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Maestro MA, Seoane S. The Centennial Collection of VDR Ligands: Metabolites, Analogs, Hybrids and Non-Secosteroidal Ligands. Nutrients 2022; 14:nu14224927. [PMID: 36432615 PMCID: PMC9692999 DOI: 10.3390/nu14224927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/14/2022] [Accepted: 11/16/2022] [Indexed: 11/23/2022] Open
Abstract
Since the discovery of vitamin D a century ago, a great number of metabolites, analogs, hybrids and nonsteroidal VDR ligands have been developed. An enormous effort has been made to synthesize compounds which present beneficial properties while attaining lower calcium serum levels than calcitriol. This structural review covers VDR ligands published to date.
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Affiliation(s)
- Miguel A. Maestro
- Department of Chemistry-CICA, University of A Coruña, Campus da Zapateira, s/n, 15008 A Coruña, Spain
- Correspondence:
| | - Samuel Seoane
- Department of Physiology-CIMUS, University of Santiago, Campus Vida, 15005 Santiago, Spain
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2
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Bisphosphonate-Based Conjugates and Derivatives as Potential Therapeutic Agents in Osteoporosis, Bone Cancer and Metastatic Bone Cancer. Int J Mol Sci 2021; 22:ijms22136869. [PMID: 34206757 PMCID: PMC8268474 DOI: 10.3390/ijms22136869] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/14/2021] [Accepted: 04/20/2021] [Indexed: 12/13/2022] Open
Abstract
Metastatic bone cancer occurs in every type of cancer but is prevalent in lung, breast, and prostate cancers. These metastases can cause extensive morbidity, including a range of skeletal-related events, often painful and linked with substantial hospital resource usage. The treatment used is a combination of chemotherapy and surgery. However, anticancer drugs are still limited due to severe side effects, drug resistance, poor blood supply, and non-specific drug uptake, necessitating high toxic doses. Bisphosphonates are the main class of drugs utilized to inhibit metastatic bone cancer. It is also used for the treatment of osteoporosis and other bone diseases. However, bisphosphonate also suffers from serious side effects. Thus, there is a serious need to develop bisphosphonate conjugates with promising therapeutic outcomes for treating metastatic bone cancer and osteoporosis. This review article focuses on the biological outcomes of designed bisphosphonate-based conjugates for the treatment of metastatic bone cancer and osteoporosis.
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3
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Grioli SM, Alonso EN, Mascaró E, Stabile SA, Ferronato MJ, Quevedo MA, Radivoy G, Facchinetti MM, Vitale CA, Curino AC. Structure-Activity Relationship Study of an Alkynylphosphonate and Vynilphosphonate Analogues of Calcitriol. Med Chem 2020; 17:230-246. [PMID: 32819231 DOI: 10.2174/1573406416999200818145115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 07/05/2020] [Accepted: 07/20/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND 1α,25-dihydroxy vitamin D3 (calcitriol) shows potent growth-inhibitory properties on different cancer cell lines, but its hypercalcemic effects have severely hampered its therapeutic application. Therefore, it is important to develop synthetic calcitriol analogues that retain or even increase its antitumoral effects and lack hypercalcemic activity. Based on previous evidence of the potent antitumor effects of the synthetic alkynylphosphonate EM1 analogue, we have now synthesized a derivative called SG. OBJECTIVE The aim of the present work is to evaluate the calcemic activity and the antitumor effect of SG, comparing these effects with those exerted by calcitriol and with those previously published for EM1. In addition, we propose to analyze by in silico studies, the chemical structure-biological function relationship of these molecules. METHODS We performed the synthesis of vinylphosphonate SG analogue; in vitro assays on different cancer cell lines; in vivo assays on mice; and in silico assays applying computational molecular modeling. RESULTS The SG compound lacks hypercalcemic activity, similar to the parent compound EM1. However, the antitumor activity was blunted, as no antiproliferative or anti-migratory effects were observed. By in silico assays, we demonstrated that SG analogue has a lower affinity for the VDRligand- binding domain than the EM1 compound due to lack of interaction with the important residues His305 and His397. CONCLUSION These results demonstrate that the chemical modification in the lateral side chain of the SG analogue affects the antitumoral activity observed previously for EM1 but does not affect the calcemic activity. These results contribute to the rational design and synthesis of novel calcitriol analogues.
