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Zahra FT, Saeed A, Ahmed A, Ismail H, Ijaz MU, Albericio F. Synthesis of amantadine clubbed N-aryl amino thiazoles as potent urease, α-amylase & α-glucosidase inhibitors, kinetic and molecular docking studies. RSC Adv 2023; 13:24988-25001. [PMID: 37614781 PMCID: PMC10442672 DOI: 10.1039/d3ra05330j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 08/15/2023] [Indexed: 08/25/2023] Open
Abstract
A series of ten novel compounds were synthesized by incorporating a 1,3 thiazole core into amantadine and their structures were validated using different analytical and spectral methods such as FTIR, EI-MS, 1H NMR, and 13C NMR. The antibacterial and enzyme inhibitory properties of these newly synthesized compounds were evaluated. Remarkably, the compounds exhibited significant antibacterial activity against Escherichia coli and Bacillus subtilis. Additionally, the in vitro inhibitory activities of the synthesized compounds, against α-amylase, α-glucosidase, and urease were investigated. Among the tested compounds, compound 6d demonstrated potent and selective inhibition of α-amylase IC50 = 97.37 ± 1.52 μM, while acarbose was used as positive control and exhibited IC50 = 5.17 ± 0.25 μM. Compound 6d and 6e exhibited prominent inhibition against α-glucosidase IC50 = 38.73 ± 0.80 μM and 41.63 ± 0.26 μM respectively. Furthermore, compound 6d inhibited urease with exceptional efficacy IC50 = 32.76 μM, while positive control thiourea showed more prominent activity having IC50 = 1.334 μM. Molecular docking studies disclosed the binding mechanism and affinity of these new inhibitors within the binding sites of various amino acids. To investigate the association between molecular structural characteristics and inhibitory actions of synthesized derivatives, preliminary structure-activity relationship (SAR) studies were performed. These findings indicated that compounds 6a, 6c, 6d and 6e are potential candidates for hit-to-lead follow-up in the drug-discovery process for treating diabetes and hyperglycemia.
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Affiliation(s)
- Fatima Tuz Zahra
- Department of Chemistry, Quaid-i-Azam University 45320 Islamabad Pakistan +92-51-9064-2241 +92-51-9064-2128
| | - Aamer Saeed
- Department of Chemistry, Quaid-i-Azam University 45320 Islamabad Pakistan +92-51-9064-2241 +92-51-9064-2128
| | - Atteeque Ahmed
- Department of Chemistry, Quaid-i-Azam University 45320 Islamabad Pakistan +92-51-9064-2241 +92-51-9064-2128
| | - Hammad Ismail
- Department of Biochemistry and Biotechnology, University of Gujrat Gujrat 50700 Pakistan
| | - Muhammad Umar Ijaz
- Department of Zoology, Wildlife and Fisheries, University of Agriculture Faisalabad 38040 Pakistan
| | - Fernando Albericio
- Peptides Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal Westville Durban 4000 South Africa
- CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, Department of Organic Chemistry, University of Barcelona 08028 Barcelona Spain
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Haroun M, Petrou A, Tratrat C, Kolokotroni A, Fesatidou M, Zagaliotis P, Gavalas A, Venugopala KN, Sreeharsha N, Nair AB, Elsewedy HS, Geronikaki A. Discovery of 5-Methylthiazole-Thiazolidinone Conjugates as Potential Anti-Inflammatory Agents: Molecular Target Identification and In Silico Studies. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238137. [PMID: 36500230 PMCID: PMC9737349 DOI: 10.3390/molecules27238137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 11/15/2022] [Accepted: 11/17/2022] [Indexed: 11/25/2022]
Abstract
A series of previously synthesized 5-benzyliden-2-(5-methylthiazole-2-ylimino)thiazoli- din-4-one were evaluated for their anti-inflammatory activity on the basis of PASS predictive outcomes. The predictive compounds were found to demonstrate moderate to good anti-inflammatory activity, and some of them displayed better activity than indomethacin used as the reference drug. Structure-activity relationships revealed that the activity of compounds depends not only on the nature of the substituent but also on its position in the benzene ring. The most active compounds were selected to investigate their possible mechanism of action. COX and LOX activity were determined and found that the title compounds were active only to COX-1 enzymes with an inhibitory effect superior to the reference drug naproxen. As for LOX inhibitory activity, the derivatives failed to show remarkable LOX inhibition. Therefore, COX-1 has been identified as the main molecular target for the anti-inflammatory activity of our compounds. The docking study against COX-1 active site revealed that the residue Arg 120 was found to be responsible for activity. In summary, the 5-thiazol-based thiazolidinone derivatives have been identified as a novel class of selective COX-1 inhibitors.
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Affiliation(s)
- Michelyne Haroun
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Correspondence: (M.H.); (A.G.); Tel.: +966-550909890 (M.H.); +30-2310-997-616 (A.G.)
| | - Anthi Petrou
- School of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Christophe Tratrat
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Aggeliki Kolokotroni
- School of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Maria Fesatidou
- School of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Panagiotis Zagaliotis
- School of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Division of Infectious Diseases, Weill Cornell Medicine, New York, NY 10065, USA
| | - Antonis Gavalas
- School of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Katharigatta N. Venugopala
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, Durban 4000, South Africa
| | - Nagaraja Sreeharsha
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Department of Pharmaceutics, Vidya Siri College of Pharmacy, Off Sarjapura Road, Bangalore 560035, India
| | - Anroop B. Nair
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Heba Sadek Elsewedy
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Dariyah, Riyadh 13713, Saudi Arabia
| | - Athina Geronikaki
- School of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Correspondence: (M.H.); (A.G.); Tel.: +966-550909890 (M.H.); +30-2310-997-616 (A.G.)
