1
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Zhu J, Yan J, Wang F, Zhang L, Li J, Cheng M, Yang L, Liu Y. Gold-Catalyzed Oxidative Rearrangement Strategy to Yield 2-Hydroxycyclohepta-1,3-diene-1-carbonyl Compounds. J Org Chem 2024; 89:8734-8744. [PMID: 38814709 DOI: 10.1021/acs.joc.4c00648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
A gold-catalyzed oxidative rearrangement of propargyl alcohols, derived from commercially available cyclohex-2-en-1-ones and alkynes, was successfully developed for the efficient synthesis of seven-membered rings. Thorough investigations were conducted to optimize the reaction conditions and evaluate its compatibility with various functional groups. Additionally, this methodology was applied to the formal total synthesis of guanacastepene A, demonstrating its practical utility in complex natural product synthesis. This versatile and efficient approach opens up new possibilities for the construction of diverse seven-membered ring systems, providing valuable building blocks for further exploration in drug discovery and the synthesis of intricate molecules.
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Affiliation(s)
- Jiang Zhu
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, P. R. China
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P. R. China
- Institute of Drug Research in Medicine Capital of China, Benxi 117000, P. R. China
| | - Jianghao Yan
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, P. R. China
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P. R. China
- Institute of Drug Research in Medicine Capital of China, Benxi 117000, P. R. China
| | - Fudong Wang
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, P. R. China
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P. R. China
- Institute of Drug Research in Medicine Capital of China, Benxi 117000, P. R. China
| | - Lianjie Zhang
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, P. R. China
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P. R. China
- Institute of Drug Research in Medicine Capital of China, Benxi 117000, P. R. China
| | - Jiaji Li
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, P. R. China
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P. R. China
- Institute of Drug Research in Medicine Capital of China, Benxi 117000, P. R. China
| | - Maosheng Cheng
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, P. R. China
- Institute of Drug Research in Medicine Capital of China, Benxi 117000, P. R. China
| | - Lu Yang
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, P. R. China
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P. R. China
- Institute of Drug Research in Medicine Capital of China, Benxi 117000, P. R. China
| | - Yongxiang Liu
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, P. R. China
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P. R. China
- Institute of Drug Research in Medicine Capital of China, Benxi 117000, P. R. China
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2
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Wang XN, Zhao Z, Chen J, Wang N, Chang J. Annulations of Ynamides with 1,2-Benzisothiazoles to Construct 1,4-Benzothiazepines and 3-Aminoisoquinolines. Org Lett 2024; 26:1522-1527. [PMID: 38349248 DOI: 10.1021/acs.orglett.4c00247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Two distinct TMSOTf-catalyzed annulation reactions between ynamides and 1,2-benzisothiazoles have been developed. The direction of the reaction could be easily switched by applying different thermodynamic-controlled conditions. At room temperature, ynamides undergo a [5 + 2] annulation reaction with 1,2-benzisothiazoles to afford 1,4-benzothiazepines, whereas under heating conditions a desulfurizative annulation reaction proceeds well to access 3-aminoisoquinolines. These two protocols provide biologically important 1,4-benzothiazepines and 3-aminoisoquinolines with high efficiency with broad substrate scopes under mild reaction conditions.
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Affiliation(s)
- Xiao-Na Wang
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Zhen Zhao
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Jinyue Chen
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Nanfang Wang
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Junbiao Chang
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
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3
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Du Y, Li Q, Wang T, Wang YQ. Enantioselective Synthesis of Biphenyl-Bridged ϵ-Sultams by Organocatalytic Mannich Reactions of Cyclic N-Sulfonylimines with Unactivated Ketones. Chemistry 2024; 30:e202302904. [PMID: 37936501 DOI: 10.1002/chem.202302904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/09/2023]
Abstract
A highly enantioselective Mannich reaction of biphenyl-bridged seven-membered cyclic N-sulfonylimines with methyl alkyl ketones is disclosed in this study. The reaction was performed under organocatalysis by using a quinine-derived primary amine as the catalyst in combination with a Brønsted acid as the co-catalyst. High yields (up to 89 %) and excellent enantioselectivities (up to 97 % ee) were observed. For methyl alkyl ketones containing a larger alkyl substituent, specific regioselective addition to the C=N bond is favored at the methyl group. On the contrary, ketones containing a smaller alkyl substituent or hydroxyacetone substrates gave major syn selective Mannich products at the methylene group.
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Affiliation(s)
- Ying Du
- Key Laboratory of Natural Medicine and, Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Qian Li
- Key Laboratory of Natural Medicine and, Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Tao Wang
- Key Laboratory of Natural Medicine and, Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - You-Qing Wang
- Key Laboratory of Natural Medicine and, Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
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4
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De Vita S, Meninno S, Capasso L, Colarusso E, Chini MG, Lauro G, Rinaldi R, De Cicco A, Sian V, Terracciano S, Nebbioso A, Lattanzi A, Bifulco G. 2-Substituted 1,5-benzothiazepine-based HDAC inhibitors exert anticancer activities on human solid and acute myeloid leukemia cell lines. Bioorg Med Chem 2023; 93:117444. [PMID: 37611334 DOI: 10.1016/j.bmc.2023.117444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/31/2023] [Accepted: 08/11/2023] [Indexed: 08/25/2023]
Abstract
Herein, we report the development of a new series of histone deacetylase inhibitors (HDACi) containing a 2-substituted 1,5-benzothiazepine scaffold. First, a virtual combinatorial library (∼1.6 × 103 items) was built according to a convenient synthetic route, and then it was submitted to molecular docking experiments on seven HDACs isoforms belonging to classes I and II. Integrated computational filters were used to select the most promising ones that were synthesized through an optimized approach, also amenable to generating both racemic and enantioenriched benzothiazepine-based derivatives. The obtained compounds showed potent HDAC inhibitory activity, especially those containing the sulphone moiety, endowed with IC50 in the nanomolar range. In addition, in vitro outcomes of our synthesized compounds demonstrated a cytotoxic effect on U937 and HCT116 cell lines and an arrest in the G2/M phase (13 ≤ IC50 ≤ 18 µM). Finally, Western blot analyses outlined the modulation of the histone acetyl markers such as H3K9/14, acetyl-tubulin, and the apoptotic indicator p21 in both cancer cell lines, disclosing a good HDAC inhibitor activity exerted by the designed items. Given the key role of HDACs in many cellular pathways, which makes these enzymes appealing and "hot" drug targets, our findings highlighted the importance of these 2-substituted 1,5-benzothiazepine-based compounds (both in the reduced and oxidized version) for the development of novel epidrugs.
