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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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Synthesis and biological evaluation of some novel urea and thiourea derivatives of isoxazolo[4,5-d]pyridazine and structurally related thiazolo[4,5-d]pyridazine as antimicrobial agents. Arch Pharm Res 2013; 36:1354-68. [PMID: 23657806 DOI: 10.1007/s12272-013-0144-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2013] [Accepted: 04/28/2013] [Indexed: 10/26/2022]
Abstract
This study reports the synthesis of some novel isoxazolo[4,5-d]pyridazines and structurally related thiazolo[4,5-d]pyridazines, and their biological evaluation as antimicrobial agents. The proposed compounds were designed to contain pharmacophores such as urea, thiourea, sulfonylurea (thiourea) and some derived functionalities that are believed to contribute to the anticipated biological activities. The results revealed that 25 compounds displayed broad spectrum of antibacterial activity, with greater inhibitory effect on the growth of the tested Gram positive strains compared to Gram negative ones. Moreover, 14 compounds were able to produce appreciable growth inhibitory activity against Candida albicans fungus when compared to Clotrimazole. Most of the tested isoxazolo[4,5-d]pyridazines displayed better antimicrobial profile than their corresponding thiazolo[4,5-d]pyridazine congeners. Four compounds namely, p-(3,7-dimethyl-4-oxo-4H-isoxazolo [4,5-d]pyridazine-5-yl)benzenesulfonylthioureas (11c-d), 3-substituted-2-[p-(3,7-dimethyl-4-oxo-4H-isoxazolo[4,5-d]pyridazine-5-yl)-benzene-sufonylimino]-4-oxothiazolidines (13d) and p-(2,7-dimethyl-4-oxo-4H-thiazolo[4,5-d]pyridazin-5-yl)benzenesulfonylthiourea (24c) were found to be most active antimicrobial members in present study.
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Vicini P, Geronikaki A, Anastasia K, Incerti M, Zani F. Synthesis and antimicrobial activity of novel 2-thiazolylimino-5-arylidene-4-thiazolidinones. Bioorg Med Chem 2006; 14:3859-64. [PMID: 16488614 DOI: 10.1016/j.bmc.2006.01.043] [Citation(s) in RCA: 227] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2005] [Revised: 01/11/2006] [Accepted: 01/17/2006] [Indexed: 11/22/2022]
Abstract
New 2-thiazolylimino-5-arylidene-4-thiazolidinones (compounds 4a-j), unsubstituted or carrying hydroxy, methoxy, nitro and chloro groups on the benzene ring, were synthesized and assayed in vitro for their antimicrobial activity against Gram positive and Gram negative bacteria, yeasts and mould. The compounds were very potent towards all tested Gram positive microorganisms (MIC ranging from 0.03 to 6 microg/mL in most of the cases) and Gram negative Haemophilus influenzae (MIC 0.15-1.5 microg/mL), whereas no effectiveness was exhibited against Gram negative Escherichia coli and fungi up to the concentration of 100 microg/mL. The 5-arylidene derivatives showed an antibacterial efficacy considerably greater than that of the parent 2-(thiazol-2-ylimino)thiazolidin-4-one 3, suggesting that the substituted and unsubstituted 5-arylidene moiety plays an important role in enhancing the antimicrobial properties of this class of compounds. The remarkable inhibition of the growth of penicillin-resistant staphylococci makes these substances promising agents also for the treatment of infections caused by microorganisms resistant to currently available drugs.
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Affiliation(s)
- Paola Vicini
- Dipartimento Farmaceutico, Università degli Studi di Parma, Parco Area delle Scienze 27/A, Parma 43100, Italy.
