1
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Ahluwalia MS, Ozair A, Rudek M, Ye X, Holdhoff M, Lieberman FS, Piotrowski AF, Nabors B, Desai A, Lesser G, Huang RC, Glenn S, Khosla AA, Peereboom DM, Wen PY, Grossman SA. A multicenter, phase 1, Adult Brain Tumor Consortium trial of oral terameprocol for patients with recurrent high-grade glioma (GATOR). Cell Rep Med 2024; 5:101630. [PMID: 38955178 PMCID: PMC11293336 DOI: 10.1016/j.xcrm.2024.101630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 03/26/2024] [Accepted: 06/07/2024] [Indexed: 07/04/2024]
Abstract
Recurrent high-grade gliomas (rHGGs) have a dismal prognosis, where the maximum tolerated dose (MTD) of IV terameprocol (5 days/month), a transcriptional inhibitor of specificity protein 1 (Sp1)-regulated proteins, is 1,700 mg/day with median area under the plasma concentration-time curve (AUC) of 31.3 μg∗h/mL. Given potentially increased efficacy with sustained systemic exposure and challenging logistics of daily IV therapy, here we investigate oral terameprocol for rHGGs in a multicenter, phase 1 trial (GATOR). Using a 3 + 3 dose-escalation design, we enroll 20 patients, with median age 60 years (range 31-80), 70% male, and median one relapse (range 1-3). Fasting patients tolerate 1,200 mg/day (n = 3), 2,400 mg/day (n = 6), 3,600 mg/day (n = 3), and 6,000 mg/day (n = 2) oral doses without major toxicities. However, increased dosage does not lead to increased systemic exposure, including in fed state (6,000 mg/day, n = 4), with maximal AUC <5 μg∗h/mL. These findings warrant trials investigating approaches that provide sustained systemic levels of transcription inhibitors to exploit their therapeutic potential. This study was registered at ClinicalTrials.gov (NCT02575794).
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Affiliation(s)
- Manmeet S Ahluwalia
- Rose and Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, OH, USA; Miami Cancer Institute, Baptist Health South Florida, Miami, FL, USA.
| | - Ahmad Ozair
- Miami Cancer Institute, Baptist Health South Florida, Miami, FL, USA; Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Michelle Rudek
- Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Xiaobu Ye
- Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Matthias Holdhoff
- Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Frank S Lieberman
- Department of Neurology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Anna F Piotrowski
- Department of Neuro-Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Burt Nabors
- Department of Neurology, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Arati Desai
- Department of Neurology, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Glenn Lesser
- Department of Hematology and Oncology, Wake Forest Medical Center, Winston, NC, USA
| | - Ru Chih Huang
- Krieger School of Arts and Sciences, Johns Hopkins University, Baltimore, MD, USA
| | - Steve Glenn
- Independent Consultant to Erimos Pharmaceuticals, Houston, TX, USA
| | - Atulya A Khosla
- Miami Cancer Institute, Baptist Health South Florida, Miami, FL, USA
| | - David M Peereboom
- Rose and Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, OH, USA
| | - Patrick Y Wen
- Department of Neurology, Harvard Medical School, Boston, MA, USA; Center for Neuro-Oncology, Dana Farber Cancer Institute, Boston, MA, USA
| | - Stuart A Grossman
- Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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2
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He L, Xu Y. Palladium‐Catalyzed Alkenyl C−H Bonds Benzoxylation of Benzofurans by Perester. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Li He
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 P. R. China
| | - Yongjun Xu
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 P. R. China
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3
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Macena JC, Renzi DF, Grigoletto DF. Chemical and biological properties of nordihydroguaiaretic acid. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e19517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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4
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Diem Ferreira Xavier MC, Andia Sandagorda EM, Santos Neto JS, Schumacher RF, Silva MS. Synthesis of 3-selanylbenzo[ b]furans promoted by SelectFluor®. RSC Adv 2020; 10:13975-13983. [PMID: 35498450 PMCID: PMC9051628 DOI: 10.1039/d0ra01907k] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 03/30/2020] [Indexed: 11/21/2022] Open
Abstract
A simple and practical protocol for the synthesis of 3-selanyl-benzo[b]furans mediated by the SelectFluor® reagent was developed. This novel methodology provided a greener alternative to generate 3-substituted-benzo[b]furans via a metal-free procedure under mild conditions. The intramolecular cyclization reaction was carried out employing an electrophilic selenium species generated in situ through the reaction between SelectFluor® and organic diselenides. The formation of this electrophilic selenium species (RSe-F) was confirmed by heteronuclear NMR spectroscopy, and its reactivity was explored.
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Affiliation(s)
- Maurício Carpe Diem Ferreira Xavier
- Laboratório de Síntese Orgânica Limpa - LASOL, Centro de Ciências Químicas, Farmacêuticas e de Alimentos - CCQFA, Universidade Federal de Pelotas - UFPel Capão do Leão RS Brazil
| | - Eduardo Martarelo Andia Sandagorda
- Laboratório de Síntese Orgânica Limpa - LASOL, Centro de Ciências Químicas, Farmacêuticas e de Alimentos - CCQFA, Universidade Federal de Pelotas - UFPel Capão do Leão RS Brazil
| | | | - Ricardo Frederico Schumacher
- Laboratório de Síntese Orgânica Limpa - LASOL, Centro de Ciências Químicas, Farmacêuticas e de Alimentos - CCQFA, Universidade Federal de Pelotas - UFPel Capão do Leão RS Brazil
- Departamento de Química, Universidade Federal de Santa Maria - UFSM Santa Maria RS Brazil
| | - Márcio Santos Silva
- Laboratório de Síntese Orgânica Limpa - LASOL, Centro de Ciências Químicas, Farmacêuticas e de Alimentos - CCQFA, Universidade Federal de Pelotas - UFPel Capão do Leão RS Brazil
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5
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Sun Z, Xiang K, Tao H, Guo L, Li Y. Synthesis of 2-substituted 3-chlorobenzofurans via TMSCl-mediated nucleophilic annulation of isatin-derived propargylic alcohols. Org Biomol Chem 2018; 16:6133-6139. [PMID: 30101259 DOI: 10.1039/c8ob01731j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A TMSCl-mediated cascade annulation of isatin-derived propargylic alcohols for the synthesis of 2-substituted 3-chlorobenzofurans is now reported. Mechanistic investigations showed that this proceeded through a sequential Meyer-Schuster rearrangement/nucleophilic addition/intramolecular annulation. TMSCl not only acts as a promoter, but also acts as a chlorine source in this protocol.
