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Haritha Kumari A, Jagadesh Kumar J, Sharadha N, Rama Krishna G, Jannapu Reddy R. Visible-Light-Induced Radical Sulfonylative-Cyclization Cascade of 1,6-Enynol Derivatives with Sulfinic Acids: A Sustainable Approach for the Synthesis of 2,3-Disubstituted Benzoheteroles. CHEMSUSCHEM 2024:e202400227. [PMID: 38650432 DOI: 10.1002/cssc.202400227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/22/2024] [Accepted: 04/23/2024] [Indexed: 04/25/2024]
Abstract
Benzoheteroles are promising structural scaffolds in the realm of medicinal chemistry, but sustainable synthesis of 2,3-difunctionalized benzoheterole derivatives is still in high demand. Indeed, we have conceptually rationalized the intrinsic reactivity of propargylic-enyne systems for the flexible construction of 2,3-disubstituted benzoheteroles through radical sulfonylative-cyclization cascade under organophotoredox catalysis. We hereby report an efficient visible-light-induced sulfonyl radical-triggered cyclization of 1,6-enynols with sulfinic acids under the dual catalytic influence of 4CzIPN and NiBr2⋅DME, which led to the formation of 2,3-disubstituted benzoheteroles in good to high yields. Additionally, the Rose Bengal (RB)-catalyzed radical sulfonylative-cycloannulation of acetyl-derived 1,6-enynols with sulfinic acids under blue LED irradiation allowed to access 3-(E-styryl)-derived benzofurans and benzothiophenes in moderate to good yields. The scope and limitations of the present strategies were successfully established using different classes of 1,6-enynols and sulfinic acids bearing various sensitive functional groups, yielding the desired products in a highly stereoselective fashion. Plausible mechanistic pathways were also proposed based on the current experimental and control experiments.
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Affiliation(s)
- Arram Haritha Kumari
- Department of Chemistry, University College of Science, Osmania University, Hyderabad, 500 007, India
| | - Jangam Jagadesh Kumar
- Department of Chemistry, University College of Science, Osmania University, Hyderabad, 500 007, India
| | - Nunavath Sharadha
- Department of Chemistry, University College of Science, Osmania University, Hyderabad, 500 007, India
| | - Gamidi Rama Krishna
- Centre for X-ray Crystallography, CSIR-National Chemical Laboratory, Pune, 411 008, India
| | - Raju Jannapu Reddy
- Department of Chemistry, University College of Science, Osmania University, Hyderabad, 500 007, India
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Khanal HD, Perumal M, Lee YR. Annulation strategies for diverse heterocycles via the reductive transformation of 2-nitrostyrenes. Org Biomol Chem 2022; 20:7675-7693. [PMID: 35971908 DOI: 10.1039/d2ob01149b] [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
Reduction of the stable nitro group is a fundamental and widely used transformation for the construction of complex and functionalized heterocyclic architectures. The unfolding of the reactivity of the nitro group in the 2-nitrostyrene moiety not only triggers the formation of carbon-nitrogen bonds, but also offers the opportunity for annulation and heteroannulation, thereby providing a cascade process for the synthesis of highly conjugated natural and unnatural molecules. In this review, we comprehensively discuss the use of 2-nitrostyrene motifs in the synthesis of various N-heterocycles. We offer readers an overview of the synthetic achievements achieved to date, highlighting their important features, reactivities, and mechanisms.
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Affiliation(s)
- Hari Datta Khanal
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.
| | - Muthuraja Perumal
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.
| | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.
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3
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Hülskötter K, Jin W, Allnoch L, Hansmann F, Schmidtke D, Rohn K, Flügel A, Lühder F, Baumgärtner W, Herder V. Double-edged effects of tamoxifen-in-oil-gavage on an infectious murine model for multiple sclerosis. Brain Pathol 2021; 31:e12994. [PMID: 34137105 PMCID: PMC8549030 DOI: 10.1111/bpa.12994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 05/05/2021] [Accepted: 05/06/2021] [Indexed: 12/13/2022] Open
Abstract
Tamoxifen gavage is a commonly used method to induce genetic modifications in cre-loxP systems. As a selective estrogen receptor modulator (SERM), the compound is known to have immunomodulatory and neuroprotective properties in non-infectious central nervous system (CNS) disorders. It can even cause complete prevention of lesion development as seen in experimental autoimmune encephalitis (EAE). The effect on infectious brain disorders is scarcely investigated. In this study, susceptible SJL mice were infected intracerebrally with Theiler's murine encephalomyelitis virus (TMEV) and treated three times with a tamoxifen-in-oil-gavage (TOG), resembling an application scheme for genetically modified mice, starting at 0, 18, or 38 days post infection (dpi). All mice developed 'TMEV-induced demyelinating disease' (TMEV-IDD) resulting in inflammation, axonal loss, and demyelination of the spinal cord. TOG had a positive effect on the numbers of oligodendrocytes and oligodendrocyte progenitor cells, irrespective of the time point of application, whereas late application (starting 38 dpi) was associated with increased demyelination of the spinal cord white matter 85 dpi. Furthermore, TOG had differential effects on the CD4+ and CD8+ T cell infiltration into the CNS, especially a long lasting increase of CD8+ cells was detected in the inflamed spinal cord, depending of the time point of TOG application. Number of TMEV-positive cells, astrogliosis, astrocyte phenotype, apoptosis, clinical score, and motor function were not measurably affected. These data indicate that tamoxifen gavage has a double-edged effect on TMEV-IDD with the promotion of oligodendrocyte differentiation and proliferation, but also increased demyelination, depending on the time point of application. The data of this study suggest that tamoxifen has also partially protective functions in infectious CNS disease. These effects should be considered in experimental studies using the cre-loxP system, especially in models investigating neuropathologies.
