1
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Hassanin NM, Ali TE, Assiri MA, Abdel-Kariem SM. Novel carbazolyl-thiazolyl-chromone and carbazolyl-thiazolyl-pyrazole hybrids: synthesis, cytotoxicity evaluation and molecular docking studies. RSC Adv 2024; 14:17245-17260. [PMID: 38808237 PMCID: PMC11132180 DOI: 10.1039/d4ra03188a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Accepted: 05/22/2024] [Indexed: 05/30/2024] Open
Abstract
A simple synthetic method was performed to design a novel series of polycyclic systems consisting of carbazole-thiazolidinone-chromone hybrids 4a-e and carbazole-thiazolidinone-pyrazole hybrids 5a-e in excellent yields. The methodology depended on the one-pot four-component reaction of 3-amino-9-ethylcarbazole, substituted isothiocyanates, ethyl bromoacetate and 6-methyl-3-formylchromone in ethanol under ultrasound waves at 50 °C to give the carbazole-thiazolidinone-chromone hybrids 4a-e. The latter isolated products were treated with hydrazine hydrate in ethanol under ultrasound waves at 50 °C affording the corresponding carbazole-thiazolidinone-pyrazole hybrids 5a-e. Spectral and analytical data confirmed the structures of all the synthesized compounds. The target compounds were screened for their in vitro anticancer activities against HCT116, PC3 and HepG2 cancer cell lines using the standard SRB method. Fortunately, both compounds 5dand5e were the most active against all cancer cell lines compared with doxorubicin and can be promising anticancer agents. Both bioactive products 5band5e were studied by the molecular docking to see how they bind with VEGFR-2 receptor. The results indicated that those compounds exhibited high affinities towards VEGFR-2 and established remarkably similar interactions to those of the powerful VEGFR-2-KDR.
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Affiliation(s)
- Noha M Hassanin
- Department of Chemistry, Faculty of Education, Ain Shams University Cairo Egypt
| | - Tarik E Ali
- Central Labs, King Khalid University, AlQuraa Abha Saudi Arabia
- Department of Chemistry, Faculty of Science, King Khalid University, AlQuraa Abha Saudi Arabia
| | - Mohammed A Assiri
- Department of Chemistry, Faculty of Science, King Khalid University, AlQuraa Abha Saudi Arabia
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2
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Zbancioc G, Mangalagiu II, Moldoveanu C. The Effective Synthesis of New Benzoquinoline Derivatives as Small Molecules with Anticancer Activity. Pharmaceuticals (Basel) 2023; 17:52. [PMID: 38256886 PMCID: PMC10820420 DOI: 10.3390/ph17010052] [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: 11/08/2023] [Revised: 12/12/2023] [Accepted: 12/26/2023] [Indexed: 01/24/2024] Open
Abstract
In this study, some novel benzo[c]quinoline derivatives were synthesized, their structural characteristics were described, and their in vitro anticancer efficacy was investigated. The synthesis involves an initial quaternization of the nitrogen atom from benzo[c]quinoline and then a [3+2] dipolar cycloaddition reaction of the in situ formed ylide. The effectiveness of synthesis using traditional thermal heating (TH) compared to microwave (MW) and ultrasound (US) irradiation was investigated in detail. The setup of a reaction under MW or US irradiation offers a number of additional benefits: higher yields, a reduction in the amount of solvent used compared to TH, a reduction in the reaction time from hours to minutes, and a reduction in the amount of energy consumed. The structure of all the obtained compounds was proved by several spectral techniques (FTIR, HRMS, and NMR). All benzo[c]quinoline derivatives (quaternary salts and cycloadducts) along with ten other benzo[f]quinoline derivatives (quaternary salts and cycloadducts), previously obtained, were tested in an in vitro single-dose anticancer experiment. The results demonstrated that the cycloadducts 5a-c and 6a-c exhibit stronger anticancer activity than quaternary salts 3a-c. The most active compound is compound 5a, with anticancer activity on most of the cell lines studied, while the second most active compound is 6c, showing significant lethality for the SR leukemia cell line (17%). Structure-activity relationship (SAR) correlations are also included in the study.