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Affiliation(s)
- Zhou Sun
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. of China.
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6
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Abbas MA, Badran D, Disi A. Effect of nordihydroguaiaretic acid on spermatogenesis and fertility in rats. Andrologia 2017; 50. [DOI: 10.1111/and.12916] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/22/2017] [Indexed: 01/03/2023] Open
Affiliation(s)
- M. A. Abbas
- Department of Pharmacy; Faculty of Pharmacy and Medical Science; Al-Ahliyya Amman University; Amman Jordan
| | - D. Badran
- Department of Anatomy and Histology; Faculty of Medicine; The University of Jordan; Amman Jordan
| | - A. Disi
- Department of basic Pharmaceutical Sciences; Faculty of Pharmacy; Al-Isra Private University; Amman Jordan
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7
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Dong DQ, Hao SH, Yang DS, Li LX, Wang ZL. Sulfenylation of C-H Bonds for C-S Bond Formation under Metal-Free Conditions. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700853] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Dao-Qing Dong
- College of Chemistry and Pharmaceutical Sciences; Qingdao Agricultural University; 266109 Qingdao P. R. China
| | - Shuang-Hong Hao
- College of Chemistry and Pharmaceutical Sciences; Qingdao Agricultural University; 266109 Qingdao P. R. China
| | - Dao-Shan Yang
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine; School of Chemistry and Chemical Engineering; Qufu Normal University; 273165, Shandong Qufu P. R. China
| | - Li-Xia Li
- College of Chemistry and Pharmaceutical Sciences; Qingdao Agricultural University; 266109 Qingdao P. R. China
| | - Zu-Li Wang
- College of Chemistry and Pharmaceutical Sciences; Qingdao Agricultural University; 266109 Qingdao P. R. China
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8
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Rehan M, Nallagonda R, Das BG, Meena T, Ghorai P. Synthesis of Functionalized Benzo[b]furans via Oxidative Cyclization of o-Cinnamyl Phenols. J Org Chem 2017; 82:3411-3424. [PMID: 28249386 DOI: 10.1021/acs.joc.6b02752] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Disclosed herein is an efficient synthetic route for the synthesis of functionalized 2-benzyl benzo[b]furans via a regioselective 5-exo-trig intramolecular oxidative cyclization of ortho-cinnamyl phenols using [PdCl2(CH3CN)2] as catalyst and benzoquinone as an oxidant. Further, a sequential ortho-cinnamylation of phenols using cinnamyl alcohols catalyzed by Re2O7, followed by an oxidative cyclization using the above Pd catalyst, is performed. The reaction showed broad substrate scope with good to excellent yields.
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Affiliation(s)
- Mohammad Rehan
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Rajender Nallagonda
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Braja Gopal Das
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Tannu Meena
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Prasanta Ghorai
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
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9
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Nogueira-Ferreira R, Ferreira-Pinto MJ, Silva AF, Vitorino R, Justino J, Costa R, Moreira-Gonçalves D, Quignard JF, Ducret T, Savineau JP, Leite-Moreira AF, Ferreira R, Henriques-Coelho T. HMGB1 down-regulation mediates terameprocol vascular anti-proliferative effect in experimental pulmonary hypertension. J Cell Physiol 2017; 232:3128-3138. [PMID: 28036116 DOI: 10.1002/jcp.25763] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Revised: 12/23/2016] [Accepted: 12/29/2016] [Indexed: 11/07/2022]
Abstract
Pulmonary arterial hypertension (PAH) is a progressive disease with a poor prognosis. Pulmonary artery smooth muscle cells (PASMCs) play a crucial role in PAH pathophysiology, displaying a hyperproliferative, and apoptotic-resistant phenotype. In the present study, we evaluated the potential therapeutic role of terameprocol (TMP), an inhibitor of cellular proliferation and promoter of apoptosis, in a well-established pre-clinical model of PAH induced by monocrotaline (MCT) and studied the biological pathways modulated by TMP in PASMCs. Wistar rats injected with MCT or saline (SHAM group) were treated with TMP or vehicle. On day 21 after injection, we assessed bi-ventricular hemodynamics and cardiac and pulmonary morphometry. The effects of TMP on PASMCs were studied in a primary culture isolated from SHAM and MCT-treated rats, using an iTRAQ-based proteomic approach to investigate the molecular pathways modulated by this drug. In vivo, TMP significantly reduced pulmonary and cardiac remodeling and improved cardiac function in PAH. In vitro, TMP inhibited proliferation and induced apoptosis of PASMCs. A total of 65 proteins were differentially expressed in PASMCs from MCT rats treated with TMP, some of which involved in the modulation of transforming growth factor beta pathway and DNA transcription. Anti-proliferative effect of TMP seems to be explained, at least in part, by the down-regulation of the transcription factor HMGB1. Our findings support the beneficial role of TMP in PAH and suggest that it may be an effective therapeutic option to be considered in the clinical management of PAH.