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Affiliation(s)
- Kirsten Hülskötter
- Department of PathologyUniversity of Veterinary Medicine HannoverHannoverGermany
- Center for Systems NeuroscienceHannoverGermany
| | - Wen Jin
- Department of PathologyUniversity of Veterinary Medicine HannoverHannoverGermany
- Center for Systems NeuroscienceHannoverGermany
| | - Lisa Allnoch
- Department of PathologyUniversity of Veterinary Medicine HannoverHannoverGermany
- Center for Systems NeuroscienceHannoverGermany
| | - Florian Hansmann
- Department of PathologyUniversity of Veterinary Medicine HannoverHannoverGermany
- Center for Systems NeuroscienceHannoverGermany
- Institute of Veterinary PathologyLeipzig UniversityLeipzigGermany
| | - Daniel Schmidtke
- Center for Systems NeuroscienceHannoverGermany
- Institute of ZoologyUniversity of Veterinary Medicine HannoverHannoverGermany
| | - Karl Rohn
- Institute of Biometry, Epidemiology, and Information ProcessingUniversity of Veterinary Medicine HannoverHannoverGermany
| | - Alexander Flügel
- Center for Systems NeuroscienceHannoverGermany
- Institute for Neuroimmunology and Multiple Sclerosis ResearchUniversity Medical Center GöttingenGöttingenGermany
| | - Fred Lühder
- Institute for Neuroimmunology and Multiple Sclerosis ResearchUniversity Medical Center GöttingenGöttingenGermany
| | - Wolfgang Baumgärtner
- Department of PathologyUniversity of Veterinary Medicine HannoverHannoverGermany
- Center for Systems NeuroscienceHannoverGermany
| | - Vanessa Herder
- Department of PathologyUniversity of Veterinary Medicine HannoverHannoverGermany
- Center for Systems NeuroscienceHannoverGermany
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Irgashev RA, Steparuk AS, Rusinov GL. Synthesis of 6H,7H-chromeno[3′,4′:4,5]thieno[3,2-b]indol-6-ones using the Fischer indolization reaction. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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5
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Popova EA, Kornev AA, Shmakov SV, Nepochatyi GD, Kotyunina OA, Petrov ML, Boitsov VM, Stepakov AV. In Vitro Activity of Organochalcogen Compounds: II. Cytotoxic Effect of 2-Aminobenzo[b]thiophenes Against K562 and HeLa Tumor Cell Lines. RUSS J GEN CHEM+ 2020. [DOI: 10.1134/s107036322011033x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Petrov ML, Popova EA, Krivchun MN, Belyakov AV. Synthesis and Structure of the Copper(II) Chloride Complex with
(2-Bromophenyl)thioacetic Acid Morpholide. RUSS J GEN CHEM+ 2020. [DOI: 10.1134/s1070363220050163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ervin SM, Hanley RP, Lim L, Walton WG, Pearce KH, Bhatt AP, James LI, Redinbo MR. Targeting Regorafenib-Induced Toxicity through Inhibition of Gut Microbial β-Glucuronidases. ACS Chem Biol 2019; 14:2737-2744. [PMID: 31663730 DOI: 10.1021/acschembio.9b00663] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Regorafenib (Stivarga) is an oral small molecule kinase inhibitor used to treat metastatic colorectal cancer, hepatocellular carcinomas, and gastrointestinal stromal tumors. Diarrhea is one of the most frequently observed adverse reactions associated with regorafenib. This toxicity may arise from the reactivation of the inactive regorafenib-glucuronide to regorafenib by gut microbial β-glucuronidase (GUS) enzymes in the gastrointestinal tract. We sought to unravel the molecular basis of regorafenib-glucuronide processing by human intestinal GUS enzymes and to examine the potential inhibition of these enzymes. Using a panel of 31 unique gut microbial GUS enzymes derived from the 279 mapped from the human gut microbiome, we found that only four were capable of regorafenib-glucuronide processing. Using crystal structures as a guide, we pinpointed the molecular features unique to these enzymes that confer regorafenib-glucuronide processing activity. Furthermore, a pilot screen identified the FDA-approved drug raloxifene as an inhibitor of regorafenib reactivation by the GUS proteins discovered. Novel synthetic raloxifene analogs exhibited improved potency in both in vitro and ex vivo studies. Taken together, these data establish that regorafenib reactivation is exclusively catalyzed by gut microbial enzymes and that these enzymes are amenable to targeted inhibition. Our results unravel key molecular details of regorafenib reactivation in the GI tract and provide a potential pathway to improve clinical outcomes with regorafenib.
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Affiliation(s)
- Samantha M. Ervin
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Ronan P. Hanley
- Center for Integrative Chemical Biology and Drug Discovery, Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Lauren Lim
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - William G. Walton
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Kenneth H. Pearce
- Center for Integrative Chemical Biology and Drug Discovery, Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Aadra P. Bhatt
- Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Lindsey I. James
- Center for Integrative Chemical Biology and Drug Discovery, Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Matthew R. Redinbo
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
- Integrated Program for Biological and Genome Sciences and Departments of Biochemistry and Microbiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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Zhang J, Zhuang Y, Ma Y, Yang X, Szostak M. Palladium‐Catalyzed Synthesis of Benzothiophenes via Cross‐Dehydrogenative Coupling of 4‐Arylthiocoumarins and Pyrones. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901058] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Jin Zhang
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Additives for IndustryShaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Yuyu Zhuang
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Additives for IndustryShaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Yangmin Ma
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Additives for IndustryShaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Xiufang Yang
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Additives for IndustryShaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Michal Szostak
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Additives for IndustryShaanxi University of Science and Technology Xi'an 710021 People's Republic of China
- Department of ChemistryRutgers University 73 Warren Street Newark NJ 07102 United States
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Makar S, Saha T, Swetha R, Gutti G, Kumar A, Singh SK. Rational approaches of drug design for the development of selective estrogen receptor modulators (SERMs), implicated in breast cancer. Bioorg Chem 2019; 94:103380. [PMID: 31757413 DOI: 10.1016/j.bioorg.2019.103380] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 10/18/2019] [Accepted: 10/21/2019] [Indexed: 12/20/2022]
Abstract
Drug discovery and development have gained momentum due to the rational drug design by engaging computational tools and bioinformatics methodologies. Bioisosteric replacements and hybrid molecular approaches are the other inventive processes, used by medicinal chemists for the desired modifications of leads for clinical drug candidates. SERMs, ought to produce inhibitory activity in breast, uterus and agonist activity in other tissues, are beneficial for estrogen-like actions. ER subtypes α and β are hormone dependent modulators of intracellular signaling and gene expression, and development of ER selective ligands could be an effective approach for treatment of breast cancer. This report has critically investigated the possible designing considerations of SERMs, their in silico interactions, and potent pharmacophore generation approaches viz. indole, restricted benzothiophene [3, 2-b] indole, carborane, xanthendione, combretastatin A-4, organometallic heterocycles, OBHS-SAHA hybrids, benzopyranones, tetrahydroisoquinolines, Dig G derivatives and their specifications in drug design and development, to rationally improve the understanding in drug discovery. This also includes various strategies for the development of dual inhibitors for the management of antiestrogenic resistance.
