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Barker G, Rapposelli S. New Synthetic Methodology for Drug-like Molecules. Molecules 2023; 28:5632. [PMID: 37570616 PMCID: PMC10419429 DOI: 10.3390/molecules28155632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 07/20/2023] [Indexed: 08/13/2023] Open
Abstract
The field of synthetic methodology plays a pivotal role in the quest for safe and effective drugs [...].
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Affiliation(s)
- Graeme Barker
- Institute of Chemical Sciences, Heriot-Watt University, Riccarton, Edinburgh EH14 4AS, UK
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2
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Niu C, Du DM. A squaramide-catalysed asymmetric cascade Michael addition/acyl transfer reaction between unsaturated benzothiophenones and α-nitroketones. Org Biomol Chem 2022; 20:840-846. [PMID: 35018912 DOI: 10.1039/d1ob02217b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
An efficient and practical organocatalytic asymmetric strategy was developed using unsaturated benzothiophenones and α-nitroketones catalysed by bifunctional squaramide via Michael addition and acyl transfer steps. A broad range of chiral acyloxybenzothiophene derivatives were obtained in good yields (up to 97%) with excellent enantioselectivities (up to 98% ee). What's more, employing different chiral squaramide catalysts and unsaturated benzothiophenones can deliver the acyloxy unit at the 2-position or 3-position of benzothiophene.
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Affiliation(s)
- Cheng Niu
- Key Laboratory of Medical Molecule Science & Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, No. 5 Zhongguancun South Street, Beijing 100081, People's Republic of China.
| | - Da-Ming Du
- Key Laboratory of Medical Molecule Science & Pharmaceutics Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, No. 5 Zhongguancun South Street, Beijing 100081, People's Republic of China.
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A Novel PIFA/KOH Promoted Approach to Synthesize C2-arylacylated Benzothiazoles as Potential Drug Scaffolds. Molecules 2022; 27:molecules27030726. [PMID: 35163992 PMCID: PMC8838045 DOI: 10.3390/molecules27030726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/20/2022] [Accepted: 01/21/2022] [Indexed: 02/01/2023] Open
Abstract
To discover an efficient and convenient method to synthesize C2-arylacylated benzothiazoles as potential drug scaffolds, a novel [bis(trifluoroacetoxy)iodo]benzene(PIFA)/KOH synergistically promoted direct ring-opening C2-arylacylation reaction of 2H-benzothiazoles with aryl methyl ketones has been developed. Various substrates were tolerated under optimized conditions affording the C2-arylacylation products in 70-95% yields for 38 examples. A plausible mechanism was also proposed based on a series of controlled experiments.
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Singh M, Jamra. R, Paul AK, Malakar CC, Singh V. KI‐assisted Sulfur Activation/Insertion/Denitration Strategy towards Dual C−S Bond Formation for One‐pot Synthesis of β‐Carboline‐tethered 2‐Acylbenzothiophenes. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Manpreet Singh
- Department of Chemistry Dr B R Ambedkar National Institute of Technology (NIT) Jalandhar 144011 Punjab India
| | - Rahul Jamra.
