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Yagura K, Enomoto Y, Iwata T. Synthesis of fully divanillic acid-based aromatic polyamides and their thermal and mechanical properties. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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2
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Shioiri T, Ishihara K, Matsugi M. Cutting edge of diphenyl phosphorazidate (DPPA) as a synthetic reagent – A fifty-year odyssey. Org Chem Front 2022. [DOI: 10.1039/d2qo00403h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Recent developments of diphenyl phosphorazidate (DPPA, (C6H5O)2P(O)N3) has been reviewed.
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Affiliation(s)
- Takayuki Shioiri
- Faculty of Agriculture, Meijo University, Shiogamaguchi, Tempaku, Nagoya 468-8502, Japan
| | - Kotaro Ishihara
- Faculty of Agriculture, Meijo University, Shiogamaguchi, Tempaku, Nagoya 468-8502, Japan
| | - Masato Matsugi
- Faculty of Agriculture, Meijo University, Shiogamaguchi, Tempaku, Nagoya 468-8502, Japan
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3
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Pontón I, Sánchez-García D. Preparation of porphyrin and phthalocyanine conjugates for biomedical applications. J PORPHYR PHTHALOCYA 2021. [DOI: 10.1142/s1088424621300068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The aim of this review is to offer a succinct overview of the main synthetic techniques used in the preparation of conjugates containing porphyrins, including chlorins and bacteriochlorins and phthalocyanines for biomedical applications and photodynamic therapy (PDT). To illustrate the conjugation techniques representative examples from the literature will be presented.
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Affiliation(s)
- Iris Pontón
- Grup d’Enginyeria de Materials (GEMAT), Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain
| | - David Sánchez-García
- Grup d’Enginyeria de Materials (GEMAT), Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain
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4
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Zengin N, Göksu H, Şen F. Chemoselective hydrogenation of aromatic nitro compounds in the presence of homogeneous Pd based catalysts. CHEMOSPHERE 2021; 282:130887. [PMID: 34087559 DOI: 10.1016/j.chemosphere.2021.130887] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 05/01/2021] [Accepted: 05/08/2021] [Indexed: 06/12/2023]
Abstract
The chemoselective reduction of aromatic nitro compounds to amine derivatives was easily performed with remarkable yields under ultrasonic conditions in a H2O/MeOH mixture (v/v = 1/4). In this process, commercially available BINAP.PdCl2 and NaBH4 were used as homogenous catalysts and the hydrogen source, respectively. The developed method has a high economic value and can be adapted to the industry. A variety of nitroarene derivatives were reacted by undergoing the BINAP.PdCl2 catalyzed reduction reaction. All nitroarenes were selectively hydrogenated to aromatic primary amines with quantitative yields in 15 min. The obtained primary amines were determined by 1H and 13C nuclear magnetic resonance spectroscopy.
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Affiliation(s)
- Nursefa Zengin
- Kaynasli Vocational College, Düzce University, Düzce, 81900, Turkey
| | - Haydar Göksu
- Kaynasli Vocational College, Düzce University, Düzce, 81900, Turkey.
| | - Fatih Şen
- Sen Research Group, Department of Biochemistry, Dumlupınar University, 43100, Kütahya, Turkey.