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Affiliation(s)
- Subhajit Makar
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi 221005, U.P, India
| | - Tanmay Saha
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi 221005, U.P, India
| | - Rayala Swetha
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi 221005, U.P, India
| | - Gopichand Gutti
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi 221005, U.P, India
| | - Ashok Kumar
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi 221005, U.P, India
| | - Sushil K Singh
- Pharmaceutical Chemistry Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi 221005, U.P, India.
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The naturally derived small compound Osthole inhibits osteoclastogenesis to prevent ovariectomy-induced bone loss in mice. Menopause 2019; 25:1459-1469. [PMID: 29944638 DOI: 10.1097/gme.0000000000001150] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE This study was to determine the bone protective effects and underlying mechanisms of Osthole (OT) in ovariectomized (OVX) mice. We found that the inhibitory effects of OT on receptor activator of nuclear factor kappa-B ligand (RANKL)-activated osteoclastogenesis are responsible for its bone protective effects in OVX mice. METHODS Eight-week-old mice were ovariectomized and OT (10 mg/kg/d) was intraperitoneally administrated to OVX mice 7 days after the surgery and were sacrificed at the end of the 3 months. Osteoclasts were generated from primary bone marrow macrophages (BMMs) to investigate the inhibitory effects of OT. The activity of RANKL-activated signaling was simultaneously analyzed in vitro and in vivo using immunohistochemistry, Western blot, and PCR assays. RESULTS OT dose dependently inhibited RANKL-mediated osteoclastogenesis in BMM cultures. OT administration attenuated bone loss (mg Ha/cm: 894.68 ± 33.56 vs 748.08 ± 19.51, P < 0.05) in OVX mice. OT inhibits osteoclastogenesis (Oc.N/per view area: 72 ± 4.3 vs 0.8 ± 0.4, P < 0.05) and bone resorption activity (bone resorbed percentages %, 48.56 ± 7.25 vs 3.25 ± 1.37, P < 0.05) from BMMs. Mechanistically, OT inhibited the expressions of nuclear factor of activated T-cells c1 (NFATc1) and c-Fos. Moreover, OT suppressed the expression of RANKL-induced osteoclast marker genes, including matrix metalloproteinase 9 (MMP9), Cathepsin K (Ctsk), tartrate-resistant acid phosphatase (TRAP), and carbonic anhydrase II (Car2). CONCLUSIONS OT inhibits RANKL-mediated osteoclastogenesis and prevents bone loss in OVX mice. Our findings revealed that OT is a potential new drug for treating postmenopausal osteoporosis.
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Getter T, Suh S, Hoang T, Handa JT, Dong Z, Ma X, Chen Y, Blackshaw S, Palczewski K. The selective estrogen receptor modulator raloxifene mitigates the effect of all- trans-retinal toxicity in photoreceptor degeneration. J Biol Chem 2019; 294:9461-9475. [PMID: 31073029 DOI: 10.1074/jbc.ra119.008697] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 05/08/2019] [Indexed: 12/19/2022] Open
Abstract
The retinoid cycle is a metabolic process in the vertebrate retina that continuously regenerates 11-cis-retinal (11-cisRAL) from the all-trans-retinal (atRAL) isomer. atRAL accumulation can cause photoreceptor degeneration and irreversible visual dysfunction associated with incurable blinding retinal diseases, such as Stargardt disease, retinitis pigmentosa (RP), and atrophic age-related macular degeneration (AMD). The underlying cellular mechanisms leading to retinal degeneration remain uncertain, although previous studies have shown that atRAL promotes calcium influx associated with cell apoptosis. To identify compounds that mitigate the effects of atRAL toxicity, here we developed an unbiased and robust image-based assay that can detect changes in intracellular calcium levels in U2OS cells. Using our assay in a high-throughput screen of 2,400 compounds, we noted that selective estrogen receptor modulators (SERMs) potently stabilize intracellular calcium and thereby counteract atRAL-induced toxicity. In a light-induced retinal degeneration mouse model (Abca4 -/- Rdh8 -/-), raloxifene (a benzothiophene-type scaffold SERM) prevented the onset of photoreceptor apoptosis and thus protected the retina from degeneration. The minor structural differences between raloxifene and one of its derivatives (Y 134) had a major impact on calcium homeostasis after atRAL exposure in vitro, and we verified this differential impact in vivo In summary, the SERM raloxifene has structural and functional neuroprotective effects in the retina. We propose that the highly sensitive image-based assay developed here could be applied for the discovery of additional drug candidates preventing photoreceptor degeneration.
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Affiliation(s)
- Tamar Getter
- From the Gavin Herbert Eye Institute, Department of Ophthalmology, University of California, Irvine, California 92697, .,the Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio 44106
| | - Susie Suh
- From the Gavin Herbert Eye Institute, Department of Ophthalmology, University of California, Irvine, California 92697.,the Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio 44106
| | - Thanh Hoang
- the Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - James T Handa
- the Wilmer Eye Institute, Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287
| | | | - Xiuli Ma
- Polgenix Inc., Irvine, California 92617
| | - Yuanyuan Chen
- the Department of Ophthalmology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, and.,the McGowan Institute of Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15213
| | - Seth Blackshaw
- the Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Krzysztof Palczewski
- From the Gavin Herbert Eye Institute, Department of Ophthalmology, University of California, Irvine, California 92697, .,the Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio 44106
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Popova EA, Lyapunova AG, Petrov ML, Panikorovskii TL, Androsov DA. A Convenient Approach to 2-Aminobenzo[b]chalcogenophenes Based on Copper-Catalyzed Transformation of 4-(2-Bromophenyl)-1,2,3-chalcogenodiazoles in the Presence of a Base and Amines. RUSS J GEN CHEM+ 2018. [DOI: 10.1134/s1070363218040126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Srinivas Lavanya Kumar M, Singh J, Manna SK, Maji S, Konwar R, Panda G. Diversity oriented synthesis of chromene-xanthene hybrids as anti-breast cancer agents. Bioorg Med Chem Lett 2018; 28:778-782. [DOI: 10.1016/j.bmcl.2017.12.065] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 12/20/2017] [Accepted: 12/29/2017] [Indexed: 01/08/2023]
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14
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Saraiah B, Gautam V, Acharya A, Pasha MA, Hiriyakkanavar I. One-Pot Synthesis of 2-(Aryl/Alkyl)amino-3-cyanobenzo[b
]thiophenes and Their Hetero-Fused Analogues by Pd-Catalyzed Intramolecular Oxidative C-H Functionalization/Arylthiolation. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700963] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Bonagiri Saraiah
- Department of Studies in Chemistry; Central College Campus; Bangalore University; Palace Road 560001 Bangalore India
| | - Vibha Gautam
- New Chemistry Unit; Central College Campus; Jawaharlal Nehru Centre for Advanced Scientific Research; Jakkur 560064 Bangalore India
| | - Anand Acharya
- New Chemistry Unit; Central College Campus; Jawaharlal Nehru Centre for Advanced Scientific Research; Jakkur 560064 Bangalore India
| | - Mohamed A. Pasha
- Department of Studies in Chemistry; Central College Campus; Bangalore University; Palace Road 560001 Bangalore India
| | - Ila Hiriyakkanavar
- New Chemistry Unit; Central College Campus; Jawaharlal Nehru Centre for Advanced Scientific Research; Jakkur 560064 Bangalore India
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Jana S, Verma A, Kadu R, Kumar S. Visible-light-induced oxidant and metal-free dehydrogenative cascade trifluoromethylation and oxidation of 1,6-enynes with water. Chem Sci 2017; 8:6633-6644. [PMID: 28989690 PMCID: PMC5625288 DOI: 10.1039/c7sc02556d] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 07/08/2017] [Indexed: 12/30/2022] Open
Abstract
Unprecedented light-induced oxidant and metal-free tandem radical cyclization–trifluoromethylation and dehydrogenative oxygenation of 1,6-enynes have been achieved using a photoredox catalyst, CF3SO2Na, and water as the oxygen source.