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3
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Tratrat C, Haroun M, Tsolaki E, Petrou A, Gavalas A, Geronikaki A. Thiazole-based Chalcone Derivatives as Potential Anti-inflammatory Agents: Biological Evaluation and Molecular Modelling. Curr Top Med Chem 2021; 21:257-268. [PMID: 33319674 DOI: 10.2174/1568026621999201214232458] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/13/2020] [Accepted: 11/16/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Inflammation is a multifactorial process reflecting the response of the organism to various stimuli and is associated with a number of disorders such as arthritis, asthma and psoriasis, which require long-lasting or repeated treatment. OBJECTIVE The aim of this paper is to evaluate the anti-inflammatory activity of previous synthesized thiazole-based chalcone derivatives. METHODS Chalcones were synthesized via Cliazen-Schmidt condensation1-(4-methyl-2- alkylamino)thiazol-5-yl) ethanone with a corresponding aromatic aldehyde. For the evaluation of possible anti-inflammatory activity, carrageenan mouse paw edema was used. RESULTS Eight out of thirteen tested chalcones showed anti-inflammatory activity in a range of 51- 55%. Prediction of toxicity revealed that these compounds are not toxic. CONCLUSION In general, it can be concluded that these compounds can be used for further modifications in order to develop more active and safe agents.
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Affiliation(s)
- Christophe Tratrat
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Michelyne Haroun
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Evangelia Tsolaki
- School of Chemical and Bioprocess Engineering, University College Dublin, Ireland
| | - Anthi Petrou
- Aristotle University of Thessaloniki, School of Pharmacy, Thessaloniki 54124, Greece
| | - Antonis Gavalas
- Aristotle University of Thessaloniki, School of Pharmacy, Thessaloniki 54124, Greece
| | - Athina Geronikaki
- Aristotle University of Thessaloniki, School of Pharmacy, Thessaloniki 54124, Greece
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Tratrat C. Novel Thiazole-Based Thiazolidinones as Potent Anti-infective Agents: In silico PASS and Toxicity Prediction, Synthesis, Biological Evaluation and Molecular Modelling. Comb Chem High Throughput Screen 2021; 23:126-140. [PMID: 31985370 DOI: 10.2174/1386207323666200127115238] [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: 09/24/2019] [Revised: 12/01/2019] [Accepted: 12/13/2019] [Indexed: 01/11/2023]
Abstract
AIMS AND OBJECTIVE The infectious disease treatment remains a challenging concern owing to the increasing number of pathogenic microorganisms associated with resistance to multiple drugs. A promising approach for combating microbial infection is to combine two or more known bioactive heterocyclic pharmacophores in one molecular platform. Herein, the synthesis and biological evaluation of novel thiazole-thiazolidinone hybrids as potential antimicrobial agents were dissimilated. MATERIALS AND METHODS The preparation of the substituted 5-benzylidene-2-thiazolyimino-4- thiazolidinones was achieved in three steps from 2-amino-5-methylthiazoline. All the compounds have been screened in PASS antibacterial activity prediction and in a panel of bacteria and fungi strains. Minimum inhibitory concentration and minimum bacterial concentration were both determined by microdilution assays. Molecular modeling was conducted using Accelrys Discovery Studio 4.0 client. ToxPredict (OPEN TOX) and ProTox were used to estimate the toxicity of the title compounds. RESULTS PASS prediction revealed the potentiality antibacterial property of the designed thiazolethiazolidinone hybrids. All tested compounds were found to kill and to inhibit the growth of a vast variety of bacteria and fungi, and were more potent than the commercial drugs, streptomycin, ampicillin, bifomazole and ketoconazole. Further, in silico study was carried out for prospective molecular target identification and revealed favorable interaction with the target enzymes E. coli MurB and CYP51B of Aspergillus fumigatus. Toxicity prediction revealed that none of the active compounds was found toxic. CONCLUSION Substituted 5-benzylidene-2-thiazolyimino-4-thiazolidinones, endowing remarkable antibacterial and antifungal properties, were identified as a novel class of antimicrobial agents and may find a potential therapeutic use to eradicate infectious diseases.
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Affiliation(s)
- Christophe Tratrat
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
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Haroun M, Tratrat C, Kolokotroni A, Petrou A, Geronikaki A, Ivanov M, Kostic M, Sokovic M, Carazo A, Mladěnka P, Sreeharsha N, Venugopala KN, Nair AB, Elsewedy HS. 5-Benzyliden-2-(5-methylthiazol-2-ylimino)thiazolidin-4-ones as Antimicrobial Agents. Design, Synthesis, Biological Evaluation and Molecular Docking Studies. Antibiotics (Basel) 2021; 10:antibiotics10030309. [PMID: 33802949 PMCID: PMC8002837 DOI: 10.3390/antibiotics10030309] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/03/2021] [Accepted: 03/09/2021] [Indexed: 01/05/2023] Open
Abstract
In this study, we report the design, synthesis, computational and experimental evaluation of the antimicrobial activity, as well as docking studies of new 5-methylthiazole based thiazolidinones. All compounds demonstrated antibacterial efficacy, some of which (1, 4, 10 and 13) exhibited good activity against E. coli and B. cereus. The evaluation of antibacterial activity against three resistant strains, MRSA, P. aeruginosa and E. coli, revealed that compound 12 showed the best activity, higher than reference drugs ampicillin and streptomycin, which were inactive or exhibited only bacteriostatic activity against MRSA, respectively. Ten out of fifteen compounds demonstrated higher potency than reference drugs against a resistant strain of E. coli, which appeared to be the most sensitive species to our compounds. Compounds 8, 13 and 14 applied in a concentration equal to MIC reduced P. aeruginosa biofilm formation by more than 50%. All compounds displayed antifungal activity, with compound 10 being the most active. The majority of compounds showed better activity than ketoconazole against almost all fungal strains. In order to elucidate the mechanism of antibacterial and antifungal activities, molecular docking studies on E. coli Mur B and C. albicans CYP51 and dihydrofolate reductase were performed. Docking analysis of E. coli MurB indicated a probable involvement of MurB inhibition in the antibacterial mechanism of tested compounds while docking to 14α-lanosterol demethylase (CYP51) and tetrahydrofolate reductase of Candida albicans suggested that probable involvement of inhibition of CYP51 reductase in the antifungal activity of the compounds. Potential toxicity toward human cells is also reported.