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Affiliation(s)
- Silvina M Grioli
- Laboratorio de Quimica Organica, Instituto de Quimica del Sur (INQUISUR), Universidad Nacional del Sur (UNS), CONICET, Departamento de Quimica (UNS), Bahia Blanca, 8000, Argentina
| | - Eliana N Alonso
- Laboratorio de Biología del Cancer, Instituto de Investigaciones Bioquimicas de Bahia Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Departamento de Biologia, Bioquimica y Farmacia (UNS), Bahia Blanca, 8000, Argentina
| | - Evangelina Mascaró
- Laboratorio de Quimica Organica, Instituto de Quimica del Sur (INQUISUR), Universidad Nacional del Sur (UNS), CONICET, Departamento de Quimica (UNS), Bahia Blanca, 8000, Argentina
| | - Santiago A Stabile
- Laboratorio de Quimica Organica, Instituto de Quimica del Sur (INQUISUR), Universidad Nacional del Sur (UNS), CONICET, Departamento de Quimica (UNS), Bahia Blanca, 8000, Argentina
| | - María J Ferronato
- Laboratorio de Biología del Cancer, Instituto de Investigaciones Bioquimicas de Bahia Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Departamento de Biologia, Bioquimica y Farmacia (UNS), Bahia Blanca, 8000, Argentina
| | - Mario A Quevedo
- Unidad de Investigacion y Desarrollo en Tecnologia Farmaceutica (UNITEFA-CONICET), Facultad de Ciencias Quimicas, Ciudad Universitaria, Universidad Nacional de Cordoba, Cordoba, 5000, Argentina
| | - Gabriel Radivoy
- Laboratorio de Quimica Organica, Instituto de Quimica del Sur (INQUISUR), Universidad Nacional del Sur (UNS), CONICET, Departamento de Quimica (UNS), Bahia Blanca, 8000, Argentina
| | - María M Facchinetti
- Laboratorio de Biología del Cancer, Instituto de Investigaciones Bioquimicas de Bahia Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Departamento de Biologia, Bioquimica y Farmacia (UNS), Bahia Blanca, 8000, Argentina
| | - Cristian A Vitale
- Laboratorio de Quimica Organica, Instituto de Quimica del Sur (INQUISUR), Universidad Nacional del Sur (UNS), CONICET, Departamento de Quimica (UNS), Bahia Blanca, 8000, Argentina
| | - Alejandro C Curino
- Laboratorio de Biología del Cancer, Instituto de Investigaciones Bioquimicas de Bahia Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Departamento de Biologia, Bioquimica y Farmacia (UNS), Bahia Blanca, 8000, Argentina
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4
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Steroid phosphate esters and phosphonosteroids and their biological activities. Appl Microbiol Biotechnol 2018; 102:7679-7692. [PMID: 29998410 DOI: 10.1007/s00253-018-9206-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 06/27/2018] [Accepted: 06/27/2018] [Indexed: 10/28/2022]
Abstract
Steroid phosphate esters are very rare natural lipids that have been comparatively recently isolated from fractions of polar lipids of marine sponges and starfish. These steroids exhibit interesting biological activities. When using the PASS computer program, we showed that many of steroid phosphate esters showed antifungal, antihypercholesterolemic, anesthetic, and other activities with a confidence of 73 to 93%. In addition, some of them can be used as inhibitors of cholesterol synthesis and show hepatoprotection properties. Phosphonosteroids demonstrate antineoplastic and antihypercholesterolemic activities with a certainty of 85 to 90%. And also, they can be used as ovulation inhibitors or female steroid contraceptives with confidence from 86 to 98%.
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5
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Ferronato MJ, Alonso EN, Salomón DG, Fermento ME, Gandini NA, Quevedo MA, Mascaró E, Vitale C, Fall Y, Facchinetti MM, Curino AC. Antitumoral effects of the alkynylphosphonate analogue of calcitriol EM1 on glioblastoma multiforme cells. J Steroid Biochem Mol Biol 2018; 178:22-35. [PMID: 29102624 DOI: 10.1016/j.jsbmb.2017.10.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 09/22/2017] [Accepted: 10/25/2017] [Indexed: 02/05/2023]
Abstract
Glioblastoma multiforme (GBM) is the worst and most common brain tumor, characterized by high proliferation and invasion rates. The current standard treatment is mainly based on chemoradiotherapy and this approach has slightly improved patient survival. Thus, novel strategies aimed at prolonging the survival and ensuring a better quality of life are necessary. In the present work, we investigated the antitumoral effect of the novel analogue of calcitriol EM1 on GBM cells employing in vitro, in silico, and in vivo assays. In vitro, we demonstrated that EM1 treatment selectively decreases the viability of murine and human tumor cells without affecting that of normal human astrocytes. The analysis of the mechanisms showed that EM1 produces cell cycle arrest in the T98G cell line, which is accompanied by an increase in p21, p27, p57 protein levels and a decrease in cyclin D1, p-Akt-S473, p-ERK1/2 and c-Jun expression. Moreover, EM1 treatment also exerts in GBM cells anti-migratory effects and decreases their invasive capacity by a reduction in MMP-9 proteolytic activity. In silico, we demonstrated that EM1 is able to bind to the vitamin D receptor with greater affinity than calcitriol. Finally, we showed that EM1 treatment of nude mice administered at 50ug/kg body weight during 21days neither induces hypercalcemia nor toxicity effects. In conclusion, all the results indicate the potential of EM1 analogue as a promising therapeutic alternative for GBM treatment.