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Affiliation(s)
- Simona De Vita
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
| | - Sara Meninno
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
| | - Lucia Capasso
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico L. De Crecchio 7, 80138 Naples, Italy.
| | - Ester Colarusso
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
| | - Maria Giovanna Chini
- Department of Biosciences and Territory, University of Molise, Contrada Fonte Lappone, Pesche, Isernia 86090, Italy.
| | - Gianluigi Lauro
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
| | - Romolo Rinaldi
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
| | - Annalisa De Cicco
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
| | - Veronica Sian
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico L. De Crecchio 7, 80138 Naples, Italy.
| | - Stefania Terracciano
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
| | - Angela Nebbioso
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico L. De Crecchio 7, 80138 Naples, Italy.
| | - Alessandra Lattanzi
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
| | - Giuseppe Bifulco
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
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5
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Wang ZH, Zhang T, Shen LW, Yang X, Zhang YP, You Y, Zhao JQ, Yuan WC. Diverse Synthesis of Fused Polyheterocyclic Compounds via [3 + 2] Cycloaddition of In Situ-Generated Heteroaromatic N-Ylides and Electron-Deficient Olefins. Molecules 2023; 28:molecules28114410. [PMID: 37298885 DOI: 10.3390/molecules28114410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023] Open
Abstract
[3 + 2] Cycloaddition reactions of heteroaromatic N-ylides with electron-deficient olefins have been developed. The heteroaromatic N-ylides, in situ generated from N-phenacylbenzothiazolium bromides, can smoothly react with maleimides under very mild conditions, affording fused polycyclic octahydropyrrolo[3,4-c]pyrroles in good-to-excellent isolated yields. This reaction concept could also be extended to 3-trifluoroethylidene oxindoles and benzylidenemalononitriles as electron-deficient olefins for accessing highly functionalized polyheterocyclic compounds. A gram-scale experiment was also carried out to verify the practicability of the methodology.
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Affiliation(s)
- Zhen-Hua Wang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Tong Zhang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Li-Wen Shen
- College of Chemistry and Chemical Engineering, Zunyi Normal University, Zunyi 563006, China
| | - Xiu Yang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yan-Ping Zhang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yong You
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Jian-Qiang Zhao
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Wei-Cheng Yuan
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
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6
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Al-Rooqi M, Sadiq A, Obaid RJ, Ashraf Z, Nazir Y, Jassas RS, Naeem N, Alsharif MA, Shah SWA, Moussa Z, Mughal EU, Farghaly AR, Ahmed SA. Evaluation of 2,3-Dihydro-1,5-benzothiazepine Derivatives as Potential Tyrosinase Inhibitors: In Vitro and In Silico Studies. ACS OMEGA 2023; 8:17195-17208. [PMID: 37214694 PMCID: PMC10193543 DOI: 10.1021/acsomega.3c01566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 04/20/2023] [Indexed: 05/24/2023]
Abstract
Benzothiazepines are pharmacologically active compounds, frequently utilized as a precursor for acquiring versatile molecules with several bioactivities including anti-inflammatory, anti-human immunodeficiency virus (anti-HIV), analgesic, antitumor, antimicrobial, and antitubercular. In this study, the 2,4-diphenyl-2,3-dihydro-1,5-benzothiazepine scaffold was selected for their in vitro, docking, and druglikeness studies to evaluate their inhibitory potential against mushroom tyrosinase. All synthesized analogues, 1-14, exhibited moderate to good IC50 values ranging from 1.21 to 70.65 μM. The synthesized benzothiazepine derivatives were potent tyrosinase inhibitors, which outperformed the reference kojic acid (IC50 = 16.69 μM). The kinetic analysis revealed that compound 2 (2-(3,4-dimethoxyphenyl)-4-(p-tolyl)-2,3-dihydrobenzo[b][1,4]thiazepine) was a mixed-type tyrosinase inhibitor with a Ki value of 1.01 μM. Molecular modeling studies against tyrosinase protein (PDB ID: 2Y9X) were conducted to recognize the binding modes of these analogues. The utilization of molecular dynamic (MD) simulations enabled the assessment of the protein-ligand complex's dynamic behavior, stability, and binding affinity for the compounds. These simulations ultimately led to the identification of compound 2 as a potential inhibitor of tyrosinase. Additionally, a druglikeness study was conducted, which supported the promising potential of the new analogues as novel antityrosinase agents. The in silico studies were consistent with the in vitro results, showing that these ligands had good binding scores against tyrosinase and interacted with the core residues of the target protein. Gaussian 09 was used for the geometry optimization of all complexes.
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Affiliation(s)
- Munirah
M. Al-Rooqi
- Department
of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Amina Sadiq
- Department
of Chemistry, Govt. College Women University, Sialkot 51300, Pakistan
| | - Rami J. Obaid
- Department
of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Zaman Ashraf
- Department
of Chemistry, Allama Iqbal Open University, Islamabad 44000, Pakistan
| | - Yasir Nazir
- Department
of Chemistry, Allama Iqbal Open University, Islamabad 44000, Pakistan
- Department
of Chemistry, University of Sialkot, Sialkot 51300, Pakistan
| | - Rabab S. Jassas
- Department
of Chemistry, Jamoum University College, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Nafeesa Naeem
- Department
of Chemistry, University of Gujrat, Gujrat 50700, Pakistan
| | - Meshari A. Alsharif
- Department
of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Syed Wadud Ali Shah
- Department
of Pharmacy, University of Malakand, Chakdara Dir 18000, Khyber Pakhtunkhwa, Pakistan
| | - Ziad Moussa
- Department
of Chemistry, College of Science, United
Arab Emirates University, P.O. Box 15551, Al Ain, Abu Dhabi, United Arab Emirates
| | | | - Abdel-Rahman Farghaly
- Department
of Chemistry, College of Science, Jazan
University, Jazan 114, Saudi Arabia
| | - Saleh A. Ahmed
- Department
of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah 21955, Saudi Arabia
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7
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Ronse U, Magdalenić K, Van Camp J, D'hooghe M. Synthesis of the 1,5-Benzothiazepane Scaffold - Established Methods and New Developments. ChemistryOpen 2023; 12:e202200262. [PMID: 36807726 PMCID: PMC9942483 DOI: 10.1002/open.202200262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 02/04/2023] [Indexed: 02/23/2023] Open
Abstract
The 1,5-benzothiazepane structure is an important heterocyclic moiety present in a variety of commercial drugs and pharmaceuticals. This privileged scaffold exhibits a diversity of biological activities, including antimicrobial, antibacterial, anti-epileptic, anti-HIV, antidepressant, antithrombotic and anticancer properties. Its important pharmacological potential renders research into the development of new and efficient synthetic methods of high relevance. In the first part of this review, an overview of different synthetic approaches toward 1,5-benzothiazepane and its derivatives is provided, ranging from established protocols to recent (enantioselective) methods that promote sustainability. In the second part, several structural characteristics influencing biological activity are briefly explored, providing a few insights into the structure-activity relationships of these compounds.