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Affiliation(s)
- Michelyne Haroun
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (C.T.); (N.S.); (K.N.V.); (A.B.N.); (H.S.E.)
- Correspondence: (M.H.); (A.G.); Tel.: +96-655-090-9890 (M.H.); +30-230-199-7616 (A.G.)
| | - Christophe Tratrat
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (C.T.); (N.S.); (K.N.V.); (A.B.N.); (H.S.E.)
| | - Aggeliki Kolokotroni
- School of Health, Department of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.K.); (A.P.)
| | - Anthi Petrou
- School of Health, Department of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.K.); (A.P.)
| | - Athina Geronikaki
- School of Health, Department of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.K.); (A.P.)
- Correspondence: (M.H.); (A.G.); Tel.: +96-655-090-9890 (M.H.); +30-230-199-7616 (A.G.)
| | - Marija Ivanov
- Mycological Laboratory, Department of Plant Physiology, Institute for Biological Research, Siniša Stanković-National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11000 Belgrade, Serbia; (M.I.); (M.K.); (M.S.)
| | - Marina Kostic
- Mycological Laboratory, Department of Plant Physiology, Institute for Biological Research, Siniša Stanković-National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11000 Belgrade, Serbia; (M.I.); (M.K.); (M.S.)
| | - Marina Sokovic
- Mycological Laboratory, Department of Plant Physiology, Institute for Biological Research, Siniša Stanković-National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11000 Belgrade, Serbia; (M.I.); (M.K.); (M.S.)
| | - Alejandro Carazo
- Department of pharmacology and toxicology, Faculty of Pharmacy, Charles University, 500 05 Hradec Králové, Czech Republic; (A.C.); (P.M.)
| | - Přemysl Mladěnka
- Department of pharmacology and toxicology, Faculty of Pharmacy, Charles University, 500 05 Hradec Králové, Czech Republic; (A.C.); (P.M.)
| | - Nagaraja Sreeharsha
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (C.T.); (N.S.); (K.N.V.); (A.B.N.); (H.S.E.)
| | - Katharigatta N. Venugopala
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (C.T.); (N.S.); (K.N.V.); (A.B.N.); (H.S.E.)
- Department of Biotechnology and Food Technology, Faculty of Applied Sciences, Durban University of Technology, Durban 4001, South Africa
| | - Anroop B. Nair
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (C.T.); (N.S.); (K.N.V.); (A.B.N.); (H.S.E.)
| | - Heba S. Elsewedy
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (C.T.); (N.S.); (K.N.V.); (A.B.N.); (H.S.E.)
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Khan FM, Abbasi MA, Aziz‐ur‐Rehman, Siddiqui SZ, Sadiq Butt AR, Raza H, Zafar A, Ali Shah SA, Shahid M, Seo S. Convergent synthesis of carbonic anhydrase inhibiting bi‐heterocyclic benzamides: Structure–activity relationship and mechanistic explorations through enzyme inhibition, kinetics, and computational studies. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Farhan M. Khan
- Department of Chemistry Government College University Lahore Pakistan
| | | | - Aziz‐ur‐Rehman
- Department of Chemistry Government College University Lahore Pakistan
| | | | | | - Hussain Raza
- College of Natural Sciences, Department of Biological Science Kongju National University Gongju South Korea
| | - Ayesha Zafar
- School of Chemical Sciences University of Auckland Auckland New Zealand
| | - Syed A. Ali Shah
- Faculty of Pharmacy and Atta‐ur‐Rahman Institute for Natural Products Discovery (AuRIns), Level 9, FF3 Universiti Teknologi MARA, Puncak Alam Campus Bandar Puncak Alam Malaysia
| | - Muhammad Shahid
- Department of Biochemistry University of Agriculture Faisalabad Pakistan
| | - Sung‐Yum Seo
- College of Natural Sciences, Department of Biological Science Kongju National University Gongju South Korea
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New Substituted 5-Benzylideno-2-Adamantylthiazol[3,2-b][1,2,4]Triazol-6(5 H)ones as Possible Anti-Inflammatory Agents. Molecules 2021; 26:molecules26030659. [PMID: 33513963 PMCID: PMC7866232 DOI: 10.3390/molecules26030659] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/21/2021] [Accepted: 01/22/2021] [Indexed: 02/08/2023] Open
Abstract
Background: Inflammation is a complex response to noxious stimuli promoted by the release of chemical mediators from the damaged cells. Metabolic products of arachidonic acid, produced by the action of cyclooxygenase and lipoxygenase, play important roles in this process. Several non-steroidal anti-inflammatory drugs act as cyclooxygenase inhibitors. However, almost all of them have undesired side effects. Methods: Prediction of the anti-inflammatory action of the compounds was performed using PASS Program. The anti-inflammatory activity was evaluated by the carrageenan paw edema test. COX and LOX inhibitory actions were tested using ovine COX-1, human recombinant COX-2 and soybean LOX-1, respectively. Docking analysis was performed using Autodock. Results: All designed derivatives had good prediction results according to PASS and were synthesized and experimentally evaluated. The compounds exhibited in vivo anti-inflammatory action with eleven being equal or better than indomethacin. Although, some of them had no or low inhibitory effect on COX-1/2 or LOX, certain compounds exhibited COX-1 inhibition much higher than naproxen and COX-2 inhibition, well explained by Docking analysis. Conclusions: A number of compounds with good anti-inflammatory action were obtained. Although, some exhibited remarkable COX inhibitory action this activity did not follow the anti-inflammatory results, indicating the implication of other mechanisms.