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Affiliation(s)
- María Julia Ferronato
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS), CONICET, Departamento de Biología, Bioquímica y Farmacia (UNS), Bahía Blanca, Argentina
| | - Eliana Noelia Alonso
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS), CONICET, Departamento de Biología, Bioquímica y Farmacia (UNS), Bahía Blanca, Argentina
| | - Débora Gisele Salomón
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS), CONICET, Departamento de Biología, Bioquímica y Farmacia (UNS), Bahía Blanca, Argentina
| | - María Eugenia Fermento
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS), CONICET, Departamento de Biología, Bioquímica y Farmacia (UNS), Bahía Blanca, Argentina
| | - Norberto Ariel Gandini
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS), CONICET, Departamento de Biología, Bioquímica y Farmacia (UNS), Bahía Blanca, Argentina
| | - Mario Alfredo Quevedo
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA-CONICET), Facultad de Ciencias Químicas, Ciudad Universitaria, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Evangelina Mascaró
- Laboratorio de Química Orgánica, Instituto de Química del Sur (INQUISUR), Universidad Nacional del Sur (UNS), CONICET, Departamento de Química (UNS), Bahía Blanca, Argentina
| | - Cristian Vitale
- Laboratorio de Química Orgánica, Instituto de Química del Sur (INQUISUR), Universidad Nacional del Sur (UNS), CONICET, Departamento de Química (UNS), Bahía Blanca, Argentina
| | - Yagamare Fall
- Departamento de Química Orgánica, Facultad de Química e Instituto de Investigación Biomédica (IBI), Universidad de Vigo, Campus Lagoas de Marcosende, 36310 Vigo, Spain
| | - María Marta Facchinetti
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS), CONICET, Departamento de Biología, Bioquímica y Farmacia (UNS), Bahía Blanca, Argentina
| | - Alejandro Carlos Curino
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS), CONICET, Departamento de Biología, Bioquímica y Farmacia (UNS), Bahía Blanca, Argentina.
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6
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Zhang H, Fang Z. Design and Synthesis of Novel Vitamin D–Coumarin Hybrids using Microwave Irradiation. JOURNAL OF CHEMICAL RESEARCH 2017. [DOI: 10.3184/174751917x15121208772534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A series of novel vitamin D–coumarin hybrids were synthesised by esterification of the corresponding coumarin-3-carboxylic acids and vitamin D or vitamin D CD-ring alcohol in CH2Cl2 under microwave irradiation. They were obtained in higher yields (from 64–81% up to 79–87%) and shorter reaction time (from 3 h down to 15 min), compared with earlier conventional methodologies. The structures of all the target compounds were confirmed by 1H NMR, 13C NMR and HRMS. This provides an attractive and alternative method for the preparation of high-value vitamin D–coumarin hybrids.
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Affiliation(s)
- Hengrui Zhang
- School of Chemical Engineering, Nanjing University of Science and Technology, 200 Xiaoling Wei, Nanjing 210094, P.R. China
| | - Zhijie Fang
- School of Chemical Engineering, Nanjing University of Science and Technology, 200 Xiaoling Wei, Nanjing 210094, P.R. China
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7
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Ferronato MJ, Obiol DJ, Fermento ME, Gandini NA, Alonso EN, Salomón DG, Vitale C, Mascaró E, Fall Y, Raimondi AR, Curino AC, Facchinetti MM. The alkynylphosphonate analogue of calcitriol EM1 has potent anti-metastatic effects in breast cancer. J Steroid Biochem Mol Biol 2015; 154:285-93. [PMID: 26365558 DOI: 10.1016/j.jsbmb.2015.09.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2015] [Revised: 08/31/2015] [Accepted: 09/08/2015] [Indexed: 11/22/2022]
Abstract
The active form of vitamin D3, calcitriol, plays a major role in maintaining calcium/phosphate homeostasis. In addition, it is a potent antiproliferative and prodifferentiating agent. However, when effective antitumor doses of calcitriol are employed, hypercalcemic effects are observed, thus precluding its therapeutic application. To overcome this problem, structural analogues have been designed with the aim at retaining or even increasing the antitumor effects while decreasing its calcemic activity. This report shows the biological evaluation of an alkynylphosphonate vitamin D less-calcemic analogue in a murine model of breast cancer. We demonstrate that this compound has potent anti-metastatic effects through its action over cellular migration and invasion likely mediated through the up-regulation of E-cadherin expression. Based on the current in vitro and in vivo results, EM1 is a promising candidate as a therapeutic agent in breast cancer.
