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Synthesis of uniquely substituted 4H-Chromeno[2,3-d] pyrimidin-2-one derivatives by l-Proline catalyzed green chemistry method. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Pandey SM, Pandey J, Saraswat K, Kant R. A binuclear dihalodioxido molybdenum compounds for bio-medicinal use. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Gupta A, Ahmad I, Kureel J, Hasanain M, Pandey P, Singh S, John AA, Sarkar J, Singh D. Induction of targeted osteogenesis with 3-aryl-2H-benzopyrans and 3-aryl-3H-benzopyrans: Novel osteogenic agents. J Steroid Biochem Mol Biol 2016; 158:63-75. [PMID: 26807865 DOI: 10.1016/j.jsbmb.2016.01.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 12/01/2015] [Accepted: 01/20/2016] [Indexed: 01/19/2023]
Abstract
Development of target oriented chemotherapeutics for treatment of chronic diseases have been considered as an important approach in drug development. Following this approach, in our efforts for exploration of new osteogenic leads, substituted 3-aryl-2H-benzopyran and 3-aryl-3H-benzopyran derivatives (19, 20a-e, 21, 22a-e, 26, 27, 28a-e, 29, 31a-b, 32 and 33) have been characterized as estrogen receptor-β selective osteogenic (bone forming) agents. The synthesized compounds were evaluated for osteogenic activity using mouse calvarial osteoblast cells. Four compounds viz20b, 22a, 27and 32 showed significant osteogenic activity at EC50 values 1.35, 34.5, 407 and 29.5pM respectively. Out of these, 20b and 32 were analyzed for their bone mineralization efficacy and osteogenic gene expression by qPCR. The results showed that 20b and 32 significantly increased mineral nodule formation and the transcript levels of BMP-2, RUNX-2 and osteocalcin at 100pM concentrations respectively. Further mechanistic studies of 20b and 32 using transiently knocked down expression of ER-α and β in mouse osteoblast (MOBs) showed that 20b and 32 exerts osteogenic efficacy via activation of estrogen receptor-β preferentially. Additionally, compounds showed significant anticancer activity in a panel of cancer cell lines within the range of (IC50) 6.54-27.79μM. The most active molecule, 22b inhibited proliferation of cells by inducing apoptosis and arresting cell cycle at sub-G0 phase with concomitant decrease in cells at S phase.
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Affiliation(s)
- Atul Gupta
- Medicinal Chemistry Department, CSIR-Central Institute of Medicinal and aromatic Plants, P.O. CIMAP, Kukrail Road, Lucknow 226015, India.
| | - Imran Ahmad
- Medicinal Chemistry Department, CSIR-Central Institute of Medicinal and aromatic Plants, P.O. CIMAP, Kukrail Road, Lucknow 226015, India
| | - Jyoti Kureel
- Division of Endocrinology, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Lucknow 226031, India
| | - Mohammad Hasanain
- Division of Biochemistry, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Lucknow 226031, India
| | - Praveen Pandey
- Division of Biochemistry, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Lucknow 226031, India
| | - Sarita Singh
- Medicinal Chemistry Department, CSIR-Central Institute of Medicinal and aromatic Plants, P.O. CIMAP, Kukrail Road, Lucknow 226015, India
| | - Aijaz A John
- Division of Endocrinology, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Lucknow 226031, India
| | - Jayanta Sarkar
- Division of Biochemistry, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Lucknow 226031, India
| | - Divya Singh
- Division of Endocrinology, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Lucknow 226031, India
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Srivastava A, Singh P, Kumar R. BF3·Et2O Catalysed 4-Aryl-3-phenyl-benzopyrones, Pro-SERMs, and Their Characterization. Adv Pharmacol Sci 2015; 2015:527159. [PMID: 26421007 PMCID: PMC4569759 DOI: 10.1155/2015/527159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 07/22/2015] [Indexed: 11/22/2022] Open
Abstract
We have synthesized the novel 4-(4-hydroxy-benzyl)-3-phenyl-chromen-2-one which is a precursor of SERMs with a smaller number of steps and good yield. Two methodologies for the synthesis have been worked out. Anhydrous BF3·Et2O catalyzed reaction was found to be selective for product formation while anhydrous AlCl3, FeCl3, and SnCl4 catalyzed ones were nonselective.