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Alsantali RI, Hussein EM, Obaid RJ, Morad M, Altass HM, Alharbi A, Hameed AM, Jassas R, Abourehab MA, Asghar BH, Moussa Z, Ahmed SA. Bioactive Fluorenes. Part II. Unprecedented biologically active thiazole derivatives based-2,7-dichlorofluorene as competent DHFR inhibitors: Design, synthesis, and molecular docking approaches. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.03.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
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9
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Tailoring of novel biologically active molecules based on N-substituted sulfonamides bearing thiazole moiety exhibiting unique multi-addressable biological potentials. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.03.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Raslan MA, Sayed SM. Synthesis of some new thiazolo[3,2‐
a
]pyridine,
bi‐thiazole‐thiazole
,
bi‐thiazole‐pyrazole
and
bi‐thiazole‐thiophene
derivatives. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3995] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- M. A. Raslan
- Chemistry Department, Faculty of ScienceAswan University Aswan Egypt
| | - S. M. Sayed
- Chemistry Department, Faculty of ScienceAswan University Aswan Egypt
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11
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Computer-aided prediction of biological activity spectra for organic compounds: the possibilities and limitations. Russ Chem Bull 2020. [DOI: 10.1007/s11172-019-2683-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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12
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El‐Metwaly N, Althagafi I, Katouah HA, Al‐Fahemi JH, Bawazeer TM, Khedr AM. Synthesis of novel VO (II)‐thaizole complexes; spectral, conformational characterization, MOE‐docking and genotoxicity. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5095] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Nashwa El‐Metwaly
- Department of chemistry, Faculty of Applied SciencesUmm Al‐Qura University Makkah Saudi Arabia
- Department of chemistry Faculty of ScienceMansoura University Mansoura Egypt
| | - Ismail Althagafi
- Department of chemistry, Faculty of Applied SciencesUmm Al‐Qura University Makkah Saudi Arabia
| | - Hanadi A. Katouah
- Department of chemistry, Faculty of Applied SciencesUmm Al‐Qura University Makkah Saudi Arabia
| | - Jabir H. Al‐Fahemi
- Department of chemistry, Faculty of Applied SciencesUmm Al‐Qura University Makkah Saudi Arabia
| | - Tahani M. Bawazeer
- Department of chemistry, Faculty of Applied SciencesUmm Al‐Qura University Makkah Saudi Arabia
| | - Abdalla M. Khedr
- Department of chemistry, Faculty of ScienceTanta University Tanta Egypt
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13
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Zhou S, Huang G, Chen G. Synthesis and biological activities of local anesthetics. RSC Adv 2019; 9:41173-41191. [PMID: 35540039 PMCID: PMC9076432 DOI: 10.1039/c9ra09287k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 11/27/2019] [Indexed: 01/22/2023] Open
Abstract
Local anesthetics are mainly used in stomatology, ophthalmology, gynecology and surgery to temporarily relieve pain. Local anesthetics act on nerve endings or around nerve trunks, and are combined with specific sodium ion (Na+) channel sites on the nerve membrane. They can affect the membrane potential by reducing Na+ passage through sodium ion channels, thus blocking the generation and conduction of nerve impulses, reversibly blocking the generation and conduction of sensory nerve impulses. Local anesthetics are used for convenience in local surgical operations and treatments. Herein, we mainly review the research progress on local anesthetics and discuss the important aspects of design, synthesis and biological activity of various new compounds. Local anesthetics are mainly used in stomatology, ophthalmology, gynecology and surgery to temporarily relieve pain.![]()
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Affiliation(s)
- Shiyang Zhou
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education
- College of Chemistry and Chemical Engineering
- Hainan Normal University
- Haikou 571158
- China
| | - Gangliang Huang
- Active Carbohydrate Research Institute
- Chongqing Key Laboratory of Green Synthesis and Application
- College of Chemistry
- Chongqing Normal University
- Chongqing 401331
| | - Guangying Chen
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education
- College of Chemistry and Chemical Engineering
- Hainan Normal University
- Haikou 571158
- China
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14
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Alotaibi SH, Radwan AS, Abdel-Monem YK, Makhlouf MM. Synthesis, thermal behavior and optical characterizations of thin films of a novel thiazole azo dye and its copper complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 205:364-375. [PMID: 30036804 DOI: 10.1016/j.saa.2018.07.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 07/11/2018] [Accepted: 07/13/2018] [Indexed: 06/08/2023]
Abstract
In the present paper, a novel dye of 4-methyl-5-(4-acetylphenyldiazenyl)thiazol-2-amine (L) and its corresponding copper complexes are synthesized and characterized using different techniques including elemental analysis, thermal analysis, 1H NMR, Mass, and FT-IR spectra. The thermal behavior of L and its complexes is carried out and discussed using thermogravimetric analysis, and it observed that the type of copper substituent affects the thermal decomposition of complexes. Homogenous thin films of L and its complexes are successfully grown onto quartz substrates using spin coating technique. Optical features and spectral phenomena of the thin films are studied using spectrophotometric measurements of absorbance, transmittance and reflectance. The optical constants such as refractive index, extinction coefficient, optical conductivity and energy loss functions of the thin films of L and its complexes are calculated. The refractive index curves for all films show a normal dispersion behavior in the non-absorbing region of spectra, from which the dispersion parameters can be calculated using Wemple-DiDomenico model. The type of optical transition bands shows indirect allowed. The values of the optical energy gap are calculated in the range from 2.13 to 2.33 eV, depending on the nature of Cu(II) substituent. Indeed, the present results show that the complexes as organic semiconductors acquired good characterizations better than metal free ligand (L) such as more thermal stability, reducing in the optical band gap and increasing in the absorption coefficient that refers to light harvesting capacity.