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Affiliation(s)
- Rita Nogueira-Ferreira
- QOPNA, Departamento de Química, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal.,Departamento de Cirurgia e Fisiologia, Faculdade de Medicina, Universidade do Porto, Alameda Professor Hernâni Monteiro, Porto, Portugal
| | - Manuel J Ferreira-Pinto
- Departamento de Cirurgia e Fisiologia, Faculdade de Medicina, Universidade do Porto, Alameda Professor Hernâni Monteiro, Porto, Portugal
| | - Ana Filipa Silva
- Departamento de Cirurgia e Fisiologia, Faculdade de Medicina, Universidade do Porto, Alameda Professor Hernâni Monteiro, Porto, Portugal
| | - Rui Vitorino
- Departamento de Cirurgia e Fisiologia, Faculdade de Medicina, Universidade do Porto, Alameda Professor Hernâni Monteiro, Porto, Portugal.,iBiMED, Departamento de Ciências Médicas, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Joana Justino
- QOPNA, Departamento de Química, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Raquel Costa
- Departamento de Bioquímica, Faculdade de Medicina, Universidade do Porto, Alameda Professor Hernâni Monteiro, Porto, Portugal
| | - Daniel Moreira-Gonçalves
- Departamento de Cirurgia e Fisiologia, Faculdade de Medicina, Universidade do Porto, Alameda Professor Hernâni Monteiro, Porto, Portugal.,CIAFEL, Faculdade de Desporto, Universidade do Porto, Porto, Portugal
| | - Jean-François Quignard
- Université Bordeaux Segalen, Bordeaux, France.,Inserm, Centre de Recherche Cardio-Thoracique, Bordeaux, France
| | - Thomas Ducret
- Université Bordeaux Segalen, Bordeaux, France.,Inserm, Centre de Recherche Cardio-Thoracique, Bordeaux, France
| | - Jean-Pierre Savineau
- Université Bordeaux Segalen, Bordeaux, France.,Inserm, Centre de Recherche Cardio-Thoracique, Bordeaux, France
| | - Adelino F Leite-Moreira
- Departamento de Cirurgia e Fisiologia, Faculdade de Medicina, Universidade do Porto, Alameda Professor Hernâni Monteiro, Porto, Portugal
| | - Rita Ferreira
- QOPNA, Departamento de Química, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Tiago Henriques-Coelho
- Departamento de Cirurgia e Fisiologia, Faculdade de Medicina, Universidade do Porto, Alameda Professor Hernâni Monteiro, Porto, Portugal
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10
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Heravi M, Zadsirjan V, Hamidi H, Tabar Amiri PH. Total synthesis of natural products containing benzofuran rings. RSC Adv 2017. [DOI: 10.1039/c7ra03551a] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
In this review, various approaches for the construction of benzofurans as an important moiety in different natural products during the total synthesis of the natural of products are underscored.
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Affiliation(s)
- Majid M. Heravi
- Department of Chemistry
- School of Sciences
- Alzahra University
- Tehran
- Iran
| | - Vahideh Zadsirjan
- Department of Chemistry
- School of Sciences
- Alzahra University
- Tehran
- Iran
| | - Hoda Hamidi
- Department of Chemistry
- School of Sciences
- Alzahra University
- Tehran
- Iran
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11
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Gawande MB, Goswami A, Felpin FX, Asefa T, Huang X, Silva R, Zou X, Zboril R, Varma RS. Cu and Cu-Based Nanoparticles: Synthesis and Applications in Catalysis. Chem Rev 2016; 116:3722-811. [DOI: 10.1021/acs.chemrev.5b00482] [Citation(s) in RCA: 1589] [Impact Index Per Article: 198.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Manoj B. Gawande
- Regional
Centre of Advanced Technologies and Materials, Faculty of Science,
Department of Physical Chemistry, Palacky University, Šlechtitelů
11, 783 71 Olomouc, Czech Republic
| | - Anandarup Goswami
- Regional
Centre of Advanced Technologies and Materials, Faculty of Science,
Department of Physical Chemistry, Palacky University, Šlechtitelů
11, 783 71 Olomouc, Czech Republic
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, United States
- Department
of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, 98 Brett Road, Piscataway, New Jersey 08854, United States
| | - François-Xavier Felpin
- UFR
Sciences et Techniques, UMR CNRS 6230, Chimie et Interdisciplinarité:
Synthèse, Analyse, Modélisation (CEISAM), Université de Nantes, 2 Rue de la Houssinière, BP 92208, Nantes 44322 Cedex 3, France
| | - Tewodros Asefa
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, United States
- Department
of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, 98 Brett Road, Piscataway, New Jersey 08854, United States
| | - Xiaoxi Huang
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, United States
| | - Rafael Silva
- Department
of Chemistry, Maringá State University, Avenida Colombo 5790, CEP 87020-900 Maringá, Paraná, Brazil
| | - Xiaoxin Zou
- State
Key
Laboratory of Inorganic Synthesis and Preparative Chemistry, International
Joint Research Laboratory of Nano-Micro Architecture Chemistry, College
of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Radek Zboril
- Regional
Centre of Advanced Technologies and Materials, Faculty of Science,
Department of Physical Chemistry, Palacky University, Šlechtitelů
11, 783 71 Olomouc, Czech Republic
| | - Rajender S. Varma
- Regional
Centre of Advanced Technologies and Materials, Faculty of Science,
Department of Physical Chemistry, Palacky University, Šlechtitelů
11, 783 71 Olomouc, Czech Republic
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12
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Kumar CSC, Then LY, Chia TS, Chandraju S, Win YF, Sulaiman SF, Hashim NS, Ooi KL, Quah CK, Fun HK. Benzofuranyl Esters: Synthesis, Crystal Structure Determination, Antimicrobial and Antioxidant Activities. Molecules 2015; 20:16566-81. [PMID: 26378514 PMCID: PMC6332186 DOI: 10.3390/molecules200916566] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 08/14/2015] [Accepted: 08/17/2015] [Indexed: 01/09/2023] Open
Abstract
A series of five new 2-(1-benzofuran-2-yl)-2-oxoethyl 4-(un/substituted)benzoates 4(a-e), with the general formula of C₈H₅O(C=O)CH₂O(C=O)C₆H₄X, X = H, Cl, CH₃, OCH₃ or NO₂, was synthesized in high purity and good yield under mild conditions. The synthesized products 4(a-e) were characterized by FTIR, ¹H-, (13)C- and ¹H-(13)C HMQC NMR spectroscopic analysis and their 3D structures were confirmed by single-crystal X-ray diffraction studies. These compounds were screened for their antimicrobial and antioxidant activities. The tested compounds showed antimicrobial ability in the order of 4b < 4a < 4c < 4d < 4e and the highest potency with minimum inhibition concentration (MIC) value of 125 µg/mL was observed for 4e. The results of antioxidant activities revealed the highest activity for compound 4e (32.62% ± 1.34%) in diphenyl-2-picrylhydrazyl (DPPH) radical scavenging, 4d (31.01% ± 4.35%) in ferric reducing antioxidant power (FRAP) assay and 4a (27.11% ± 1.06%) in metal chelating (MC) activity.
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Affiliation(s)
- C S Chidan Kumar
- X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, Penang 11800, Malaysia.
