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Ezquerra Riega SD, Gutierrez Suburu ME, Rodríguez HB, Lantaño B, Kleinschmidt M, Marian CM, Strassert CA. A Case-Study on the Photophysics of Chalcogen-Substituted Zinc(II) Phthalocyanines. Chemistry 2024; 30:e202304083. [PMID: 38647352 DOI: 10.1002/chem.202304083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Indexed: 04/25/2024]
Abstract
Singlet dioxygen has been widely applied in different disciplines such as medicine (photodynamic therapy or blood sterilization), remediation (wastewater treatment) or industrial processes (fine chemicals synthesis). Particularly, it can be conveniently generated by energy transfer between a photosensitizer's triplet state and triplet dioxygen upon irradiation with visible light. Among the best photosensitizers, substituted zinc(II) phthalocyanines are prominent due to their excellent photophysical properties, which can be tuned by structural modifications, such as halogen- and chalcogen-atom substitution. These patterns allow for the enhancement of spin-orbit coupling, commonly attributed to the heavy atom effect, which correlates with the atomic number ( Z ${Z}$ ) and the spin-orbit coupling constant ( ζ ${\zeta }$ ) of the introduced heteroatom. Herein, a fully systematic analysis of the effect exerted by chalcogen atoms on the photophysical characteristics (absorption and fluorescence properties, lifetimes and singlet dioxygen photogeneration), involving 30 custom-made β-tetrasubstituted chalcogen-bearing zinc(II) phthalocyanines is described and evaluated regarding the heavy atom effect. Besides, the intersystem crossing rate constants are estimated by several independent methods and a quantitative profile of the heavy atom is provided by using linear correlations between relative intersystem crossing rates and relative atomic numbers. Good linear trends for both intersystem crossing rates (S1-T1 and T1-S0) were obtained, with a dependency on the atomic number and the spin-orbit coupling constant scaling asZ 0 . 4 ${{Z}^{0.4}}$ andζ 0 . 2 ${{\zeta }^{0.2}}$ , respectively The trend shows to be independent of the solvent and temperature.
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Affiliation(s)
- Sergio D Ezquerra Riega
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Junín 956, C1113AAD, Buenos Aires, Argentina
- Universidad de Buenos Aires, Instituto de Tecnología Farmacéutica y Biofarmacia (InTecFyB), Junín 956, C1113AAD, Buenos Aires, Argentina
- CONICET - Universidad de Buenos Aires, Instituto de Química Física de los Materiales, Medio Ambiente y Energía (INQUIMAE); Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, UBA., Ciudad Universitaria Pab. II, C1428EHA, Buenos Aires, Argentina
| | - Matías E Gutierrez Suburu
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 28/30, D-48149, Münster, Germany
- CeNTech, SoN, CiMIC, Universität Münster, Heisenbergstraße 11, D-48149, Münster, Germany
| | - Hernán B Rodríguez
- CONICET - Universidad de Buenos Aires, Instituto de Química Física de los Materiales, Medio Ambiente y Energía (INQUIMAE); Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, UBA., Ciudad Universitaria Pab. II, C1428EHA, Buenos Aires, Argentina
| | - Beatriz Lantaño
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Junín 956, C1113AAD, Buenos Aires, Argentina
- Universidad de Buenos Aires, Instituto de Tecnología Farmacéutica y Biofarmacia (InTecFyB), Junín 956, C1113AAD, Buenos Aires, Argentina
| | - Martin Kleinschmidt
- Institut für Theoretische Chemie und Computerchemie, Fakultät für Mathematik und Naturwissenschaften, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - Christel M Marian
- Institut für Theoretische Chemie und Computerchemie, Fakultät für Mathematik und Naturwissenschaften, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - Cristian A Strassert
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 28/30, D-48149, Münster, Germany
- CeNTech, SoN, CiMIC, Universität Münster, Heisenbergstraße 11, D-48149, Münster, Germany
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Wróbel TM, Jørgensen FS, Pandey AV, Grudzińska A, Sharma K, Yakubu J, Björkling F. Non-steroidal CYP17A1 Inhibitors: Discovery and Assessment. J Med Chem 2023; 66:6542-6566. [PMID: 37191389 DOI: 10.1021/acs.jmedchem.3c00442] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
CYP17A1 is an enzyme that plays a major role in steroidogenesis and is critically involved in the biosynthesis of steroid hormones. Therefore, it remains an attractive target in several serious hormone-dependent cancer diseases, such as prostate cancer and breast cancer. The medicinal chemistry community has been committed to the discovery and development of CYP17A1 inhibitors for many years, particularly for the treatment of castration-resistant prostate cancer. The current Perspective reflects upon the discovery and evaluation of non-steroidal CYP17A1 inhibitors from a medicinal chemistry angle. Emphasis is placed on the structural aspects of the target, key learnings from the presented chemotypes, and design guidelines for future inhibitors.