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Affiliation(s)
- S H Alotaibi
- Department of Chemistry, Turabah University College, Taif University, 21995, Saudi Arabia
| | - A S Radwan
- Department of Chemistry, Turabah University College, Taif University, 21995, Saudi Arabia
| | - Y K Abdel-Monem
- Department of Chemistry, Faculty of Science, Menoufia University, Egypt
| | - M M Makhlouf
- Department of Physics, Turabah University College, Taif University, 21995, Saudi Arabia; Department of Physics, Damietta Cancer Institute, Damietta, Egypt.
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15
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Tratrat C, Haroun M, Paparisva A, Geronikaki A, Kamoutsis C, Ćirić A, Glamočlija J, Soković M, Fotakis C, Zoumpoulakis P, Bhunia SS, Saxena AK. Design, synthesis and biological evaluation of new substituted 5-benzylideno-2-adamantylthiazol[3,2-b][1,2,4]triazol-6(5 H )ones. Pharmacophore models for antifungal activity. ARAB J CHEM 2018. [DOI: 10.1016/j.arabjc.2016.06.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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16
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Mašković JM, Hatzidimitriou A, Damjanović A, Stanojković TP, Trifunović SR, Geronikaki AA, Papagiannopoulou D. Synthesis, characterization and biological evaluation of Pd(ii), Cu(ii), Re(i) and 99mTc(i) thiazole-based complexes. MEDCHEMCOMM 2018; 9:831-842. [PMID: 30108972 DOI: 10.1039/c8md00067k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 04/11/2018] [Indexed: 11/21/2022]
Abstract
A new thiazole-containing multidentate ligand 2-((2-phenylthiazol-4-yl)methylthio)ethanamine, L, was synthesized and used to prepare new complexes of the formula PdIILCl2 (Pd-L), CuIIL2Cl2 (Cu-L) and fac-[Re/99mTcI(CO)3(L)]+ (Re/99mTc-L). The ligand L and the metal complexes were characterized spectroscopically. Furthermore, the structures of Re-L and Cu-L were elucidated by X-ray crystallography. Ligand L acts as a bidentate (Nth, S) chelator in Pd-L, as a bidentate (N, S) chelator in Cu-L and as a tridentate (Nth, S, N) chelator in Re-L. The radiotracer 99mTc-L was synthesized in high yield and characterised by HPLC comparison with the Re-L analog. The synthesized compounds were evaluated for their anti-inflammatory and cytotoxic properties. The compounds exhibited low anti-inflammatory activity with Pd-L showing the highest activity among them. The cytotoxic activity of the ligand and the complexes against several human cancer cell lines (cervical adenocarcinoma HeLa, colorectal adenocarcinoma LS-174T, lung adenocarcinoma A549, breast adenocarcinoma MDA-MB-231 and normal human lung fibroblast cell line MRC-5) was examined using the MTT assay. The complex Cu-L exhibited the highest cytotoxicity and the complex Pd-L showed the best tumor selectivity. The changes in the cell cycle phase distribution were determined by flow cytometry and it was found that ligand L shows the highest apoptotic activity. The biodistribution studies of 99mTc-L in mice showed fast tissue clearance. Of all the thiazole-containing compounds, the palladium complex appears to be more promising for future efforts.
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Affiliation(s)
- Jelena M Mašković
- Faculty of Agronomy , University of Kragujevac , Cara Dušana 34 , 32 000 Čačak , Republic of Serbia
| | - Antonios Hatzidimitriou
- Laboratory of Inorganic Chemistry , School of Chemistry , Faculty of Sciences , Aristotle University of Thessaloniki , 54124 , Thessaloniki , Greece
| | - Ana Damjanović
- Institute for Oncology and Radiology of Serbia , Pasterova 14 , 11000 Belgrade , Serbia
| | - Tatjana P Stanojković
- Institute for Oncology and Radiology of Serbia , Pasterova 14 , 11000 Belgrade , Serbia
| | - Srećko R Trifunović
- Department of Chemistry , Faculty of Science , University of Kragujevac , Radoja Domanovića 12 , 34 000 Kragujevac , Republic of Serbia
| | - Athina A Geronikaki
- Department of Pharmaceutical Chemistry , School of Pharmacy , Faculty of Health Sciences , Aristotle University of Thessaloniki , 54124 University Campus , Thessaloniki , Greece . ; ; Tel: +30 2310 998680
| | - Dionysia Papagiannopoulou
- Department of Pharmaceutical Chemistry , School of Pharmacy , Faculty of Health Sciences , Aristotle University of Thessaloniki , 54124 University Campus , Thessaloniki , Greece . ; ; Tel: +30 2310 998680
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17
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Liaras K, Fesatidou M, Geronikaki A. Thiazoles and Thiazolidinones as COX/LOX Inhibitors. Molecules 2018; 23:E685. [PMID: 29562646 PMCID: PMC6017610 DOI: 10.3390/molecules23030685] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 03/14/2018] [Accepted: 03/16/2018] [Indexed: 12/11/2022] Open
Abstract
Inflammation is a natural process that is connected to various conditions and disorders such as arthritis, psoriasis, cancer, infections, asthma, etc. Based on the fact that cyclooxygenase isoenzymes (COX-1, COX-2) are responsible for the production of prostaglandins that play an important role in inflammation, traditional treatment approaches include administration of non-steroidal anti-inflammatory drugs (NSAIDs), which act as selective or non-selective COX inhibitors. Almost all of them present a number of unwanted, often serious, side effects as a consequence of interference with the arachidonic acid cascade. In search for new drugs to avoid side effects, while maintaining high potency over inflammation, scientists turned their interest to the synthesis of dual COX/LOX inhibitors, which could provide numerous therapeutic advantages in terms of anti-inflammatory activity, improved gastric protection and safer cardiovascular profile compared to conventional NSAIDs. Τhiazole and thiazolidinone moieties can be found in numerous biologically active compounds of natural origin, as well as synthetic molecules that possess a wide range of pharmacological activities. This review focuses on the biological activity of several thiazole and thiazolidinone derivatives as COX-1/COX-2 and LOX inhibitors.