- Department of Engineering Chemistry, Alva's Institute of Engineering & Technology, Visvesvaraya Technological University, Mijar, Moodbidri 574225, Karnataka, India.
| | - Li Yee Then
- X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, Penang 11800, Malaysia.
| | - Tze Shyang Chia
- X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, Penang 11800, Malaysia.
| | - Siddegowda Chandraju
- Department of Sugar Technology & Chemistry, University of Mysore, Sir M. V. PG Center, Tubinakere, Mandya 571402, Karnataka, India.
| | - Yip-Foo Win
- Department of Chemical Science, Faculty of Science, Universiti Tunku Abdul Rahman, Perak Campus, Jalan Universiti, Bandar Barat, Kampar 31900, Malaysia.
| | | | | | - Kheng Leong Ooi
- School of Biological Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia.
| | - Ching Kheng Quah
- X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, Penang 11800, Malaysia.
| | - Hoong-Kun Fun
- X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, Penang 11800, Malaysia.
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
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13
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Zhao X, Zhang L, Lu X, Li T, Lu K. Synthesis of 2-Aryl and 3-Aryl Benzo[b]furan Thioethers Using Aryl Sulfonyl Hydrazides as Sulfenylation Reagents. J Org Chem 2015; 80:2918-24. [DOI: 10.1021/acs.joc.5b00146] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Xia Zhao
- College
of Chemistry, Tianjin Key Laboratory of Structure and Performance
for Functional Molecules, Tianjin Normal University, Tianjin 300387, China
| | - Lipeng Zhang
- College
of Chemistry, Tianjin Key Laboratory of Structure and Performance
for Functional Molecules, Tianjin Normal University, Tianjin 300387, China
| | - Xiaoyu Lu
- College
of Chemistry, Tianjin Key Laboratory of Structure and Performance
for Functional Molecules, Tianjin Normal University, Tianjin 300387, China
| | - Tianjiao Li
- College
of Chemistry, Tianjin Key Laboratory of Structure and Performance
for Functional Molecules, Tianjin Normal University, Tianjin 300387, China
| | - Kui Lu
- College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
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14
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Han JS, Chen SQ, Zhong P, Zhang XH. One-Pot Synthesis of 2,3-Diarylbenzofurans via Sequential Iodocyclization and Pd-Catalyzed Suzuki Coupling Reactions of 2-Alkynylanisoles with Boronic Acids in Water. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2014.930493] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Jiang-Sheng Han
- a College of Chemistry and Materials Engineering , Wenzhou University , Wenzhou , China
- b ShanDong WeGo Pharmaceutical Co. Ltd., Wego Group , Weihai , China
| | - Su-Qin Chen
- a College of Chemistry and Materials Engineering , Wenzhou University , Wenzhou , China
| | - Ping Zhong
- a College of Chemistry and Materials Engineering , Wenzhou University , Wenzhou , China
- c Oujiang College, Wenzhou University , Wenzhou , China
| | - Xiao-Hong Zhang
- a College of Chemistry and Materials Engineering , Wenzhou University , Wenzhou , China
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15
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Wang WY, Hu BL, Deng CL, Zhang XG. One-pot synthesis of 3-trifluoromethylbenzofurans via tandem iodocyclization and trifluoromethylation of 2-alkynylanisoles. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.01.061] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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16
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Ruan L, Shi M, Mao S, Yu L, Yang F, Tang J. An efficient approach to construct 2-arylbenzo[b]furans from 2-methoxychalcone epoxides. Tetrahedron 2014. [DOI: 10.1016/j.tet.2013.12.050] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Chen J, Li J, Su W. Palladium-catalyzed tandem reaction of 2-hydroxyarylacetonitriles with sodium sulfinates: one-pot synthesis of 2-arylbenzofurans. Org Biomol Chem 2014; 12:4078-83. [DOI: 10.1039/c4ob00575a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Palladium-catalyzed desulfinative addition and intramolecular annulation tandem reactions of 2-hydroxyarylacetonitriles with sodium sulfinates for one-pot synthesis of 2-arylbenzofurans.
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Affiliation(s)
- Jiuxi Chen
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014, China
- College of Chemistry & Materials Engineering
| | - Jianjun Li
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014, China
| | - Weike Su
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014, China
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18
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Li X, Jiang JH, Chen Q, Xiao SX, Li CH, Gu HW, Zhang H, Hu JL, Yao FH, Li QG. Synthesis of nordihydroguaiaretic acid derivatives and their bioactivities on S. pombe and K562 cell lines. Eur J Med Chem 2013; 62:605-13. [DOI: 10.1016/j.ejmech.2013.01.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Revised: 01/14/2013] [Accepted: 01/22/2013] [Indexed: 10/27/2022]
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19
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Tetra-O-methyl nordihydroguaiaretic acid, an inhibitor of Sp1-mediated survivin transcription, induces apoptosis and acts synergistically with chemo-radiotherapy in glioblastoma cells. Invest New Drugs 2013; 31:858-70. [DOI: 10.1007/s10637-012-9917-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Accepted: 12/14/2012] [Indexed: 12/12/2022]
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20
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Grossman SA, Ye X, Peereboom D, Rosenfeld MR, Mikkelsen T, Supko JG, Desideri S. Phase I study of terameprocol in patients with recurrent high-grade glioma. Neuro Oncol 2012; 14:511-7. [PMID: 22323663 PMCID: PMC3309850 DOI: 10.1093/neuonc/nor230] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Accepted: 12/12/2011] [Indexed: 11/14/2022] Open
Abstract
Terameprocol is a global transcription inhibitor that affects cell division apoptosis, drug resistance, hypoxia responsive genes, and radiation resistance in hypoxia. A multicenter, dose-escalation study was conducted in heavily pretreated patients with recurrent, measurable, high-grade gliomas. Terameprocol was administered intravenously for 5 consecutive days each month and discontinued for toxicity or progression. Patients taking enzyme-inducing antiseizure drugs (EIASDs) were escalated independently. Thirty-five patients with a median Karnofsky performance status of 80, median age of 46 years, and median of 2 prior treatment regimens were accrued. Doses of 750, 1100, 1700, and 2200 mg/day were administered. Terameprocol was reformulated to avoid acidosis related to the excipient and was well tolerated at 1700 mg/day. Hypoxia and interstitial nephritis were noted at 2200 mg/day. Concurrent administration of EIASD did not significantly affect the serum pharmacokinetics of the terameprocol. Although no responses were seen, stable disease was noted in 9 (28%) of 32 evaluable patients, with 5 (13%) continuing treatment for >6 months (≥6, 8, 10, 10, and ≥21 months). The overall median survival was 5.9 months. This phase I study defined the toxicity of terameprocol, determined that EIASDs do not affect its pharmacokinetics, and identified 1700 mg/day as the dose for future studies. Preclinical and human data suggest that this novel transcription inhibitor is worthy of further study. The long-term stability noted in some patients and the lack of associated myelosuppression suggest that terameprocol could be safely combined with radiation and temozolomide in newly diagnosed high-grade gliomas.