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Affiliation(s)
- Tomasz M Wróbel
- Department of Synthesis and Chemical Technology of Pharmaceutical Substances, Faculty of Pharmacy, Medical University of Lublin, Chodźki 4a, 20093 Lublin, Poland
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Flemming Steen Jørgensen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Amit V Pandey
- Pediatric Endocrinology, Department of Pediatrics, University Children's Hospital, Inselspital, Bern and Translational Hormone Research Program, Department of Biomedical Research, University of Bern, Freiburgstrasse 15, 3010 Bern, Switzerland
| | - Angelika Grudzińska
- Department of Synthesis and Chemical Technology of Pharmaceutical Substances, Faculty of Pharmacy, Medical University of Lublin, Chodźki 4a, 20093 Lublin, Poland
| | - Katyayani Sharma
- Pediatric Endocrinology, Department of Pediatrics, University Children's Hospital, Inselspital, Bern and Translational Hormone Research Program, Department of Biomedical Research, University of Bern, Freiburgstrasse 15, 3010 Bern, Switzerland
| | - Jibira Yakubu
- Pediatric Endocrinology, Department of Pediatrics, University Children's Hospital, Inselspital, Bern and Translational Hormone Research Program, Department of Biomedical Research, University of Bern, Freiburgstrasse 15, 3010 Bern, Switzerland
| | - Fredrik Björkling
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
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3
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Benzi A, Bianchi L, Giorgi G, Maccagno M, Petrillo G, Spinelli D, Tavani C. An Easy Access to Furan-Fused Polyheterocyclic Systems. Molecules 2022; 27:molecules27103147. [PMID: 35630623 PMCID: PMC9143548 DOI: 10.3390/molecules27103147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/09/2022] [Accepted: 05/12/2022] [Indexed: 11/25/2022] Open
Abstract
Nitrostilbenes characterized by two different or differently substituted aryl moieties can be obtained from the initial ring-opening of 3-nitrobenzo[b]thiophene with amines. Such versatile building blocks couple the well-recognized double electrophilic reactivity of the nitrovinyl moiety (addition to the double bond, followed by, e.g., intramolecular replacement of the nitro group) with the possibility to exploit a conjugated system of double bonds within an electrocyclization process. Herein, nitrostilbenes are reacted with different aromatic enols provided by a double (carbon and oxygen) nucleophilicity, leading to novel, interesting naphthodihydrofurans. From these, as a viable application, aromatization and electrocyclization lead in turn to valuable polycondensed, fully aromatic O-heterocycles.
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Affiliation(s)
- Alice Benzi
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy; (A.B.); (L.B.); (M.M.); (G.P.)
| | - Lara Bianchi
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy; (A.B.); (L.B.); (M.M.); (G.P.)
| | - Gianluca Giorgi
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università di Siena, Via A. Moro, 53100 Siena, Italy;
| | - Massimo Maccagno
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy; (A.B.); (L.B.); (M.M.); (G.P.)
| | - Giovanni Petrillo
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy; (A.B.); (L.B.); (M.M.); (G.P.)
| | - Domenico Spinelli
- Dipartimento di Chimica “G. Ciamician”, Alma Mater Studiorum-University of Bologna, Via F. Selmi 2, 40126 Bologna, Italy;
| | - Cinzia Tavani
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy; (A.B.); (L.B.); (M.M.); (G.P.)
- Correspondence:
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Man N, Li Y, Jie J, Li H, Yang H, Zhao Y, Fu H. Synthesis of Chiral Propargylamines, Chiral 1,2-Dihydronaphtho[2,1-b]furans and Naphtho[2,1-b]furans with C-Alkynyl N,N'-di-(tert-butoxycarbonyl)-aminals and β-Naphthols. Chemistry 2021; 27:12884-12889. [PMID: 34133047 DOI: 10.1002/chem.202102040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Indexed: 12/21/2022]
Abstract
Chiral phosphoric acid-catalyzed couplings of C-alkynyl N,N'-di-(tert-butoxycarbonyl)-aminals with β-naphthols led to chiral propargylamines in moderate to high yields with high to excellent enantioselectivity, in which the reactions underwent sequential chiral phosphoric acid-catalyzed in situ formation of N-(tert-butoxycarbonyl)-imines (N-Boc-imines) from the aminals, and 1,2-addition of β-naphthols to the N-Boc-imines. Chiral 1,2-dihydronaphtho[2,1-b]furans and naphtho[2,1-b]furans were prepared with satisfactory results when 10 mol% AgOAc and 20 mol% 2,6-lutidine or 1.2 equiv. of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) were added to the resulting chiral propargylamines solution, respectively.