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Affiliation(s)
- Konstantinos Liaras
- Department of Pharmaceutical Chemistry, School of Pharmacy, Aristotle University, 54124 Thessaloniki, Greece.
| | - Maria Fesatidou
- Department of Pharmaceutical Chemistry, School of Pharmacy, Aristotle University, 54124 Thessaloniki, Greece.
| | - Athina Geronikaki
- Department of Pharmaceutical Chemistry, School of Pharmacy, Aristotle University, 54124 Thessaloniki, Greece.
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18
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Incerti M, Vicini P, Geronikaki A, Eleftheriou P, Tsagkadouras A, Zoumpoulakis P, Fotakis C, Ćirić A, Glamočlija J, Soković M. New N-(2-phenyl-4-oxo-1,3-thiazolidin-3-yl)-1,2-benzothiazole-3-carboxamides and acetamides as antimicrobial agents. MEDCHEMCOMM 2017; 8:2142-2154. [PMID: 30108732 DOI: 10.1039/c7md00334j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 10/09/2017] [Indexed: 11/21/2022]
Abstract
A series of 21 novel N-[2-phenyl-4-oxo-1,3-thiazolidin-3-yl]-1,2-benzothiazole-3-carboxamides/acetamides (4a-4p) as well as a series of N'-(halophenylmethylidene)-1,2-benzothiazole-3-acetohydrazides (3h-3p) have been synthesized and evaluated for their antimicrobial activity against eight bacterial and eight fungal species, among them plant, animal and human pathogens and food contaminating species. All compounds appeared to be potent and the best activity was exhibited by compound 4d with MIC in the range of 10.7-21.4 μmol mL-1 × 10-2 and MBC of 21.4-40.2 μmol mL-1 × 10-2. The best antifungal activity was observed for compounds 4p and 3h. Elucidation of the relationship between the antimicrobial activity and molecular properties of the synthesized compounds was also performed. Synthetic intermediates were also tested with several exhibiting good antimicrobial activities. Docking studies for some compounds were performed.
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Affiliation(s)
- Matteo Incerti
- Dipartimento di Scienze degli Alimenti e del Farmaco , Universita' degli Studi di Parma , Italy
| | - Paola Vicini
- Dipartimento di Scienze degli Alimenti e del Farmaco , Universita' degli Studi di Parma , Italy
| | - Athina Geronikaki
- Aristotle University , School of Pharmacy , Thessaloniki , 54124 , Greece . ; ; Tel: +30 2310 997616
| | - Phaedra Eleftheriou
- Department of Medical Laboratory Studies , School of Health and Medical Care , Alexander Technological Educational Institute of Thessaloniki , Greece
| | - Athanasios Tsagkadouras
- Department of Medical Laboratory Studies , School of Health and Medical Care , Alexander Technological Educational Institute of Thessaloniki , Greece
| | - Panagiotis Zoumpoulakis
- Institute of Biology , Medicinal Chemistry and Biotechnology , National Hellenic Research Foundation , 48 Vas. Constantinou Ave. , 11635 , Athens , Greece
| | - Charalmpos Fotakis
- Institute of Biology , Medicinal Chemistry and Biotechnology , National Hellenic Research Foundation , 48 Vas. Constantinou Ave. , 11635 , Athens , Greece
| | - Ana Ćirić
- Mycological Laboratory , Department of Plant Physiology , Institute for Biological Research , Siniša Stanković , University of Belgrade , Bulevar , Serbia
| | - Jasmina Glamočlija
- Mycological Laboratory , Department of Plant Physiology , Institute for Biological Research , Siniša Stanković , University of Belgrade , Bulevar , Serbia
| | - Marina Soković
- Mycological Laboratory , Department of Plant Physiology , Institute for Biological Research , Siniša Stanković , University of Belgrade , Bulevar , Serbia
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19
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Design and synthesis of 2,6-di(substituted phenyl)thiazolo[3,2-b]-1,2,4-triazoles as α-glucosidase and α-amylase inhibitors, co-relative Pharmacokinetics and 3D QSAR and risk analysis. Biomed Pharmacother 2017; 94:499-513. [PMID: 28780468 DOI: 10.1016/j.biopha.2017.07.139] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2017] [Revised: 07/19/2017] [Accepted: 07/27/2017] [Indexed: 02/01/2023] Open
Abstract
Ten fused heterocyclic derivatives bearing the 2,6-di(subsituted phenyl)thiazolo[3,2-b]-1,2,4-triazoles as central rings were synthesized and structures of the compounds were established by analytical and spectral data using FTIR, EI-MS, 1H NMR and 13C NMR techniques. In vitro inhibitory activities of synthesized compounds on α-amylase, α-glucosidase and α-burylcholinesterase (α-BuChE) were evaluated using a purified enzyme assays. Compound 5c demonstrated strong and selective α-amylase inhibitory activity (IC50=1.1μmol/g). 5g exhibited excellent inhibition against α-glucosidase (IC50=1.2μmol/g) when compared with acarbose (IC50=4.7μmol/g) as a positive reference. Compound 5i was found to be most potent derivative against α-BuChE with the IC50 of 1.5μmol/g which was comparable to the value obtained for (4.7μmol/g) positive control (i.e. galantamine hydrobromide). Molecular dockings of synthesized compounds into the binding sites of human pancreatic α-amylase, intestinal maltase-glucoamylase and neuronal α-butrylcholinesterase allowed to shed light on the affinity and binding mode of these novel inhibitors. Preliminary structure-activity relationship (SAR) studies were carried out to understand the relationship between molecular structural features and inhibition activities of synthesized derivatives. These data suggested that compounds 5c, 5g and 5i are promising candidates for hitto- lead follow-up in the drug-discovery process for the treatment of Alzheimer's disease and hyperinsulinamia.