Generally, oxy-trifluoromethylation in olefins is achieved using oxidants and transition metal catalysts. However, labile olefins remain unexplored due to their incompatibility with harsh reaction conditions. Here, unprecedented light-induced oxidant and metal-free tandem radical cyclization–trifluoromethylation and dehydrogenative oxygenation of 1,6-enynes have been achieved using a photoredox catalyst, CF3SO2Na, and phenanthrene-9,10-dione (PQ), Langlois’ reagent (CF3SO2Na) and water as the oxygen source. This benign protocol allows for access to various CF3-containing C3-aryloyl/acylated benzofurans, benzothiophenes, and indoles. Moreover, the oxidized undesired products, which are inherently formed by the cleavage of the vinylic carbon and heteroatom bond, have been circumvented under oxidant free conditions. The mechanistic investigations by UV-visible and ESR spectroscopy, electrochemical studies, isotope labelling and density functional theory (DFT) suggest that light induced PQ produced a CF3 radical from CF3SO2Na. The generated CF3 radical adds to the alkene, followed by cyclization, to provide a vinylic radical that transfers an electron to PQ and generates a vinylic cation. Alternatively, electron transfer may occur from the CF3-added alkene moiety, forming a carbocation, which would undergo cationic cyclization to generate a vinylic carbocation. The subsequent addition of water to the vinylic cation, followed by the elimination of hydrogen gas, led to the formation of trifluoromethylated C3-aryloyl/acylated heterocycles.
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Affiliation(s)
- Sadhan Jana
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) Bhopal , Bhopal By-pass Road, Bhauri , Bhopal-462066 , India . ; http://home.iiserbhopal.ac.in/∼sangitkumar/
| | - Ajay Verma
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) Bhopal , Bhopal By-pass Road, Bhauri , Bhopal-462066 , India . ; http://home.iiserbhopal.ac.in/∼sangitkumar/
| | - Rahul Kadu
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) Bhopal , Bhopal By-pass Road, Bhauri , Bhopal-462066 , India . ; http://home.iiserbhopal.ac.in/∼sangitkumar/
| | - Sangit Kumar
- Department of Chemistry , Indian Institute of Science Education and Research (IISER) Bhopal , Bhopal By-pass Road, Bhauri , Bhopal-462066 , India . ; http://home.iiserbhopal.ac.in/∼sangitkumar/
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Pergomet JL, Bracca ABJ, Kaufman TS. Total syntheses of gerberinol I and the pterophyllins 2 and 4 using the Casnati–Skattebøl reaction under different conditions. Org Biomol Chem 2017; 15:7040-7049. [DOI: 10.1039/c7ob01471f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The total syntheses of the title compounds were achieved from a single coumarin precursor, taking advantage of the temperature-dependent divergent outcomes of the Casnati–Skattebøl reaction.
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Affiliation(s)
- Jorgelina L. Pergomet
- Instituto de Química Rosario (IQUIR
- CONICET-UNR)
- and Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- S2002LRK Rosario
| | - Andrea B. J. Bracca
- Instituto de Química Rosario (IQUIR
- CONICET-UNR)
- and Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- S2002LRK Rosario
| | - Teodoro S. Kaufman
- Instituto de Química Rosario (IQUIR
- CONICET-UNR)
- and Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- S2002LRK Rosario
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17
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Ngo TN, Dang TT, Villinger A, Langer P. Regioselective Synthesis of Naphtho-fused HeterocyclesviaPalladium(0)-Catalyzed Tandem Reaction ofN-Tosylhydrazones. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201501020] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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18
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Wittine K, Ratkaj I, Benci K, Suhina T, Mandić L, Ilić N, Pavelić SK, Pavelić K, Mintas M. The novel coumarin[3,2-c]thiophene and its hydroxamic acid and ureido derivatives: synthesis and cytostatic activity evaluations. Med Chem Res 2016. [DOI: 10.1007/s00044-016-1523-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Wang P, Dang L, Zhu BT. Use of computational modeling approaches in studying the binding interactions of compounds with human estrogen receptors. Steroids 2016; 105:26-41. [PMID: 26639429 DOI: 10.1016/j.steroids.2015.11.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 10/08/2015] [Accepted: 11/05/2015] [Indexed: 11/25/2022]
Abstract
Estrogens have a whole host of physiological functions in many human organs and systems, including the reproductive, cardiovascular, and central nervous systems. Many naturally-occurring compounds with estrogenic or antiestrogenic activity are present in our environment and food sources. Synthetic estrogens and antiestrogens are also important therapeutic agents. At the molecular level, estrogen receptors (ERs) mediate most of the well-known actions of estrogens. Given recent advances in computational modeling tools, it is now highly practical to use these tools to study the interaction of human ERs with various types of ligands. There are two common categories of modeling techniques: one is the quantitative structure activity relationship (QSAR) analysis, which uses the structural information of the interacting ligands to predict the binding site properties of a macromolecule, and the other one is molecular docking-based computational analysis, which uses the 3-dimensional structural information of both the ligands and the receptor to predict the binding interaction. In this review, we discuss recent results that employed these and other related computational modeling approaches to characterize the binding interaction of various estrogens and antiestrogens with the human ERs. These examples clearly demonstrate that the computational modeling approaches, when used in combination with other experimental methods, are powerful tools that can precisely predict the binding interaction of various estrogenic ligands and their derivatives with the human ERs.