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Affiliation(s)
- Stuart A Grossman
- Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, Maryland 21231, USA.
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21
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Arias L, Vara Y, Cossío FP. Regioselective Preparation of Benzo[b]furans from Phenols and α-Bromoketones. J Org Chem 2011; 77:266-75. [DOI: 10.1021/jo201841y] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Leire Arias
- Departamento de Química
Orgánica I − Kimika Organikoa I Saila, Universidad del País Vasco − Euskal Herriko Unibertsitatea (UPV/EHU), Manuel de Lardizabal Etorbidea 3, 20018 San
Sebastián − Donostia, Spain
| | - Yosu Vara
- Ikerchem S. L., Paseo
Mikeletegi 69, 20009 San Sebastián − Donostia,
Spain
| | - Fernando P. Cossío
- Departamento de Química
Orgánica I − Kimika Organikoa I Saila, Universidad del País Vasco − Euskal Herriko Unibertsitatea (UPV/EHU), Manuel de Lardizabal Etorbidea 3, 20018 San
Sebastián − Donostia, Spain
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22
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Xu M, Zhang XH, Zhong P. Metal-free synthesis of 3-chalcogen benzo[b]furans via an iodine-mediated electrophilic cyclisation of 2-alkynylanisoles. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.10.045] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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23
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Schneider CC, Caldeira H, Gay BM, Back DF, Zeni G. Transmetalation of Z-Telluroenynes: Stereoselective Synthesis of Z-Enynols and Their Application in Palladium-Catalyzed Cyclization. Org Lett 2010; 12:936-9. [DOI: 10.1021/ol902896x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Caroline C. Schneider
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, and Laboratório de Materiais Inorgânicos, CCNE, UFSM, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Helton Caldeira
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, and Laboratório de Materiais Inorgânicos, CCNE, UFSM, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Bibiana M. Gay
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, and Laboratório de Materiais Inorgânicos, CCNE, UFSM, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Davi F. Back
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, and Laboratório de Materiais Inorgânicos, CCNE, UFSM, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Gilson Zeni
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, and Laboratório de Materiais Inorgânicos, CCNE, UFSM, Santa Maria, Rio Grande do Sul 97105-900, Brazil
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Du HA, Zhang XG, Tang RY, Li JH. PdCl2-Promoted Electrophilic Annulation of 2-Alkynylphenol Derivatives with Disulfides or Diselenides in the Presence of Iodine. J Org Chem 2009; 74:7844-8. [DOI: 10.1021/jo9016309] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hui-Ai Du
- College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, China
| | - Xing-Guo Zhang
- College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, China
| | - Ri-Yuan Tang
- College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, China
| | - Jin-Heng Li
- College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, China
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25
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Meyers RO, Lambert JD, Hajicek N, Pourpak A, Kalaitzis JA, Dorr RT. Synthesis, characterization, and anti-melanoma activity of tetra-O-substituted analogs of nordihydroguaiaretic acid. Bioorg Med Chem Lett 2009; 19:4752-5. [PMID: 19615898 DOI: 10.1016/j.bmcl.2009.06.063] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2009] [Revised: 06/08/2009] [Accepted: 06/15/2009] [Indexed: 10/20/2022]
Abstract
Synthesis of seven semi-synthetic analogs of NDGA is described. An approach to NDGA derivatization is described in which the ortho-phenolic groups are tethered together by one atom, forming a 5-membered heterocyclic ring. The analogs were evaluated for cytotoxicity in four cancer cell lines and compared to NDGA and tetra-O-methyl-NDGA (M4N) (1a). NDGA bis-cyclic sulfate (2a), NDGA bis-cyclic carbonate (2b), and methylenedioxyphenyl-NDGA (2d) and NDGA tetra acetate (1b) showed anti-cancer activity in vitro. Two compounds, (1b) and (2b), were evaluated for anticancer activity in a mouse xenograft model of human melanoma and showed dose-dependent activity.
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Affiliation(s)
- Ross O Meyers
- University of Arizona Cancer Center, Tucson, AZ 85724, USA.
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26
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Chu CY, Lee HJ, Chu CY, Yin YF, Tseng TH. Protective effects of leaf extract of Zanthoxylum ailanthoides on oxidation of low-density lipoprotein and accumulation of lipid in differentiated THP-1 cells. Food Chem Toxicol 2009; 47:1265-71. [DOI: 10.1016/j.fct.2009.02.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2008] [Revised: 02/02/2009] [Accepted: 02/18/2009] [Indexed: 11/29/2022]
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27
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Phase I Clinical Trial of Repeat Dose Terameprocol Vaginal Ointment in Healthy Female Volunteers. Sex Transm Dis 2008; 35:577-82. [DOI: 10.1097/olq.0b013e31816766af] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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Reactivation of methylation-silenced tumor suppressor gene p16INK4a by nordihydroguaiaretic acid and its implication in G1 cell cycle arrest. Life Sci 2008; 82:247-55. [DOI: 10.1016/j.lfs.2007.11.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2007] [Revised: 09/03/2007] [Accepted: 11/05/2007] [Indexed: 11/20/2022]
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29
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Lopez RA, Goodman AB, Rhodes M, Blomberg JAL, Heller J. The anticancer activity of the transcription inhibitor terameprocol (meso-tetra-O-methyl nordihydroguaiaretic acid) formulated for systemic administration. Anticancer Drugs 2007; 18:933-9. [PMID: 17667599 DOI: 10.1097/cad.0b013e32813148e0] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Terameprocol (meso-tetra-O-methyl nordihydroguaiaretic acid, formerly known as EM-1421 and M4N) is a semi-synthetic small molecule with antitumor activity occurring via selective targeting of Sp1-regulated proteins, including survivin and cdc2 that control cell cycle and apoptosis. Terameprocol is in clinical development as a site-specific transcription inhibitor in solid refractory tumors. The present studies were designed to investigate the in-vitro and in-vivo anticancer activity of terameprocol in a novel hydroxypropyl beta-cyclodextrin and polyethylene glycol solvent formulation (designated CPE) designed for safe parenteral administration. Terameprocol powder was dissolved in CPE (20% hydroxypropyl beta-cyclodextrin and 50% polyethylene glycol 300 or 30% hydroxypropyl beta-cyclodextrin and 25% polyethylene glycol 300) or dimethyl sulfoxide and used for in-vitro cell proliferation assays, and in human carcinoma xenograft studies using female athymic nude mice injected with SW-780 human bladder cells. Terameprocol (50 and 100 mg/kg), paclitaxel (5 mg/kg), terameprocol and paclitaxel or vehicle was administered intraperitoneally daily for 21 days. Stock solutions of the CPE formulation were stable for up to 12 months. Terameprocol CPE formulation showed concentration-dependent inhibition of HeLa and C33A cell proliferation, and was less toxic than terameprocol dimethyl sulfoxide formulation. The terameprocol CPE formulation showed no overt toxicities in tumor-bearing mice. Terameprocol alone reduced the rate of tumor growth, and a combination of terameprocol/paclitaxel reduced both the rate and extent of tumor growth. These preclinical results confirm the tumoricidal activity of terameprocol formulated in a solvent suitable for parenteral administration and suggest that terameprocol has improved efficacy when coadministered with paclitaxel.