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Affiliation(s)
- María J Ferronato
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas Bahía Blanca, Centro Científico Tecnológico Bahía Blanca (INIBIBB-CONICET), Bahía Blanca, Argentina
| | - Diego J Obiol
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas Bahía Blanca, Centro Científico Tecnológico Bahía Blanca (INIBIBB-CONICET), Bahía Blanca, Argentina
| | - María E Fermento
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas Bahía Blanca, Centro Científico Tecnológico Bahía Blanca (INIBIBB-CONICET), Bahía Blanca, Argentina
| | - Norberto A Gandini
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas Bahía Blanca, Centro Científico Tecnológico Bahía Blanca (INIBIBB-CONICET), Bahía Blanca, Argentina
| | - Eliana N Alonso
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas Bahía Blanca, Centro Científico Tecnológico Bahía Blanca (INIBIBB-CONICET), Bahía Blanca, Argentina
| | - Débora G Salomón
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas Bahía Blanca, Centro Científico Tecnológico Bahía Blanca (INIBIBB-CONICET), Bahía Blanca, Argentina
| | - Cristian Vitale
- Laboratorio de Química Orgánica, Departamento de Química, Universidad Nacional del Sur (INQUISUR), Bahía Blanca, Argentina
| | - Evangelina Mascaró
- Laboratorio de Química Orgánica, Departamento de Química, Universidad Nacional del Sur (INQUISUR), Bahía Blanca, Argentina
| | - Yagamare Fall
- Departamento de Química Orgánica, Facultad de Química and Instituto de Investigación Biomedica (IBI), University of Vigo, Campus Lagoas de Marcosende, 36310 Vigo, Spain
| | - Ana R Raimondi
- Area de Investigación, Instituto de Oncología "Angel H. Roffo", Buenos Aires, Argentina
| | - Alejandro C Curino
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas Bahía Blanca, Centro Científico Tecnológico Bahía Blanca (INIBIBB-CONICET), Bahía Blanca, Argentina
| | - María M Facchinetti
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas Bahía Blanca, Centro Científico Tecnológico Bahía Blanca (INIBIBB-CONICET), Bahía Blanca, Argentina.
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8
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Sikervar V, Fleet JC, Fuchs PL. A general approach to the synthesis of enantiopure 19-nor-Vitamin D3 and its C-2 phosphate analogs prepared from cyclohexadienyl sulfone. Chem Commun (Camb) 2012; 48:9077-9. [DOI: 10.1039/c2cc33054g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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9
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Salomón DG, Grioli SM, Buschiazzo M, Mascaró E, Vitale C, Radivoy G, Perez M, Fall Y, Mesri EA, Curino AC, Facchinetti MM. Novel alkynylphosphonate analogue of calcitriol with potent antiproliferative effects in cancer cells and lack of calcemic activity. ACS Med Chem Lett 2011; 2:503-8. [PMID: 24900339 DOI: 10.1021/ml200034w] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2011] [Accepted: 04/11/2011] [Indexed: 11/29/2022] Open
Abstract
Here, we describe the design and synthesis of diethyl [(5Z,7E)-(1S,3R)-1,3-dihydroxy-9,10-secochola-5,7,10(19)-trien-23-in-24-yl] phosphonate (compound 10), which combines the low calcemic properties of phosphonates with the decreased metabolic inactivation due to the presence of a triple bond in C-24 and studied its in vitro effects on several cancer cell lines and its in vivo effects on blood calcium levels. We demonstrate that this compound is a potent antiproliferative vitamin D analogue, showing lack of calcemic effects in vivo.