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20
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Synthesis and biological evaluation of novel isoxazolines linked via piperazine to 2- benzoisothiazoles as potent apoptotic agents. Eur J Med Chem 2016; 126:218-224. [PMID: 27821324 DOI: 10.1016/j.ejmech.2016.09.094] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Revised: 07/09/2016] [Accepted: 09/28/2016] [Indexed: 11/22/2022]
Abstract
Synthesis of 3-(4-((3-Phenyl-4,5-dihydroisoxazol-5-yl)methyl)piperazin-1-yl) benzoisothiazole derivatives (5a-i), which constitute a new class of isoxazolines, has been accomplished in regio-selective manner. These derivatives have been prepared by employing the reaction between substituted aldoximes (4a-i) and 3-(4-Allylpiperazin-1-yl) benzoisothiazole in presence of chloramine-T which afforded in good yields. These compounds were screened for cytotoxic activity on tumor cells. Four among the nine synthesized compounds were found to exhibit potent cytotoxic and antineoplastic activities in comparison to tumor necrosis factor-related apoptosis inducing ligand (TRAIL) protein in mammalian cancer cells. The rest of the derivatives showed moderate activity.
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21
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Synthesis of Some Novel 2-Amino-5-arylazothiazole Disperse Dyes for Dyeing Polyester Fabrics and Their Antimicrobial Activity. Molecules 2016; 21:E122. [PMID: 26805797 PMCID: PMC6274149 DOI: 10.3390/molecules21010122] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Revised: 01/09/2016] [Accepted: 01/18/2016] [Indexed: 11/17/2022] Open
Abstract
The present work describes the synthesis of a series of four novel biologically active 2-amino-5-arylazothiazole disperse dyes containing the sulfa drug nucleus. The structures of the synthesized thiazole derivatives are confirmed using UV-spectrophotometry, infrared and nuclear magnetic resonance techniques and elemental analysis. The synthesized dyes are applied to polyester fabrics as disperse dyes and their fastness properties to washing, perspiration, rubbing, sublimation, and light are evaluated. The synthesized compounds exhibit promising biological efficiency against selected Gram-positive and Gram-negative pathogenic bacteria as well as fungi.
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22
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Gu DW, Guo XX. Synthesis of N-arylcarboxamides by the efficient transamidation of DMF and derivatives with anilines. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.10.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Synthesis of 4-thiazolidinone analogs as potent in vitro anti-urease agents. Bioorg Chem 2015; 63:123-31. [DOI: 10.1016/j.bioorg.2015.10.005] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 10/19/2015] [Accepted: 10/20/2015] [Indexed: 11/21/2022]
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24
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Pitta E, Tsolaki E, Geronikaki A, Petrović J, Glamočlija J, Soković M, Crespan E, Maga G, Bhunia SS, Saxena AK. 4-Thiazolidinone derivatives as potent antimicrobial agents: microwave-assisted synthesis, biological evaluation and docking studies. MEDCHEMCOMM 2015. [DOI: 10.1039/c4md00399c] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of ten thiazolidin-4-one derivatives was synthesized and evaluated for their antibacterial, antifungal and HIV-1 reverse transcriptase (RT) inhibitory activity.
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Affiliation(s)
- Eleni Pitta
- Department of Medicinal Chemistry
- School of Pharmacy
- Aristotle University of Thessaloniki
- Thessaloniki
- Greece
| | - Evangelia Tsolaki
- Department of Medicinal Chemistry
- School of Pharmacy
- Aristotle University of Thessaloniki
- Thessaloniki
- Greece
| | - Athina Geronikaki
- Department of Medicinal Chemistry
- School of Pharmacy
- Aristotle University of Thessaloniki
- Thessaloniki
- Greece
| | - Jovana Petrović
- Mycological Laboratory
- Department of Plant Physiology
- Institute for Biological Research Siniša Stanković
- University of Belgrade
- Belgrade
| | - Jasmina Glamočlija
- Mycological Laboratory
- Department of Plant Physiology
- Institute for Biological Research Siniša Stanković
- University of Belgrade
- Belgrade
| | - Marina Soković
- Mycological Laboratory
- Department of Plant Physiology
- Institute for Biological Research Siniša Stanković
- University of Belgrade
- Belgrade
| | | | | | - Shome S. Bhunia
- Academy of Scientific and Innovative Research
- New Delhi
- India
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
| | - Anil K. Saxena
- Academy of Scientific and Innovative Research
- New Delhi
- India
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
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25
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Incerti M, Vicini P. Investigation of the Reaction between 3-Benzisothiazolones, an Isoindole Isoster and Activated Acetylenes: Synthesis of Heterocyclic Backbones for Building Bioactive Molecules. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.2197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Matteo Incerti
- Dipartimento di Farmacia; Università degli Studi di Parma; Viale delle Scienze 27/A Parma 43124 Italy
| | - Paola Vicini
- Dipartimento di Farmacia; Università degli Studi di Parma; Viale delle Scienze 27/A Parma 43124 Italy
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26
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Khalifa M, Abdel-Latif E, Gobouri A. Disperse Dyes Based on 5-Arylazo-thiazol-2-ylcarbamoyl-thiophenes: Synthesis, Antimicrobial Activity and Their Application on Polyester. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.2153] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- M. E. Khalifa
- Faculty of Science, Department of Chemistry; Taif University; Taif 21974 Saudi Arabia
- Department of Chemical Engineering; Higher Institute for Engineering and Technology; New Damietta Egypt
| | - E. Abdel-Latif
- Faculty of Science, Department of Chemistry; Mansoura University; Mansoura ET 35516 Egypt
| | - A. A. Gobouri
- Faculty of Science, Department of Chemistry; Taif University; Taif 21974 Saudi Arabia
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27