- Department of Chemistry Dr B R Ambedkar National Institute of Technology (NIT) Jalandhar 144011 Punjab India
- Department of Chemistry Central University of Punjab Bathinda 151401 Punjab India
| | - Avijit K. Paul
- Department of Chemistry National Institute of Technology Kurukshetra 136119 Haryana India
| | - Chandi C. Malakar
- Department of Chemistry National Institute of Technology Imphal 795004 Manipur India
| | - Virender Singh
- Department of Chemistry Dr B R Ambedkar National Institute of Technology (NIT) Jalandhar 144011 Punjab India
- Department of Chemistry Central University of Punjab Bathinda 151401 Punjab India
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Kamlah A, Bracher F. A Novel Approach to Highly Substituted β‐Carbolines via Reductive Ring Transformation of 2‐Acyl‐3‐isoxazolylindoles. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000230] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Alexandra Kamlah
- Department of Pharmacy Center for Drug Research Ludwig‐Maximilians University Butenandtstr. 5‐13 81377 Munich Germany
| | - Franz Bracher
- Department of Pharmacy Center for Drug Research Ludwig‐Maximilians University Butenandtstr. 5‐13 81377 Munich Germany
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Salah M, Abdelsamie AS, Frotscher M. Inhibitors of 17β-hydroxysteroid dehydrogenase type 1, 2 and 14: Structures, biological activities and future challenges. Mol Cell Endocrinol 2019; 489:66-81. [PMID: 30336189 DOI: 10.1016/j.mce.2018.10.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 08/27/2018] [Accepted: 10/04/2018] [Indexed: 12/16/2022]
Abstract
During the past 25 years, the modulation of estrogen action by inhibition of 17β-hydroxysteroid dehydrogenase types 1 and 2 (17β-HSD1 and 17β-HSD2), respectively, has been pursued intensively. In the search for novel treatment options for estrogen-dependent diseases (EDD) and in order to explore estrogenic signaling pathways, a large number of steroidal and nonsteroidal inhibitors of these enzymes has been described in the literature. The present review gives a survey on the development of inhibitor classes as well as the structural formulas and biological properties of their most interesting representatives. In addition, rationally designed dual inhibitors of both 17β-HSD1 and steroid sulfatase (STS) as well as the first inhibitors of 17β-HSD14 are covered.
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Affiliation(s)
- Mohamed Salah
- Pharmaceutical and Medicinal Chemistry, Saarland University, Campus C23, D-66123, Saarbrücken, Germany
| | - Ahmed S Abdelsamie
- Department of Drug Design and Optimization, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Campus E81, 66123, Saarbrücken, Germany; Chemistry of Natural and Microbial Products Department, National Research Centre, Dokki, 12622, Cairo, Egypt
| | - Martin Frotscher
- Pharmaceutical and Medicinal Chemistry, Saarland University, Campus C23, D-66123, Saarbrücken, Germany.
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7
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Siebenbuerger L, Hernandez-Olmos V, Abdelsamie AS, Frotscher M, van Koppen CJ, Marchais-Oberwinkler S, Scheuer C, Laschke MW, Menger MD, Boerger C, Hartmann RW. Highly Potent 17β-HSD2 Inhibitors with a Promising Pharmacokinetic Profile for Targeted Osteoporosis Therapy. J Med Chem 2018; 61:10724-10738. [PMID: 30480443 DOI: 10.1021/acs.jmedchem.8b01373] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Intracellular elevation of E2 levels in bone by inhibition of 17β hydroxysteroid dehydrogenase type 2 (17β-HSD2) without affecting systemic E2 levels is an attractive approach for a targeted therapy against osteoporosis, a disease which is characterized by loss of bone mineral density. Previously identified inhibitor A shows high potency on human and mouse 17β-HSD2, but poor pharmacokinetic properties when applied perorally in mice. A combinatorial chemistry approach was utilized to synthesize truncated derivatives of A, leading to highly potent compounds with activities in the low nanomolar to picomolar range. Compound 33, comparable to A in terms of inhibitor potency against both human and mouse enzymes, displays high in vitro metabolic stability in human and mouse liver S9 fraction as well as low toxicity and moderate hepatic CYP inhibition. Thus, compound 33 showed a highly improved peroral pharmacokinetic profile in comparison to A, making 33 a promising candidate for further development.