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Affiliation(s)
- Ningning Man
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yuming Li
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Jiyang Jie
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Hongyun Li
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Haijun Yang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yufen Zhao
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Hua Fu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
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Exosomes are the Driving Force in Preparing the Soil for the Metastatic Seeds: Lessons from the Prostate Cancer. Cells 2020; 9:cells9030564. [PMID: 32121073 PMCID: PMC7140426 DOI: 10.3390/cells9030564] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 02/17/2020] [Accepted: 02/20/2020] [Indexed: 12/13/2022] Open
Abstract
Exosomes are nano-membrane vesicles that various cell types secrete during physiological and pathophysiological conditions. By shuttling bioactive molecules such as nucleic acids, proteins, and lipids to target cells, exosomes serve as key regulators for multiple cellular processes, including cancer metastasis. Recently, microvesicles have emerged as a challenge in the treatment of prostate cancer (PCa), encountered either when the number of vesicles increases or when the vesicles move into circulation, potentially with an ability to induce drug resistance, angiogenesis, and metastasis. Notably, the exosomal cargo can induce the desmoplastic response of PCa-associated cells in a tumor microenvironment (TME) to promote PCa metastasis. However, the crosstalk between PCa-derived exosomes and the TME remains only partially understood. In this review, we provide new insights into the metabolic and molecular signatures of PCa-associated exosomes in reprogramming the TME, and the subsequent promotion of aggressive phenotypes of PCa cells. Elucidating the molecular mechanisms of TME reprogramming by exosomes draws more practical and universal conclusions for the development of new therapeutic interventions when considering TME in the treatment of PCa patients.
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Olyaei A, Sadeghpour M. Dihydronaphthofurans: synthetic strategies and applications. RSC Adv 2020; 10:5794-5826. [PMID: 35497409 PMCID: PMC9049295 DOI: 10.1039/c9ra09987e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 01/29/2020] [Indexed: 11/21/2022] Open
Abstract
Dihydronaphthofurans (DHNs) are an important class of arene ring-fused furans which are widely found in many natural and non-natural products and drug candidates with relevant biological and pharmacological activities. Furthermore, vinylidene-naphthofurans exhibit photochromic properties when exposed to UV or sun light at room temperature. For these reasons, a vast array of synthetic procedures for the preparation of dihydronaphthofurans including annulation of naphthols with various reagents, cycloaddition reactions ([3 + 2], [4 + 1] and Diels-Alder), intramolecular transannulation, Friedel-Crafts, Wittig, Claisen rearrangement, neophyl rearrangement and other reactions under various conditions have been developed over the past decades. This review aims to describe the different strategies developed so far for the synthesis of dihydronaphthofurans and their applications. After a brief introduction to the types of dihydronaphthofurans and their biological activities, the different synthetic approaches such as chemical, photochemical, and electrochemical, methods are described and organized on the basis of the catalysts and the other reagents employed in the syntheses. The subsequent section focuses on biological and pharmacological applications and photochromic properties of the target compounds.
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Affiliation(s)
- Abolfazl Olyaei
- Department of Chemistry, Payame Noor University (PNU) PO BOX 19395-4697 Tehran Iran
| | - Mahdieh Sadeghpour
- Department of Chemistry, Takestan Branch, Islamic Azad University Takestan Iran
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7
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Somashekara B, Thippeswamy B, Vijayakumar GR. Synthesis, antioxidant and $$\alpha $$-amylase inhibition activity of naphthalene-containing 2,4,5-trisubstituted imidazole derivatives. J CHEM SCI 2019. [DOI: 10.1007/s12039-019-1639-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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8
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Liu Y, Wang B. 2-Iodoxybenzenesulfonic Acid-Catalysed oxidation of Primary and Secondary Alcohols with Oxone in Cetyl Trimethylammonium Bromide Micelles at Room Temperature. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/174751914x14031774189763] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Yangyang Liu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
| | - Boliang Wang
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
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9
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Ai CZ, Man HZ, Saeed Y, Chen DC, Wang LH, Jiang YZ. Computational insight into crucial binding features for metabolic specificity of cytochrome P450 17A1. INFORMATICS IN MEDICINE UNLOCKED 2019. [DOI: 10.1016/j.imu.2019.100172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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10
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Formal [4 + 1] cycloaddition strategy for the synthesis of dihydrobenzofurans via Michael addition of 2-(2-nitrovinyl)-phenols and malonate esters (C1 synthon) and subsequent iodine-catalyzed oxidative annulation. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.09.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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11
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Wang D, Tong X. Phosphine-Catalyzed Asymmetric (3+2) Annulations of δ-Acetoxy Allenoates with 2-Naphthols. Org Lett 2017; 19:6392-6395. [DOI: 10.1021/acs.orglett.7b03250] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Dong Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, 213164, China
| | - Xiaofeng Tong
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, 213164, China
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12
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Alonso P, Pardo P, Fontaneda R, Fañanás FJ, Rodríguez F. Synthesis and Applications of Cyclohexenyl Halides Obtained by a Cationic Carbocyclisation Reaction. Chemistry 2017; 23:13158-13163. [DOI: 10.1002/chem.201702490] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Pedro Alonso
- Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería, 8 33006 Oviedo Spain
| | - Pilar Pardo
- Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería, 8 33006 Oviedo Spain
| | - Raquel Fontaneda
- Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería, 8 33006 Oviedo Spain
| | - Francisco J. Fañanás
- Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería, 8 33006 Oviedo Spain
| | - Félix Rodríguez
- Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería, 8 33006 Oviedo Spain
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13
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A DFT computational study on the molecular mechanism of reaction between pyridinium salts and π-deficient ethylenes: Why furan derivatives are formed instead of feasible cyclopropane derivatives and [3 + 2] cycloadducts? COMPUT THEOR CHEM 2017. [DOI: 10.1016/j.comptc.2017.05.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Akkachairin B, Tummatorn J, Supantanapong N, Nimnual P, Thongsornkleeb C, Ruchirawat S. Silver-Catalyzed Cyclization of ortho-Carbonylarylacetylenols for the Synthesis of Dihydronaphthofurans. J Org Chem 2017; 82:3727-3740. [DOI: 10.1021/acs.joc.7b00198] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Bhornrawin Akkachairin
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology
(EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
| | - Jumreang Tummatorn
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology
(EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
- Laboratory
of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng
Phet 6, Laksi, Bangkok 10210, Thailand
| | - Nantamon Supantanapong
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology
(EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
| | - Phongprapan Nimnual
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology
(EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
| | - Charnsak Thongsornkleeb
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology
(EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
- Laboratory
of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng
Phet 6, Laksi, Bangkok 10210, Thailand
| | - Somsak Ruchirawat
- Program on Chemical Biology, Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology
(EHT), Ministry of Education, 54 Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
- Laboratory
of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng
Phet 6, Laksi, Bangkok 10210, Thailand
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15
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Direct observation of redox reactions in Candida parapsilosis ATCC 7330 by Confocal microscopic studies. Sci Rep 2016; 6:34344. [PMID: 27739423 PMCID: PMC5064409 DOI: 10.1038/srep34344] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 09/13/2016] [Indexed: 11/09/2022] Open
Abstract
Confocal microscopic studies with the resting cells of yeast, Candida parapsilosis ATCC 7330, a reportedly versatile biocatalyst for redox enzyme mediated preparation of optically pure secondary alcohols in high optical purities [enantiomeric excess (ee) up to >99%] and yields, revealed that the yeast cells had large vacuoles under the experimental conditions studied where the redox reaction takes place. A novel fluorescence method was developed using 1-(6-methoxynaphthalen-2-yl)ethanol to track the site of biotransformation within the cells. This alcohol, itself non-fluorescent, gets oxidized to produce a fluorescent ketone, 1-(6-methoxynaphthalen-2-yl)ethanone. Kinetic studies showed that the reaction occurs spontaneously and the products get released out of the cells in less time [5 mins]. The biotransformation was validated using HPLC.
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16
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Tucci M, Scagliotti GV, Vignani F. Metastatic castration-resistant prostate cancer: time for innovation. Future Oncol 2015; 11:91-106. [PMID: 25572785 DOI: 10.2217/fon.14.145] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Androgen deprivation is the mainstay of advanced prostate cancer treatment. Despite initial responses, almost all patients progress to castration-resistant prostate cancer (CRPC). The understanding of the biology of CRPC and the evidence that CRPC still remains driven by androgen receptor signaling led to the discovery of new therapeutic targets. In the last few years, large Phase III trials showed improvements in survival and outcomes and led to the approval of a CYP17 inhibitor (abiraterone), an androgen receptor antagonist (enzalutamide), the taxane cabazitaxel, an α-emitter (radium-223), the bone resorption-targeting drug denosumab and an immunotherapy (sipuleucel-T). This article describes the molecular mechanisms underlying castration resistance, discusses recent and ongoing trials and offers some insights into identifying the best sequence of new drugs.
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Affiliation(s)
- Marcello Tucci
- University of Turin, Department of Oncology, S Luigi Hospital, Division of Medical Oncology, Regione Gonzole, 10, 10043 - Orbassano (Torino), Italy
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Sadeghpour M, Olyaei A, Lotfiyan J, Rajabi F. One-Pot Green Synthesis of Novel Polysubstituted 1,2-Dihydronaphtho[2,1-b]furans. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2015.1017052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Mahdieh Sadeghpour
- Department of Chemistry, Takestan Branch, Islamic Azad University, Takestan, Iran
| | - Abolfazl Olyaei
- Department of Chemistry, Payame Noor University (PNU), Tehran, Iran
| | - Jamshid Lotfiyan
- Department of Chemistry, Payame Noor University (PNU), Tehran, Iran
| | - Fatemeh Rajabi
- Department of Chemistry, Payame Noor University (PNU), Tehran, Iran
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18
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Zhang J, Yao J, Liu J, Xue S, Li Y, Wang C. Four-component reaction between naphthols, substituted β-nitrostyrenes, substituted benzaldehydes and ammonium acetate in water–PEG-400: an approach to construct polysubstituted naphthofuranamines. RSC Adv 2015. [DOI: 10.1039/c5ra07642k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The diversity-oriented synthesis of naphtho[b]furans via a four-component reaction between naphthanols, substituted β-nitrostyrenes, substituted benzaldehydes and ammonium acetate has been developed.