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Affiliation(s)
- Ulrike Ronse
- SynBioC Research GroupDepartment of Green Chemistry and TechnologyFaculty of Bioscience EngineeringGhent UniversityCoupure Links 653Ghent9000Belgium
| | - Katarina Magdalenić
- SynBioC Research GroupDepartment of Green Chemistry and TechnologyFaculty of Bioscience EngineeringGhent UniversityCoupure Links 653Ghent9000Belgium
| | - John Van Camp
- Department of Food Technology, Safety and HealthGhent UniversityCoupure Links 653Ghent9000Belgium
| | - Matthias D'hooghe
- SynBioC Research GroupDepartment of Green Chemistry and TechnologyFaculty of Bioscience EngineeringGhent UniversityCoupure Links 653Ghent9000Belgium
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8
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Pradhan S, Muthuvel P, Thangamuthu MD. Synthesis of a novel series of [1,5]-benzothiazepine-C-β-D-glycoside derivatives in a facile one-pot method and insight into their anti-oxidant properties. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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9
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Nkoana JK, Maluleka MM, Mphahlele MJ, Mampa RM, Choong YS. Synthesis, Conformational Analysis and Evaluation of the 2-aryl-4-(4-bromo-2-hydroxyphenyl)benzo[1,5]thiazepines as Potential α-Glucosidase and/or α-Amylase Inhibitors. Molecules 2022; 27:molecules27206935. [PMID: 36296528 PMCID: PMC9607343 DOI: 10.3390/molecules27206935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 11/26/2022] Open
Abstract
The ambident electrophilic character of the 5-bromo-2-hydroxychalcones and the binucleophilic nature of 2-aminothiophenol were exploited to construct the 2-aryl-4-(4-bromo-2-hydroxyphenyl)benzo[1,5]thiazepines. The structures and conformation of these 2-aryl-4-(4-bromo-2-hydroxyphenyl)benzo[1,5]thiazepines were established with the use of spectroscopic techniques complemented with a single crystal X-ray diffraction method. Both 1H-NMR and IR spectroscopic techniques confirmed participation of the hydroxyl group in the intramolecular hydrogen-bonding interaction with a nitrogen atom. SC-XRD confirmed the presence of a six-membered intramolecularly hydrogen-bonded pseudo-aromatic ring, which was corroborated by the DFT method on 2b as a representative example in the gas phase. Compounds 2a (Ar = -C6H5), 2c (Ar = -C6H4(4-Cl)) and 2f (Ar = -C6H4(4-CH(CH3)2) exhibited increased inhibitory activity against α-glucosidase compared to acarbose (IC50 = 7.56 ± 0.42 µM), with IC50 values of 6.70 ± 0.15 µM, 2.69 ± 0.27 µM and 6.54 ± 0.11 µM, respectively. Compound 2f, which exhibited increased activity against α-glucosidase, also exhibited a significant inhibitory effect against α-amylase (IC50 = 9.71 ± 0.50 µM). The results of some computational approaches on aspects such as noncovalent interactions, calculated binding energies for α-glucosidase and α-amylase, ADME (absorption, distribution, metabolism and excretion) and bioavailability properties, gastrointestinal absorption and blood-brain barrier permeability are also presented.
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Affiliation(s)
- Jackson K. Nkoana
- Department of Chemistry, Faculty of Science and Agriculture, School of Physical and Mineral Sciences, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa
| | - Marole M. Maluleka
- Department of Chemistry, Faculty of Science and Agriculture, School of Physical and Mineral Sciences, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa
- Correspondence: (M.M.M.); (M.J.M.)
| | - Malose J. Mphahlele
- Department of Chemistry, College of Science, Engineering and Technology, University of South Africa, Private Bag X06, Floridapark 1710, South Africa
- Correspondence: (M.M.M.); (M.J.M.)
| | - Richard M. Mampa
- Department of Chemistry, Faculty of Science and Agriculture, School of Physical and Mineral Sciences, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa
| | - Yee Siew Choong
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, Minden 11800, Penang, Malaysia
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10
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Mehmood R, Mughal EU, Elkaeed EB, Obaid RJ, Nazir Y, Al-Ghulikah HA, Naeem N, Al-Rooqi MM, Ahmed SA, Shah SWA, Sadiq A. Synthesis of Novel 2,3-Dihydro-1,5-Benzothiazepines as α-Glucosidase Inhibitors: In Vitro, In Vivo, Kinetic, SAR, Molecular Docking, and QSAR Studies. ACS OMEGA 2022; 7:30215-30232. [PMID: 36061741 PMCID: PMC9435035 DOI: 10.1021/acsomega.2c03328] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 08/08/2022] [Indexed: 05/29/2023]
Abstract
In the present study, a series of 2,3-dihydro-1,5-benzothiazepine derivatives 1B-14B has been synthesized sand characterized by various spectroscopic techniques. The enzyme inhibitory activities of the target analogues were assessed using in vitro and in vivo mechanism-based assays. The tested compounds 1B-14B exhibited in vitro inhibitory potential against α-glucosidase with IC50 = 2.62 ± 0.16 to 10.11 ± 0.32 μM as compared to the standard drug acarbose (IC50 = 37.38 ± 1.37 μM). Kinetic studies of the most active derivatives 2B and 3B illustrated competitive inhibitions. Based on the α-glucosidase inhibitory effect, the compounds 2B, 3B, 6B, 7B, 12B, 13B, and 14B were chosen in vivo for further evaluation of antidiabetic activity in streptozotocin-induced diabetic Wistar rats. All these evaluated compounds demonstrated significant antidiabetic activity and were found to be nontoxic in nature. Moreover, the molecular docking study was performed to elucidate the binding interactions of most active analogues with the various sites of the α-glucosidase enzyme (PDB ID 3AJ7). Additionally, quantitative structure-activity relationship (QSAR) studies were performed based on the α-glucosidase inhibitory assay. The value of correlation coefficient (r) 0.9553 shows that there was a good correlation between the 1B-14B structures and selected properties. There is a correlation between the experimental and theoretical results. Thus, these novel compounds could serve as potential candidates to become leads for the development of new drugs provoking an anti-hyperglycemic effect.
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Affiliation(s)
- Rabia Mehmood
- Department
of Chemistry, Govt. College Women University, Sialkot 51300, Pakistan
| | | | - Eslam B. Elkaeed
- Department
of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Riyadh 13713, Saudi Arabia
| | - Rami J. Obaid
- Department
of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Yasir Nazir
- Department
of Chemistry, Allama Iqbal Open University, Islamabad 44000, Pakistan
- Department
of Chemistry, University of Sialkot, Sialkot 51300, Pakistan
| | - Hanan A. Al-Ghulikah
- Department
of Chemistry, College of Science, Princess
Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Nafeesa Naeem
- Department
of Chemistry, University of Gujrat, Gujrat 50700, Pakistan
| | - Munirah M. Al-Rooqi
- Department
of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Saleh A. Ahmed
- Department
of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah 21955, Saudi Arabia
- Department
of Chemistry, Faculty of Science, Assiut
University, Assiut 71516, Egypt
| | - Syed Wadood Ali Shah
- Department
of Pharmacy, University of Malakand, Chakdara Dir, Khyber Pakhtunkhwa 18800, Pakistan
| | - Amina Sadiq
- Department
of Chemistry, Govt. College Women University, Sialkot 51300, Pakistan
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11
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Zhu G, Zhou J, Liu L, Li X, Zhu X, Lu X, Zhou J, Ye L. Catalyst‐Dependent Stereospecific [3,3]‐Sigmatropic Rearrangement of Sulfoxide‐Ynamides: Divergent Synthesis of Chiral Medium‐Sized
N
,
S
‐Heterocycles. Angew Chem Int Ed Engl 2022; 61:e202204603. [DOI: 10.1002/anie.202204603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Indexed: 01/20/2023]
Affiliation(s)
- Guang‐Yu Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Ji‐Jia Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Li‐Gao Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Xiao Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Xin‐Qi Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Jin‐Mei Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Long‐Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China
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12
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1,5-Benzothiazepine Derivatives: Green Synthesis, In Silico and In Vitro Evaluation as Anticancer Agents. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123757. [PMID: 35744881 PMCID: PMC9228089 DOI: 10.3390/molecules27123757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/08/2022] [Accepted: 06/08/2022] [Indexed: 11/16/2022]
Abstract
Considering the importance of benzothiazepine pharmacophore, an attempt was carried out to synthesize novel 1,5-benzothiazepine derivatives using polyethylene glycol-400 (PEG-400)-mediated pathways. Initially, different chalcones were synthesized and then subjected to a cyclization step with benzothiazepine in the presence of bleaching clay and PEG-400. PEG-400-mediated synthesis resulted in a yield of more than 95% in less than an hour of reaction time. Synthesized compounds 2a–2j were investigated for their in vitro cytotoxic activity. Moreover, the same compounds were subjected to systematic in silico screening for the identification of target proteins such as human adenosine kinase, glycogen synthase kinase-3β, and human mitogen-activated protein kinase 1. The compounds showed promising results in cytotoxicity assays; among the tested compounds, 2c showed the most potent cytotoxic activity in the liver cancer cell line Hep G-2, with an IC50 of 3.29 ± 0.15 µM, whereas the standard drug IC50 was 4.68 ± 0.17 µM. In the prostate cancer cell line DU-145, the compounds displayed IC50 ranges of 15.42 ± 0.16 to 41.34 ± 0.12 µM, while the standard drug had an IC50 of 21.96 ± 0.15 µM. In terms of structural insights, the halogenated phenyl substitution on the second position of benzothiazepine was found to significantly improve the biological activity. This characteristic feature is supported by the binding patterns on the selected target proteins in docking simulations. In this study, 1,5-benzothiazepines have been identified as potential anticancer agents which can be further exploited for the development of more potent derivatives.