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Affiliation(s)
- Rocio A Lopez
- Erimos Pharmaceuticals, Raleigh, North Carolina 27606, USA.
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30
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Khanna N, Dalby R, Tan M, Arnold S, Stern J, Frazer N. Phase I/II clinical safety studies of terameprocol vaginal ointment. Gynecol Oncol 2007; 107:554-62. [PMID: 17905420 DOI: 10.1016/j.ygyno.2007.08.074] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2007] [Revised: 08/14/2007] [Accepted: 08/15/2007] [Indexed: 11/22/2022]
Abstract
OBJECTIVES Terameprocol (M4N, EM-1421) is a novel transcription inhibitor that selectively interferes with HPV viral genes E6/E7 with Sp1-dependent promoters, and induces apoptosis by inactivation of the CDC2/cyclin B complex (maturation promoting factor) and production and phosphorylation of survivin. This trial was designed to define the maximum tolerated dose (MTD), dose-limiting toxicity and determine the pharmacokinetic profiles of intravaginal terameprocol in women with HPV-linked cervical squamous intraepithelial neoplasia. METHODS An open label, dose escalation Phase I/II clinical trial enrolled women with biopsy confirmed CIN 1, 2 or 3. Terameprocol (45 or 90 mg) was physician-administered directly to the cervix uteri in 3 once weekly applications. The pharmacokinetics after administration were examined on Day 1 of dosing. Patients underwent colposcopic examinations, HPV testing, biomarker assessments, cytology and cervical punch biopsy. RESULTS Recruitment ended March 30, 2006 and 7 patients were enrolled. Median age was 24 years. There were no serious adverse events (SAEs) and possible treatment-related Adverse Events (AEs) reported were mild and self-limiting. There was no detectable absorption of terameprocol from the vaginal ointment application. CONCLUSIONS Terameprocol in 1% and 2% vaginal ointment use in Phase I/II trials with women with HPV-linked cervical intraepithelial neoplasia has an excellent safety profile, no SAEs reported and mild, self-limiting treatment-related AEs. There was no detectable absorption of terameprocol. These data support the continued evaluation of terameprocol in in vitro and animal efficacy models followed by definitive human Phase II clinical trials in CIN.
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Affiliation(s)
- Niharika Khanna
- Department of Family and Community Medicine, and Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
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31
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Chen JH, Yao XH, Gong W, Hu J, Zhou XD, Chen K, Liu H, Ping YF, Wang JM, Bian XW. A novel lipoxygenase inhibitor Nordy attenuates malignant human glioma cell responses to chemotactic and growth stimulating factors. J Neurooncol 2007; 84:223-31. [PMID: 17377739 DOI: 10.1007/s11060-007-9369-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2007] [Accepted: 03/01/2007] [Indexed: 11/25/2022]
Abstract
Nordy is a chiral compound synthesized based on the structure of a natural lipoxygenase (LO) inhibitor nordihydroguaiaretic acid (NDGA) from plants. The aim of the present study is to investigate the effect of Nordy on malignant human glioma cell responses to chemoattractants and growth promoting signals. We found that Nordy, in a non-cytotoxic concentration range, potently inhibited the chemotaxis and calcium flux of a human glioblastoma cell line U87 induced by a formylpeptide receptor (FPR) agonist, formyl-methionyl-leucyl-phenylalanine (fMLF) and epidermal growth factor (EGF). U87 cells treated by Nordy also showed a significantly impaired proliferation and expression of mRNA for vascular endothelial growth factor (VEGF) induced by fMLF. The chemotactic and proliferation responses of Nordy treated U87 cells to EGF were concomitantly diminished. Further experiments revealed that Nordy did not significantly affect FPR gene expression in U87 cells, but attenuated the activation of a plethora of signaling molecules including ERK1/2, p38, JNK, and Akt when the cells were stimulated by fMLF. EGF-induced EGF receptor phosphorylation was also inhibited in Nordy-treated U87 cells. Moreover, Nordy significantly reduced the tumorigenicity of U87 cells in nude mice. Our results suggest that Nordy is capable of inhibiting glioma cell responses to signals that promote cell motility, growth and production of VEGF. Thus, Nordy may constitute a molecular basis for the development of novel anti-cancer drugs.
