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Mohammed ER, Abd-El-Fatah AH, Mohamed AR, Mahrouse MA, Mohammad MA. Discovery of new 2-(3-(naphthalen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)thiazole derivatives with potential analgesic and anti-inflammatory activities: In vitro, in vivo and in silico investigations. Bioorg Chem 2024; 147:107372. [PMID: 38653152 DOI: 10.1016/j.bioorg.2024.107372] [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: 03/15/2024] [Revised: 04/05/2024] [Accepted: 04/12/2024] [Indexed: 04/25/2024]
Abstract
Joining the global demand for the discovery of potent NSAIDs with minimized ulcerogenic effect, new pyrazole clubbed thiazole derivatives 5a-o were designed and synthesized. The new derivatives were initially evaluated for their analgesic activity. Eight compounds 5a, 5c, 5d, 5e, 5f, 5h, 5m, and 5o showed higher activity than Indomethacin (potency = 105-130 % vs. 100 %). Subsequently, they were picked for further evaluation of their anti-inflammatory activity, ulcerogenic liability as well as toxicological studies. Derivatives 5h and 5m showed a potential % edema inhibition after 3 h (79.39 % and 72.12 %, respectively), with a promising safety profile and low ulcer indices (3.80 and 3.20, respectively). The two compounds 5h and 5m were subjected to in vitro COX-1 and COX-2 inhibition assay. The candidate 5h showed nearly equipotent COX-1 inhibition (IC50 = 38.76 nM) compared to the non-selective reference drug Indomethacin (IC50 = 35.72 nM). Compound 5m expressed significant inhibitory activities and a higher COX-2 selectivity index (IC50 = 87.74 nM, SI = 2.05) in comparison with Indomethacin (SI = 0.52), with less selectivity than Celecoxib (SI = 8.31). Simulation docking studies were carried out to gain insights into the binding interaction of compounds 5h and 5m in the vicinity of COX-1 and COX-2 enzymes that illustrated the importance of pyrazole clubbed thiazole core in hydrogen bonding interactions. The thiazole motif of compounds 5h and 5m exhibited a well orientation toward COX-1 Arg120 key residue by hydrogen bonding interactions. Compound 5h revealed an additional arene-cation interaction with Arg120 that could rationalize its superior COX-1 inhibitory activity. Compounds 5h and 5m overlaid the co-crystallized ligand Celecoxib I differently in the active site of COX-2. Compound 5m showed an enhanced accommodation with binding energy of - 6.13 vs. - 1.70 kcal/mol of compounds 5h. The naphthalene ring of compound 5m adopted the Celecoxib I benzene sulfonamide region that is stabilized by hydrogen-arene interactions with the hydrophobic sidechains of the key residues Ser339 and Phe504. Further, the core structure of compound 5m, pyrazole clubbed thiazole, revealed deeper hydrophobic interactions with Ala513, Leu517 and Val509 residues. Finally, a sensitive and accurate UPLC-MS/MS method was developed for the simultaneous estimation of some selected promising pyrazole derivatives in rat plasma. Accordingly, compounds 5h and 5m were suggested to be promising potent analgesic and anti-inflammatory agents with improved safety profiles and a novel COX isozyme modulation activity.
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Affiliation(s)
- Eman R Mohammed
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt.
| | - Aliaa H Abd-El-Fatah
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Abdalla R Mohamed
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Egyptian Russian University, Badr City, Cairo 11829, Egypt.
| | - Marianne A Mahrouse
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Mohammad A Mohammad
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
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Bednarczyk-Cwynar B, Ruszkowski P. Acylation of Oleanolic Acid Oximes Effectively Improves Cytotoxic Activity in In Vitro Studies. Pharmaceutics 2024; 16:86. [PMID: 38258097 PMCID: PMC10819243 DOI: 10.3390/pharmaceutics16010086] [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: 11/22/2023] [Revised: 12/22/2023] [Accepted: 12/30/2023] [Indexed: 01/24/2024] Open
Abstract
(1) Background: The aim of the presented work was to obtain a set of oleanolic acid derivatives with a high level of anticancer activity and a low level of toxicity by applying an economic method. Three types of oleanolic acid derivatives were obtained: (i) derivatives of methyl oleanonate oxime, (ii) derivatives of methyl oleanonate oxime with an additional 11-oxo function, and (iii) derivatives of morpholide of oleanonic acid oxime. (2) Methods: The above oximes were acylated with aliphatic or aromatic carboxylic acid. The newly obtained compounds were subjected to ADMETox analysis and were also tested for cytotoxicity activity on the HeLa, KB, MCF-7, A-549, and HDF cell lines with the MTT assay. (3) Results: Among the tested acylated oximes of oleanolic acid, some derivatives, particularly those with two nitro groups attached to the aromatic ring, proved to be the most potent cytotoxic agents. These triterpene derivatives significantly inhibited the growth of the HeLa, KB, MCF-7, and A-549 cancer cell lines in micromolar concentrations. (4) Conclusions: The introduction of different moieties, particularly the 3,5-dinitro group, resulted in the synthesis of highly potent cytotoxic agents with favorable SI and ADMETox parameters.
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Affiliation(s)
- Barbara Bednarczyk-Cwynar
- Department of Organic Chemistry, Faculty of Pharmacy, Poznan University of Medical Sciences, Collegium Pharmaceuticum 2 (CP.2), Rokietnicka Str. 3, 60-806 Poznan, Poland
- Center of Innovative Pharmaceutical Technology (CITF), Rokietnicka Str. 3, 60-806 Poznan, Poland
| | - Piotr Ruszkowski
- Department of Pharmacology, Faculty of Pharmacy, Poznan University of Medical Sciences, Collegium Pharmaceuticum 1, (CP.1), Rokietnicka Str. 3, 60-806 Poznan, Poland;
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Dincel ED, Akdağ Ç, Kayra T, Coşar ED, Aksoy MO, Akalın-Çiftçi G, Ulusoy-Güzeldemirci N. Design, synthesis, characterization, molecular docking studies and anticancer activity evaluation of novel hydrazinecarbothioamide, 1,2,4-triazole-3-thione, 4-thiazolidinone and 1,3,4-oxadiazole derivatives. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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Szczepański J, Tuszewska H, Trotsko N. Anticancer Profile of Rhodanines: Structure-Activity Relationship (SAR) and Molecular Targets-A Review. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123750. [PMID: 35744873 PMCID: PMC9231410 DOI: 10.3390/molecules27123750] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 06/06/2022] [Accepted: 06/07/2022] [Indexed: 11/16/2022]
Abstract
The rhodanine core is a well-known privileged heterocycle in medicinal chemistry. The rhodanines, as subtypes of thiazolidin-4-ones, show a broad spectrum of biological activity, including anticancer properties. This review aims to analyze the anticancer features of the rhodanines described over the last decade in the scientific literature. The structure–activity relationship of rhodanine derivatives, as well as some of the molecular targets, were discussed. The information contained in this review could be of benefit to the design of new, effective small molecules with anticancer potential among rhodanine derivatives or their related heterocycles.