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Affiliation(s)
| | - Victor Hernandez-Olmos
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Branch for Translational Medicine and Pharmacology TMP , Theodor-Stern-Kai 7 , 60596 Frankfurt am Main , Germany
| | - Ahmed S Abdelsamie
- Chemistry of Natural and Microbial Products Department , National Research Centre , Dokki, 12622 Cairo , Egypt.,Department of Pharmacy , Saarland University , Campus C2.3 , 66123 Saarbrücken , Germany
| | - Martin Frotscher
- Department of Pharmacy , Saarland University , Campus C2.3 , 66123 Saarbrücken , Germany
| | | | | | - Claudia Scheuer
- Institute for Clinical and Experimental Surgery , Saarland University , 66421 Homburg/Saar , Germany
| | - Matthias W Laschke
- Institute for Clinical and Experimental Surgery , Saarland University , 66421 Homburg/Saar , Germany
| | - Michael D Menger
- Institute for Clinical and Experimental Surgery , Saarland University , 66421 Homburg/Saar , Germany
| | - Carsten Boerger
- PharmBioTec GmbH , Science Park 1 , 66123 Saarbrücken , Germany
| | - Rolf W Hartmann
- Department of Pharmacy , Saarland University , Campus C2.3 , 66123 Saarbrücken , Germany.,Department of Drug Design and Optimization , Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) , Campus E8.1 , 66123 Saarbrücken , Germany
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Salah M, Abdel-Halim M, Engel M. Design and synthesis of conformationally constraint Dyrk1A inhibitors by creating an intramolecular H-bond involving a benzothiazole core. MEDCHEMCOMM 2018; 9:1045-1053. [PMID: 30108993 DOI: 10.1039/c8md00142a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 05/27/2018] [Indexed: 11/21/2022]
Abstract
We present the development of conformationally pre-organised Dyrk1A inhibitors based on the hydroxybenzothiazole urea scaffold. The modifications introduced to the discovered hit (AHS-211) proved the crucial role of the urea linker to preserve the bioactive conformation and led to the development of compound b5 as a promising selective Dyrk1A inhibitor.
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Affiliation(s)
- Mohamed Salah
- Pharmaceutical and Medicinal Chemistry , Saarland University , Campus C2.3 , D-66123 Saarbrücken , Germany . ; http://www.pharmmedchem.de ; ; Tel: +49 681 302 70312
| | - Mohammad Abdel-Halim
- Department of Pharmaceutical Chemistry , Faculty of Pharmacy and Biotechnology , German University in Cairo , Cairo 11835 , Egypt
| | - Matthias Engel
- Pharmaceutical and Medicinal Chemistry , Saarland University , Campus C2.3 , D-66123 Saarbrücken , Germany . ; http://www.pharmmedchem.de ; ; Tel: +49 681 302 70312
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Hilborn E, Stål O, Jansson A. Estrogen and androgen-converting enzymes 17β-hydroxysteroid dehydrogenase and their involvement in cancer: with a special focus on 17β-hydroxysteroid dehydrogenase type 1, 2, and breast cancer. Oncotarget 2018; 8:30552-30562. [PMID: 28430630 PMCID: PMC5444764 DOI: 10.18632/oncotarget.15547] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 02/12/2017] [Indexed: 12/12/2022] Open
Abstract
Sex steroid hormones such as estrogens and androgens are involved in the development and differentiation of the breast tissue. The activity and concentration of sex steroids is determined by the availability from the circulation, and on local conversion. This conversion is primarily mediated by aromatase, steroid sulfatase, and 17β-hydroxysteroid dehydrogenases. In postmenopausal women, this is the primary source of estrogens in the breast. Up to 70-80% of all breast cancers express the estrogen receptor-α, responsible for promoting the growth of the tissue. Further, 60-80% express the androgen receptor, which has been shown to have tissue protective effects in estrogen receptor positive breast cancer, and a more ambiguous response in estrogen receptor negative breast cancers. In this review, we summarize the function and clinical relevance in cancer for 17β-hydroxysteroid dehydrogenases 1, which facilitates the reduction of estrone to estradiol, dehydroepiandrosterone to androstendiol and dihydrotestosterone to 3α- and 3β-diol as well as 17β-hydroxysteroid dehydrogenases 2 which mediates the oxidation of estradiol to estrone, testosterone to androstenedione and androstendiol to dehydroepiandrosterone. The expression of 17β-hydroxysteroid dehydrogenases 1 and 2 alone and in combination has been shown to predict patient outcome, and inhibition of 17β-hydroxysteroid dehydrogenases 1 has been proposed to be a prime candidate for inhibition in patients who develop aromatase inhibitor resistance or in combination with aromatase inhibitors as a first line treatment. Here we review the status of inhibitors against 17β-hydroxysteroid dehydrogenases 1. In addition, we review the involvement of 17β-hydroxysteroid dehydrogenases 4, 5, 7, and 14 in breast cancer.