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Affiliation(s)
- Jungui Zhang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
- New Division: School of Hydraulic
| | - Juan Yao
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Jiaming Liu
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Shuwen Xue
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Yang Li
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Cunde Wang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
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19
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Tarus B, Bertrand H, Zedda G, Di Primo C, Quideau S, Slama-Schwok A. Structure-based design of novel naproxen derivatives targeting monomeric nucleoprotein of Influenza A virus. J Biomol Struct Dyn 2014; 33:1899-912. [PMID: 25333630 PMCID: PMC4548311 DOI: 10.1080/07391102.2014.979230] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The nucleoprotein (NP) binds the viral RNA genome as oligomers assembled with the polymerase in a ribonucleoprotein complex required for transcription and replication of influenza A virus. Novel antiviral candidates targeting the nucleoprotein either induced higher order oligomers or reduced NP oligomerization by targeting the oligomerization loop and blocking its insertion into adjacent nucleoprotein subunit. In this study, we used a different structure-based approach to stabilize monomers of the nucleoprotein by drugs binding in its RNA-binding groove. We recently identified naproxen as a drug competing with RNA binding to NP with antiinflammatory and antiviral effects against influenza A virus. Here, we designed novel derivatives of naproxen by fragment extension for improved binding to NP. Molecular dynamics simulations suggested that among these derivatives, naproxen A and C0 were most promising. Their chemical synthesis is described. Both derivatives markedly stabilized NP monomer against thermal denaturation. Naproxen C0 bound tighter to NP than naproxen at a binding site predicted by MD simulations and shown by competition experiments using wt NP or single-point mutants as determined by surface plasmon resonance. MD simulations suggested that impeded oligomerization and stabilization of monomeric NP is likely to be achieved by drugs binding in the RNA grove and inducing close to their binding site conformational changes of key residues hosting the oligomerization loop as observed for the naproxen derivatives. Naproxen C0 is a potential antiviral candidate blocking influenza nucleoprotein function.
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Affiliation(s)
- Bogdan Tarus
- a Virologie et Immunologie Moléculaires, UR892, Institut National de la Recherche Agronomique , Domaine de Vilvert, 78350 Jouy en Josas , France
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20
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Nencetti S, Ciccone L, Rossello A, Nuti E, Milanese C, Orlandini E. Synthesis and cycloxygenase inhibitory properties of new naphthalene-methylsulfonamido, naphthalene-methylsulfonyl and tetrahydronaphthalen-methylsulfonamido compounds. J Enzyme Inhib Med Chem 2014; 30:406-12. [DOI: 10.3109/14756366.2014.940937] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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21
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Highly-selective 4-(1,2,3-triazole)-based P450c17a 17,20-lyase inhibitors. Bioorg Med Chem Lett 2014; 24:2444-7. [DOI: 10.1016/j.bmcl.2014.04.024] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 04/03/2014] [Accepted: 04/07/2014] [Indexed: 11/23/2022]
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22
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Mateo J, Smith A, Ong M, de Bono JS. Novel drugs targeting the androgen receptor pathway in prostate cancer. Cancer Metastasis Rev 2014; 33:567-79. [DOI: 10.1007/s10555-013-9472-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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23
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Osyanin VA, Osipov DV, Klimochkin YN. Reactions of o-quinone methides with pyridinium methylides: a diastereoselective synthesis of 1,2-dihydronaphtho[2,1-b]furans and 2,3-dihydrobenzofurans. J Org Chem 2013; 78:5505-20. [PMID: 23668240 DOI: 10.1021/jo400621r] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A simple, general route to the 1,2-dihydronaphtho[2,1-b]furans and 2,3-dihydrobenzofurans substituted at C-2 by an acyl or aryl group, starting from phenolic Mannich bases and pyridinium ylides, has been developed. The mechanism of the reaction is believed to involve the formation of the o-quinone methide intermediate, Michael-type addition of the ylide to the o-quinone methide, followed by intramolecular nucleophilic substitution.
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Affiliation(s)
- Vitaly A Osyanin
- Department of Organic Chemistry, Samara State Technical University, 244 Molodogvardeiskaya Street, 443100 Samara, Russian Federation.
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24
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Watson CG, Aggarwal VK. Asymmetric synthesis of 1-heteroaryl-1-arylalkyl tertiary alcohols and 1-pyridyl-1-arylethanes by lithiation-borylation methodology. Org Lett 2013; 15:1346-9. [PMID: 23461803 DOI: 10.1021/ol400289v] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The synthesis of highly enantioenriched α-heterocyclic tertiary alcohols has been achieved via lithiation-borylation of a configurationally stable lithiated carbamate and heterocyclic pinacol boronic esters followed by oxidation. Protodeboronation of the α-heterocyclic tertiary boronic esters using TBAF·3H2O or CsF gave highly enantioenriched 1-pyridyl-1-arylethanes in high er.
