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Muthusamy S, Naveen R, Kumar MDS. Base-mediated cascade synthesis of indole diolefins: a route to spiro[cyclopentene-indole]thiones and thiepino[2,3- b]indoles. Chem Commun (Camb) 2023. [PMID: 37338080 DOI: 10.1039/d3cc01870a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
Base-mediated cascade reactions of 3-hydroxymethyl-3-propenylindole-2-thiones afforded diolefins and involved deformylation, thioenolate alkylation and the thio-Claisen rearrangement. Subsequent ring-closing metathesis reactions of the diolefins furnished 3-spiro[cyclopentene-indole]-2-thiones or thiepino[2,3-b]indoles.
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Affiliation(s)
| | - Ramasamy Naveen
- School of Chemistry, Bharathidasan University, Tiruchirappalli-620024, India.
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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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Vatankhah E, Akbarzadeh M, Jabbari A, Saadat K, Shiri A. Synthesis and Characterization of Various Novel Derivatives of Dipyrimido[4,5-b:4',5'-e][1,4]thiazepine and Their Theoretical Evaluation as 15-Lipoxygenase Inhibitor. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2021.2014536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Effat Vatankhah
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Marzieh Akbarzadeh
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Atena Jabbari
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Kayvan Saadat
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Ali Shiri
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
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Ring-closing metathesis in the synthesis of fused indole structures. ADVANCES IN HETEROCYCLIC CHEMISTRY 2022. [DOI: 10.1016/bs.aihch.2022.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Mandal T, Dash J. Ring closing metathesis for the construction of carbazole and indole-fused natural products. Org Biomol Chem 2021; 19:9797-9808. [PMID: 34747427 DOI: 10.1039/d1ob01471d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The synthesis and functionalization of carbazole ring systems have received considerable attention in organic synthesis due to their widespread occurrence in biologically active compounds. One of the classical methods for the synthesis of carbazoles involves C-C bond formation of a biaryl amine moiety by oxidizing agents. Over the last few years, various new strategies have evolved for the synthesis of carbazole ring systems. During the past two decades, ring-closing metathesis (RCM) based approaches have been efficiently employed for the synthesis of nitrogen containing heteroaromatic systems including carbazoles. Herein, we discuss the construction of carbazole ring systems using RCM and the application of RCM based methods in the preparation of other indole-fused heterocycles. The application of these methods in the synthesis of carbazole alkaloids and bioactive indole-fused natural products has been discussed to highlight the importance of RCM in total synthesis.
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Affiliation(s)
- Tirtha Mandal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India.
| | - Jyotirmayee Dash
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India.
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Kotha S, Gupta NK, Ansari S. Facile Synthetic Route to [3.n]Thiacyclophanes through Ring‐Closing Metathesis and their Structural Studies. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000697] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Sambasivarao Kotha
- Department of Chemistry Indian Institute of Technology 400 076 Bombay, Powai Mumbai India
| | - Naveen Kumar Gupta
- Department of Chemistry Indian Institute of Technology 400 076 Bombay, Powai Mumbai India
| | - Saima Ansari
- Department of Chemistry Indian Institute of Technology 400 076 Bombay, Powai Mumbai India
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Goud EY, Rao BK, Thirupahi G, Hemasri Y, Rao CP, Kumar PV, Rao YJ. Synthesis of HighlyZ-Selective Coumarin Annulated Dioxocine, Dioxacindione and Macrocycles Using Grubbs’ Second-Generation Catalyst. ChemistrySelect 2017. [DOI: 10.1002/slct.201601614] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- E. Yadaiah Goud
- Department of Chemistry; Osmania University; Hyderabad- 500 007 India
| | | | - G. Thirupahi
- Department of Chemistry; Osmania University; Hyderabad- 500 007 India
| | - Y. Hemasri
- Department of Chemistry; Nizam College; Osmania University- 500001 India
| | - Ch. Prasad Rao
- Department of Chemistry; Osmania University; Hyderabad- 500 007 India
| | - P. Vijay Kumar
- Department of Chemistry; Osmania University; Hyderabad- 500 007 India
| | - Y. Jayaprakash Rao
- Department of Chemistry; Osmania University; Hyderabad- 500 007 India
- Department of Chemistry; Telangana University; Nizamabad- 503 322 India
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