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Affiliation(s)
- Gheorghita Zbancioc
- Chemistry Department, Alexandru Ioan Cuza University of Iasi, 11 Carol 1st Bvd, 700506 Iasi, Romania
| | - Ionel I. Mangalagiu
- Chemistry Department, Alexandru Ioan Cuza University of Iasi, 11 Carol 1st Bvd, 700506 Iasi, Romania
- Institute of Interdisciplinary Research-CERNESIM Centre, Alexandru Ioan Cuza University of Iasi, 11 Carol I, 700506 Iasi, Romania
| | - Costel Moldoveanu
- Chemistry Department, Alexandru Ioan Cuza University of Iasi, 11 Carol 1st Bvd, 700506 Iasi, Romania
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3
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Microfluidics Biocatalysis System Applied for the Synthesis of N-Substituted Benzimidazole Derivatives by Aza-Michael Addition. Catalysts 2022. [DOI: 10.3390/catal12121658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Benzimidazole scaffolds became an attractive subject due to their broad spectrum of pharmacological activities. In this work, a methodology was developed for the synthesis of N-substituted benzimidazole derivatives from benzimidazoles and α, β-unsaturated compounds (acrylonitriles, acrylate esters, phenyl vinyl sulfone) catalyzed by lipase TL IM from Thermomyces lanuginosus in continuous-flow microreactors. Investigations were conducted on reaction parameters such as solvent, substrate ratio, reaction temperature, reactant donor/acceptor structures, and reaction time. The transformation is promoted by inexpensive and readily available lipase in methanol at 45 °C for 35 min. A wide range of β-amino sulfone, β-amino nitrile, and β-amino carbonyl compounds were efficiently and selectively synthesized in high yields (76–97%). All in all, a microfluidic biocatalysis system was applied to the synthesis of N-substituted benzimidazole derivatives, and could serve as a promising fast synthesis strategy for further research to develop novel and highly potent active drugs.
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4
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Zbancioc G, Ciobanu CI, Mangalagiu II, Moldoveanu C. Ultrasound-Assisted Synthesis of Fluorescent Azatetracyclic Derivatives: An Energy-Efficient Approach. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27103180. [PMID: 35630657 PMCID: PMC9147717 DOI: 10.3390/molecules27103180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/12/2022] [Accepted: 05/14/2022] [Indexed: 11/24/2022]
Abstract
We report here an energy-efficient and straight synthesis of two new classes of derivatized fluorescent azatetracycles under ultrasound (US) irradiation. A first class of azatetracyclic compounds was synthesized by heterogeneous catalytic bromination of the α-keto substituent attached to the pyrrole moiety of the tetracyclic cycloadducts, while for the second, one class was synthesized by nucleophilic substitution of the bromide with the azide group. Comparative with conventional thermal heating (TH) under US irradiation, both types of reactions occur with substantially higher yields, shortened reaction time (from days to hours), lesser energy consumed, easier workup of the reaction, and smaller amounts of solvent required (at least three to five-fold less compared to TH), which make these reactions to be considered as energy efficient. The derivatized azatetracycle are blue emitters with λmax of fluorescence around 430–445 nm. A certain influence of the azatetracycle substituents concerning absorption and fluorescent properties was observed. Compounds anchored with a bulky azide group have shown decreased fluorescence intensity compared with corresponding bromides.
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Affiliation(s)
- Gheorghita Zbancioc
- Chemistry Department, Alexandru Ioan Cuza University of Iasi, Carol I Bvd., 700506 Iasi, Romania;
- Correspondence: (G.Z.); (C.M.); Tel.: +40-232-201278 (C.M.)
| | - Catalina-Ionica Ciobanu
- Institute of Interdisciplinary Research-CERNESIM Centre, Alexandru Ioan Cuza University of Iasi, Carol I Bvd., 700506 Iasi, Romania;
| | - Ionel I. Mangalagiu
- Chemistry Department, Alexandru Ioan Cuza University of Iasi, Carol I Bvd., 700506 Iasi, Romania;
- Institute of Interdisciplinary Research-CERNESIM Centre, Alexandru Ioan Cuza University of Iasi, Carol I Bvd., 700506 Iasi, Romania;
| | - Costel Moldoveanu
- Chemistry Department, Alexandru Ioan Cuza University of Iasi, Carol I Bvd., 700506 Iasi, Romania;
- Correspondence: (G.Z.); (C.M.); Tel.: +40-232-201278 (C.M.)
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5
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Diaconu D, Amăriucăi-Mantu D, Mangalagiu V, Antoci V, Zbancioc G, Mangalagiu II. Ultrasound assisted synthesis of hybrid quinoline-imidazole derivatives: a green synthetic approach. RSC Adv 2021; 11:38297-38301. [PMID: 35498117 PMCID: PMC9044051 DOI: 10.1039/d1ra07484a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 11/14/2021] [Indexed: 11/21/2022] Open
Abstract
A green, straightforward and efficient study for obtaining hybrid quinoline-imidazole derivatives under ultrasound (US) irradiation as well as under conventional thermal heating (TH) has been presented. The reaction pathway involves only two steps: the N-alkylation of imidazole ring and a Huisgen [3 + 2] dipolar cycloaddition reaction of ylides to dimethyl acetylenedicarboxylate (DMAD). For both types of reactions, a green workup procedure under US irradiation has been presented. Under US irradiation, the N-alkylation of nitrogen atoms from the imidazole nucleus has outstanding benefits in terms of reaction time, energy consumption and yields, and can thereby be considered an environmentally friendly method. Forty new hybrid quinoline-imidazole compounds have been synthesized: 18 salts, 8 dihydro-benzopyrrolo imidazolo quinoline, 9 benzopyrrolo-imidazolo quinoline and 5 dihydro-pyrroloquinoxaline quinoline cycloadducts.