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Vicini P, Incerti M, Doytchinova IA, La Colla P, Busonera B, Loddo R. Synthesis and antiproliferative activity of benzo[d]isothiazole hydrazones. Eur J Med Chem 2006; 41:624-32. [PMID: 16540208 DOI: 10.1016/j.ejmech.2006.01.010] [Citation(s) in RCA: 124] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2005] [Revised: 01/26/2006] [Accepted: 01/27/2006] [Indexed: 11/17/2022]
Abstract
Several benzo[d]isothiazole hydrazones have been evaluated for their potential antiretroviral activity. Since a number of these compounds were found to be inactive against viruses, but showed cytotoxicity at micromolar concentrations against the human CD4+ lymphocytes (MT-4) that were used to support HIV-1 growth, they were further tested for antiproliferative activity. The compounds resulted as being cytotoxic for MT-4 cells and new derivatives which were rationally designed and synthesized, were tested for antiproliferative activity against several leukaemia and solid tumour cell lines. In addition, these compounds were evaluated against "normal" cell lines. Compound 2h proved to be the most active compound and the fragment -CO-NH-N=CH-2-hydroxyphenyl was identified as being very important for biological activity, suggesting intramolecular hydrogen bond formation or favourable mutual disposition between two important centres in the pharmacophore. 1H-NMR spectra have been explained with the support of a conformational analysis.
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Affiliation(s)
- Paola Vicini
- Dipartimento Farmaceutico Università degli Studi Parma, Parco Area delle Scienze 27/A-43100 Parma, Italy.
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Vicini P, Zani F, Cozzini P, Doytchinova I. Hydrazones of 1,2-benzisothiazole hydrazides: synthesis, antimicrobial activity and QSAR investigations. Eur J Med Chem 2002; 37:553-64. [PMID: 12126774 DOI: 10.1016/s0223-5234(02)01378-8] [Citation(s) in RCA: 201] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A series of hydrazones of 1,2-benzisothiazole hydrazides 1a-m, 2a-m, 3a-m, 4a-m, 5a-m as well as their cyclic (1 and 4) and acyclic (2, 3 and 5) 1,2-benzisothiazole parent hydrazides, were synthesised and evaluated as antibacterial and antifungal agents. All of the 2-amino-1,2-benzisothiazol-3(2H)-one derivatives, belonging to series I and IV, showed a good antibacterial activity against Gram positive bacteria. Most of them were active against yeasts too. Compounds 1 and 4, together with 1l, proved to be the most effective compounds. Quantitative structure-activity relationship (QSAR) investigation with a 2D-QSAR analysis was applied to find a correlation between different experimental or calculated physicochemical parameters of the compounds studied. A 3D-QSAR study was performed, applying Comparative Molecular Similarity Indices Analysis (CoMSIA) method, to derive quantitative models relating the structural features of 1,2-benzisothiazole derivatives 1, 1a-m and 4, 4a-m and their antimicrobial activity against Bacillus subtilis, resulted the most sensitive micro-organism.
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Affiliation(s)
- Paola Vicini
- Dipartimento Farmaceutico, Università degli Studi di Parma, Parco Area delle Scienze 27/A, 43100, Parma, Italy. pvicini@
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Geronikaki A, Lagunin A, Poroikov V, Filimonov D, Hadjipavlou-Litina D, Vicini P. Computer aided prediction of biological activity spectra: evaluating versus known and predicting of new activities for thiazole derivatives. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2002; 13:457-471. [PMID: 12184387 DOI: 10.1080/10629360290014322] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Computer aided prediction of biological activity spectra by the computer program PASS was applied to a set of 89 new thiazole derivatives. Experimentally tested activities (NSAID, local anaesthetic and antioxidant) coincide with the experiment in 70.8% cases, that exceeds significantly the random guess-work (approximately 0.1%). Therefore, computer aided prediction using the Prediction of Activity Spectra for Substances (PASS) system (http://www.ibmh.msk.su/PASS) provides a reliable basis for planning of synthesis and experimental study for new compounds. New psychotropic activities are predicted for some compounds from the series under study. In particular, 7, 44 and 55 compounds likely have anxiolytic, anticonvulsant and cognition enhancer effects, respectively. Most of these compounds have the estimated values of probability to be active (Pa) less than 60%. Therefore, if their activity will be confirmed by the experiment, they might occur to be New Chemical Entities.
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Affiliation(s)
- A Geronikaki
- Aristotelian University of Thessaloniki, School of Pharmacy, Department of Pharmaceutical Chemistry, Greece.
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