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Kraft O, Hartmann AK, Hoenke S, Serbian I, Csuk R. Madecassic Acid—A New Scaffold for Highly Cytotoxic Agents. Int J Mol Sci 2022; 23:ijms23084362. [PMID: 35457180 PMCID: PMC9026082 DOI: 10.3390/ijms23084362] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/10/2022] [Accepted: 04/13/2022] [Indexed: 01/27/2023] Open
Abstract
Due to their manifold biological activities, natural products such as triterpenoids have advanced to represent excellent leading structures for the development of new drugs. For this reason, we focused on the syntheses and cytotoxic evaluation of derivatives obtained from gypsogenin, hederagenin, and madecassic acid, cytotoxicity increased—by and large—from the parent compounds to their acetates. Another increase in cytotoxicity was observed for the acetylated amides (phenyl, benzyl, piperazinyl, and homopiperazinyl), but a superior cytotoxicity was observed for the corresponding rhodamine B conjugates derived from the (homo)-piperazinyl amides. In particular, a madecassic acid homopiperazinyl rhodamine B conjugate 24 held excellent cytotoxicity and selectivity for several human tumor cell lines. Thus, this compound was more than 10,000 times more cytotoxic than parent madecassic acid for A2780 ovarian cancer cells. We assume that the presence of an additional hydroxyl group at position C–6 in derivatives of madecassic, as well as the (2α, 3β) configuration of the acetates in ring A, had a beneficial effect onto the cytotoxicity of the conjugates, as well as onto tumor/non-tumor cell selectivity.
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Tilekar K, Shelke O, Upadhyay N, Lavecchia A, Ramaa CS. Current status and future prospects of molecular hybrids with thiazolidinedione (TZD) scaffold in anticancer drug discovery. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131767] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Multivariate assessment of anticancer oleanane triterpenoids lipophilicity. J Chromatogr A 2021; 1656:462552. [PMID: 34571283 DOI: 10.1016/j.chroma.2021.462552] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 09/09/2021] [Accepted: 09/10/2021] [Indexed: 12/24/2022]
Abstract
Naturally occurring molecules are excellent sources of lead compounds. A series of oleanolic acid (OA) derivatives previously synthesized in our laboratory, which show promising antitumor activity, have been analyzed in terms of lipophilicity evaluation applying chromatographic and computational approaches. Retention data obtained on three reversed-phase liquid chromatography stationary phases (RP-HPLC) and immobilized artificial membrane chromatography (IAM-HPLC) were compared with computational methods using chemometric tools such as cluster analysis, principal component analysis and sum of ranking differences. To investigate the molecular mechanism of retention quantitive structure retention relationship analysis was performed, based on the genetic algorithm coupled with multiple linear regression (GA-MLR). The obtained results suggested that the ionization potential of studied molecules significantly affects their retention in classical RP-HPLC. In IAM-HPLC additionally, polarizability-related descriptors also play an essential role in that process. The lipophilicity indices comparison shows significant differences between the computational lipophilicity and chromatographically determined ones.
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Laxmikeshav K, Kumari P, Shankaraiah N. Expedition of sulfur-containing heterocyclic derivatives as cytotoxic agents in medicinal chemistry: A decade update. Med Res Rev 2021; 42:513-575. [PMID: 34453452 DOI: 10.1002/med.21852] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 04/20/2021] [Accepted: 08/17/2021] [Indexed: 12/13/2022]
Abstract
This review article proposes a comprehensive report of the design strategies engaged in the development of various sulfur-bearing cytotoxic agents. The outcomes of various studies depict that the sulfur heterocyclic framework is a fundamental structure in diverse synthetic analogs representing a myriad scope of therapeutic activities. A number of five-, six- and seven-membered sulfur-containing heterocyclic scaffolds, such as thiazoles, thiadiazoles, thiazolidinediones, thiophenes, thiopyrans, benzothiazoles, benzothiophenes, thienopyrimidines, simple and modified phenothiazines, and thiazepines have been discussed. The subsequent studies of the derivatives unveiled their cytotoxic effects through multiple mechanisms (viz. inhibition of tyrosine kinases, topoisomerase I and II, tubulin, COX, DNA synthesis, and PI3K/Akt and Raf/MEK/ERK signaling pathways), and several others. Thus, our concise illustration explains the design strategy and anticancer potential of these five- and six-membered sulfur-containing heterocyclic molecules along with a brief outline on seven-membered sulfur heterocycles. The thorough assessment of antiproliferative activities with the reference drug allows a proficient assessment of the structure-activity relationships (SARs) of the diversely synthesized molecules of the series.
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Affiliation(s)
- Kritika Laxmikeshav
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
| | - Pooja Kumari
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
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Narożna M, Krajka-Kuźniak V, Bednarczyk-Cwynar B, Kucińska M, Kleszcz R, Kujawski J, Piotrowska-Kempisty H, Plewiński A, Murias M, Baer-Dubowska W. Conjugation of Diclofenac with Novel Oleanolic Acid Derivatives Modulate Nrf2 and NF-κB Activity in Hepatic Cancer Cells and Normal Hepatocytes Leading to Enhancement of Its Therapeutic and Chemopreventive Potential. Pharmaceuticals (Basel) 2021; 14:ph14070688. [PMID: 34358114 PMCID: PMC8308582 DOI: 10.3390/ph14070688] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/07/2021] [Accepted: 07/14/2021] [Indexed: 12/13/2022] Open
Abstract
Combining NSAIDs with conventional therapeutics was recently explored as a new strategy in cancer therapy. Our earlier studies showed that novel oleanolic acid oximes (OAO) conjugated with aspirin or indomethacin may enhance their anti-cancer potential through modulation of the Nrf2 and NF-κB signaling pathways. This study focused on the synthesis and biological evaluation of four diclofenac (DCL)–OAO derivative conjugates in the context of these pathways’ modification and hepatic cells survival. Treatment with the conjugates 4d, 3-diclofenacoxyiminoolean-12-en-28-oic acid morpholide, and 4c, 3-diclofenacoxyiminoolean-12-en-28-oic acid benzyl ester significantly reduced cell viability in comparison to the DCL alone. In THLE-2, immortalized normal hepatocytes treated with these conjugates resulted in the activation of Nrf2 and increased expression in SOD-1 and NQO1, while the opposite effect was observed in the HepG2 hepatoma cells. In both cell lines, reduced activation of the NF-κB and COX-2 expression was observed. In HepG2 cells, conjugates increased ROS production resulting from a reduced antioxidant defense, induced apoptosis, and inhibited cell proliferation. In addition, the OAO morpholide derivative and its DCL hybrid reduced the tumor volume in mice bearing xenografts. In conclusion, our study demonstrated that conjugating diclofenac with the OAO morpholide and a benzyl ester might enhance its anti-cancer activity in HCC.
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Affiliation(s)
- Maria Narożna
- Department of Pharmaceutical Biochemistry, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (M.N.); (V.K.-K.); (R.K.)
| | - Violetta Krajka-Kuźniak
- Department of Pharmaceutical Biochemistry, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (M.N.); (V.K.-K.); (R.K.)
| | - Barbara Bednarczyk-Cwynar
- Department of Organic Chemistry, Poznan University of Medical Sciences, 60-780 Poznan, Poland; (B.B.-C.); (J.K.)
| | - Małgorzata Kucińska
- Department of Toxicology, Poznan University of Medical Sciences, 60-631 Poznan, Poland; (M.K.); (H.P.-K.); (M.M.)
| | - Robert Kleszcz
- Department of Pharmaceutical Biochemistry, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (M.N.); (V.K.-K.); (R.K.)
| | - Jacek Kujawski
- Department of Organic Chemistry, Poznan University of Medical Sciences, 60-780 Poznan, Poland; (B.B.-C.); (J.K.)
| | - Hanna Piotrowska-Kempisty
- Department of Toxicology, Poznan University of Medical Sciences, 60-631 Poznan, Poland; (M.K.); (H.P.-K.); (M.M.)
| | - Adam Plewiński
- Centre for Advanced Technologies, Adam Mickiewicz University, 61-614 Poznan, Poland;
| | - Marek Murias
- Department of Toxicology, Poznan University of Medical Sciences, 60-631 Poznan, Poland; (M.K.); (H.P.-K.); (M.M.)
| | - Wanda Baer-Dubowska
- Department of Pharmaceutical Biochemistry, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (M.N.); (V.K.-K.); (R.K.)