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Affiliation(s)
- Débora G. Salomón
- Laboratorio de Biología Básica del Cáncer, Instituto de Investigaciones Bioquímicas Bahía Blanca (INIBIBB), 8000, Bahía Blanca, Argentina
| | - Silvina M. Grioli
- Laboratorio de Biología Básica del Cáncer, Instituto de Investigaciones Bioquímicas Bahía Blanca (INIBIBB), 8000, Bahía Blanca, Argentina
| | - Maximiliano Buschiazzo
- Laboratorio de Biología Básica del Cáncer, Instituto de Investigaciones Bioquímicas Bahía Blanca (INIBIBB), 8000, Bahía Blanca, Argentina
| | - Evangelina Mascaró
- Departamento de Química, Instituto de Química del Sur (Inquisur-Conicet), Universidad Nacional del Sur, 8000 Bahía Blanca, Argentina
| | - Cristian Vitale
- Departamento de Química, Instituto de Química del Sur (Inquisur-Conicet), Universidad Nacional del Sur, 8000 Bahía Blanca, Argentina
| | - Gabriel Radivoy
- Departamento de Química, Instituto de Química del Sur (Inquisur-Conicet), Universidad Nacional del Sur, 8000 Bahía Blanca, Argentina
| | - Manuel Perez
- Departamento de Química Orgánica, Facultad de Química, Universidad de Vigo, 36200, España
| | - Yagamare Fall
- Departamento de Química Orgánica, Facultad de Química, Universidad de Vigo, 36200, España
| | - Enrique A. Mesri
- Microbiology and Immunology & Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida, 33136, United States
| | - Alejandro C. Curino
- Laboratorio de Biología Básica del Cáncer, Instituto de Investigaciones Bioquímicas Bahía Blanca (INIBIBB), 8000, Bahía Blanca, Argentina
| | - María M. Facchinetti
- Laboratorio de Biología Básica del Cáncer, Instituto de Investigaciones Bioquímicas Bahía Blanca (INIBIBB), 8000, Bahía Blanca, Argentina
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10
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Tabuchi Y, Ando Y, Kanemura H, Kawasaki I, Ohishi T, Koida M, Fukuyama R, Nakamuta H, Ohta S, Nishide K, Ohishi Y. Preparation of novel (Z)-4-ylidenebenzo[b]furo[3,2-d][1,3]oxazines and their biological activity. Bioorg Med Chem 2009; 17:3959-67. [PMID: 19406645 PMCID: PMC7127799 DOI: 10.1016/j.bmc.2009.04.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2009] [Revised: 04/06/2009] [Accepted: 04/07/2009] [Indexed: 11/30/2022]
Abstract
A reaction of 2-acetyl-3-acylaminobenzo[b]furans (9d–o) with Vilsmeier (VM) reagent afforded a mixture of (E)- and (Z)-{(E)-2-aralkenylbenzo[b]furo[3,2-d][1,3]oxazin-4-ylidene}acetaldehydes (5) with a characteristic exo-formylmethylene group on the oxazine ring. The Z-isomer was more stable than the E-isomer. The Z-isomers ((Z)-5) were reacted with phosphonate reagents under two different conditions to obtain various butadiene derivatives (12) containing benzo[b]furo[3,2-d][1,3]oxazine skeleton. Typical compounds (5 and 12) were evaluated for their anti-osteoclastic bone resorption activity, antagonistic activity for the cysLT1 receptor and growth inhibitory activity for MIA PaCa-2 and MCF-7. Compounds 12f and 12j showed potent anti-osteoclastic bone resorption activity comparable to E2 (17β-estradiol).
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Affiliation(s)
- Yukako Tabuchi
- School of Pharmaceutical Sciences, Mukogawa Women's University, 11-68 Koshien Kyubancho, Nishinomiya, Hyogo 663-8179, Japan
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11
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Gándara Z, Diouf O, Gómez G, Fall Y. The thioacetate approach to vitamin D analogues. Part 2: Synthesis of (25S)-23-thia-1α,25,26-trihydroxyvitamin D3. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.07.086] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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12
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Westermann J, Schneider M, Platzek J, Petrov O. Practical Synthesis of a Heterocyclic Immunosuppressive Vitamin D Analogue. Org Process Res Dev 2007. [DOI: 10.1021/op060130d] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Juergen Westermann
- Schering AG Berlin, Chemical Process Development, Muellerstrasse 178, D-13342 Berlin, Germany
| | - Matthias Schneider
- Schering AG Berlin, Chemical Process Development, Muellerstrasse 178, D-13342 Berlin, Germany
| | - Johannes Platzek
- Schering AG Berlin, Chemical Process Development, Muellerstrasse 178, D-13342 Berlin, Germany
| | - Orlin Petrov
- Schering AG Berlin, Chemical Process Development, Muellerstrasse 178, D-13342 Berlin, Germany
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