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Affiliation(s)
- Charlotte G Watson
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK
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25
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Leibowitz-Amit R, Joshua AM. Targeting the androgen receptor in the management of castration-resistant prostate cancer: rationale, progress, and future directions. ACTA ACUST UNITED AC 2013; 19:S22-31. [PMID: 23355790 DOI: 10.3747/co.19.1281] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Since the year 2000, tremendous progress has been made in the understanding of castration-resistant prostate cancer (crpc), a disease state now recognized to retain androgen receptor (ar)-dependency in most cases. That understanding led to the rational design of novel therapeutic agents targeting hormonal pathways in metastatic crpc. Two new drugs-the CYP17 inhibitor abiraterone acetate and the potent ar antagonist enzalutamide-were recently shown to prolong overall survival after chemotherapy treatment in patients with metastatic disease, with the former agent also demonstrating impressive activity in the pre-chemotherapy setting. Other new drugs targeting the ar-as well as drugs targeting heat shock proteins that protect cytoplasmic ar from degradation-are currently undergoing clinical development.This review briefly describes the molecular mechanisms underlying castration resistance and hormonal dependence in prostate tumours and summarizes the current ongoing and completed clinical trials that are targeting hormonal pathways in metastatic crpc. Potential mechanisms of resistance to these novel hormonal agents are reviewed. Finally, future research directions, including questions about drug sequencing and combination, are discussed.
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Affiliation(s)
- R Leibowitz-Amit
- Department of Medical Oncology, Princess Margaret Hospital, Toronto, ON
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26
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Singh P, Dinda SK, Shagufta, Panda G. Synthetic approach towards trisubstituted methanes and a chiral tertiary α-hydroxyaldehyde, a possible intermediate for tetrasubstituted methanes. RSC Adv 2013. [DOI: 10.1039/c3ra41826j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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27
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Eichholz A, Ferraldeschi R, Attard G, de Bono JS. Putting the brakes on continued androgen receptor signaling in castration-resistant prostate cancer. Mol Cell Endocrinol 2012; 360:68-75. [PMID: 21986558 DOI: 10.1016/j.mce.2011.09.038] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Accepted: 09/26/2011] [Indexed: 10/17/2022]
Abstract
Patients with advanced prostate cancer initially respond very well to medical or surgical castration. Despite a good initial response, the disease progresses to a castration-resistant state. Castration-resistant prostate cancer (CRPC) remains addicted to androgen receptor signaling. The addition of conventional anti-androgen agents, such as bicalutamide, only provides a transient benefit. This has led to a search for further drug targets. Cytochrome P450 17 (CYP17) is an enzyme that is vital for the adrenal biosynthesis of androgens. The CYP17 inhibitor abiraterone acetate has a proven benefit in a phase III randomized trial and other CYP17 inhibitors are currently being evaluated. The novel antiandrogen MDV3100 is a small molecule androgen receptor antagonist with promising activity. Heat shock proteins (HSPs) bind to the androgen receptor and modify its activity. Several HSP inhibitors are under evaluation in clinical trials. This review explores the role of CYP17 inhibitors, MDV3100, and HSP inhibitors.
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Affiliation(s)
- Andrew Eichholz
- Institute of Cancer Research, 15 Cotswold Road, Sutton, Surrey SM2 5NG, United Kingdom.
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28
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Ohlmann CH, Merseburger AS, Suttmann H, Schilling D, Trojan L, Kempkensteffen C, Corvin S, Mathers MJ, Bastian PJ. Novel options for the treatment of castration-resistant prostate cancer. World J Urol 2011; 30:495-503. [PMID: 22101903 DOI: 10.1007/s00345-011-0796-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2011] [Accepted: 11/04/2011] [Indexed: 01/06/2023] Open
Abstract
Docetaxel had been the only treatment of castration-resistant prostate cancer (CRPC) that demonstrated a survival benefit for the patients. After its approval, no considerable progress has been made for several years until cabazitaxel and abiraterone acetate demonstrated a significant survival benefit in phase III clinical trials. Apart from that several other new drugs appeared including inhibitors of the androgen receptor (MDV3100), endothelin receptor antagonists (atrasentan, zibotentan), bone-targeted drugs (denosumab, Alpharadin) and immunotherapies (sipuleucel-T) capable of improving the prognosis of patients with CRPC. Here, we review the most recent advances in the treatment of CRPC and highlight the most promising new agents currently being investigated in clinical trials.
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Affiliation(s)
- Carsten-H Ohlmann
- Department of Urology, Saarland University, Kirrbergerstrasse 1, Homburg/Saar, Germany.
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29
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Antonarakis ES, Armstrong AJ. Emerging therapeutic approaches in the management of metastatic castration-resistant prostate cancer. Prostate Cancer Prostatic Dis 2011; 14:206-18. [PMID: 21577233 PMCID: PMC4124621 DOI: 10.1038/pcan.2011.24] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Revised: 04/11/2011] [Accepted: 04/17/2011] [Indexed: 02/01/2023]
Abstract
Although treatment options for men with castration-resistant prostate cancer (CRPC) have improved with the recent and anticipated approvals of novel immunotherapeutic, hormonal, chemotherapeutic and bone-targeted agents, clinical benefit with these systemic therapies is transient and survival times remain unacceptably short. Thus, we devote the second section of this two-part review to discussing emerging therapeutic paradigms and research strategies that are entering phase II and III clinical testing for men with metastatic CRPC. We will discuss a range of emerging hormonal, immunomodulatory, antiangiogenic, epigenetic and cell survival pathway inhibitors in current clinical trials, with an emphasis on how these therapies may complement our existing treatment options.