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Affiliation(s)
- Ambika Srivastava
- Department of Chemistry, Centre of Advanced Study, Faculty of Science, Banaras Hindu University, Varanasi 221005, India
| | - Pooja Singh
- Department of Chemistry, Centre of Advanced Study, Faculty of Science, Banaras Hindu University, Varanasi 221005, India
| | - Rajesh Kumar
- Department of Chemistry, Centre of Advanced Study, Faculty of Science, Banaras Hindu University, Varanasi 221005, India
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Umareddy P, Reddy AV, Ravindranath LK. Syntheses of 4-Aryl Chromanes: A Rearrangement Approach. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2015.1015140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Pailla Umareddy
- Research and Development Center, Suven Life Sciences, Hyderabad, India
- Department of Chemistry, Sri Krishnadevaraya University, Ananthapur, Andhra Pradesh, India
| | - Arava Veera Reddy
- Research and Development Center, Suven Life Sciences, Hyderabad, India
| | - L. K. Ravindranath
- Department of Chemistry, Sri Krishnadevaraya University, Ananthapur, Andhra Pradesh, India
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Paterni I, Granchi C, Katzenellenbogen JA, Minutolo F. Estrogen receptors alpha (ERα) and beta (ERβ): subtype-selective ligands and clinical potential. Steroids 2014; 90:13-29. [PMID: 24971815 PMCID: PMC4192010 DOI: 10.1016/j.steroids.2014.06.012] [Citation(s) in RCA: 419] [Impact Index Per Article: 41.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Estrogen receptors alpha (ERα) and beta (ERβ) are nuclear transcription factors that are involved in the regulation of many complex physiological processes in humans. Modulation of these receptors by prospective therapeutic agents is currently being considered for prevention and treatment of a wide variety of pathological conditions, such as, cancer, metabolic and cardiovascular diseases, neurodegeneration, inflammation, and osteoporosis. This review provides an overview and update of compounds that have been recently reported as modulators of ERs, with a particular focus on their potential clinical applications.
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Affiliation(s)
- Ilaria Paterni
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Carlotta Granchi
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - John A Katzenellenbogen
- Department of Chemistry, University of Illinois, 600 S. Mathews Avenue, Urbana, IL 61801, USA
| | - Filippo Minutolo
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 6, 56126 Pisa, Italy.
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Chandra V, Fatima I, Saxena R, Kitchlu S, Sharma S, Hussain MK, Hajela K, Bajpai P, Dwivedi A. Apoptosis induction and inhibition of hyperplasia formation by 2-[piperidinoethoxyphenyl]-3-[4-hydroxyphenyl]-2H-benzo(b)pyran in rat uterus. Am J Obstet Gynecol 2011; 205:362.e1-11. [PMID: 21782150 DOI: 10.1016/j.ajog.2011.05.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2010] [Revised: 04/23/2011] [Accepted: 05/05/2011] [Indexed: 01/28/2023]
Abstract
OBJECTIVE The study was undertaken to explore the antiproliferative mechanism of action of 2-[piperidinoethoxyphenyl]-3-[4-hydroxyphenyl]-2H-benzo(b)pyran (K-1) in estradiol-induced rat uterine hyperplasia. STUDY DESIGN Adult ovariectomized rats received vehicle or estradiol alone (20 μg/kg) or estradiol along with K-1 (100 or 200 μg/kg) for 14 days. Uterine histomorphometric analysis and immunoblotting were performed. Caspase-3 activity and terminal deoxynucleotidyl transferase-mediated nick end-labeling staining were performed to analyze the apoptotic potential of compound. RESULTS Compound inhibited estradiol-induced uterine weight and histomorphometric changes pertaining to endometrial growth and down-regulated the expression of estrogen response element and activator protein-1 regulated genes and transcription factors. The compound significantly induced apoptosis, interfered with Akt activation, decreased X-linked inhibitor of apoptosis protein expression leading to an increased cleavage of caspase-9, caspase-3, poly(adenosine diphosphate-ribose) polymerase, increased Bax/Bcl2 ratio, and caspase-3 activity. CONCLUSION K-1 inhibits endometrial proliferation via nonclassical estrogen receptor signaling mechanisms. It interfered with Akt activation and induced apoptosis via the intrinsic pathway and inhibited estradiol-induced hyperplasia formation in rat uterus.
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Kharkwal G, Fatima I, Kitchlu S, Singh B, Hajela K, Dwivedi A. Anti-implantation effect of 2-[piperidinoethoxyphenyl]-3-[4-hydroxyphenyl]-2H-benzo(b)pyran, a potent antiestrogenic agent in rats. Fertil Steril 2010; 95:1322-7. [PMID: 20674906 DOI: 10.1016/j.fertnstert.2010.06.066] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2009] [Revised: 06/21/2010] [Accepted: 06/22/2010] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To investigate the anti-implantation effect and hormonal profile of 2-[piperidinoethoxyphenyl]-3-[4-hydroxyphenyl]-2H-benzo(b)pyran (K-1) in rats. DESIGN In vivo assays for anti-implantation activity were performed in pregnant rats. Assays for estrogenicity/antiesrogenicity were performed in immature ovariectomized female rats. In vitro competitive binding of K-1 to human recombinant ERα, transient transfection assay using ERE-luciferase reporter, and alkaline phosphatase (ALP) activity as a measure of estrogenicity and/antiestrogenicity in human endometrial carcinoma cells were performed. SETTING Research laboratory. ANIMAL(S) Adult female rats for anti-implantation activity, immature ovariectomized female rats, and immature castrated/intact male rats. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Number of implantations, uterine growth, luciferase reporter activity, ER binding affinity, and ALP activity. RESULT(S) Compound K-1 given orally for 1-7 days post coitum at the dose of 100 μg/kg body weight prevented pregnancy in 100% of rats. K-1 was a potent antiestrogenic, and at 50 μg/kg, it could inhibit the effect of 1 μg E(2) in immature rats. Compound was devoid of uterotrophic, androgenic, or antigonadotropic activity. A high affinity binding to ERα was displayed by K-1, with a relative binding affinity of 5% of E(2). In human endometrial carcinoma cells, K-1 did not induce ERα-mediated transcriptional activation that is measured as luciferase reporter activity. K-1 antagonized the E-induced transcriptional activation significantly. K-1 also antagonized E-induced ALP activity in human endometrial cells. CONCLUSION(S) K-1 appeared to exert its antifertility action by virtue of its strong antiestrogenic activity.