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Turabekova MA, Rasulev BF, Dzhakhangirov FN, Toropov AA, Leszczynska D, Leszczynski J. Aconitum and delphinium diterpenoid alkaloids of local anesthetic activity: comparative QSAR analysis based on GA-MLRA/PLS and optimal descriptors approach. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART C, ENVIRONMENTAL CARCINOGENESIS & ECOTOXICOLOGY REVIEWS 2014; 32:213-238. [PMID: 25226219 DOI: 10.1080/10590501.2014.938886] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The duration of anesthesia (related to protein binding of a drug) and the onset time (determined by the pKa) are important characteristics in assessment of local anesthetic agents. They are known to be affected by a number of factors. Early studies of antiarrhythmic diterpenoid alkaloids from plants Aconitum and Delphinium suggested that they possess local anesthetic activity due to their ability to suppress sodium currents of excited membranes. In this study we utilized toxicity, duration, and onset of action as endpoints to construct Quantitative Structure-Activity Relationship (QSAR) models for the series of 34 diterpenoid alkaloids characterized by local anesthetic activity using genetic algorithm-based multiple linear regression analysis/partial least squares and simplified molecular input line entry system (SMILES)-based optimal descriptors approach. The developed QSAR models correctly reflected factors that determine three endpoints of interest. Toxicity correlates with descriptors describing partition and reactivity of compounds. The duration of anesthesia was encoded by the parameters defining the ability of a compound to bind at the receptor site. The size and number of H-bond acceptor atoms were found not to favor the speed of onset, while topographic electronic descriptor demonstrated strong positive effect on it. SMILES-based optimal descriptors approach resulted in overall improvement of models. This approach was shown to be more sensitive to structural peculiarities of molecules than regression methods. The results clearly indicate that obtained QSARs are able to provide distinct rationales for compounds optimization with respect to particular endpoint.
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Affiliation(s)
- M A Turabekova
- a Interdisciplinary Center for Nanotoxicity , Jackson State University , Jackson , Mississippi , USA
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28
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Chen X, Hu Y, Gao J. Tautomers of 2-aminothiazole molecules in aqueous solutions explored by Raman, SERS and DFT methods. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.06.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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29
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Kagiava A, Theophilidis G. Assessing the permeability of the rat sciatic nerve epineural sheath against compounds with local anesthetic activity: an ex vivo electrophysiological study. Toxicol Mech Methods 2013; 23:634-40. [PMID: 23862572 DOI: 10.3109/15376516.2013.825826] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Abstract Studies have shown that the sciatic nerve epineural sheath acts as a barrier and has a delaying effect on the diffusion of local anesthetics into the nerve fibers and endoneurium. The purpose of this work is to assess and to quantify the permeability of the epineural sheath. For this purpose, we isolated the rat sciatic nerve in a three-chamber recording bath that allowed us to monitor the constant in amplitude evoked nerve compound action potential (nCAP) for over 24 h. For nerves exposed to the compounds under investigation, we estimated the IT50 the time required to inhibit the nCAP to 50% of its initial value. For desheathed nerves, the half-vitality time was denoted as IT50(-) and for the ensheath normal nerves as IT50(+). There was no significant difference between the IT50 of desheathed and ensheathed nerves exposed to normal saline. The IT50(-) for nerves exposed to 40 mM lidocaine was 12.1 ± 0.95 s (n=14) and the IT50(+) was 341.4 ± 2.49 s (n=6). The permeability (P) coefficient of the epineural sheath was defined as the ratio IT50(+)/IT50(-). The P coefficient for 40 mM lidocaine and linalool was 28.2 and 3.48, correspondingly, and for 30 mM 2-heptanone was 4.87. This is an indication that the epineural sheath provided a stronger barrier against lidocaine, compared to natural local anesthetics, linalool and 2-heptanone. The methodology presented here is a useful tool for studying epineural sheath permeability to compounds with local anesthetic properties.
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Affiliation(s)
- Alexia Kagiava
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University , Thessaloniki, Hellas , Greece
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30
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Liaras K, Geronikaki A, Glamočlija J, Cirić A, Soković M. Thiazole-based chalcones as potent antimicrobial agents. Synthesis and biological evaluation. Bioorg Med Chem 2011; 19:3135-40. [PMID: 21524583 DOI: 10.1016/j.bmc.2011.04.007] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2011] [Revised: 03/29/2011] [Accepted: 04/01/2011] [Indexed: 10/18/2022]
Abstract
As part of ongoing studies in developing new antimicrobials, we report the synthesis of a new class of structurally novel derivatives, that incorporate two known bioactive structures a thiazole and chalcone, to yield a class of compounds with interesting antimicrobial properties. Evaluation of antibacterial activity showed that almost all the compounds exhibited greater activity than reference drugs and thus could be promising novel drug candidates.
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Affiliation(s)
- K Liaras
- Aristotle University, School of Pharmacy, Department of Pharmaceutical Chemistry of Aristotle University of Thessaloniki, Greece
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31
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Gholivand K, Farshadian S, Erben MF, Della Védova CO. Synthesis and characterization of the first phosphonic diamide containing thiazolyl groups: Structural properties and tautomeric equilibrium. J Mol Struct 2010. [DOI: 10.1016/j.molstruc.2009.12.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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32
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Tsirlis A, Karanikola T, Dabarakis N, Liverdos K, Charisi M. Comparative in vitro Study of Relative Anesthetic Potency of Ropivacaine and Lidocaine. ACTA ACUST UNITED AC 2010. [DOI: 10.3923/rjpharm.2010.1.4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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