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13
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Zhu G, Zhou J, Liu L, Li X, Zhu X, Lu X, Zhou J, Ye L. Catalyst‐Dependent Stereospecific [3,3]‐Sigmatropic Rearrangement of Sulfoxide‐Ynamides: Divergent Synthesis of Chiral Medium‐Sized
N
,
S
‐Heterocycles. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Guang‐Yu Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Ji‐Jia Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Li‐Gao Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Xiao Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Xin‐Qi Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Jin‐Mei Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Long‐Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China
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14
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15
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Ouvry G. Recent applications of seven-membered rings in drug design. Bioorg Med Chem 2022; 57:116650. [PMID: 35123178 DOI: 10.1016/j.bmc.2022.116650] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/25/2022] [Accepted: 01/26/2022] [Indexed: 01/28/2023]
Abstract
This short review aims at highlighting recent design strategies hinged on using seven-membered rings. Analyses of the different selected examples coupled with torsion profiles derived from the CCDC suggest some of these strategies could have broad applications.
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Affiliation(s)
- Gilles Ouvry
- Evotec (U.K.) Ltd., 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire OX14 4RZ, UK
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16
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Andresini M, Tota A, Degennaro L, Bull JA, Luisi R. Synthesis and Transformations of NH-Sulfoximines. Chemistry 2021; 27:17293-17321. [PMID: 34519376 PMCID: PMC9291533 DOI: 10.1002/chem.202102619] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Indexed: 11/17/2022]
Abstract
Recent years have seen a marked increase in the occurrence of sulfoximines in the chemical sciences, often presented as valuable motifs for medicinal chemistry. This has been prompted by both pioneering works taking sulfoximine containing compounds into clinical trials and the concurrent development of powerful synthetic methods. This review covers recent developments in the synthesis of sulfoximines concentrating on developments since 2015. This includes extensive developments in both S-N and S-C bond formations. Flow chemistry processes for sulfoximine synthesis are also covered. Finally, subsequent transformations of sulfoximines, particularly in N-functionalization are reviewed, including N-S, N-P, N-C bond forming processes and cyclization reactions.
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Affiliation(s)
- Michael Andresini
- Department of Pharmacy-Drug SciencesUniversity of Bari “A. Moro”Via E. Orabona 470125BariItaly
| | - Arianna Tota
- Department of Pharmacy-Drug SciencesUniversity of Bari “A. Moro”Via E. Orabona 470125BariItaly
| | - Leonardo Degennaro
- Department of Pharmacy-Drug SciencesUniversity of Bari “A. Moro”Via E. Orabona 470125BariItaly
| | - James A. Bull
- Department of Chemistry Imperial College LondonMolecular Sciences Research Hub White City Campus, Wood LaneLondonW12 0BZUK
| | - Renzo Luisi
- Department of Pharmacy-Drug SciencesUniversity of Bari “A. Moro”Via E. Orabona 470125BariItaly
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17
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Wang C, Liu X, Wang X, Cui H, Ma Z, Ding D, Liu J, Meng L, Chen Y. Synthesis of Functionalized 4,1‐Benzothiazepines via a [4+3] Annulation between Aza‐
o‐
Quinone Methides and Pyridinium 1,4‐Zwitterionic Thiolates. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101034] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Chuan‐Chuan Wang
- Faculty of Science Henan University of Animal Husbandry and Economy No. 146 Yingcai Street Zhengzhou 450044 Henan People's Republic of China
| | - Xue‐Hua Liu
- School of Pharmaceutical Sciences, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China Zhengzhou University 100 Science Avenue Zhengzhou 450001 Henan People's Republic of China
| | - Xin‐Lu Wang
- School of Pharmaceutical Sciences, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China Zhengzhou University 100 Science Avenue Zhengzhou 450001 Henan People's Republic of China
| | - Hua‐Peng Cui
- Zhengzhou Tobacco Research Institute of CNTC No. 2 Fengyang Street Zhengzhou 450001 Henan People's Republic of China
| | - Zhi‐Wei Ma
- Faculty of Science Henan University of Animal Husbandry and Economy No. 146 Yingcai Street Zhengzhou 450044 Henan People's Republic of China
| | - Degang Ding
- Faculty of Science Henan University of Animal Husbandry and Economy No. 146 Yingcai Street Zhengzhou 450044 Henan People's Republic of China
| | - Jun‐Tao Liu
- Faculty of Science Henan University of Animal Husbandry and Economy No. 146 Yingcai Street Zhengzhou 450044 Henan People's Republic of China
| | - Lei Meng
- Henan Institute of Veterinary Drug and Feed Control No. 91 Jingsan Road Zhengzhou 450008 Henan People's Republic of China
| | - Ya‐Jing Chen
- School of Pharmaceutical Sciences, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China Zhengzhou University 100 Science Avenue Zhengzhou 450001 Henan People's Republic of China
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18
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Synthesis of Dihydrobenzothiazepines Based On 1-acyl-2-heteryl-1-nitroethenes. Chem Heterocycl Compd (N Y) 2021. [DOI: 10.1007/s10593-021-03006-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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19
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Hoz ADL, Alkorta I, Elguero J. The mechanism of the reaction of hydrazines with α,β-unsaturated carbonyl compounds to afford hydrazones and 2-pyrazolines (4,5-dihydro-1H-pyrazoles): Experimental and theoretical results. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132413] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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20
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Shaik AB, Prasad YR, Nissankararao S, Shahanaaz S. Synthesis, Biological and Computational Evaluation of Novel 2,3-dihydro-2-aryl-4-(4- isobutylphenyl)-1,5-benzothiazepine Derivatives as Anticancer and Anti-EGFR Tyrosine Kinase Agents. Anticancer Agents Med Chem 2021; 20:1115-1128. [PMID: 32000647 DOI: 10.2174/1871520620666200130091142] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 11/22/2019] [Accepted: 12/31/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Despite the availability of a variety of chemotherapeutic agents, cancer is still one of the leading causes of death worldwide because of the problems with existing chemotherapeutic agents like objectionable side effects, lack of selectivity, and resistance. Hence, there is an urgent need for the development of novel anticancer agents with high usefulness, fewer side effects, devoid of resistance and superior selectivity. OBJECTIVE The objective of this study is to synthesize a series of novel 1,5-benzothiazepine derivatives and evaluate their anticancer activity employing biological and computational methods. METHODS Twenty new benzothiazepines (BT1-BT20) were prepared by condensing different 1-(4- isobutylphenyl)ethanone chalcones with 2-amiothiophenol and evaluated for their anticancer activity by MTT assay against three cell lines including HT-29 (colon cancer), MCF-7 (breast cancer) and DU-145 (prostate cancer). These compounds were also tested for their inhibitory action against EGFR (Epidermal Growth Factor Receptor) tyrosine kinase enzyme by taking into account of their excellent action against colon and breast cancer cell lines. Further, the structural features responsible for the activity were identified by Pharmacophorebased modelling using Schrodinger's PHASETM software. RESULTS Among the 20 benzothiazepine derivatives, three compounds viz., BT18, BT19 and BT20 exhibited promising activity against the cell lines tested and the activity of BT20 was more than the standard methotrexate. Again the above three compounds showed excellent inhibitory activity with the percentage inhibition of 64.5, 57.3 and 55.8 respectively against EGFR (Epidermal Growth Factor Receptor) tyrosine kinase. PHASE identified a five-point AHHRR model for the proposed activity and the computational studies provided insights into the structural requirements for the anticancer activity and the results were consistent with the observed in vitro activity data. CONCLUSION These novel benzothiazepines will be useful as lead molecules for the further development of new cancer therapies against colon and breast cancers.