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Affiliation(s)
- Erik Hilborn
- Department of Clinical and Experimental Medicine and Department of Oncology, Faculty of Health Sciences, Linköping University, Linköping, Sweden
| | - Olle Stål
- Department of Clinical and Experimental Medicine and Department of Oncology, Faculty of Health Sciences, Linköping University, Linköping, Sweden
| | - Agneta Jansson
- Department of Clinical and Experimental Medicine and Department of Oncology, Faculty of Health Sciences, Linköping University, Linköping, Sweden
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Sangeetha S, Sekar G. Synthesis of 2-Acylbenzo[b]thiophenes via Cu-Catalyzed α-C–H Functionalization of 2-Halochalcones Using Xanthate. Org Lett 2017; 19:1670-1673. [DOI: 10.1021/acs.orglett.7b00462] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Subramani Sangeetha
- Department of chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Govindasamy Sekar
- Department of chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
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Current knowledge of the multifunctional 17β-hydroxysteroid dehydrogenase type 1 (HSD17B1). Gene 2016; 588:54-61. [PMID: 27102893 DOI: 10.1016/j.gene.2016.04.031] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 02/10/2016] [Accepted: 04/11/2016] [Indexed: 02/06/2023]
Abstract
At the late 1940s, 17β-HSD1 was discovered as the first member of the 17β-HSD family with its gene cloned. The three-dimensional structure of human 17β-HSD1 is the first example of any human steroid converting enzyme. The human enzyme's structure and biological function have thus been studied extensively in the last two decades. In humans, the enzyme is expressed in placenta, ovary, endometrium and breast. The high activity of estrogen activation provides the basis of 17β-HSD1's implication in estrogen-dependent diseases, such as breast cancer, endometriosis and non-small cell lung carcinomas. Its dual function in estrogen activation and androgen inactivation has been revealed in molecular and breast cancer cell levels, significantly stimulating the proliferation of such cells. The enzyme's overexpression in breast cancer was demonstrated by clinical samples. Inhibition of human 17β-HSD1 led to xenograft tumor shrinkage. Unfortunately, through decades of studies, there is still no drug using the enzyme's inhibitors available. This is due to the difficulty to get rid of the estrogenic activity of its inhibitors, which are mostly estrogen analogues. New non-steroid inhibitors for the enzyme provide new hope for non-estrogenic inhibitors of the enzyme.
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A new approach to 1-substituted β-carbolines and isoquinolines utilizing tributyl[(Z)-2-ethoxyvinyl]stannane as a C-3,C-4 building block. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.12.049] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Abdelsamie AS, Bey E, Gargano EM, van Koppen CJ, Empting M, Frotscher M. Towards the evaluation in an animal disease model: Fluorinated 17β-HSD1 inhibitors showing strong activity towards both the human and the rat enzyme. Eur J Med Chem 2015; 103:56-68. [DOI: 10.1016/j.ejmech.2015.08.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 08/07/2015] [Accepted: 08/13/2015] [Indexed: 01/22/2023]
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Mariano M, Schmitt C, Miralinaghi P, Catto M, Hartmann RW, Carotti A, Engel M. First selective dual inhibitors of tau phosphorylation and Beta-amyloid aggregation, two major pathogenic mechanisms in Alzheimer's disease. ACS Chem Neurosci 2014; 5:1198-202. [PMID: 25247807 DOI: 10.1021/cn5001815] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
In Alzheimer's disease (AD), multiple factors account for the accumulation of neurocellular changes, which may begin several years before symptoms appear. The most important pathogenic brain changes that are contributing to the development of AD are the formation of the cytotoxic β-amyloid aggregates and of the neurofibrillary tangles, which originate from amyloid-β peptides and hyperphosphorylated tau protein, respectively. New therapeutic agents that target both major pathogenic mechanisms may be particularly efficient. In this study, we introduce bis(hydroxyphenyl)-substituted thiophenes as a novel class of selective, dual inhibitors of the tau kinase Dyrk1A and of the amyloid-β aggregation.
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Affiliation(s)
- Marica Mariano
- Department of Pharmaceutical and Medicinal Chemistry, Saarland University , Saarbrücken 66123, Germany
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