-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2008] [Revised: 02/17/2009] [Accepted: 02/18/2009] [Indexed: 11/30/2022]
Abstract
LDD175 (4-chloro-7-trifluoromethyl-10H-benzo[4,5]furo[3,2-b]indole-1-carboxylic acid) is a benzofuroindole compound characterized previously as a potent opener of the large conductance calcium activated (BK(Ca)) channels. Activators of the BK(Ca) channels are potential therapies for smooth muscle hyperactivity disorders. The present study investigates the influence of LDD175 on the mechanical activity of the ileum smooth muscle. LDD175 inhibited spontaneous contractions of the ileum in a concentration-dependent manner (pEC(50)=5.9 +/- 0.1) (E (max)=96 +/- 1.0% at 100 muM, n=3). It also remarkably inhibited contractions due to acetylcholine (ACh) (pEC(50)=5.3 +/- 0.1)(E (max)=97.7 +/- 2.3%, n=6) and electrical field stimulation (EFS) (pEC(50)=5.5 +/- 0.1) (E (max)=83.3 +/- 6.0%, n=6). In strips precontracted by 20 mM KCl, LDD175 significantly reduced the contractions yielding a pEC(50) of 6.1 +/- 0.1 and E (max) of 96.6 +/- 0.9%, (n=6). In 60 mM KCl, a concentration-dependent inhibition was observed with respective pEC(50) and E (max) values of 4.1 +/- 0.1 and 50.8 +/- 5.0% (n=3). BK(Ca) channel blockers iberiotoxin (IbTX) and tetraethylammonium chloride (TEA, 1 mM) attenuated the relaxative effect of LDD175 but not barium chloride (BaCl(2)), and glibenclamide (K(IR) and K(ATP) channel blockers, respectively). These data demonstrate the antispasmodic activity of LDD175 attributable to the potentiation of the BK(Ca) channels.
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Garcia ML, Shen DM, Kaczorowski GJ. High-conductance calcium-activated potassium channels. Expert Opin Ther Pat 2007. [DOI: 10.1517/13543776.17.7.831] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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