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Affiliation(s)
- Afzal B Shaik
- A.U College of Pharmaceutical Sciences, Andhra University, Visakhapatnam-530001, Andhra Pradesh, India
| | - Yejella R Prasad
- A.U College of Pharmaceutical Sciences, Andhra University, Visakhapatnam-530001, Andhra Pradesh, India
| | | | - Shaik Shahanaaz
- Victoria College of Pharmacy, Nallapadu- 522001, Guntur District, Andhra Pradesh, India
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21
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Prakash M, Lodhi R, Samanta S. Substrate-Controlled Domino Reaction of N-Sulfonyl Ketimines with 2-Aroyl-1-chlorocyclopropanecarboxylates: Access to Cyclopenta[c]chromenes and Benzo[f]cyclopenta[d][1,2]thiazepine Dioxides. J Org Chem 2021; 86:6721-6733. [DOI: 10.1021/acs.joc.1c00459] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Meher Prakash
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, Madhya Pradesh 453552, India
| | - Rajni Lodhi
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, Madhya Pradesh 453552, India
| | - Sampak Samanta
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, Madhya Pradesh 453552, India
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22
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Meninno S, Franco F, Benaglia M, Lattanzi A. Pyrazoleamides in Catalytic Asymmetric Reactions: Recent Advances. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Sara Meninno
- Dipartimento di Chimica e Biologia “A. Zambelli” Università di Salerno Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Francesca Franco
- Dipartimento di Chimica e Biologia “A. Zambelli” Università di Salerno Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Maurizio Benaglia
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
| | - Alessandra Lattanzi
- Dipartimento di Chimica e Biologia “A. Zambelli” Università di Salerno Via Giovanni Paolo II 132 84084 Fisciano Italy
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23
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Shaik AB, Bhandare RR, Nissankararao S, Lokesh BVS, Shahanaaz S, Mukhlesur Rahman M. Synthesis, and biological screening of chloropyrazine conjugated benzothiazepine derivatives as potential antimicrobial, antitubercular and cytotoxic agents. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2020.102915] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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24
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Yadav J, Pawar AP, Nagare YK, Iype E, Rangan K, Ohshita J, Kumar D, Kumar I. Direct Amine-Catalyzed Enantioselective Synthesis of Pentacyclic Dibenzo[ b, f][1,4]oxazepine/Thiazepine-Fused Isoquinuclidines along with DFT Calculations. J Org Chem 2020; 85:14094-14108. [PMID: 33030896 DOI: 10.1021/acs.joc.0c02141] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A direct protocol for the asymmetric synthesis of dibenzoxazepine/thiazepine-fused [2.2.2] isoquinuclidines is developed. The reaction proceeds through a proline-catalyzed direct Mannich reaction followed by an intramolecular aza-Michael cascade sequence between 2-cyclohexene-1-one and various tricyclic imines, like dibenzoxazepines/thiazepines, as an overall [4 + 2] aza-Diels-Alder reaction. A series of pentacyclic isoquinuclidines have been prepared, with complete endo-selectivity, in good to high yields and excellent enantioselectivity (>99:1). Density functional theory (DFT) calculations further support the observed high stereochemical outcome of the reaction.
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Affiliation(s)
- Jyothi Yadav
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Pilani 333031, Rajasthan, India
| | - Amol Prakash Pawar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Pilani 333031, Rajasthan, India
| | - Yadav Kacharu Nagare
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Pilani 333031, Rajasthan, India
| | - Eldhose Iype
- Department of Chemical Engineering, Birla Institute of Technology and Science, Pilani, Dubai Campus, Dubai 345055, UAE
| | - Krishnan Rangan
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Hyderabad 500078, Telangana, India
| | - Joji Ohshita
- Applied Chemistry Program, Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan
| | - Dalip Kumar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Pilani 333031, Rajasthan, India
| | - Indresh Kumar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Pilani 333031, Rajasthan, India
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25
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Devi V, Singh G, Monga V. Recent advances in the synthetic chemistry of 1,5
‐benzothiazepines
: A minireview. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4062] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Varsha Devi
- Department of Pharmaceutical ChemistryISF College of Pharmacy Moga Punjab India
| | - Gurpreet Singh
- Department of Pharmaceutical ChemistryISF College of Pharmacy Moga Punjab India
| | - Vikramdeep Monga
- Department of Pharmaceutical ChemistryISF College of Pharmacy Moga Punjab India
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26
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Wang H, Gu S, Yan Q, Ding L, Chen FE. Asymmetric catalysis in synthetic strategies for chiral benzothiazepines. GREEN SYNTHESIS AND CATALYSIS 2020. [DOI: 10.1016/j.gresc.2020.05.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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27
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Reddy MB, Anandhan R. Visible light initiated amino group ortho-directed copper(i)-catalysed aerobic oxidative C(sp)-S coupling reaction: synthesis of substituted 2-phenylbenzothiazoles via thia-Wolff rearrangement. Chem Commun (Camb) 2020; 56:3781-3784. [PMID: 32129436 DOI: 10.1039/d0cc00815j] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A facile amino group ortho-directed visible-light-driven copper-catalysed aerobic oxidative C(sp)-S coupling reaction of a dimer of 2-aminothiophenol with terminal alkynes was achieved. This photochemical reaction shows an excellent conversion and chemoselectivity towards the formation of C(sp)-S coupling and has been employed for a wide range of thiol dimers, and alkynes. Furthermore, the synthetic utility of the synthesized alkynyl sulfides was demonstrated as a direct method for the construction of 2-phenylbenzothiazoles from the corresponding alkynyl sulfides via "thia-Wolff rearrangement" using AgNO3 and visible light using 9-mesityl-10-methylacridinium ions (Acr+-Mes) as photoredox catalyst system.
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Affiliation(s)
- Mandapati Bhargava Reddy
- Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai-600 025, Tamil Nadu, India.
| | - Ramasamy Anandhan
- Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai-600 025, Tamil Nadu, India.