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Affiliation(s)
- Pan Wang
- Department of Pharmacology, Toxicology and Therapeutics, School of Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA; Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Li Dang
- Department of Chemistry, South University of Science and Technology of China, Shenzhen, Guangdong 518055, China
| | - Bao-Ting Zhu
- Department of Pharmacology, Toxicology and Therapeutics, School of Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA; Department of Biology, South University of Science and Technology of China, Shenzhen, Guangdong 518055, China.
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20
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Petrov ML, Popova EA, Androsov DA. Copper(I) iodide-catalyzed synthesis of 1-benzothiophen-2-amines from 4-(2-bromophenyl)-1,2,3-thiadiazole. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2015. [DOI: 10.1134/s1070428015070283] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Androsov DA, Popova EA, Petrov ML, Ponyaev AI. Synthesis of 2-aminobenzo[b]thiophenes from 4-(2-haloaryl)-1,2,3-thiadiazoles. RUSS J GEN CHEM+ 2015. [DOI: 10.1134/s1070363214120093] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Zhang WL, Yue SN, Shen YM, Hu HY, Meng QH, Wu H, Liu Y. Copper(ii) bromide-catalyzed intramolecular decarboxylative functionalization to form a C(sp3)–O bond for the synthesis of furo[3,2-c]coumarins. Org Biomol Chem 2015; 13:3602-9. [DOI: 10.1039/c4ob02490g] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Copper(ii) bromide-catalyzed intramolecular decarboxylative functionalization to form a C(sp3)–O bond has been developed.
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Affiliation(s)
- W. L. Zhang
- Jiangsu Key Laboratory of Green Synthesis for Functional Materials and School of Chemistry and Chemical Engineering
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - S. N. Yue
- Jiangsu Key Laboratory of Green Synthesis for Functional Materials and School of Chemistry and Chemical Engineering
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Y. M. Shen
- School of Chemistry and Chemical Engineering
- Shaoxing University
- Shaoxing
- P. R. China
| | - H. Y. Hu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials
- School of Chemistry and Chemical Engineering
- Huaiyin Normal University
- Huaian 223300
- P. R. China
| | - Q.-H. Meng
- Jiangsu Key Laboratory of Green Synthesis for Functional Materials and School of Chemistry and Chemical Engineering
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - H. Wu
- Jiangsu Key Laboratory of Green Synthesis for Functional Materials and School of Chemistry and Chemical Engineering
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
| | - Y. Liu
- Jiangsu Key Laboratory of Green Synthesis for Functional Materials and School of Chemistry and Chemical Engineering
- Jiangsu Normal University
- Xuzhou 221116
- P. R. China
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23
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Liu J, Yang Z, Luo S, Hao Y, Ren J, Su Y, Wang W, Li R. Facile Method for the Large-Scale Synthesis of 6,7,4′-Trihydroxyisoflavanone. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2014.886331] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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24
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Hou C, He Q, Yang C. Direct Synthesis of Diverse 2-Aminobenzo[b]thiophenes via Palladium-Catalyzed Carbon–Sulfur Bond Formation Using Na2S2O3 as the Sulfur Source. Org Lett 2014; 16:5040-3. [DOI: 10.1021/ol502381e] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Chuanwei Hou
- State Key Laboratory of Drug
Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Qian He
- State Key Laboratory of Drug
Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Chunhao Yang
- State Key Laboratory of Drug
Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
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25
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Chen CC, Chen CM, Wu MJ. Transition Metal-Catalyzed Cascade Cyclization of Aryldiynes to Halogenated Benzo[b]naphtho[2,1-d]thiophene Derivatives. J Org Chem 2014; 79:4704-11. [DOI: 10.1021/jo500377v] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Chin-Chau Chen
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Chu-Mei Chen
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Ming-Jung Wu
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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26
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Bonano VI, Yokoyama-Yasunaka JKU, Miguel DC, Jones SA, Dodge JA, Uliana SRB. Discovery of SyntheticLeishmaniaInhibitors by Screening of a 2-Arylbenzothiophene Library. Chem Biol Drug Des 2013; 83:289-96. [DOI: 10.1111/cbdd.12239] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Revised: 09/18/2013] [Accepted: 09/27/2013] [Indexed: 02/03/2023]
Affiliation(s)
- Vivian I. Bonano
- Departamento de Parasitologia; Instituto de Ciências Biomédicas; Universidade de São Paulo; São Paulo SP 05508-900 Brazil
| | | | - Danilo C. Miguel
- Departamento de Parasitologia; Instituto de Ciências Biomédicas; Universidade de São Paulo; São Paulo SP 05508-900 Brazil
| | - Scott A. Jones
- Lilly Research Laboratories; Eli Lilly and Company; Lilly Corporate Center; Indianapolis IN 46285 USA
| | - Jeffrey A. Dodge
- Lilly Research Laboratories; Eli Lilly and Company; Lilly Corporate Center; Indianapolis IN 46285 USA
| | - Silvia R. B. Uliana
- Departamento de Parasitologia; Instituto de Ciências Biomédicas; Universidade de São Paulo; São Paulo SP 05508-900 Brazil
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27
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Os’kina IA, Tikhonov AY, Bagryanskaya IY, Gatilov YV, Fedorova OS. Reaction of 4-hydroxycoumarin with 2-acetyloxiranes. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2013. [DOI: 10.1134/s1070428013100163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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28
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Waghmode SB, Mahale G, Patil VP, Renalson K, Singh D. Efficient Method for Demethylation of Aryl Methyl Ether Using Aliquat-336. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2013.772201] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
| | - Ganesh Mahale
- a Department of Chemistry , University of Pune , Pune , India
| | - Viraj P. Patil
- a Department of Chemistry , University of Pune , Pune , India
| | - Kartik Renalson
- b IPCA Laboratories , Kandivali Industrial Estate Charkop , Kandivali West , Mumbai , India
| | - Dharmendra Singh
- b IPCA Laboratories , Kandivali Industrial Estate Charkop , Kandivali West , Mumbai , India
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29
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Maximov PY, Lee TM, Jordan VC. The discovery and development of selective estrogen receptor modulators (SERMs) for clinical practice. CURRENT CLINICAL PHARMACOLOGY 2013; 8:135-55. [PMID: 23062036 PMCID: PMC3624793 DOI: 10.2174/1574884711308020006] [Citation(s) in RCA: 239] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Revised: 07/11/2012] [Accepted: 10/03/2012] [Indexed: 01/13/2023]