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Affiliation(s)
- Jian-hong Chen
- Institute of Pathology, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
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32
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Chakravarty M, Swamy KCK. Palladium-Catalyzed Coupling of Allenylphosphonates, Phenylallenes, and Allenyl Esters: Remarkable Salt Effect and Routes to Novel Benzofurans and Isocoumarins. J Org Chem 2006; 71:9128-38. [PMID: 17109538 DOI: 10.1021/jo061525y] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Coupling reactions of allenylphosphonates (OCH(2)CMe(2)CH(2)O)P(O)CH=C=CRR' [R, R' = H (1a), R = H, R' = Me (1b), R = R' = Me (1c)] with aryl iodides, iodophenol, and iodobenzoic acid in the presence of palladium(II) acetate are investigated and compared with those of phenylallenes PhCH=C=CR2 [R = H (2a), Me (2b)] and allenyl esters EtO(2)CCH=C=CR(2) [R = H (2c), Me (2d)]. While 1b and 1c couple with different stereochemical outcomes using PhI in the presence of Pd(OAc)(2)/PPh(3)/K(2)CO(3) to give phenyl-substituted 1,3-butadienes, 1a does not undergo coupling but isomerizes to the acetylene (OCH(2)CMe(2)CH(2)O)P(O)CCMe (7). In the reaction of 1c with PhI, use of K(2)CO(3) affords the butadiene (Z)-(OCH(2)CMe(2)CH(2)O)P(O)CH=C(Ph)-C(Me)=CH(2) (12); in contrast, the use of Ag(2)CO(3) leads to the allene (OCH(2)CMe(2)CH(2)O)P(O)C(Ph)=C=CMe(2) (20), showing that these bases differ very significantly in their roles. The reaction of 1a with PhI or PhB(OH)2 in (t)he presence of Pd(OAc)2/CsF/DMF leads mainly to (E)-(OCH(2)CMe(2)CH(2)O)P(O)CH=C(Me)Ph (21) and (OCH(2)CMe(2)CH(2)O)P(O)CH2-C(Ph)=CH(2) (22) and is thus a net 1,2-addition of Ph-H. Compound 1b reacts with iodophenol in the presence of Pd(OAc)(2)/PPh(3)/K(2)CO(3) to give a benzofuran that has a structure different from that obtained by using 1c under similar conditions. Treatment of 1a with iodophenol/Pd(OAc)(2)/CsF/DMF also gives a benzofuran whose structure is different from that obtained by using 2a under similar conditions. In the reaction with 2-iodobenzoic acid, 1a and 2c afford one type of isocoumarin, while 1b,c and 2a,b give a second type of isocoumarin. The structures of key compounds are established by X-ray crystallography. Utility of the phosphonate products in the Horner-Wadsworth-Emmons reaction is demonstrated.
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Affiliation(s)
- Manab Chakravarty
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, A. P., India
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Chen JH, Bian XW, Yao XH, Gong W, Hu J, Chen K, Iribarren P, Zhao W, Zhou XD. Nordy, a synthetic lipoxygenase inhibitor, inhibits the expression of formylpeptide receptor and induces differentiation of malignant glioma cells. Biochem Biophys Res Commun 2006; 342:1368-74. [PMID: 16516855 DOI: 10.1016/j.bbrc.2006.02.113] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2006] [Accepted: 02/18/2006] [Indexed: 11/22/2022]
Abstract
We recently found that formylpeptide receptor (FPR), a G-protein-coupled receptor that mediates chemotaxis of phagocytic leukocytes induced by bacterial peptide N-formyl-methionyl-leucyl-phenylalanine, is expressed by malignant human glioma cells and promotes tumor growth and angiogenesis. In this study, we examined the effect of Nordy, a novel chiral lipoxygenase inhibitor which was synthesized based on the structure of a natural nordihydroguaiaretic acid, on the expression of FPR by human glioblastoma cells. We found that FPR was expressed at the protein level by highly malignant human glioma cell lines U87 and BT325, and a rat glioma cell line C6. The expression level of FPR was correlated with the degree of the malignancy of tumor cells. The poorly differentiated glioma cell line U87 expressed the highest level of FPR. In U87 glioma cells, the expression of FPR was attenuated at the protein level by Nordy treatment for 48 (P<0.05). Nordy did not affect FPR mRNA expression in U87 cells. In addition, Nordy treatment seemed to promote glioma cell differentiation, as evidenced by their reduced expression of vimentin and increased expression of GFAP. Our results suggest that Nordy was capable of reducing the level of malignancy of glioma cells.
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Affiliation(s)
- Jian-Hong Chen
- Department of Pharmacy, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
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Yue D, Yao T, Larock RC. Synthesis of 2,3-disubstituted benzo[b]furans by the palladium-catalyzed coupling of o-iodoanisoles and terminal alkynes, followed by electrophilic cyclization. J Org Chem 2005; 70:10292-6. [PMID: 16323837 PMCID: PMC2586666 DOI: 10.1021/jo051299c] [Citation(s) in RCA: 267] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] 2,3-Disubstituted benzo[b]furans are readily prepared under very mild reaction conditions by the palladium/copper-catalyzed cross-coupling of various o-iodoanisoles and terminal alkynes, followed by electrophilic cyclization with I2, PhSeCl, or p-O2NC6H4SCl. Aryl- and vinylic-substituted alkynes undergo electrophilic cyclization in excellent yields. Biologically important furopyridines can be prepared by this approach in high yields.
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Affiliation(s)
- Dawei Yue
- Department of Chemistry, Iowa State University, Ames, IA 50011
| | - Tuanli Yao
- Department of Chemistry, Iowa State University, Ames, IA 50011
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Park R, Chang CC, Liang YC, Chung Y, Henry RA, Lin E, Mold DE, Huang RCC. Systemic Treatment with Tetra-O-Methyl Nordihydroguaiaretic Acid Suppresses the Growth of Human Xenograft Tumors. Clin Cancer Res 2005; 11:4601-9. [PMID: 15958646 DOI: 10.1158/1078-0432.ccr-04-2188] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE We have previously shown that the transcriptional inhibitor tetra-O-methyl nordihydroguaiaretic acid (M4N) induces growth arrest in tumor cells and exhibits tumoricidal activity when injected intratumorally into tumor cell explants in mice. The experiments reported here were designed to determine whether M(4)N can be given systemically and inhibit the growth of five different human xenograft tumors. EXPERIMENTAL DESIGN Nude (nu/nu) mice bearing xenografts of each of five human tumor types (i.e., hepatocellular carcinoma, Hep 3B; prostate carcinoma, LNCaP; colorectal carcinoma, HT-29; breast carcinoma, MCF7; and erythroleukemia, K-562) were treated with M4N given i.v. or i.p. in a Cremophor EL-based solvent system or orally in a corn oil based diet. Tumors from the treated animals were measured weekly and analyzed for the expression of the Cdc2 and survivin genes, both previously shown to be down-regulated by M4N. RESULTS Systemic M4N treatment suppressed the in vivo growth of xenografts in each of the five human tumor types. Four of the five tumor models were particularly sensitive to M4N with tumor growth inhibitions (T/C values) of < or = 42%, whereas the fifth, HT-29, responded to a lesser extent (48.3%). Growth arrest and apoptosis in both the xenograft tumors and in the tumor cells grown in culture were accompanied by reductions in both Cdc2 and tumor-specific survivin gene expression. Pharmacokinetic analysis following oral and i.v. administration to ICR mice indicated an absolute bioavailability for oral M4N of approximately 88%. Minimal drug-related toxicity was observed. CONCLUSION These preclinical studies establish that when given systemically, M4N can safely and effectively inhibit the growth of human tumors in nude mice.