- Correspondence: ; Tel.: +48-61-854-6625; Fax: +48-61-854-6620
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Negi M, Chawla P, Faruk A, Chawla V. Role of 4-Thiazolidinone Scaffold in Targeting Variable Biomarkers and Pathways Involving Cancer. Anticancer Agents Med Chem 2021; 22:1458-1477. [PMID: 34229596 DOI: 10.2174/1871520621666210706104227] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 04/20/2021] [Accepted: 04/26/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Cancer can be considered as a genetic as well as a metabolic disorder. Current cancer treatment scenario looks like aggravating tumor cell metabolism, causing the disease to progress even with greater intensity. The cancer therapy is restricted to limitations of poor patient compliance due to toxicities to normal tissues and multi-drug resistance development. There is an emerging need for cancer therapy to be more focused on the better understanding of genetic, epigenetic and transcriptional changes resulting in cancer progression and their relationship with treatment sensitivity. OBJECTIVE The 4-thiazolidinone nucleus possesses marked anticancer potential towards different biotargets, thus targeting different cancer types like breast, prostate, lung, colorectal and colon cancers, renal cell adenocarcinomas and gliomas. Therefore, conjugating the 4-thiazolidinone scaffold with other promising moieties or by directing the therapy towards targeted drug delivery systems like the use of nanocarrier systems, can provide the gateway for optimizing the anticancer efficiency and minimizing the adverse effects and drug resistance development, thus providing stimulus for personalized pharmacotherapy. METHODS An exhaustive literature survey has been carried out to give an insight into the anticancer potential of the 4-thiazolidinone nucleus either alone or in conjugation with other active moieties, with the mechanisms involved in preventing proliferation and metastasis of cancer covering a vast range of publications of repute. CONCLUSION This review aims to summarise the work reported on anticancer activity of 4-thiazolidinone derivatives covering various cancer biomarkers and pathways involved, citing the data from 2005 till now, which may be beneficial to the researchers for future development of more efficient 4-thiazolidinone derivatives.
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Affiliation(s)
- Meenakshi Negi
- Department of Pharmaceutical Sciences, HNB Garhwal University, Srinagar Garhwal, Uttarakhand, India
| | - Pooja Chawla
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Moga, India
| | - Abdul Faruk
- Department of Pharmaceutical Sciences, HNB Garhwal University, Srinagar Garhwal, Uttarakhand, India
| | - Viney Chawla
- University Institute of Pharmaceutical Sciences and Research, BFUHS University, Faridkot, India
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Chaudhary AP, Shukla AK, Kant P. Design, synthesis, antibacterial evaluation, molecular docking and computational study of 4-alkoxy/aryloxyphenyl cyclopropyl methane oxime derivatives. Comput Biol Chem 2021; 91:107434. [PMID: 33514494 DOI: 10.1016/j.compbiolchem.2021.107434] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 10/03/2020] [Accepted: 12/31/2020] [Indexed: 10/22/2022]
Abstract
A series of new 4-alkoxy/aryloxyphenyl cyclopropyl methane oxime derivatives 2(a-k) were synthesized and fully characterized by FT-IR, 1H-NMR, 13C-NMR and Mass spectrometry techniques. All the synthesized compounds 2(a-k) were assayed for in vitro antibacterial activity against a selected bacterial strain and the compound (2 h) and (2k) exerted excellent activity against Staphylococcus aureus, Escherichia coli and Salmonella typhi strains. The potency of inhibitors and possible interaction mechanism of synthetic oxime (2k) with 1GQN enzyme on Salmonella typhi was explored by molecular docking method. Amongst the all synthesized compounds, the quantum chemical calculations were done for Cyclopropyl(4-(pyridin-3-ylmethoxy)phenyl)methanone oxime (2k). The first hyperpolarizability calculation performed in different solvent such as CHCl3, CH2Cl2 and DMSO and compared to the reference compound urea. In addition, natural bond orbital analysis (NBO), local reactivity descriptors, thermodynamic properties, Mulliken charges, molecular electrostatic potential (MEP), frontier molecular orbitals (FMO) analysis were explored using theoretical calculations.
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Affiliation(s)
- Aniruddh Prasad Chaudhary
- Department of Chemistry, Udai Pratap College, Varanasi, 221002, India; Department of Chemistry, University of Lucknow, Lucknow, 226007, India.
| | - Akhilesh Kumar Shukla
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, 226025, UP, India
| | - Padam Kant
- Department of Chemistry, University of Lucknow, Lucknow, 226007, India
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Narożna M, Krajka-Kuźniak V, Bednarczyk-Cwynar B, Kleszcz R, Baer-Dubowska W. The Effect of Novel Oleanolic Acid Oximes Conjugated with Indomethacin on the Nrf2-ARE And NF-κB Signaling Pathways in Normal Hepatocytes and Human Hepatocellular Cancer Cells. Pharmaceuticals (Basel) 2020; 14:ph14010032. [PMID: 33396453 PMCID: PMC7824409 DOI: 10.3390/ph14010032] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 12/25/2020] [Accepted: 12/28/2020] [Indexed: 02/07/2023] Open
Abstract
Nrf2 and NF-κB play a key role in inflammation-driven cancers. Conjugation of anti-inflammatory drugs with oleanolic acid oxime (OAO) may enhance their therapeutic potential as a result of downregulation of these pathways. Novel OAO derivatives conjugated with indomethacin (IND) were synthesized, and their effect on the activation and expression of Nrf2 and NF-κB in HepG2 hepatoma cells and THLE-2 immortalized normal hepatocytes was evaluated in relation to cell cycle arrest and apoptosis. Treatment with OAO–IND conjugates reduced the activation of Nrf2 and NF-κB and the expression of their active forms in HepG2 cells, while in normal hepatocytes, the activation of Nrf2 was increased and NF-κB diminished. Compounds 3d, 3-indomethacinoxyiminoolean-12-en-28-oic acid morpholide, and 3c, 3-indomethacinoxyiminoolean-12-en-28-oic acid benzyl ester, were the most efficient. In THLE-2 cells, as opposed to HepG2 cells, the expressions of SOD-1 and NQO1 were significantly enhanced after treatment with these compounds. The COX-2 expression was diminished in both cell lines. OAO–IND derivatives affected the cell cycle arrest at G2/M, leading to increased apoptosis and increased number of resting HepG2 cells. Therefore, the conjugation of IND with OAO derivatives may preserve cancer cells against chemoresistance through the inhibition of the Nrf2-ARE pathway and NF-κB and, at the same time, exert a chemopreventive effect in normal hepatocytes.
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Affiliation(s)
- Maria Narożna
- Department of Pharmaceutical Biochemistry, Poznan University of Medical Sciences, 4, Święcicki Street, 60-781 Poznań, Poland; (M.N.); (V.K.-K.); (R.K.)
| | - Violetta Krajka-Kuźniak
- Department of Pharmaceutical Biochemistry, Poznan University of Medical Sciences, 4, Święcicki Street, 60-781 Poznań, Poland; (M.N.); (V.K.-K.); (R.K.)
| | - Barbara Bednarczyk-Cwynar
- Department of Organic Chemistry, Poznan University of Medical Sciences, 6, Grunwaldzka Street, 60-780 Poznań, Poland;
| | - Robert Kleszcz
- Department of Pharmaceutical Biochemistry, Poznan University of Medical Sciences, 4, Święcicki Street, 60-781 Poznań, Poland; (M.N.); (V.K.-K.); (R.K.)
| | - Wanda Baer-Dubowska
- Department of Pharmaceutical Biochemistry, Poznan University of Medical Sciences, 4, Święcicki Street, 60-781 Poznań, Poland; (M.N.); (V.K.-K.); (R.K.)