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Affiliation(s)
- E S Antonarakis
- Prostate Cancer Research Program, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD 21231-1000, USA.
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30
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Vasaitis TS, Bruno RD, Njar VCO. CYP17 inhibitors for prostate cancer therapy. J Steroid Biochem Mol Biol 2011; 125:23-31. [PMID: 21092758 PMCID: PMC3047603 DOI: 10.1016/j.jsbmb.2010.11.005] [Citation(s) in RCA: 140] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2010] [Revised: 10/26/2010] [Accepted: 11/05/2010] [Indexed: 02/02/2023]
Abstract
Prostate cancer (PC) is now the second most prevalent cause of death in men in the USA and Europe. At present, the major treatment options include surgical or medical castration. These strategies cause ablation of the production of testosterone (T), dihydrotestosterone (DHT) and related androgens by the testes. However, because these procedures do not affect adrenal, prostate and other tissues' androgen production, they are often combined with androgen receptor antagonists to block their action. Indeed, recent studies have unequivocally established that in castration-resistant prostate cancer (CRPC) many androgen-regulated genes become re-expressed and tissue androgen levels increase despite low serum levels. Clearly, inhibition of the key enzyme which catalyzes the biosynthesis of androgens from pregnane precursors, 17α-hydroxy/17,20-lyase (hereafter referred to as CYP17) could prevent androgen production from all sources. Thus, total ablation of androgen production by potent CYP17 inhibitors may provide effective treatment of prostate cancer patients. This review highlights the role of androgen biosynthesis in the progression of prostate cancer and the impact of CYP17 inhibitors, such as ketoconazole, abiraterone acetate, VN/124-1 (TOK-001) and TAK-700 in the clinic and in clinical development. Article from the special issue on Targeted Inhibitors.
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Affiliation(s)
- Tadas S. Vasaitis
- Department of Medicine, University of Maryland School of Medicine; Baltimore, MD; and Department of Pharmaceutical Sciences, University of Maryland Eastern Shore, Princess Anne, MD, USA
| | | | - Vincent C. O. Njar
- Department of Pharmaceutical Sciences, Jefferson School of Pharmacy; Thomas Jefferson University, 130 South 9 Street, Philadelphia 19107, PA, USA
- Kimmel Cancer Center, Thomas Jefferson University, 130 South 9 Street, Philadelphia 19107, PA, USA
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31
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Kaku T, Tsujimoto S, Matsunaga N, Tanaka T, Hara T, Yamaoka M, Kusaka M, Tasaka A. 17,20-Lyase inhibitors. Part 3: Design, synthesis, and structure–activity relationships of biphenylylmethylimidazole derivatives as novel 17,20-lyase inhibitors. Bioorg Med Chem 2011; 19:2428-42. [DOI: 10.1016/j.bmc.2011.02.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2010] [Revised: 02/04/2011] [Accepted: 02/05/2011] [Indexed: 10/18/2022]
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32
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Kaku T, Matsunaga N, Ojida A, Tanaka T, Hara T, Yamaoka M, Kusaka M, Tasaka A. 17,20-Lyase inhibitors. Part 4: Design, synthesis and structure–activity relationships of naphthylmethylimidazole derivatives as novel 17,20-lyase inhibitors. Bioorg Med Chem 2011; 19:1751-70. [DOI: 10.1016/j.bmc.2011.01.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2010] [Revised: 01/07/2011] [Accepted: 01/11/2011] [Indexed: 01/29/2023]
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33
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34
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Haider SM, Patel JS, Poojari CS, Neidle S. Molecular modeling on inhibitor complexes and active-site dynamics of cytochrome P450 C17, a target for prostate cancer therapy. J Mol Biol 2010; 400:1078-98. [PMID: 20595043 DOI: 10.1016/j.jmb.2010.05.069] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2010] [Revised: 05/21/2010] [Accepted: 05/27/2010] [Indexed: 10/19/2022]
Abstract
A molecular model for the P450 enzyme cytochrome P450 C17 (CYP17) is presented based on sequence alignments of multiple template structures and homology modeling. This enzyme plays a central role in the biosynthesis of testosterone and is emerging as a major target in prostate cancer, with the recently developed inhibitor abiraterone currently in advanced clinical trials. The model is described in detail, together with its validation, by providing structural explanations to available site-directed mutagenesis data. The CYP17 molecule in this model is in the form of a triangular prism, with an edge of approximately 55 A and a thickness of approximately 37 A. It is predominantly helical, comprising 13 alpha helices interspersed by six 3(10) helices and 11 beta-sheets. Multinanosecond molecular dynamics simulations in explicit solvent have been carried out, and principal components analysis has been used to reveal the details of dynamics around the active site. Coarse-grained methods have also been used to verify low-frequency motions, which have been correlated with active-site gating. The work also describes the results of docking synthetic inhibitors, including the drug abiraterone and the natural substrate pregnenolone, in the CYP17 active site together with molecular dynamics simulations on the complexes.