Abstract
Selective estrogen receptor modulators (SERMs) are structurally different compounds that interact with intracellular estrogen receptors in target organs as estrogen receptor agonists or antagonists. These drugs have been intensively studied over the past decade and have proven to be a highly versatile group for the treatment of different conditions associated with postmenopausal women's health, including hormone responsive cancer and osteoporosis. Tamoxifen, a failed contraceptive is currently used to treat all stages of breast cancer, chemoprevention in women at high risk for breast cancer and also has beneficial effects on bone mineral density and serum lipids in postmenopausal women. Raloxifene, a failed breast cancer drug, is the only SERM approved internationally for the prevention and treatment of postmenopausal osteoporosis and vertebral fractures. However, although these SERMs have many benefits, they also have some potentially serious adverse effects, such as thromboembolic disorders and, in the case of tamoxifen, uterine cancer. These adverse effects represent a major concern given that long-term therapy is required to prevent osteoporosis or prevent and treat breast cancer. The search for the 'ideal' SERM, which would have estrogenic effects on bone and serum lipids, neutral effects on the uterus, and antiestrogenic effects on breast tissue, but none of the adverse effects associated with current therapies, is currently under way. Ospemifene, lasofoxifene, bazedoxifene and arzoxifene, which are new SERM molecules with potentially greater efficacy and potency than previous SERMs, have been investigated for use in the treatment and prevention of osteoporosis. These drugs have been shown to be comparably effective to conventional hormone replacement therapy in animal models, with potential indications for an improved safety profile. Clinical efficacy data from ongoing phase III trials are available or are awaited for each SERM so that a true understanding of the therapeutic potential of these compounds can be obtained. In this article, we describe the discovery and development of the group of medicines called SERMs. The newer SERMs in late development: ospemifene, lasofoxifene, bazedoxifene, are arzoxifene are described in detail.
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Affiliation(s)
- Philipp Y Maximov
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, 3970 Reservoir Rd NW, Research Building, Suite E204A, Washington, DC 20057, USA
| | - Theresa M Lee
- Division of Hematology and Oncology, Georgetown University Medical Center, 3970 Reservoir Rd NW, Washington, DC 20057, USA
| | - V. Craig Jordan
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, 3970 Reservoir Rd NW, Research Building, Suite E204A, Washington, DC 20057, USA
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30
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Petrov ML, Androsov DA. 4-(2-R-Aryl)-1,2,3-chalcogenadiazoles in the synthesis of fused heterocycles. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2013. [DOI: 10.1134/s1070428013040015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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31
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Design and synthesis of condensed thienocoumarins by Suzuki–Miyaura reaction/lactonization tandem protocol. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.10.096] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Karkhelikar MV, Racharlawar SS, Salian SM, Sridhar B, Likhar PR. Heck-type coupling of intramolecularly-generated thiopalladacycles with alkenes: One pot syntheses of 3-alkenylbenzo[b]thiophenes. J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2012.02.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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33
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Dadiboyena S. Recent advances in the synthesis of raloxifene: A selective estrogen receptor modulator. Eur J Med Chem 2012; 51:17-34. [DOI: 10.1016/j.ejmech.2012.02.021] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Revised: 11/30/2011] [Accepted: 02/11/2012] [Indexed: 10/28/2022]
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34
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Lee CJ, Jang YJ, Wu ZZ, Lin W. Preparation of Functional Phosphorus Zwitterions from Activated Alkanes, Aldehydes, and Tributylphosphine: Synthesis of Polysubstituted Furo[3,2-c]coumarins. Org Lett 2012; 14:1906-9. [DOI: 10.1021/ol3005479] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chia-Jui Lee
- Department of Chemistry, National Taiwan Normal University, 88, Section 4, Tingchow Road, Taipei 11677, Taiwan, ROC
| | - Yeong-Jiunn Jang
- Department of Chemistry, National Taiwan Normal University, 88, Section 4, Tingchow Road, Taipei 11677, Taiwan, ROC
| | - Zong-Ze Wu
- Department of Chemistry, National Taiwan Normal University, 88, Section 4, Tingchow Road, Taipei 11677, Taiwan, ROC
| | - Wenwei Lin
- Department of Chemistry, National Taiwan Normal University, 88, Section 4, Tingchow Road, Taipei 11677, Taiwan, ROC
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35
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Lin YT, Chen GY. A scaffold-independent subcellular event-based analysis: characterization of significant structural modifications. J Chem Inf Model 2012; 52:506-14. [PMID: 22288932 DOI: 10.1021/ci200540y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
General and singular subcellular events within the ligand-dependent receptor-mediated cellular response were separated by using the Jurs and the electrotopological state (ES) descriptors, allowing characterization of the significant structural modifications in a given set of collected peroxisome proliferator-activated receptor γ (PPARγ) agonists. The identified Jurs descriptor is the integrated function of all the general events but is scaffold-dependent. The top captured ES descriptors stand for significant structural modifications, i.e., singular events. To further elucidate the descriptor-event relationship, three biological data sets show that the Jurs descriptor can be further divided into three important descriptors, the log D, polar surface area, and shape-like descriptor. The identification of the essential descriptors for general events is the first regression, and the prioritization of all the possible structural modifications of the 46 collected thiazolidinedione PPARγ agonists is the second regression. As results, the top captured ES symbols can correspond to the singular ligand--receptor interactions as highlighted in the X-ray crystallographic image of rosiglitazone--PPARγ complex.
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Affiliation(s)
- Ying-Ting Lin
- Department of Biotechnology, College of Life Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan.