- Correspondence: ; Tel.: +48-61-854-66-25; Fax: +48-61-854-66-20
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Jain S, Jain PK, Sain S, Kishore D, Dwivedi J. Anticancer s-Triazine Derivatives: A Synthetic Attribute. MINI-REV ORG CHEM 2020. [DOI: 10.2174/1570193x17666200131111851] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
1, 3, 5-Triazine (s-Triazine) is a versatile nucleus to design and develop potent bioactive
molecules for drug discovery, particularly in cancer therapy. The aim of this review is to present the
most recent trends in the field of synthetic strategies made for functionalized triazine derivatives active
against cell proliferation. This review article covers the synthesis of aryl methylamino, morpholino,
triamino substituted triazines, antimitotic agents coupled triazines and many more. Many 1,3,5-
triazine derivatives, both hetero-fused and uncondensed, have shown remarkable antitumor activities.
We have highlighted various derivatives with 1, 3, 5-triazine core targeting different kinases with an
aim to help researchers for developing new 1, 3, 5-triazine derived compounds for antitumor activity.
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Affiliation(s)
- Sonika Jain
- Department of Chemistry, Banasthali Vidyapith, Banasthali-304022, India
| | - Pankaj Kumar Jain
- Department of Pharmacy, Banasthali Vidyapith, Banasthali-304022, India
| | - Shalu Sain
- Department of Chemistry, Banasthali Vidyapith, Banasthali-304022, India
| | - Dharma Kishore
- Department of Chemistry, Banasthali Vidyapith, Banasthali-304022, India
| | - Jaya Dwivedi
- Department of Chemistry, Banasthali Vidyapith, Banasthali-304022, India
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Li Z, Huang B, Wang Y, Yuan W, Wu Y, Yu R, Xing G, Zou T, Tao Y. Design, synthesis and application in biological imaging of a novel red fluorescent dye based on a rhodanine derivative. RSC Adv 2020; 11:160-163. [PMID: 35423009 PMCID: PMC8690906 DOI: 10.1039/d0ra08998b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 12/10/2020] [Indexed: 01/23/2023] Open
Abstract
A novel acceptor–donor–acceptor type molecule, namely 2-triphenylamine-1,3-dia[2-(3-ethyl-4-oxo-thiazolidin-2-ylidene)-malononitrile] (2RDNTPA), is designed and synthesized. 2RDNTPA exhibits a large Stokes shift of 244 nm and red fluorescence emission of 629 nm with a decent photoluminescence quantum yield of 13%. Furthermore, as a potential red fluorescent dye, 2RDNTPA can be applied in fluorescence imaging of living cancer cells (HepG2) with negligible cytotoxicity and a half maximal inhibitory concentration much more than 100 μM. 2RDNTPA can be applied in fluorescence imaging of living cancer cells (HepG2) with red emission of 620 nm and negligible cytotoxicity with a half maximal inhibitory concentration much more than 100 μM.![]()
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Affiliation(s)
- Zijing Li
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University Nanjing P. R. China
| | - Bin Huang
- College of Life Sciences and Chemistry, Jiangsu Key Laboratory of Biofunctional Molecule, Jiangsu Second Normal University Nanjing P. R. China
| | - Yuan Wang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University Guangzhou P. R. China
| | - Wenbo Yuan
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University Nanjing P. R. China
| | - Yijing Wu
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University Nanjing P. R. China
| | - Ruitao Yu
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University Nanjing P. R. China
| | - Guichuan Xing
- Institute of Applied Physics and Materials Engineering, University of Macau Macao SAR 999078 China
| | - Taotao Zou
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University Guangzhou P. R. China
| | - Youtian Tao
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University Nanjing P. R. China
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15
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Ghoneim AA, El-Farargy AF, Bakr RB. Design, Synthesis, Molecular Docking of Novel Substituted Pyrimidinone Derivatives as Anticancer Agents. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1837888] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Amira Atef Ghoneim
- Chemistry Department, College of Science, Jouf University, Sakaka, Aljouf, Kingdom of Saudi Arabia
- Chemistry Department, Faculty of Science, Zagazig University, Zagazig, Egypt
| | | | - Rania B. Bakr
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka, Aljouf, Saudi Arabia
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
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16
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Dincel ED, Ulusoy‐Güzeldemirci N, Şatana D, Küçükbasmacı Ö. Design, synthesis, characterization and antimicrobial evaluation of some novel hydrazinecarbothioamide, 4‐thiazolidinone and 1,2,4‐triazole‐3‐thione derivatives. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4159] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Efe Doğukan Dincel
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy İstanbul University İstanbul Turkey
| | | | - Dilek Şatana
- Department of Microbiology, İstanbul Faculty of Medicine İstanbul University İstanbul Turkey
| | - Ömer Küçükbasmacı
- Department of Microbiology, Cerrahpaşa Faculty of Medicine İstanbul University Cerrahpaşa İstanbul Turkey
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17
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Activation of the Nrf2 response by oleanolic acid oxime morpholide (3-hydroxyiminoolean-12-en-28-oic acid morpholide) is associated with its ability to induce apoptosis and inhibit proliferation in HepG2 hepatoma cells. Eur J Pharmacol 2020; 883:173307. [PMID: 32668287 DOI: 10.1016/j.ejphar.2020.173307] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/19/2020] [Accepted: 06/22/2020] [Indexed: 01/06/2023]
Abstract
Our previous study demonstrated that new oleanolic acid oxime (OAO) derivatives and their conjugates with aspirin (ASP) inhibit NF-κB activation. Evidence exists that the downregulation of NF-κB negatively interferes with the Nrf2 signaling pathway. This study aimed to evaluate the effect of these compounds on Nrf2 activation and its cellular consequences in human hepatoma HepG2 cells and immortalized normal hepatocytes THLE-2. The results showed the enhanced activation and expression of Nrf2 as a result of treatment with OAO derivatives themselves and to less extent by their ASP conjugates, mainly in HepG2 cells. The association between cytotoxicity evaluated in our previous study and Nrf2 activation was observed. In this regard, compounds (18) with morpholide substituent at the C-17 position of OAO molecule and (12) with methyl ester substituent at the same position of OAO molecule to the most extent activated Nrf2 and subsequently cell cycle arrest at G2/M, leading to increased apoptosis and the number of resting HepG2 cells. The derivative of OAO (18) substituted with ASP (19) also affected Nrf2 activation and expression, but this effect was less pronounced in comparison with non-conjugated OAO. However, conjugation enhanced Nrf2 activation in normal THLE-2 cells. These results confirmed our earlier suggestion that OAO derivatives conjugated with ASP have the potential for application in the liver cancer chemoprevention. OAO themselves, particularly OAO substituted with morpholide, may be considered therapeutic agents, which may support conventional treatment strategy. Further studies are required to confirm this suggestion.