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5
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Lizza JR, Bremerich M, McCabe SR, Wipf P. 2,2,6,6-Tetramethylpiperidin-1-yloxycarbonyl: A Protecting Group for Primary, Secondary, and Heterocyclic Amines. Org Lett 2018; 20:6760-6764. [DOI: 10.1021/acs.orglett.8b02874] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Joseph R. Lizza
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | | | - Stephanie R. McCabe
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Peter Wipf
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
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6
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Piras AM, Zambito Y, Burgalassi S, Monti D, Tampucci S, Terreni E, Fabiano A, Balzano F, Uccello-Barretta G, Chetoni P. A water-soluble, mucoadhesive quaternary ammonium chitosan-methyl-β-cyclodextrin conjugate forming inclusion complexes with dexamethasone. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 29:42. [PMID: 29603020 DOI: 10.1007/s10856-018-6048-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 03/15/2018] [Indexed: 06/08/2023]
Abstract
The ocular bioavailability of lipophilic drugs, such as dexamethasone, depends on both drug water solubility and mucoadhesion/permeation. Cyclodextrins and chitosan are frequently employed to either improve drug solubility or prolong drug contact onto mucosae, respectively. Although the covalent conjugation of cyclodextrin and chitosan brings to mucoadhesive drug complexes, their water solubility is restricted to acidic pHs. This paper describes a straightforward grafting of methyl-β-cyclodextrin (MCD) on quaternary ammonium chitosan (QA-Ch60), mediated by hexamethylene diisocyanate. The resulting product is a water-soluble chitosan derivative, having a 10-atom long spacer between the quaternized chitosan and the cyclodextrin. The derivative is capable of complexing the model drug dexamethasone and stable complexes were also observed for the lyophilized products. Furthermore, the conjugate preserves the mucoadhesive properties typical of quaternized chitosan and its safety as solubilizing excipient for ophthalmic applications was preliminary assessed by in vitro cytotoxicity evaluations. Taken as a whole, the observed features appear promising for future processing of the developed product into 3D solid forms, such as controlled drug delivery systems, films or drug eluting medical devices.
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Affiliation(s)
- Anna Maria Piras
- Department of Pharmacy, University of Pisa, via Bonanno 33, 56126, Pisa, Italy.
| | - Ylenia Zambito
- Department of Pharmacy, University of Pisa, via Bonanno 33, 56126, Pisa, Italy
| | - Susi Burgalassi
- Department of Pharmacy, University of Pisa, via Bonanno 33, 56126, Pisa, Italy
| | - Daniela Monti
- Department of Pharmacy, University of Pisa, via Bonanno 33, 56126, Pisa, Italy
| | - Silvia Tampucci
- Department of Pharmacy, University of Pisa, via Bonanno 33, 56126, Pisa, Italy
| | - Eleonora Terreni
- Department of Pharmacy, University of Pisa, via Bonanno 33, 56126, Pisa, Italy
| | - Angela Fabiano
- Department of Pharmacy, University of Pisa, via Bonanno 33, 56126, Pisa, Italy
| | - Federica Balzano
- Department of Chemistry and Industrial Chemistry, University of Pisa, via Moruzzi 13, 56124, Pisa, Italy
| | - Gloria Uccello-Barretta
- Department of Chemistry and Industrial Chemistry, University of Pisa, via Moruzzi 13, 56124, Pisa, Italy
| | - Patrizia Chetoni
- Department of Pharmacy, University of Pisa, via Bonanno 33, 56126, Pisa, Italy
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7
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Preparation of 2,3-trans-substituted piperidines from optically active β-amino-α-methylene esters: Synthesis of optically active (2S,3R)-(−)-epi-CP-99,994. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.06.054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Cateni F, Zacchigna M, Procida G, Zilic J, Cordone A, Zanfardino A, Varcamonti M. Cholane and Lanostane Derivatives: Antimicrobial Evaluation. ChemistrySelect 2016. [DOI: 10.1002/slct.201600556] [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)
- F. Cateni
- Department of Chemical and Pharmaceutical Sciences; University of Trieste, P.zle Europa, 1; 34127 Trieste Italy
| | - M. Zacchigna
- Department of Chemical and Pharmaceutical Sciences; University of Trieste, P.zle Europa, 1; 34127 Trieste Italy
| | - G. Procida
- Department of Chemical and Pharmaceutical Sciences; University of Trieste, P.zle Europa, 1; 34127 Trieste Italy
| | - J. Zilic
- Department of Chemical and Pharmaceutical Sciences; University of Trieste, P.zle Europa, 1; 34127 Trieste Italy
| | - A. Cordone
- Department of Biology; University of Naples Federico II; Complesso Universitario di Monte S. Angelo; Via Cinthia - Edificio 7 80126 Napoli Italy
| | - A. Zanfardino
- Department of Biology; University of Naples Federico II; Complesso Universitario di Monte S. Angelo; Via Cinthia - Edificio 7 80126 Napoli Italy
| | - M. Varcamonti
- Department of Biology; University of Naples Federico II; Complesso Universitario di Monte S. Angelo; Via Cinthia - Edificio 7 80126 Napoli Italy
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9
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Li D, Wu T, Liang K, Xia C. Curtius-like Rearrangement of an Iron–Nitrenoid Complex and Application in Biomimetic Synthesis of Bisindolylmethanes. Org Lett 2016; 18:2228-31. [PMID: 27116426 DOI: 10.1021/acs.orglett.6b00864] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dashan Li
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ting Wu
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kangjiang Liang
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chengfeng Xia
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- Key
Laboratory of Medicinal Chemistry for Natural Resources, Ministry
of Education, Yunnan University, Kunming 650091, China
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10
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Li M, Xing P, Jiang B. A novel and efficient route to azabicycles via the isocyanate-mediated twofold cyclization. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.01.050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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11
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12
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Göksu H. Recyclable aluminium oxy-hydroxide supported Pd nanoparticles for selective hydrogenation of nitro compounds via sodium borohydride hydrolysis. NEW J CHEM 2015. [DOI: 10.1039/c5nj01492a] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The method for the reduction of nitroarenes developed in the presence of PdAlO(OH) NPs is simple, efficient and eco-friendly.