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36
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Os’kina IA, Gatilov YV, Tikhonov AY. Synthesis of 3-Hydroxy-2-hydroxy(phenyl)methyl-3-methyl-2,3-dihydro-4H-furo[3,2-c]chromen-4-one from 4-Hydroxycoumarin. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2011. [DOI: 10.1134/s1070428011090338] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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37
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Cho CH, Jung DI, Neuenswander B, Larock RC. Parallel synthesis of a desketoraloxifene analogue library via iodocyclization/palladium-catalyzed coupling. ACS COMBINATORIAL SCIENCE 2011; 13:501-10. [PMID: 21721520 DOI: 10.1021/co200090p] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
For a future structure-activity relationship (SAR) study, a library of desketoraloxifene analogues has been prepared by parallel synthesis using iodocyclization and subsequent palladium-catalyzed coupling reactions. Points of desketoraloxifene diversification involve the two phenolic hydroxyl groups and the aliphatic amine side chain. This approach affords oxygen-bearing 3-iodobenzo[b]thiophenes 4 in excellent yields, which are easily further elaborated using a two-step approach involving Suzuki-Miyaura and Mitsunobu coupling reactions to give multimethoxy-substituted desketoraloxifene analogues 6. Various hydroxyl-substituted desketoraloxifene analogues 7 were subsequently generated by demethylation with BBr(3).
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Affiliation(s)
- Chul-Hee Cho
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Dai-Il Jung
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- Department of Chemistry, Dong-A University, Saha-Gu, Busan 604-714, Korea
| | - Benjamin Neuenswander
- NIH Center of Excellence in Chemical Methodologies and Library Development, University of Kansas, Lawrence, Kansas 66047, United States
| | - Richard C. Larock
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
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38
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Cadierno V, García-Garrido SE, Gimeno J, Nebra N. Atom-economic transformations of propargylic alcohols catalyzed by the 16-electron allyl-ruthenium(II) complex [Ru(η3-2-C3H4Me)(CO)(dppf)][SbF6] (dppf=1,1′-bis(diphenylphosphino)ferrocene). Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2009.05.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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39
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Metwally MA, Khalifa ME, El-Hiti GA. Recent trends in the chemistry of aminobenzo[b]thiophenes. J Sulphur Chem 2010. [DOI: 10.1080/17415991003721266] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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40
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Kale B, Shinde A, Sonar S, Shingate B, Kumar S, Ghosh S, Venugopal S, Shingare M. RETRACTED: 1-Decanethiol, a new reagent for the odorless deprotection of aryl methyl ethers. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.04.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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41
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Androsov DA, Solovyev AY, Petrov ML, Butcher RJ, Jasinski JP. A convenient approach towards 2- and 3-aminobenzo[b]thiophenes. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.01.069] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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42
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Jain N, Xu J, Kanojia RM, Du F, Jian-Zhong G, Pacia E, Lai MT, Musto A, Allan G, Reuman M, Li X, Hahn D, Cousineau M, Peng S, Ritchie D, Russell R, Lundeen S, Sui Z. Identification and structure-activity relationships of chromene-derived selective estrogen receptor modulators for treatment of postmenopausal symptoms. J Med Chem 2009; 52:7544-69. [PMID: 19366247 DOI: 10.1021/jm900146e] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
As part of a program aimed at the development of selective estrogen receptor modulators (SERMs), novel chromene scaffolds, benzopyranobenzoxapanes, were discovered. Many compounds showed binding affinity as low as 1.6-200 nM, displayed antagonist behaviors in the MCF-7 human breast adenocarcinoma cell line as well in Ishikawa cell line with IC(50) values in the range 0.2-360 nM. On the basis of the side chain substitution, various compounds demonstrated strong inhibitory activity in anti-uterotropic assay. Compound 7-(R) and its major metabolites 5-(R) and 6-(R) were evaluated in several in vivo models of estrogen action. Relative to a full estrogen agonist (ethynyl estradiol) and the SERM raloxifene, 7-(R) was found to be a potent SERM that behaved as antagonist in the uterus and exhibited estrogen agonistic activity on bone, plasma lipids, hot flush, and vagina. The overall pharmacokinetic profile and stability were significantly improved compared to those of the phase 2 development compound 9-(R).
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Affiliation(s)
- Nareshkumar Jain
- Johnson & Johnson Pharmaceutical Research & Development LLC, 665 Stockton Drive, Exton, Pennsylvania 19341, USA.
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43
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James CA, Coelho AL, Gevaert M, Forgione P, Snieckus V. Combined directed ortho and remote metalation-Suzuki cross-coupling strategies. Efficient synthesis of heteroaryl-fused benzopyranones from biaryl O-carbamates. J Org Chem 2009; 74:4094-103. [PMID: 19441801 DOI: 10.1021/jo900146d] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A concise synthesis of heteroaryl dibenzopyranones 9a,b, 10a,b, 11a-c, and 12a-c has been achieved by the LDA-induced migration of heterobiaryl O-carbamates 18, 21, 25, and 30 which, in turn, were prepared in good yield using a combined directed ortho lithiation (DoM)-transition-metal-catalyzed Suzuki cross-coupling strategy. An efficient and general route to a wide variety of heterocycles including coumestans 19a,c and the previously unknown isothiocoumestan ring system 22b has been thereby achieved.
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Affiliation(s)
- Clint A James
- Department of Chemistry, University of Waterloo, Waterloo, ON, Canada N2L 3G1
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44
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45
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Cadierno V, Díez J, Gimeno J, Nebra N. Ruthenium/TFA-Catalyzed Coupling of Activated Secondary Propargylic Alcohols with Cyclic 1,3-Diones: Furan versus Pyran Ring Formation. J Org Chem 2008; 73:5852-8. [DOI: 10.1021/jo800726u] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Victorio Cadierno
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles” (Unidad Asociada al CSIC), Facultad de Química, Universidad de Oviedo, E-33071 Oviedo, Spain
| | - Josefina Díez
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles” (Unidad Asociada al CSIC), Facultad de Química, Universidad de Oviedo, E-33071 Oviedo, Spain
| | - José Gimeno
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles” (Unidad Asociada al CSIC), Facultad de Química, Universidad de Oviedo, E-33071 Oviedo, Spain
| | - Noel Nebra
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles” (Unidad Asociada al CSIC), Facultad de Química, Universidad de Oviedo, E-33071 Oviedo, Spain
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Cheng G, Hu Y. Two efficient cascade reactions to synthesize substituted furocoumarins. J Org Chem 2008; 73:4732-5. [PMID: 18505287 DOI: 10.1021/jo800439y] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We have developed two efficient one-pot reactions to generate furo[3,2-c]coumarins and chlorofuro[3,2-c]coumarins through addition/cyclization/oxidation and chlorination. One cascade addition/cyclization/oxidation sequence of 1 with H(2)O in the presence of 20% CuCl as Lewis acid under an air atmosphere generated the 2-substituted-4 H-furo[3,2-c]chromen-4-one 2. Another sequence in the presence of 10% CuBr and excess CuCl(2) as the oxidant afforded the 3-chloro-2-substituted-4 H-furo[3,2- c]chromen-4-one 3.