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18
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Berger M, Knittl-Frank C, Bauer S, Winter G, Maulide N. Application of Relay C−H Oxidation Logic to Polyhydroxylated Oleanane Triterpenoids. Chem 2020. [DOI: 10.1016/j.chempr.2020.04.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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19
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Synthesis and anti-leukemic activity of pyrrolidinedione-thiazolidinone hybrids. UKRAINIAN BIOCHEMICAL JOURNAL 2020. [DOI: 10.15407/ubj92.02.108] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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20
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Tejchman W, Korona-Glowniak I, Kwietniewski L, Żesławska E, Nitek W, Suder P, Żylewski M, Malm A. Antibacterial properties of 5-substituted derivatives of rhodanine-3-carboxyalkyl acids. Part II. Saudi Pharm J 2020; 28:414-426. [PMID: 32273800 PMCID: PMC7132836 DOI: 10.1016/j.jsps.2020.02.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Accepted: 02/08/2020] [Indexed: 11/15/2022] Open
Abstract
Two series of rhodanine-3-acetic and rhodanine-3-propionic acids derivatives having benzylidene and cinnamylidene substituents with additional electron donating and withdrawing groups at the C-5 position, were synthesised. The structures of the obtained derivatives were confirmed by spectroscopic methods and their lipophilicity was screened. The crystal structures were determined for selected compounds. The antibacterial activity of the derivatives was depended on the type of carboxyalkyl group in the N-3 position and on the type of the substituent in the C-5 position. The derivatives of rhodanine-3-propionic acid demonstrated the highest activity against Gram-positive bacteria. However, none of tested derivatives showed activity against Gram-negative bacteria and yeast. We believe that the presence of the N,N-diethylamine group in the aromatic system and the number of carbon atoms in the carboxyalkyl group is more significant for the biological activity than the fact that the benzylidene or cinnamylidene substituent was present at the C-5 position.
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Affiliation(s)
- Waldemar Tejchman
- Department of Chemistry, Institute of Biology, Pedagogical University of Cracow, Podchorazych 2, 30-084 Kraków, Poland
| | - Izabela Korona-Glowniak
- Department of Pharmaceutical Microbiology, Medical University of Lublin, Chodzki 1, 20-093 Lublin, Poland
| | - Ludomir Kwietniewski
- Institute of Biotechnology, John Paul II Catholic University of Lublin, Konstantynów 1, Lublin 20-708, Poland
| | - Ewa Żesławska
- Department of Chemistry, Institute of Biology, Pedagogical University of Cracow, Podchorazych 2, 30-084 Kraków, Poland
| | - Wojciech Nitek
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Piotr Suder
- Department of Biochemistry and Neurobiology, AGH University of Science and Technology, Mickiewicza 30, 30-059 Kraków, Poland.,Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, Mickiewicza 30, 30-059 Kraków, Poland
| | - Marek Żylewski
- Jagiellonian Center of Innovation, NMR Laboratory, Bobrzyńskiego 14, 30-348 Kraków, Poland
| | - Anna Malm
- Department of Pharmaceutical Microbiology, Medical University of Lublin, Chodzki 1, 20-093 Lublin, Poland
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21
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Krajka-Kuźniak V, Bednarczyk-Cwynar B, Paluszczak J, Szaefer H, Narożna M, Zaprutko L, Baer-Dubowska W. Oleanolic acid oxime derivatives and their conjugates with aspirin modulate the NF-κB-mediated transcription in HepG2 hepatoma cells. Bioorg Chem 2019; 93:103326. [PMID: 31586705 DOI: 10.1016/j.bioorg.2019.103326] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 09/26/2019] [Accepted: 09/26/2019] [Indexed: 12/11/2022]
Abstract
The aim of this study was to evaluate the effect of new oleanolic acid oxime (OAO) derivatives and their conjugates with aspirin (ASP) on the expression and activation of NF-κB in human hepatoma HepG2 cells. OAO derivatives showed a stronger cytotoxic effect against HepG2 cells compared with their conjugates with aspirin. Moreover, conjugation of OAO with ASP led to enhanced downregulation of NF-κB expression and activation. Among the hybrids with ASP, compounds: 19, 3-(2-acetoxy)benzoyloxyiminoolean-12-en-28-oic acid morpholide and 13, 3-(2-acetoxy)benzoyloxyiminoolean-12-en-28-oic acid methyl ester, differing, respectively, in morpholide and methyl ester groups at the C-17 position of oleanolic acid (OA) molecule were the most efficient. COX-2 transcript and protein levels were also diminished after treatment with these compounds. The results of this study indicate that the new derivatives of OAO and particularly their conjugates with ASP, downregulate the expression of COX-2 in HepG2 cells by modulating the NF-κB signaling pathway and suggest their potential application in the prevention of liver inflammation and cancer.
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Affiliation(s)
- Violetta Krajka-Kuźniak
- Department of Pharmaceutical Biochemistry, Poznan University of Medical Sciences, Święcickiego 4, 60-781 Poznan, Poland
| | - Barbara Bednarczyk-Cwynar
- Department of Organic Chemistry Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Jarosław Paluszczak
- Department of Pharmaceutical Biochemistry, Poznan University of Medical Sciences, Święcickiego 4, 60-781 Poznan, Poland
| | - Hanna Szaefer
- Department of Pharmaceutical Biochemistry, Poznan University of Medical Sciences, Święcickiego 4, 60-781 Poznan, Poland
| | - Maria Narożna
- Department of Pharmaceutical Biochemistry, Poznan University of Medical Sciences, Święcickiego 4, 60-781 Poznan, Poland
| | - Lucjusz Zaprutko
- Department of Organic Chemistry Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Wanda Baer-Dubowska
- Department of Pharmaceutical Biochemistry, Poznan University of Medical Sciences, Święcickiego 4, 60-781 Poznan, Poland.
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22
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Kryshchyshyn A, Kaminskyy D, Karpenko O, Gzella A, Grellier P, Lesyk R. Thiazolidinone/thiazole based hybrids - New class of antitrypanosomal agents. Eur J Med Chem 2019; 174:292-308. [PMID: 31051403 DOI: 10.1016/j.ejmech.2019.04.052] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 04/17/2019] [Accepted: 04/17/2019] [Indexed: 12/22/2022]
Abstract
Different compounds have been investigated as potent drugs for trypanosomiasis treatment, but no new drug has been marketed in the past 3 decades. 4-Thiazolidinone/thiazole as privileged structures and thiosemicarbazides cyclic analogs are well known scaffolds in novel antitrypanosomal agent design. We present here the design and synthesis of new hybrid molecules bearing thiazolidinone/thiazole cores linked by the hydrazone group with various molecular fragments. Structure optimization led to compounds with phenyl-indole or phenyl-imidazo[2,1-b][1,3,4]thiadiazole moieties showing excellent antitrypanosomal activity towards Trypanosoma brucei brucei and Trypanosoma brucei gambiense. Biological study allowed identifying compounds with the submicromolar levels of IC50, good selectivity indexes and relatively low cytotoxicity upon human primary fibroblasts as well as low acute toxicity.
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Affiliation(s)
- Anna Kryshchyshyn
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, Lviv, 79010, Ukraine
| | - Danylo Kaminskyy
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, Lviv, 79010, Ukraine
| | | | - Andrzej Gzella
- Department of Organic Chemistry, Poznan University of Medical Sciences, Grunwaldzka 6, Poznan, 60-780, Poland
| | - Philippe Grellier
- National Museum of Natural History, UMR 7245 CNRS-MNHN, Team BAMEE, CP 52, 57 Rue Cuvier, 75005, Paris, France
| | - Roman Lesyk
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, Lviv, 79010, Ukraine; Department of Public Health, Dietetics and Lifestyle Disorders, Faculty of Medicine, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland.