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Affiliation(s)
- Haydar Göksu
- Kaynasli Vocational College
- Düzce University
- Düzce 81900
- Turkey
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13
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Xia L, Idhayadhulla A, Lee YR, Wee YJ, Kim SH. Anti-tyrosinase, antioxidant, and antibacterial activities of novel 5-hydroxy-4-acetyl-2,3-dihydronaphtho[1,2-b]furans. Eur J Med Chem 2014; 86:605-12. [DOI: 10.1016/j.ejmech.2014.09.025] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Revised: 09/05/2014] [Accepted: 09/08/2014] [Indexed: 12/19/2022]
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14
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Roberts CD, Peat AJ. HCV Replication Inhibitors That Interact with NS4B. SUCCESSFUL STRATEGIES FOR THE DISCOVERY OF ANTIVIRAL DRUGS 2013. [DOI: 10.1039/9781849737814-00111] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
We describe the discovery, development and in vivo activity of small molecules that inhibits HCV replication via direct interaction with the viral NS4B protein. The inhibitors were identified through a phenotypic, cell based, high throughput screen using the HCV subgenomic replicon. Compounds were then optimized to extremely high potency and pharmacokinetics. Mechanistic data generated suggests a hypothesis wherein the compounds described function by binding to NS4B, preventing the formation of the characteristic HCV induced sub‐cellular membranous web required for viral replication. Finally, in vivo proof of mechanism was established by employing a chimeric “humanized” mouse model of HCV infection to demonstrate for the first time that a small molecule with high in vitro affinity for NS4B can inhibit viral replication in vivo.
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Affiliation(s)
- Christopher D. Roberts
- GlaxoSmithKline Research & Development Infectious Diseases Therapeutic Area Unit, 5 Moore Drive, Research Triangle Park, NC 27709 USA
| | - Andrew J. Peat
- GlaxoSmithKline Research & Development Infectious Diseases Therapeutic Area Unit, 5 Moore Drive, Research Triangle Park, NC 27709 USA
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15
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Miller JF, Chong PY, Shotwell JB, Catalano JG, Tai VWF, Fang J, Banka AL, Roberts CD, Youngman M, Zhang H, Xiong Z, Mathis A, Pouliot JJ, Hamatake RK, Price DJ, Seal JW, Stroup LL, Creech KL, Carballo LH, Todd D, Spaltenstein A, Furst S, Hong Z, Peat AJ. Hepatitis C Replication Inhibitors That Target the Viral NS4B Protein. J Med Chem 2013; 57:2107-20. [DOI: 10.1021/jm400125h] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- John F. Miller
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Pek Y. Chong
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - J. Brad Shotwell
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - John G. Catalano
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Vincent W.-F. Tai
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Jing Fang
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Anna L. Banka
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Christopher D. Roberts
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Michael Youngman
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Huichang Zhang
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Zhiping Xiong
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Amanda Mathis
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Jeffery J. Pouliot
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Robert K. Hamatake
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Daniel J. Price
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - John W. Seal
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Lisa L. Stroup
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Katrina L. Creech
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Luz H. Carballo
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Dan Todd
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Andrew Spaltenstein