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MESH Headings
- Administration, Oral
- Animals
- Area Under Curve
- CDC2 Protein Kinase/genetics
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Cell Survival/drug effects
- Gene Expression Regulation, Neoplastic/drug effects
- HT29 Cells
- Humans
- Inhibitor of Apoptosis Proteins
- Injections, Intravenous
- K562 Cells
- Masoprocol/administration & dosage
- Masoprocol/analogs & derivatives
- Masoprocol/pharmacokinetics
- Masoprocol/pharmacology
- Mice
- Mice, Inbred C57BL
- Mice, Inbred ICR
- Microtubule-Associated Proteins/genetics
- Neoplasm Proteins
- Neoplasms, Experimental/genetics
- Neoplasms, Experimental/pathology
- Neoplasms, Experimental/prevention & control
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Survivin
- Tissue Distribution
- Xenograft Model Antitumor Assays/methods
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Affiliation(s)
- Richard Park
- Department of Biology, Johns Hopkins University, Baltimore, Maryland 21218-2685, USA
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Lambert JD, Sang S, Dougherty A, Caldwell CG, Meyers RO, Dorr RT, Timmermann BN. Cytotoxic lignans from Larrea tridentata. PHYTOCHEMISTRY 2005; 66:811-815. [PMID: 15797607 DOI: 10.1016/j.phytochem.2005.02.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2004] [Revised: 12/06/2004] [Indexed: 05/24/2023]
Abstract
Six lignans, including the cyclolignan 3,4'-dihydroxy-3',4'-dimethoxy-6,7'-cyclolignan, were isolated from the flowering tops of Larrea tridentata. Additionally the flavanone, (S)-4',5-dihydroxy-7-methoxyflavanone, was isolated for the first time from L. tridentata or any member of the family Zygophyllaceae. All of the compounds were assessed for their growth inhibitory activity against human breast cancer, human colon cancer and human melanoma cell lines. The lignans had IC50 values of 5-60 microM with the linear butane-type lignans being the most potent, and it was found that colon cancer cells were the least sensitive cell type tested. The relative potency of linear butane type lignans against human breast cancer appears to correlate positively with the number of O-methyl groups present on the molecule.
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Affiliation(s)
- Joshua D Lambert
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, 164 Frelinghuysen Road, Piscataway, NJ 08854, USA.
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Chang CC, Heller JD, Kuo J, Huang RCC. Tetra-O-methyl nordihydroguaiaretic acid induces growth arrest and cellular apoptosis by inhibiting Cdc2 and survivin expression. Proc Natl Acad Sci U S A 2004; 101:13239-44. [PMID: 15329416 PMCID: PMC516554 DOI: 10.1073/pnas.0405407101] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
We previously reported that Sp1-dependent Cdc2 gene expression is inhibited by tetra-O-methyl nordihydroguaiaretic acid (M(4)N) and that M(4)N is likely responsible for causing growth arrest in M(4)N-treated transformed C3 cells. Here, we show that after M(4)N treatment and cell-cycle arrest, expression of the Sp1-dependent survivin gene, a member of the inhibitor of apoptosis family, is also suppressed, and the mitochondrial apoptotic pathway is activated. To confirm that inhibition of Cdc2 and survivin gene expression is necessary for M(4)N-induced growth arrest and apoptosis, we tested the effect of adding Cdc2 and survivin back to M(4)N-treated cells. Cell division was transiently restored in the presence of M(4)N after transfection of an exogenous Cdc2 gene copy under the control of the Sp1-independent cytomegalovirus promoter. Caspase-3 activation was also reduced by 50% and 75% in transiently and stably survivin-transfected C3 cells, respectively. The results suggest that M(4)N induces growth arrest and apoptosis by suppressing Cdc2 and survivin expression, which constitutes the cellular basis of its antitumoric action.
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Affiliation(s)
- Chih-Chuan Chang
- Department of Biology, The Johns Hopkins University, Baltimore, MD 21218, USA
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Kao CL, Chern JW. A novel strategy for the synthesis of benzofuran skeleton neolignans: application to ailanthoidol, XH-14, and obovaten. J Org Chem 2002; 67:6772-87. [PMID: 12227810 DOI: 10.1021/jo0258960] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A convenient and general approach to the synthesis of the benzofuran skeleton compounds ailanthoidol, XH-14, and obovaten was developed. Starting from vanillin, a series of reactions afforded 7 in 71% yield. Treatment of 7 with n-BuLi followed by addition of substituted benzaldehydes resulted in the formation of carbinols 11 and 31. The substituted benzophenones obtained from oxidation of 11 and 31 were treated with trimethylsilyldiazomethane lithium salt to give diphenylacetylenes 15 and 33, respectively. 15 and 33 were then cyclized in the presence of either mercury acetate in acetic acid or bromine in chloroform to give 3-chloromercurio- or 3-bromobenzofuran, respectively. The 3-chloromercurio intermediates could be reduced to proton or derivatized to ester or bromide, leading to the synthesis of ailanthoidol, XH-14, and obovaten, respectively. In addition, necleophilic substitution was used to introduce a formyl or methyl group into the 3-bromobenzofuran derivatives, providing an alternative pathway to XH-14 and obovaten. The final elongation and deprotection reaction furnished the desired ailanthoidol, XH-14, and obovaten in yields of 30, 15, and 11%, respectively.
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Affiliation(s)
- Chai-Lin Kao
- School of Pharmacy, College of Medicine, National Taiwan University, No. 1, Section 1, Jen-Ai Road, Taipei (100), Taiwan
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