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23
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Metwally NH, Badawy MA, Okpy DS. Green synthesis of some new thiopyrano[2,3-d][1,3]thiazoles using lemon juice and their antibacterial activity. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2018.1495234] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
| | | | - Doha Samir Okpy
- Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt
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24
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Enhancing anticancer activity through the combination of bioreducing agents and triterpenes. Future Med Chem 2018; 10:511-525. [PMID: 29424550 DOI: 10.4155/fmc-2017-0154] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
AIM Triterpenes are natural compounds, whose wide biological activity predestines them for application as promising new chemotherapeutics. In this paper, we report the results of our investigations into the substitution of oleanolic acid with aromatic and nitroaromatic moieties acting as bioreducing agents. RESULTS The process of reduction of nitro groups was investigated through cyclic voltammetry, UV-Vis and electron paramagnetic resonance spectroelectrochemistry. The cytotoxic activity against selected cancer cell lines was determined, showing a significant increase in cytotoxicity when the triterpene is equipped with a nitroaromatic moiety. CONCLUSION We believe this approach to the functionalization is promising in terms of enhancing anticancer activity. We also indicate electrochemical techniques as advantageous preclinical screening methods for the identification of cytotoxic agents.
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25
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El-Wakil MH, Ashour HM, Saudi MN, Hassan AM, Labouta IM. Design, synthesis and molecular modeling studies of new series of antitumor 1,2,4-triazines with potential c-Met kinase inhibitory activity. Bioorg Chem 2017; 76:154-165. [PMID: 29175587 DOI: 10.1016/j.bioorg.2017.11.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 10/29/2017] [Accepted: 11/15/2017] [Indexed: 12/20/2022]
Abstract
The receptor tyrosine kinase c-Met is an attractive target for therapeutic treatment of cancers nowadays. Herein we describe the design and synthesis of a novel series of 1,2,4-triazine derivatives based on our lead NCI 748494/1, possessing different N-linkers to aromatic and heterocyclic rings. In addition, a molecular hybrid series combining the 1,2,4-triazine scaffold to the well-known anticancer drug 6-mercaptopurine (6-MP) was synthesized in order to explore its "double-drug" antitumor effect. The synthesized compounds were evaluated for their in vitro antitumor activity against three c-Met addicted cancer cell lines (A549, HT-29 and MKN-45). Most compounds showed moderate to excellent antitumor activity. Compound 3d showed potent inhibitory activity more than reference Foretinib, BMS-777607 and NCI 748494/1 with IC50 values in the range 0.01-0.31 µM against the cancer cell lines. The calculated IC50 of 3d against c-Met kinase was found to be 2.71 µM, which is more potent than NCI 748494/1 (IC50 = 31.70 µM). Docking studies were performed to identify the binding mode of 3d with c-Met kinase domain in comparison to moderate and weak derivatives. The present study clearly demonstrates that 1,2,4-triazine ring exhibits promising antitumor activity and the double-drug optimization strategy led to identifying 3d as a potent c-Met kinase inhibitor suitable for further development.
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Affiliation(s)
- Marwa H El-Wakil
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt.
| | - Hayam M Ashour
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
| | - Manal N Saudi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
| | - Ahmed M Hassan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
| | - Ibrahim M Labouta
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
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26
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Kaminskyy D, Kryshchyshyn A, Lesyk R. 5-Ene-4-thiazolidinones - An efficient tool in medicinal chemistry. Eur J Med Chem 2017; 140:542-594. [PMID: 28987611 PMCID: PMC7111298 DOI: 10.1016/j.ejmech.2017.09.031] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Revised: 07/14/2017] [Accepted: 09/17/2017] [Indexed: 02/02/2023]
Abstract
The presented review is an attempt to summarize a huge volume of data on 5-ene-4-thiazolidinones being a widely studied class of small molecules used in modern organic and medicinal chemistry. The manuscript covers approaches to the synthesis of 5-ene-4-thiazolidinone derivatives: modification of the C5 position of the basic core; synthesis of the target compounds in the one-pot or multistage reactions or transformation of other related heterocycles. The most prominent pharmacological profiles of 5-ene derivatives of different 4-thiazolidinone subtypes belonging to hit-, lead-compounds, drug-candidates and drugs as well as the most studied targets have been discussed. Currently target compounds (especially 5-en-rhodanines) are assigned as frequent hitters or pan-assay interference compounds (PAINS) within high-throughput screening campaigns. Nevertheless, the crucial impact of the presence/nature of C5 substituent (namely 5-ene) on the pharmacological effects of 5-ene-4-thiazolidinones was confirmed by the numerous listed findings from the original articles. The main directions for active 5-ene-4-thiazolidinones optimization have been shown: i) complication of the fragment in the C5 position; ii) introduction of the substituents in the N3 position (especially fragments with carboxylic group or its derivatives); iii) annealing in complex heterocyclic systems; iv) combination with other pharmacologically attractive fragments within hybrid pharmacophore approach. Moreover, the utilization of 5-ene-4-thiazolidinones in the synthesis of complex compounds with potent pharmacological application is described. The chemical transformations cover mainly the reactions which involve the exocyclic double bond in C5 position of the main core and correspond to the abovementioned direction of the 5-ene-4-thiazolidinone modification.
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Affiliation(s)
- Danylo Kaminskyy
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, Lviv-10, 79010, Ukraine
| | - Anna Kryshchyshyn
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, Lviv-10, 79010, Ukraine
| | - Roman Lesyk
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, Lviv-10, 79010, Ukraine.
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27
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Kryshchyshyn AP, Atamanyuk DV, Kaminskyy DV, Grellier P, Lesyk RB. Investigation of anticancer and anti-parasitic activity of thiopyrano[2,3-d]thiazoles bearing norbornane moiety. ACTA ACUST UNITED AC 2017. [DOI: 10.7124/bc.00094f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
| | | | | | - Ph. Grellier
- National Museum of Natural History, UMR 7245 CNRS MCAM, Sorbonne UniversitГ©s
| | - R. B. Lesyk
- Danylo Halytsky Lviv National Medical University
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28
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A synthetic approach and molecular docking study of hybrids of quinazolin-4-ones and thiazolidin-4-ones as anticancer agents. Med Chem Res 2017. [DOI: 10.1007/s00044-017-1857-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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29
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Dar AM, Uzzaman S, Ahmad MS, Khan Y. Steroidal imidazoles: Synthesis, characterization, molecular docking studies with DNA and in vitro cytotoxicity. Med Chem Res 2016. [DOI: 10.1007/s00044-016-1755-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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30
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Boraei ATA, Gomaa MS, El Ashry ESH, Duerkop A. Design, selective alkylation and X-ray crystal structure determination of dihydro-indolyl-1,2,4-triazole-3-thione and its 3-benzylsulfanyl analogue as potent anticancer agents. Eur J Med Chem 2016; 125:360-371. [PMID: 27688190 DOI: 10.1016/j.ejmech.2016.09.046] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 09/05/2016] [Accepted: 09/14/2016] [Indexed: 11/20/2022]
Abstract
Three sets of substituted indolyl-triazoles were synthesized by the alkylation of 1,2-dihydro-5-(1H-indol-2-yl)-1,2,4-triazole-3-thione with different alkyl halides. The use of pyridine restricted the alkylation to sulfur. Whereas, upon using K2CO3, the alkylation exceeded sulfur to one of the remaining triazole nitrogens. The assignment of which nitrogen is alkylated besides sulfur is made for the first time using X-ray analysis of single crystals and 2D NMR which indicated that S-, 2-N-isomers will be preferably formed over the S-, 1-N-isomers. The antiproliferative activity on HEPG-2 and MCF-7 cancer cell lines was tested. The results showed that compound 2a is the most active with an IC50 3.58 μg/mL and 4.53 μg/mL for HEPG-2 and MCF-7 respectively and compound 7 is the least active with an IC50 > 100 μg/mL compared to the standard drug doxorubicin (IC50 4.0 μg/mL). The interaction of the synthesized compounds with tyrosine kinases, namely, Akt, PI3, and EGFR was also studied using molecular docking simulation to predict their mode of action which will drive future work directions.