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28
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Steppeler F, Iwan D, Wojaczyńska E, Wojaczyński J. Chiral Thioureas-Preparation and Significance in Asymmetric Synthesis and Medicinal Chemistry. Molecules 2020; 25:E401. [PMID: 31963671 PMCID: PMC7024223 DOI: 10.3390/molecules25020401] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 01/14/2020] [Accepted: 01/16/2020] [Indexed: 01/23/2023] Open
Abstract
For almost 20 years, thioureas have been experiencing a renaissance of interest with the emerged development of asymmetric organocatalysts. Due to their relatively high acidity and strong hydrogen bond donor capability, they differ significantly from ureas and offer, appropriately modified, great potential as organocatalysts, chelators, drug candidates, etc. The review focuses on the family of chiral thioureas, presenting an overview of the current state of knowledge on their synthesis and selected applications in stereoselective synthesis and drug development.
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Affiliation(s)
- Franz Steppeler
- Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50 370 Wrocław, Poland; (F.S.); (D.I.)
| | - Dominika Iwan
- Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50 370 Wrocław, Poland; (F.S.); (D.I.)
| | - Elżbieta Wojaczyńska
- Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50 370 Wrocław, Poland; (F.S.); (D.I.)
| | - Jacek Wojaczyński
- Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie St., 50 383 Wrocław, Poland;
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29
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Ngoc Toan D, Thanh ND, Truong MX, Nghia Bang D, Thanh Nga M, Thi Thu Huong N. Synthesis, cytotoxic activity, ADMET and molecular docking study of quinoline-based hybrid compounds of 1,5-benzothiazepines. NEW J CHEM 2020. [DOI: 10.1039/d0nj04295a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Some α,β-unsaturated ketones 4a–g of 3-acetyl-4-hydroxyquinolin-2(1H)-one were prepared and converted into a series of new hybrid compounds, quinoline-benzothiazepine 6a–g. Compounds 6d and 6g had the best activity against HepG2 and KB cell lines.
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Affiliation(s)
- Duong Ngoc Toan
- Faculty of Chemistry
- TNU University of Education (Thai Nguyen University)
- Vietnam
- Faculty of Chemistry
- VNU University of Science (Vietnam National University, Ha Noi)
| | - Nguyen Dinh Thanh
- Faculty of Chemistry
- VNU University of Science (Vietnam National University, Ha Noi)
- Ha Noi
- Vietnam
| | - Mai Xuan Truong
- Faculty of Chemistry
- TNU University of Education (Thai Nguyen University)
- Vietnam
| | - Duong Nghia Bang
- Faculty of Chemistry
- TNU University of Science (Thai Nguyen University)
- Tan Thinh Ward
- Thai Nguyen City
- Vietnam
| | - Mai Thanh Nga
- Faculty of Chemistry
- TNU University of Education (Thai Nguyen University)
- Vietnam
| | - Nguyen Thi Thu Huong
- Faculty of Chemistry
- VNU University of Science (Vietnam National University, Ha Noi)
- Ha Noi
- Vietnam
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30
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Boraei ATA, Ghabbour HA, Gomaa MS, El Ashry ESH, Barakat A. Synthesis and Anti-Proliferative Assessment of Triazolo-Thiadiazepine and Triazolo-Thiadiazine Scaffolds. Molecules 2019; 24:molecules24244471. [PMID: 31817609 PMCID: PMC6943432 DOI: 10.3390/molecules24244471] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 11/29/2019] [Accepted: 12/04/2019] [Indexed: 11/16/2022] Open
Abstract
A series of triazolo-thiadiazepines 4a–k were synthesized with excellent yields using dehydrated PTSA as a catalyst in toluene. Two triazolo-thiadiazines were obtained; 8a was formed directly by reflux in ethanol, whereas, PTSA promoted the formation of 8b. The molecular structure of the formed triazolo-thiadiazepines is identical to the imine-form 4a–k and not the enamine-tautomer 6a–k. The structures of the newly synthesized triazolo-thiadiazepines 4a–k and triazolo-thiadiazines 8a–b were elucidated using NMR (1H, and 13C), 2D NMR, HRMS, and X-ray single crystal. Furthermore, 4a was deduced using X-ray single crystal diffraction analysis. These new thiadiazepine hits represent an optimized series of previously synthesized indole-triazole derivatives for the inhibition of EGFR. The cytotoxicity activity against two cancer cell lines including human liver cancer (HEPG-2) and breast cancer (MCF-7) was promising, with IC50 between 12.9 to 44.6 µg/mL and 14.7 to 48.7 µg/mL for the tested cancer cell lines respectively, compared to doxorubicin (IC50 4.0 µg/mL). Docking studies revealed that the thiadiazepine scaffold presented a suitable anchor, allowing good interaction of the various binding groups with the enzyme binding regions and sub-pockets.
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Affiliation(s)
- Ahmed T. A. Boraei
- Chemistry Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
- Correspondence: (A.T.A.B); (A.B.); Tel.: +966-11467-5901 (A.B.); Fax: +966-11467-5992 (A.B.)
| | - Hazem A. Ghabbour
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt;
| | - Mohamed S. Gomaa
- Pharmaceutical Chemistry Department, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam 32241, Saudi Arabia;
| | - El Sayed H. El Ashry
- Chemistry Department, Faculty of Science, Alexandria University, P.O. Box 426, Ibrahimia, Alexandria 21321, Egypt;
| | - Assem Barakat
- Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
- Correspondence: (A.T.A.B); (A.B.); Tel.: +966-11467-5901 (A.B.); Fax: +966-11467-5992 (A.B.)
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Vairoletti F, Medeiros A, Fontán P, Meléndrez J, Tabárez C, Salinas G, Franco J, Comini MA, Saldaña J, Jancik V, Mahler G, Saiz C. Synthesis of bicyclic 1,4-thiazepines as novel anti- Trypanosoma brucei brucei agents. MEDCHEMCOMM 2019; 10:1481-1487. [PMID: 31673311 DOI: 10.1039/c9md00064j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 06/09/2019] [Indexed: 11/21/2022]
Abstract
1,4-Thiazepines derivatives are pharmacologically important heterocycles with different applications in medicinal chemistry. In the present work, we describe the preparation of new bicyclic thiazolidinyl-1,4-thiazepines 3 by reaction between azadithiane compounds and Michael acceptors. The reaction scope was explored and the yields were optimized. The activity of the new compounds was evaluated against Nippostrongylus brasiliensis and Caenorhabditis elegans as anthelmintic models and Trypanosoma brucei brucei. The most active compound was 3l, showing an EC50 = 2.8 ± 0.7 μM against T. b. brucei and a selectivity index >71.