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Affiliation(s)
- Geetika Kharkwal
- Division of Endocrinology, Central Drug Research Institute, Central Drug Research Institute, Council of Scientific and Industrial Research, Lucknow, Uttar Pradesh, India
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Kinetic Resolution of β-Alkenyl-, β-Alkynyl- and β-Flavenyl-Substituted β-Hydroxy Esters in Asymmetric Dehydration. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800807] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Singh US, Shankar R, Yadav GP, Kharkwal G, Dwivedi A, Keshri G, Singh M, Moulik P, Hajela K. Synthesis and structure guided evaluation of estrogen agonist and antagonist activities of some new tetrazolyl indole derivatives. Eur J Med Chem 2008; 43:2149-58. [DOI: 10.1016/j.ejmech.2007.10.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2007] [Revised: 10/17/2007] [Accepted: 10/29/2007] [Indexed: 11/30/2022]
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Stereoselective Syntheses of 3-Substituted Flavene Derivatives and Asymmetric Dehydration via Kinetic Resolution. B KOREAN CHEM SOC 2008. [DOI: 10.5012/bkcs.2008.29.7.1299] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Zhao XL, Liu L, Chen YJ, Wang D. Three-Component Barbier Allylation-Friedel-Crafts Alkylation Promoted by BuPyCl/SnCl2·2H2O: Application to the Synthesis of 4-(Substituted phenyl)chromans. CHINESE J CHEM 2007. [DOI: 10.1002/cjoc.200790244] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Chen N, Jain N, Xu J, Reuman M, Li X, Russell RK, Sui Z. Synthesis of novel tetracyclic chromenes through carbanion chemistry of 4-methyl coumarins. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.06.047] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Pandey J, Jha AK, Hajela K. Synthesis and biological activities of some new dibenzopyranones and dibenzopyrans: search for potential oestrogen receptor agonists and antagonists. Bioorg Med Chem 2004; 12:2239-49. [PMID: 15080923 DOI: 10.1016/j.bmc.2004.02.018] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2003] [Accepted: 02/10/2004] [Indexed: 11/28/2022]
Abstract
Continuing our search for newer oestrogen agonists or antagonists and extending our work on the exploration of benzopyran related compounds, some new tricyclic molecules bridged between the active molecules of 3,4-diaryl chroman and 2,3-diaryl benzopyrans have been synthesised. Structural modifications at different positions with elements known to impart agonist or antagonist activities have been carried out to prepare the desired molecules. The target compounds were screened for their anti-osteoporotic (agonist) and anti-uterotrophic (antagonist) activities and were found to be moderately active.
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Affiliation(s)
- Jaya Pandey
- Medicinal Chemistry Division, Central Drug Research Institute, Lucknow 226001, UP, India
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Witorsch RJ. Endocrine disruptors: can biological effects and environmental risks be predicted? Regul Toxicol Pharmacol 2002; 36:118-30. [PMID: 12383724 DOI: 10.1006/rtph.2002.1564] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A large number of diverse nonsteroidal chemicals, referred to as xenoestrogens, bind to the estrogen receptor (ER) and evoke biological responses. The activity of most xenoestrogens is weak (from about 1/1000 th to 1/1000000 th that of estradiol). These substances interact with the binding pocket of the ER because they have chemical similarities to estradiol (usually a phenolic A-ring). Reduced activity of xenoestrogens probably results from lack of fit of the remainder of the molecule within the binding pocket. ER binding per se has only limited influence on endocrine disruption. The nature (estrogenic or antiestrogenic) or magnitude of the response is a function of the substance itself, complexities within the various stages of the ER signaling pathway, as well as other factors (such as, plasma binding of xenoestrogens, cross-talk between ER and other signaling pathways, androgen antagonism, and alternate modes of estrogen action). Whereas there is general agreement that high doses of nonsteroidal chemicals can evoke endocrine disruptive effects, there is no consensus that such substances produce low-dose effects or that humans are at risk of endocrine disruption due to exposure to environmentally relevant levels of such chemicals. Furthermore, screening programs to identify hormonally active chemicals (such as the Endocrine Disruptor Screening Program) may be premature in view of the complexity of the mechanisms involved.
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Affiliation(s)
- Raphael J Witorsch
- School of Medicine, Virginia Commonwealth University, Richmond, Virginia 23298-0551, USA.
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