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Affiliation(s)
- Shozeb M Haider
- CRUK Biomolecular Structure Group, The School of Pharmacy, University of London, 29-39 Brunswick Square, London WC1N 1AX, UK
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35
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Miranda PO, Gundersen LL. Synthesis of imidazole derivatives with antimycobacterial activity. Arch Pharm (Weinheim) 2009; 343:40-7. [PMID: 19957278 DOI: 10.1002/ardp.200900149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
4-Substituted 1-(p-methoxybenzyl)imidazoles were designed and synthesized in order to mimic parts of the structure of highly potent antimycobacterial 6-aryl-9-(p-methoxybenzyl)purines. 4-Haloimidazoles were subjected to Pd-catalyzed cross-coupling in order to introduce a (hetero)aryl group, or they were converted to Grignard reagents and reacted with (hetero)arylaldehydes. Further transformations of the adducts gave a variety of potential antimycobacterials with different "spacers" between the imidazole and (hetero)aryl group. The adduct from furfural was rearranged to a cyclopentenone derivative when treated with methanol under acidic conditions. Several target compounds exhibited antimycobacterial activity in vitro (IC(90 )13 microg/mL for the best inhibitors), but they were not as active as the most potent purines and pyrimidines synthesized before.
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Affiliation(s)
- Pedro O Miranda
- Department of Chemistry, University of Oslo, Blindern, Oslo, Norway
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36
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37
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Nishino H, Cong ZQ. Synthesis of Unusual Naphtho[2,1-b]furans and Novel 1H-Benz[e]indolinones via Selective Intramolecular Cyclization. HETEROCYCLES 2009. [DOI: 10.3987/com-08-11515] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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38
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Pinto-Bazurco Mendieta MAE, Negri M, Jagusch C, Müller-Vieira U, Lauterbach T, Hartmann RW. Synthesis, biological evaluation, and molecular modeling of abiraterone analogues: novel CYP17 inhibitors for the treatment of prostate cancer. J Med Chem 2008; 51:5009-18. [PMID: 18672868 DOI: 10.1021/jm800355c] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Abiraterone, a steroidal cytochrome P450 17alpha-hydroxylase-17,20-lyase inhibitor (CYP17), is currently undergoing phase II clinical trials as a potential drug for the treatment of androgen-dependent prostate cancer. Since steroidal compounds often show side effects attributable to their structure, we have tried to replace the sterane scaffold by nonsteroidal core structures. The design and synthesis of 20 new abiraterone mimetics are described. Their activities have been tested with recombinant human CYP17 expressed in E. coli. Promising compounds were further evaluated for selectivity against CYP11B1, CYP11B2, and the hepatic CYP3A4. Compounds 19 and 20 showed comparable activity to abiraterone (IC50 values of 144 and 64 nM vs 72 nM) and similar or even better selectivity against the other CYP enzymes. Selected compounds were also docked into our homology model, and the same binding modes as for abiraterone were found.
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39
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Hu Q, Negri M, Jahn-Hoffmann K, Zhuang Y, Olgen S, Bartels M, Müller-Vieira U, Lauterbach T, Hartmann RW. Synthesis, biological evaluation, and molecular modeling studies of methylene imidazole substituted biaryls as inhibitors of human 17α-hydroxylase-17,20-lyase (CYP17)—Part II: Core rigidification and influence of substituents at the methylene bridge. Bioorg Med Chem 2008; 16:7715-27. [DOI: 10.1016/j.bmc.2008.07.011] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2008] [Revised: 06/24/2008] [Accepted: 07/02/2008] [Indexed: 11/16/2022]
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40
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Kawakami JI, Kimura K, Yamaoka M. A Concise Synthesis of Racemic 1-(6,7-Dimethoxy-2-naphthyl)-1-(1H-imidazol-4-yl)-2-methylpropan-1-ol for a Potent C17,20-Lyase Inhibitor. Org Process Res Dev 2007. [DOI: 10.1021/op060171+] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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41
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Kotha S, Mandal K, Tiwari A, Mobin SM. Diversity-Oriented Approach to Biologically Relevant Molecular Frameworks Starting with β-Naphthol and Using the Claisen Rearrangement and Olefin Metathesis as Key Steps. Chemistry 2006; 12:8024-38. [PMID: 16983708 DOI: 10.1002/chem.200600540] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A diversity-oriented approach for the synthesis of various structurally different molecular frameworks from readily accessible and common precursors is described. A Claisen rearrangement followed by ring-closing metathesis or ethylene-promoted ring-closing enyne metathesis has been utilized as the key synthetic transformation to generate naphthoxepine derivatives. The ring-closing metathesis approach has also been used to generate spirocyclic compounds and the pleiadene framework.
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Affiliation(s)
- Sambasivarao Kotha
- Department of Chemistry, Indian Institute of Technology, Bombay, Powai, Mumbai-400 076, India.
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42
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Frija LM, Cristiano MLS, Guimarães EM, Martins NC, Loureiro RM, Bickley JF. Palladium-catalysed reduction of heteroaromatic naphthyl ethers: Structural effects on reactivity. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.molcata.2005.08.022] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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43
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Kotha S, Mandal K, Deb AC, Banerjee S. Microwave-assisted Claisen rearrangement on a silica gel support. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.11.012] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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