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Sylvia Furst
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Zhi Hong
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
| | - Andrew J. Peat
- GlaxoSmithKline Research and Development, 5 Moore Drive, Research Triangle Park,
North Carolina 27709, United States
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16
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Gluyas JBG, Burschka C, Dörrich S, Vallet J, Gronemeyer H, Tacke R. Disila-analogues of the synthetic retinoids EC23 and TTNN: synthesis, structure and biological evaluation. Org Biomol Chem 2012; 10:6914-29. [PMID: 22814352 DOI: 10.1039/c2ob25989c] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Silicon chemistry offers the potential to tune the effects of biologically active organic molecules. Subtle changes in the molecular backbone caused by the exchange of a carbon atom for a silicon atom (sila-substitution) can significantly alter the biological properties. In this study, the biological effects of a two-fold sila-substitution in the synthetic retinoids EC23 (4-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-ylethynyl)benzoic acid (4a)) and TTNN (6-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)-2-naphthoic acid (7a)) as well as their corresponding analogues with an indane instead of a 1,2,3,4-tetrahydronaphthalene skeleton (compounds 5a and 8a) were investigated. Two-fold C/Si exchange in 4a, 5a, 7a and 8a leads to the silicon-analogues disila-EC23 (4b), 5b, disila-TTNN (7b) and 8b, which contain a 1,2,3,4-tetrahydro-1,4-disilanaphthalene (4b, 7b) or 1,3-disilaindane skeleton (5b, 8b). Exchange of the SiCH(2)Si moiety of 5b for an SiOSi fragment leads to the disiloxane 6 (2-oxa-1,3-disilaindane skeleton). The EC23 derivative 5a, the TTNN derivative 8a and the silicon-containing analogues 4b, 5b, 6, 7b and 8b were synthesised, and the biological properties of the C/Si pairs 4a/4b, 5a/5b, 7a/7b and 8a/8b and compound 6 were evaluated in vivo using RAR isotype-selective reporter cells. EC23 (4a) and its derivatives disila-EC23 (4b), 5a, 5b and 6 are very potent RAR agonists, which are even more potent than the powerful reference compound TTNPB. Disila-substitution of EC23 (4a) and 5a leads to a moderate decrease in RARα activation, whereas the RARβ,γ activation is almost not affected. In contrast, two-fold C/Si exchange in the weak retinoid agonist TTNN (7a) and 8a resulted in considerably different effects: a significant increase (7a→7b) and almost no change (8a→8b) in transcription activation potential for all three RAR isotypes. Disila-TTNN (7b) can be regarded as a powerful RARβ,γ-selective retinoid.
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Affiliation(s)
- Josef B G Gluyas
- Universität Würzburg, Institut für Anorganische Chemie, Am Hubland, D-97074 Würzburg, Germany
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17
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Ma B, Guckian KM, Lin EYS, Lee WC, Scott D, Kumaravel G, Macdonald TL, Lynch KR, Black C, Chollate S, Hahm K, Hetu G, Jin P, Luo Y, Rohde E, Rossomando A, Scannevin R, Wang J, Yang C. Stereochemistry-activity relationship of orally active tetralin S1P agonist prodrugs. Bioorg Med Chem Lett 2010; 20:2264-9. [PMID: 20188554 PMCID: PMC2843818 DOI: 10.1016/j.bmcl.2010.02.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2009] [Revised: 01/31/2010] [Accepted: 02/02/2010] [Indexed: 11/28/2022]
Abstract
Modifying FTY720, an immunosuppressant modulator, led to a new series of well phosphorylated tetralin analogs as potent S1P1 receptor agonists. The stereochemistry effect of tetralin ring was probed, and (-)-(R)-2-amino-2-((S)-6-octyl-1,2,3,4-tetrahydronaphthalen-2-yl)propan-1-ol was identified as a good SphK2 substrate and potent S1P1 agonist with good oral bioavailability.
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Affiliation(s)
- Bin Ma
- BiogenIdec Inc., 14 Cambridge Center, Cambridge, MA 02142, USA.
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