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Affiliation(s)
- Ahmed T A Boraei
- Chemistry Department, Faculty of Science, Suez Canal University, Ismailia, Egypt.
| | - Mohamed S Gomaa
- Medicinal Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - El Sayed H El Ashry
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Axel Duerkop
- Institute of Analytical Chemistry, Chemo and Biosensors, Universitätsstrasse 31, 93053 Regensburg, Germany
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31
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Bednarczyk-Cwynar B, Wiȩcaszek T, Ruszkowski P. Cytotoxic Activity of Some Lupeol Derivatives. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100910] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The synthesis of 3- O-acyl derivatives of lupeol is presented, as well as lupenone and the oxime of lupenone. The obtained derivatives were subjected to the MTT test in order to evaluate their cytotoxic activity toward HeLa, KB, MCF-7 and A-549 cell lines in comparison with lupeol (1). The IC50 values for lupeol (1) and all of the tested derivatives (2–6) were from about 7–10 μM for lupenone (5) to about 81 μM for o-phthaloyl-lupeol (4). Acylation of the C-3 hydroxy function of compound 1 decreased the cytotoxic activity of compounds 2–4. The most active anticancer agent was lupenone (5), with IC50 values 7.1–9.1 μM in comparison with 37.7–51.9 μM for lupeol (1).
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Affiliation(s)
- Barbara Bednarczyk-Cwynar
- Department of Organic Chemistry, Faculty of Pharmacy, Poznan University of Medical Sciences, Grunwaldzka Str. 6, 60–780 Poznan, Poland
| | - Tomasz Wiȩcaszek
- ZPH “Natchem”, s.c., Krowoderskich Zuchów Str. 3/33, 31-271 Cracow, Poland
| | - Piotr Ruszkowski
- Department of Pharmacology, Faculty of Pharmacy, Poznan University of Medical Sciences, Rokietnicka Str. 5, 60–806 Poznan, Poland
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32
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Bednarczyk-Cwynar B, Wachowiak N, Szulc M, Kamińska E, Bogacz A, Bartkowiak-Wieczorek J, Zaprutko L, Mikolajczak PL. Strong and Long-Lasting Antinociceptive and Anti-inflammatory Conjugate of Naturally Occurring Oleanolic Acid and Aspirin. Front Pharmacol 2016; 7:202. [PMID: 27462270 PMCID: PMC4940421 DOI: 10.3389/fphar.2016.00202] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Accepted: 06/24/2016] [Indexed: 12/12/2022] Open
Abstract
The conjugate 8 was obtained as a result of condensation of 3-hydroxyiminooleanolic acid morfolide (7) and aspirin in dioxane. Analgesic effect of OAO-ASA (8) for the range of doses 0.3–300.0 mg/kg (p.o.) was performed in mice using a hot-plate test. Anti-inflammatory activity was assessed on carrageenan-induced paw edema in rats for the same range of doses. The conjugate OAO-ASA (8) did not significantly change locomotor activity of mice, therefore sedative properties of the compound should be excluded. The compound 8 proved a simple, proportional, dose-dependent analgesic action and expressed strong anti-inflammatory activity showing a reversed U-shaped, dose-dependent relation with its maximum at 30.0 mg/kg. After its combined administration with morphine (MF, 5.0 mg/kg, s.c.) the lowering of antinociceptive activity was found; however, the interaction with naloxone (NL, 3.0 mg/kg, s.c.) did not affect the antinociceptive effect of OAO-ASA (8), therefore its opioid mechanism of action should be rather excluded. After combined administration with acetylsalicylic acid (ASA, 300.0 mg/kg, p.o.) in hot-plate test, the examined compound 8 enhanced the antinociceptive activity in significant way. It also shows that rather the whole molecule is responsible for the antinociceptive and anti-inflammatory effect of the tested compound 8, however, it cannot be excluded that the summarizing effect is produced by ASA released from the compound 8 and the rest of triterpene derivative. The occurrence of tolerance for triterpenic derivative 8 was not observed, since the analgesic and anti-inflammatory effects after chronic administration of the conjugate OAO-ASA (8) was on the same level as after its single treatment. It seemed that the anti-inflammatory mechanism of action of OAO-ASA (8) is not simple, even its chronic administration lowered both blood concentration of IL-6 and mRNA IL-6 expression. However, the effects of the conjugate OAO-ASA (8) on TNF-α level and mRNA expression were opposite. Moreover, compound 8 did not change unequivocally mRNA TLR1, and TLR3 expression. Concluding, the obtained results regarding the antinociceptive and anti-inflammatory activity of new conjugate of oleanolic acid oxime and acetylsalicylic acid (OAO-ASA 8) are very interesting, but for explanation of its mechanism of action, more detailed studies are necessary.
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Affiliation(s)
- Barbara Bednarczyk-Cwynar
- Department of Organic Chemistry, Faculty of Pharmacy, Poznan University of Medical Sciences Poznan, Poland
| | - Natalia Wachowiak
- Department of Pharmacology, Poznan University of Medical Sciences Poznan, Poland
| | - Michal Szulc
- Department of Pharmacology, Poznan University of Medical Sciences Poznan, Poland
| | - Ewa Kamińska
- Department of Pharmacology, Poznan University of Medical Sciences Poznan, Poland
| | - Anna Bogacz
- Laboratory of Experimental Pharmacogenetics, Department of Clinical Pharmacy and Biopharmacy, Poznan University of Medical Sciences Poznan, Poland
| | - Joanna Bartkowiak-Wieczorek
- Laboratory of Experimental Pharmacogenetics, Department of Clinical Pharmacy and Biopharmacy, Poznan University of Medical Sciences Poznan, Poland
| | - Lucjusz Zaprutko
- Department of Organic Chemistry, Faculty of Pharmacy, Poznan University of Medical Sciences Poznan, Poland
| | - Przemyslaw L Mikolajczak
- Department of Pharmacology, Poznan University of Medical SciencesPoznan, Poland; Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal PlantsPlewiska, Poland
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Senkiv J, Finiuk N, Kaminskyy D, Havrylyuk D, Wojtyra M, Kril I, Gzella A, Stoika R, Lesyk R. 5-Ene-4-thiazolidinones induce apoptosis in mammalian leukemia cells. Eur J Med Chem 2016; 117:33-46. [DOI: 10.1016/j.ejmech.2016.03.089] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 03/28/2016] [Accepted: 03/31/2016] [Indexed: 12/13/2022]
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Chopde HN, Pandhurnekar CP, Meshram JS, Pagadala R. Synthesis, Characterization, Antibacterial, and Antifungal Activity of Novel 2-(2-hydroxy-5-((aryl)-diazenyl)phenyl)-3-(4-hydroxyphenyl)-thiazolidin-4-one. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2620] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Himani N. Chopde
- Department of Chemistry; G. H. Raisoni Academy of Engineering and Technology; Nagpur Maharashtra India
| | | | - Jyotsna S. Meshram
- Department of Chemistry; Rashtrasant Tukadoji Maharaj Nagpur University; Nagpur Maharashtra India
| | - Ramakanth Pagadala
- Department of Chemistry; Rashtrasant Tukadoji Maharaj Nagpur University; Nagpur Maharashtra India
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Synthesis and evaluation of some novel N-substituted rhodanines for their anticancer activity. Med Chem Res 2016. [DOI: 10.1007/s00044-016-1545-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Dar AM, Gatoo MA, Ahmad A, Ahmad MS, Najar MH, Shamsuzzaman. DNA Interaction Studies and In Vitro Cytotoxicity of Newly Synthesized Steroidal Imidazolidinones. J Fluoresc 2015; 25:1377-87. [PMID: 26245453 DOI: 10.1007/s10895-015-1628-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Accepted: 07/26/2015] [Indexed: 10/23/2022]
Abstract
New steroidal imidazolidinone derivatives (7-9) were synthesized after reacting steroidal thiosemicarbazones with oxalyl chloride in absolute ethanol. After characterization by spectral and analytical data, the interaction studies of compounds (7-9) with DNA were carried out by UV-vis, fluorescence spectroscopy, circular dichroism, molecular docking and gel electrophoresis. The compounds bind to DNA preferentially through electrostatic and hydrophobic interactions with Kb; 2.31 × 10(4) M(-1), 2.57 × 10(4) M(-1) and 2.16 × 10(4) M(-1), respectively indicating the higher binding affinity of compound 8 towards DNA. Gel electrophoresis demonstrated that the compounds 7-9 show strong interaction during the cleavage activity with pBR322 DNA. The docking study suggested the intercalation of imidazolidinone moiety of steroid derivative in minor groove of DNA. During in vitro cytotoxicity, compounds 7-9 revealed potential toxicity against the different human cancer cells (MTT assay). Apoptotic degradation of DNA in presence of compounds 7-9 was analyzed by agarose gel electrophoresis and visualized by ethidium bromide staining (comet assay). FACS analysis shows that the compound 8 bring about cell cycle arrest at 7 μM concentration.