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Affiliation(s)
- Franco Vairoletti
- Laboratorio de Química Farmacéutica , Departamento de Química Orgánica , Facultad de Química , Universidad de la República , Montevideo , Uruguay . ;
| | - Andrea Medeiros
- Group Redox Biology of Trypanosomes , Institut Pasteur de Montevideo , Montevideo , Uruguay.,Departamento de Bioquímica , Facultad de Medicina , Universidad de la República , Montevideo , Uruguay
| | - Pablo Fontán
- Laboratorio de Química Farmacéutica , Departamento de Química Orgánica , Facultad de Química , Universidad de la República , Montevideo , Uruguay . ;
| | - Jennifer Meléndrez
- Laboratorio de Química Farmacéutica , Departamento de Química Orgánica , Facultad de Química , Universidad de la República , Montevideo , Uruguay . ;
| | - Carlos Tabárez
- Laboratorio de Química Farmacéutica , Departamento de Química Orgánica , Facultad de Química , Universidad de la República , Montevideo , Uruguay . ;
| | - Gustavo Salinas
- Worm Biology Laboratory , Unidad Mixta Institut Pasteur de Montevideo-Facultad de Química , UdelaR , Montevideo , Uruguay
| | - Jaime Franco
- Group Redox Biology of Trypanosomes , Institut Pasteur de Montevideo , Montevideo , Uruguay
| | - Marcelo A Comini
- Group Redox Biology of Trypanosomes , Institut Pasteur de Montevideo , Montevideo , Uruguay
| | - Jenny Saldaña
- Laboratorio de Experimentación Animal , Depto de Ciencias Farmacéuticas , Facultad de Química , Universidad de la República , Montevideo , Uruguay
| | - Vojtech Jancik
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM , Toluca , Mexico
| | - Graciela Mahler
- Laboratorio de Química Farmacéutica , Departamento de Química Orgánica , Facultad de Química , Universidad de la República , Montevideo , Uruguay . ;
| | - Cecilia Saiz
- Laboratorio de Química Farmacéutica , Departamento de Química Orgánica , Facultad de Química , Universidad de la República , Montevideo , Uruguay . ;
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32
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Synthesis of CC, CN coupled novel substituted dibutyl benzothiazepinone derivatives and evaluation of their thrombin inhibitory activity. Bioorg Chem 2019; 87:142-154. [PMID: 30884308 DOI: 10.1016/j.bioorg.2019.03.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 01/31/2019] [Accepted: 03/02/2019] [Indexed: 12/21/2022]
Abstract
The formation of a thrombus is a key event in thromboembolic disorders, that contribute to high mortality and morbidity in affected patients. In the present study, we synthesized a library of novel substituted 3,3-dibutyl-8-methoxy-2,3-dihydrobenzo [b] [1,4] thiazepin-4(5H)-one derivatives which were tested for their platelet aggregation and thrombin inhibitory activity. Among the tested compounds, 3,3-dibutyl-7-(2-chlorophenyl)-8-methoxy-2,3-dihydrobenzo[b] [1,4]thiazepin-4(5H)-one (DCT) displayed the maximum thrombin inhibition with an IC50 value of 3.85 μM and thus DCT was chosen for further studies. Next, the effect of DCT on primary hemostasis was evaluated using agonist-induced platelet aggregation model. The lead compound inhibited the collagen- or ADP- or thrombin-induced platelet aggregation in a dose-dependent manner. Furthermore, DCT prolonged the process of clot formation when evaluating plasma re-calcification time (320 ± 11 sec at 5 µg DCT), activated partial thromboplastin time (58.0 ± 0.01 sec at 2 µg), and prothrombin time (14.7 ± 0.01 sec at 5 µg). Molecular docking studies suggested that the benzothiazepinones evaluated here consistently display hydrogen bonding with Ser214 of thrombin, which is similar to that of the co-crystallized ligand (1-(2R)-2-amino-3-phenyl-propanoyl-N-(2,5dichlorophenyl)methylpyrrolidine-2-carboxamide). DCT displayed additional hydrogen bonding to Ser195 and π-π interactions between its methoxyphenyl groups and Trp60, thereby providing a structural rationale for the observed biological effect.
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33
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Guo WS, Gong H, Zhang YA, Wen LR, Li M. Fast Construction of 1,3-Benzothiazepines by Direct Intramolecular Dehydrogenative C–S Bond Formation of Thioamides under Metal-Free Conditions. Org Lett 2018; 20:6394-6397. [DOI: 10.1021/acs.orglett.8b02697] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Wei-Si Guo
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Hao Gong
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Yan-An Zhang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
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34
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Meninno S, Quaratesi I, Volpe C, Mazzanti A, Lattanzi A. Catalytic enantioselective one-pot approach to cis- and trans-2,3-diaryl substituted 1,5-benzothiazepines. Org Biomol Chem 2018; 16:6923-6934. [PMID: 30226256 DOI: 10.1039/c8ob01988f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first enantioselective catalytic approach to cis- and trans-2,3-diaryl substituted 1,5-benzothiazepines has been conveniently developed in a one-pot fashion, starting from α,β-unsaturated acyl pyrazoles and 2-aminothiophenol. The organocatalytic two-step sulfa-Michael/lactamization sequence is promoted by a readily available bifunctional thiourea and p-toluenesulfonic acid, respectively. The protocol enables access to both N-unprotected cis- and trans-diastereoisomers in moderate to satisfactory overall yields (up to 84%) and good to excellent ee values (up to 99%). Mechanistic investigations helped to shed light on the regio- and stereoselective outcome of the process.
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Affiliation(s)
- Sara Meninno
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno, Via Giovanni Paolo II 132, I-84084, Fisciano, Italy.
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35
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Affiliation(s)
- Keisuke Asano
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto 615-8510, Japan
| | - Seijiro Matsubara
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto 615-8510, Japan
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36
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Zhang X, Liu X, Zhang J, Zhang D, Lin L, Feng X. Enantioselective [3 + 2] cycloaddition and rearrangement of thiazolium salts to synthesize thiazole and 1,4-thiazine derivatives. Org Chem Front 2018. [DOI: 10.1039/c8qo00370j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A highly efficient catalytic asymmetric [3 + 2] cycloaddition/rearrangement cascade of thiazolium N-ylides with various electron-deficient 2-π components was achieved, providing a convenient method to access hydropyrrolo-thiazole and hydropyrrolo-thiazine derivatives.