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Affiliation(s)
- Gang Cheng
- Shanghai Institute of Materia Medica, Chinese Academy of Science, Shanghai, China
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Lisman JE, Coyle JT, Green RW, Javitt DC, Benes FM, Heckers S, Grace AA. Circuit-based framework for understanding neurotransmitter and risk gene interactions in schizophrenia. Trends Neurosci 2008; 16:e43-71. [PMID: 18395805 DOI: 10.1111/j.1755-5949.2010.00163.x] [Citation(s) in RCA: 98] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Many risk genes interact synergistically to produce schizophrenia and many neurotransmitter interactions have been implicated. We have developed a circuit-based framework for understanding gene and neurotransmitter interactions. NMDAR hypofunction has been implicated in schizophrenia because NMDAR antagonists reproduce symptoms of the disease. One action of antagonists is to reduce the excitation of fast-spiking interneurons, resulting in disinhibition of pyramidal cells. Overactive pyramidal cells, notably those in the hippocampus, can drive a hyperdopaminergic state that produces psychosis. Additional aspects of interneuron function can be understood in this framework, as follows. (i) In animal models, NMDAR antagonists reduce parvalbumin and GAD67, as found in schizophrenia. These changes produce further disinhibition and can be viewed as the aberrant response of a homeostatic system having a faulty activity sensor (the NMDAR). (ii) Disinhibition decreases the power of gamma oscillation and might thereby produce negative and cognitive symptoms. (iii) Nicotine enhances the output of interneurons, and might thereby contribute to its therapeutic effect in schizophrenia.
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Affiliation(s)
- John E Lisman
- Department of Biology, Brandeis University, 415 South Street, Waltham, MA 02454, USA.
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48
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Luan F, Liu HT, Ma WP, Fan BT. Classification of estrogen receptor-β ligands on the basis of their binding affinities using support vector machine and linear discriminant analysis. Eur J Med Chem 2008; 43:43-52. [PMID: 17459530 DOI: 10.1016/j.ejmech.2007.03.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2006] [Revised: 03/03/2007] [Accepted: 03/06/2007] [Indexed: 01/22/2023]
Abstract
Classification models of estrogen receptor-beta ligands were proposed using linear and nonlinear models. The data set was divided into active and inactive classes on the basis of their binding affinities. The two-class problem (active, inactive) was firstly explored by linear classifier approach, linear discriminant analysis (LDA). In order to get a more accurate prediction model, the nonlinear novel machine learning technique, support vectors machine (SVM), was subsequently used to investigate. The heuristic method (HM) was used to pre-select the whole descriptor sets. The model containing eight descriptors founded by SVM, showed better predictive ability than LDA. The accuracy in prediction for the training, test and overall data sets are 92.9%, 85.8% and 91.4% for SVM, 83.1%, 76.1% and 81.9% for LDA, respectively. The results indicate that SVM can be used as a powerful modeling tool for QSAR studies.
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Affiliation(s)
- F Luan
- Department of Applied Chemistry, Yantai University, Yantai, Shandong 264005, PR China.
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Martín-Santamaría S, Rodríguez JJ, de Pascual-Teresa S, Gordon S, Bengtsson M, Garrido-Laguna I, Rubio-Viqueira B, López-Casas PP, Hidalgo M, de Pascual-Teresa B, Ramos A. New scaffolds for the design of selective estrogen receptor modulators. Org Biomol Chem 2008; 6:3486-96. [DOI: 10.1039/b806918b] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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50
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Davis DD, Díaz-Cruz ES, Landini S, Kim YW, Brueggemeier RW. Evaluation of synthetic isoflavones on cell proliferation, estrogen receptor binding affinity, and apoptosis in human breast cancer cells. J Steroid Biochem Mol Biol 2008; 108:23-31. [PMID: 17962013 PMCID: PMC3638921 DOI: 10.1016/j.jsbmb.2007.07.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2007] [Accepted: 07/09/2007] [Indexed: 01/10/2023]
Abstract
Natural isoflavones have demonstrated numerous pharmacological activities in breast cancer cells, including antiproliferative activities and binding affinities for estrogen receptors (ERs). Chemical modifications on the isoflavone ring system have been prepared and explored for the development of new therapeutics for hormone-dependent breast cancer. The antiproliferative actions of the synthesized isoflavones on MCF-7 and MDA-MB-231 breast cancer cells were examined, as well as cytotoxicity, interaction with estrogen receptors, and proapoptotic activity. The compounds were screened in the absence and in the presence of estradiol to evaluate whether or not estradiol could rescue cell proliferation on MCF-7 cells. Several compounds were able to inhibit cell proliferation in a dose-dependent manner, and compounds containing the bulky 7-phenylmethoxy substituent resulted in cell toxicity not only in MCF-7 cells but also in MDA-MB-231 cells. Selected synthetic isoflavones were able to bind to estrogen receptor with low affinity. Apoptotic pathways were also activated by these compounds in breast cancer cells. The majority of the compounds can bind to both ERs with low affinity, and their effects on hormone-independent breast cancer cells suggest that their ability to inhibit cell growth in breast cancer cells is not exclusively mediated by ERs. Thus, the synthetic trisubstituted isoflavones act on multiple signaling pathways leading to activation of mechanisms of cell-death and ultimately affecting breast cancer cell survival.
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Affiliation(s)
- Danyetta D. Davis
- The Ohio State Biochemistry Program, College of Medicine, The Ohio State University, 318 W. 12th Avenue, Columbus, OH 43210, USA
| | - Edgar S. Díaz-Cruz
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, 500 West 12th Avenue, Columbus, OH 43210, USA
| | - Serena Landini
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, 500 West 12th Avenue, Columbus, OH 43210, USA
| | - Young-Woo Kim
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, 500 West 12th Avenue, Columbus, OH 43210, USA
| | - Robert W. Brueggemeier
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, 500 West 12th Avenue, Columbus, OH 43210, USA
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