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Affiliation(s)
- Ayaz Mahmood Dar
- Department of Chemistry, Aligarh Muslim University, Aligarh, 202 002, India. .,Department of Chemistry, Government Degree College, Kulgam Kashmir, 192231, J&K, India.
| | - Manzoor Ahmad Gatoo
- Department of Biochemistry, Jawaharlal Nehru Medical College Aligarh Muslim University, Aligarh, 202 002, India
| | - Ajaz Ahmad
- Department of Biochemistry, Aligarh Muslim University, Aligarh, 202 002, India
| | - Mir Shabeer Ahmad
- Department of Chemistry, Government Degree College, Kulgam Kashmir, 192231, J&K, India
| | | | - Shamsuzzaman
- Department of Chemistry, Aligarh Muslim University, Aligarh, 202 002, India
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In vitro cytotoxcity and interaction of new steroidal oxadiazinanones with calf thymus DNA using molecular docking, gel electrophoresis and spectroscopic techniques. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 148:340-350. [DOI: 10.1016/j.jphotobiol.2015.04.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 04/21/2015] [Accepted: 04/27/2015] [Indexed: 11/23/2022]
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Metwally NH, Badawy MA, Okpy DS. Synthesis and Anticancer Activity of Some New Thiopyrano[2,3- d]thiazoles Incorporating Pyrazole Moiety. Chem Pharm Bull (Tokyo) 2015; 63:495-503. [DOI: 10.1248/cpb.c14-00885] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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39
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Ludwig B, Geib D, Haas C, Steingroewer J, Bley T, Muffler K, Ulber R. Whole-cell biotransformation of oleanolic acid by free and immobilized cells ofNocardia iowensis: Characterization of new metabolites. Eng Life Sci 2014. [DOI: 10.1002/elsc.201400121] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Benjamin Ludwig
- Institute of Bioprocess Engineering; University of Kaiserslautern; Kaiserslautern Germany
| | - Doris Geib
- Institute of Bioprocess Engineering; University of Kaiserslautern; Kaiserslautern Germany
| | - Christiane Haas
- Institute of Food Technology and Bioprocess Engineering; TU Dresden; Dresden Germany
| | - Juliane Steingroewer
- Institute of Food Technology and Bioprocess Engineering; TU Dresden; Dresden Germany
| | - Thomas Bley
- Institute of Food Technology and Bioprocess Engineering; TU Dresden; Dresden Germany
| | - Kai Muffler
- Department of Life Sciences and Engineering; University of Applied Sciences Bingen; Bingen Germany
| | - Roland Ulber
- Institute of Bioprocess Engineering; University of Kaiserslautern; Kaiserslautern Germany
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Patel AB, Chikhalia KH, Kumari P. An efficient synthesis of new thiazolidin-4-one fused s-triazines as potential antimicrobial and anticancer agents. JOURNAL OF SAUDI CHEMICAL SOCIETY 2014. [DOI: 10.1016/j.jscs.2014.02.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Patel AB, Chikhalia KH, Kumari P. Facile synthesis of benzonitrile/nicotinonitrile based s-triazines as new potential antimycobacterial agents. Eur J Med Chem 2014; 79:57-65. [PMID: 24721315 DOI: 10.1016/j.ejmech.2014.03.085] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Revised: 03/28/2014] [Accepted: 03/31/2014] [Indexed: 10/25/2022]
Abstract
A common strategy to synthesize 4/6-(4-(4-methylpiperazin-1-yl)-6-(4-(4-oxo-2-phenylthiazolidin-3-yl)phenyl)-1,3,5-triazin-2-yloxy)benzonitriles/nicotinonitriles was developed by applying an efficient palladium-catalyzed C-C Suzuki coupling. Moreover, the synthesized compounds were also tested for their in vitro antimycobacterial activity against Mycobacterium tuberculosis H37Rv using BACTEC MGIT and Lowenstein-Jensen MIC methods. Several compounds displayed profound antimycobacterial activity in combination with low toxicity towards mammalian cells. The best results were observed amongst the nicotinonitrile substituted s-triazine analogs and it could be a potential starting point to develop new lead compounds in the fight against M. tuberculosis H37Rv. The newly synthesized compounds were characterized by IR, (1)H NMR, (13)C NMR, MS and elemental analysis.
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Affiliation(s)
- Amit B Patel
- Department of Applied Chemistry, S. V. National Institute of Technology, Surat 395007, India
| | - Kishor H Chikhalia
- Department of Chemistry, School of Science, Gujarat University, Ahmedabad 380009, India.
| | - Premlata Kumari
- Department of Applied Chemistry, S. V. National Institute of Technology, Surat 395007, India.
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Isothiocoumarin-3-carboxylic acid derivatives: Synthesis, anticancer and antitrypanosomal activity evaluation. Eur J Med Chem 2014; 75:57-66. [DOI: 10.1016/j.ejmech.2014.01.028] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 01/07/2014] [Accepted: 01/14/2014] [Indexed: 11/18/2022]
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43
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Synthesis, evaluation and docking studies on steroidal pyrazolones as anticancer and antimicrobial agents. Med Chem Res 2013. [DOI: 10.1007/s00044-013-0636-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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44
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Efficient synthesis and anti-fungal activity of oleanolic acid oxime esters. Molecules 2013; 18:3615-29. [PMID: 23519202 PMCID: PMC6270060 DOI: 10.3390/molecules18033615] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 03/14/2013] [Accepted: 03/15/2013] [Indexed: 11/28/2022] Open
Abstract
In order to develop potential glucosamine-6-phosphate synthase inhibitors and anti-fungal agents, twenty five oleanolic acid oxime esters were synthesized in an efficient way. The structures of the new compounds were confirmed by MS, HRMS, 1H-NMR and 13C-NMR. Preliminary studies based on means of the Elson-Morgan method indicated that many compounds exhibited some inhibitory activity of glucosamine-6-phosphate synthase (GlmS), and the original fungicidal activities results showed that some of the compounds exhibited good fungicidal activities towards Sclerotinia sclerotiorum (Lib.) de Bary, Rhizoctonia solani Kuhn and Botrytis cinerea Pers at the concentration of 50 µg/mL. These compounds would thus merit further study and development as antifungal agents.
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