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Affiliation(s)
- Xiying Zhang
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Jianlin Zhang
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Dong Zhang
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
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37
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Fukata Y, Yao K, Miyaji R, Asano K, Matsubara S. Asymmetric Net Cycloaddition for Access to Diverse Substituted 1,5-Benzothiazepines. J Org Chem 2017; 82:12655-12668. [DOI: 10.1021/acs.joc.7b02451] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yukihiro Fukata
- Department of Material Chemistry, Graduate
School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto 615-8510, Japan
| | - Koichi Yao
- Department of Material Chemistry, Graduate
School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto 615-8510, Japan
| | - Ryota Miyaji
- Department of Material Chemistry, Graduate
School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto 615-8510, Japan
| | - Keisuke Asano
- Department of Material Chemistry, Graduate
School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto 615-8510, Japan
| | - Seijiro Matsubara
- Department of Material Chemistry, Graduate
School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto 615-8510, Japan
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38
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Wen J, Cheng H, Raabe G, Bolm C. Rhodium-Catalyzed [4 + 3] Annulations of Sulfoximines with α,β-Unsaturated Ketones Leading to 1,2-Benzothiazepine 1-Oxides. Org Lett 2017; 19:6020-6023. [DOI: 10.1021/acs.orglett.7b03106] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Jian Wen
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Hanchao Cheng
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Gerhard Raabe
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
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39
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Mor S, Nagoria S, Sindhu S, Khatri M, Sidhu G, Singh V. Synthesis of Indane-Based 1,5-Benzothiazepines Derived from 3-Phenyl-2,3-dihydro-1H
-inden-1-one and Antimicrobial Studies Thereof. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2948] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Satbir Mor
- Department of Chemistry; Guru Jambheshwar University of Science & Technology; Hisar 125001 Haryana India
| | - Savita Nagoria
- Department of Chemistry; Guru Jambheshwar University of Science & Technology; Hisar 125001 Haryana India
| | - Suchita Sindhu
- Department of Chemistry; Guru Jambheshwar University of Science & Technology; Hisar 125001 Haryana India
| | - Mohini Khatri
- Department of Chemistry; Guru Jambheshwar University of Science & Technology; Hisar 125001 Haryana India
| | - Gurdeep Sidhu
- Department of Chemistry; Guru Jambheshwar University of Science & Technology; Hisar 125001 Haryana India
| | - Virender Singh
- Department of Chemistry; Dr. B. R. Ambedkar National Institute of Technology (NIT); Jalandhar 144011 Punjab India
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40
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Deng ZF, Huang B, Xu H, Shi F, Wang YQ. Highly Enantioselective Synthesis of 11-Substituted 10,11-Dihydrodibenzo[b,f
][1,4]thiazepines through a Proline-Catalyzed Mannich Reaction of Seven-Membered Cyclic Imines with Ketones. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700283] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhuo-Fei Deng
- Provincial Key Laboratory of Natural Medicine and Immuno-Engineering; Henan University, Kaifeng; Henan 475004 P. R. China
| | - Bo Huang
- Provincial Key Laboratory of Natural Medicine and Immuno-Engineering; Henan University, Kaifeng; Henan 475004 P. R. China
| | - Huajing Xu
- School of Chemical and Pharmaceutical Engineering; Wuhan Institute of Technology; 693 Xiongchu Avenue, Wuhan Hubei 430073 P. R. China
| | - Feng Shi
- Provincial Key Laboratory of Natural Medicine and Immuno-Engineering; Henan University, Kaifeng; Henan 475004 P. R. China
| | - You-Qing Wang
- Provincial Key Laboratory of Natural Medicine and Immuno-Engineering; Henan University, Kaifeng; Henan 475004 P. R. China
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41
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Meninno S, Volpe C, Lattanzi A. Catalytic Enantioselective Synthesis of Protecting-Group-Free 1,5-Benzothiazepines. Chemistry 2017; 23:4547-4550. [DOI: 10.1002/chem.201700837] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Sara Meninno
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II 84084 Fisciano Italy
| | - Chiara Volpe
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II 84084 Fisciano Italy
| | - Alessandra Lattanzi
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II 84084 Fisciano Italy
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42
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Saha D, Kaur T, Sharma A. Facile Construction of Imidazo-benzothia-/oxazepines by a Quick and Efficient van Leusen Protocol. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201600531] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Debasmita Saha
- D-305, Medicinal Chemistry Lab; Department of Chemistry; Indian Institute of Technology; Roorkee 247667 India
| | - Tanpreet Kaur
- D-305, Medicinal Chemistry Lab; Department of Chemistry; Indian Institute of Technology; Roorkee 247667 India
| | - Anuj Sharma
- D-305, Medicinal Chemistry Lab; Department of Chemistry; Indian Institute of Technology; Roorkee 247667 India
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43
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Sánchez García JJ, Toledano-Magaña Y, Flores-Alamo M, Martínez-Klimova E, Galindo-Murillo R, Hernández-Ayala LF, Ortiz-Frade L, García-Ramos JC, Klimova EI. Polycyclic ferrocenyl(dihydro)thiazepine derivatives: Diastereo-selective synthesis, characterization, electrochemical behavior, theoretical and biological investigation. J Inorg Biochem 2016; 166:141-149. [PMID: 27863300 DOI: 10.1016/j.jinorgbio.2016.09.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 08/27/2016] [Accepted: 09/13/2016] [Indexed: 11/19/2022]
Abstract
The reaction of E-2-ferrocenylmethylidenetetralones and E,E-2,6-bis-(ferrocenylmethylidene)-cyclohexanone with 2-aminothiophenol proceed with high diastereoselectivity, forming the ~4.5:1 mixture of trans- and cis-isomers of polycyclic ferrocenylthiazepines, respectively. The reactions of E,E-2,5-bis-(ferrocenylmethylidene)cyclopentanone and E,E-3,5-bis-(ferrocenylmethylidene)-1-methyl-4-piperidone with 2-aminothiophenol take place stereo specifically to form the diastereomeric tricyclic thiazepines of cis- and trans-configuration, respectively. The structures of the obtained compounds were established by IR, 1H and 13C NMR spectroscopy and mass-spectrometry. The structures of the trans-tetralino[1,2a]-, trans-5,7-dimethyltetralino[1,2a]-2-ferrocenyl [1,5]benzo-2,3-dihydrothiazepines and cis-5-ferrocenyl-methylidenecyclopentano[1,2a]-2-ferrocenyl- [1,5]benzo-2,3-dihydrothiazepine were confirmed by X-ray diffraction analysis. An electrochemical study reveals that the diferrocenyl derivatives belong to a Class I compounds of the Robin-Day classification. This behavior is explained by the analysis of frontier orbitals as calculated by density functional theory, showing that only one ferrocenyl unit participates in the generation of HOMO and LUMO orbitals. Compounds 4a and 4c showed similar capacity to inhibit the proliferation of HM1: IMSS trophozoite cultures than the first choice drug for human amoebiasis treatment, metronidazole. Morphological changes induced in the trophozoites after drug exposure suggest a redox in balance as the probable mechanism of the parasite death.
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Affiliation(s)
| | | | - Marcos Flores-Alamo
- Facultad de Química, Universidad Nacional Autónoma de México, CD.MX, 04510, Mexico
| | | | | | | | - Luis Ortiz-Frade
- Departamento de Electroquímica, Centro de Investigación y Desarrollo Tecnológico en Electroquímica, S.C., Querétaro, 76703, Mexico
| | - Juan C García-Ramos
- Departamento de Fisicoquímica, Instituto de Química, Universidad Nacional Autónoma de México, CD. MX, 04510, Mexico.
| | - Elena I Klimova
- Facultad de Química, Universidad Nacional Autónoma de México, CD.MX, 04510, Mexico.
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44
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Saha D, Kaur T, Sharma A. Silver-Catalyzed Cross-Dehydrogenative Coupling (CDC) Strategy for the Construction of Dialkyl/Dibenzyl Dibenzo[b,f][1,4]thia-/oxazepin-11-yl Phosphonates. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600283] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Debasmita Saha
- D-305, Medicinal Chemistry Lab; Department of Chemistry; Indian Institute of Technology Roorkee; Roorkee 247667 India
| | - Tanpreet Kaur
- D-305, Medicinal Chemistry Lab; Department of Chemistry; Indian Institute of Technology Roorkee; Roorkee 247667 India
| | - Anuj Sharma
- D-305, Medicinal Chemistry Lab; Department of Chemistry; Indian Institute of Technology Roorkee; Roorkee 247667 India
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45
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Meyer AG, Smith JA, Hyland C, Williams CC, Bissember AC, Nicholls TP. Seven-Membered Rings. PROGRESS IN HETEROCYCLIC CHEMISTRY 2016. [DOI: 10.1016/b978-0-08-100755-6.00016-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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46
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Pedras MSC, To QH. Unveiling the first indole-fused thiazepine: structure, synthesis and biosynthesis of cyclonasturlexin, a remarkable cruciferous phytoalexin. Chem Commun (Camb) 2016; 52:5880-3. [DOI: 10.1039/c6cc02108e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The structure, synthesis, biosynthesis and antifungal activity of cyclonasturlexin, the most intriguing indolyl phytoalexin isolated from watercress plants, are reported.
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Affiliation(s)
- M. S. C. Pedras
- Department of Chemistry
- University of Saskatchewan
- Saskatoon SK S7N 5C9
- Canada
| | - Q. H. To
- Department of Chemistry
- University of Saskatchewan
- Saskatoon SK S7N 5C9
- Canada
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