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Affiliation(s)
- Dumitrela Diaconu
- Alexandru Ioan Cuza University of Iasi, Institute of Interdisciplinary Research, Department of Exact and Natural Sciences - CERNESIM Center 11 Carol I Bd. 700506 Iasi Romania
| | - Dorina Amăriucăi-Mantu
- Alexandru Ioan Cuza University of Iasi, Faculty of Chemistry 11 Carol I Bd. 700506 Iasi Romania
| | - Violeta Mangalagiu
- Alexandru Ioan Cuza University of Iasi, Institute of Interdisciplinary Research, Department of Exact and Natural Sciences - CERNESIM Center 11 Carol I Bd. 700506 Iasi Romania.,Stefan cel Mare University of Suceava, Faculty of Food Engineering Str. Universitatii 13 Suceava Romania
| | - Vasilichia Antoci
- Alexandru Ioan Cuza University of Iasi, Faculty of Chemistry 11 Carol I Bd. 700506 Iasi Romania
| | - Gheorghita Zbancioc
- Alexandru Ioan Cuza University of Iasi, Faculty of Chemistry 11 Carol I Bd. 700506 Iasi Romania
| | - Ionel I Mangalagiu
- Alexandru Ioan Cuza University of Iasi, Faculty of Chemistry 11 Carol I Bd. 700506 Iasi Romania .,Alexandru Ioan Cuza University of Iasi, Institute of Interdisciplinary Research, Department of Exact and Natural Sciences - CERNESIM Center 11 Carol I Bd. 700506 Iasi Romania
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6
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Moldoveanu C, Mangalagiu I, Zbancioc G. Fluorescent Azasteroids through Ultrasound Assisted Cycloaddition Reactions. Molecules 2021; 26:molecules26165098. [PMID: 34443688 PMCID: PMC8400541 DOI: 10.3390/molecules26165098] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/10/2021] [Accepted: 08/21/2021] [Indexed: 11/16/2022] Open
Abstract
We report here the synthesis and optical spectral properties of several new azasteroid derivatives. The formation of these compounds was explained based on the most probable mechanism. The luminescent heterocycles were synthesized by 1,3-dipolar cycloaddition reactions between benzo[f]quinoline and methylpropiolate or dimethyl acetylenedicarboxylate (DMAD). A selective and efficient way for [3+2]-dipolar cycloaddition of benzo[f]quinolinium ylides under ultrasound (US) irradiation (20 kHz processing frequency) is presented. We report substantially higher yields under US irradiation, whereas the solvent amounts required are at least three-fold less compared to classical heating. The azasteroid derivatives are blue emitters with λmax of fluorescence around 430–450 nm. A certain influence of the azasteroid substituents concerning absorption and fluorescent properties was observed. Compounds anchored with a bulky pivaloyl group or without a C=O carbonyl group have shown increased fluorescence intensity.
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Affiliation(s)
- Costel Moldoveanu
- Chemistry Department, Alexandru Ioan Cuza University of Iasi, 11 Carol 1st Bvd, 700506 Iasi, Romania;
- Correspondence: (C.M.); (G.Z.); Tel.: +40-232-201278 (C.M. & G.Z.)
| | - Ionel Mangalagiu
- Chemistry Department, Alexandru Ioan Cuza University of Iasi, 11 Carol 1st Bvd, 700506 Iasi, Romania;
- Institute of Interdisciplinary Research-CERNESIM Centre, Alexandru Ioan Cuza University of Iasi, 11 Carol I, 700506 Iasi, Romania
| | - Gheorghita Zbancioc
- Chemistry Department, Alexandru Ioan Cuza University of Iasi, 11 Carol 1st Bvd, 700506 Iasi, Romania;
- Correspondence: (C.M.); (G.Z.); Tel.: +40-232-201278 (C.M. & G.Z.)
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7
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Macsim AM, Georgescu E, Georgescu F, Filip P, Nicolescu A, Deleanu C. Benzimidazolium salts as starting materials or intermediates in 1,3-dipolar cycloadditions. MONATSHEFTE FUR CHEMIE 2021. [DOI: 10.1007/s00706-021-02795-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Noorhisham NA, Amri D, Mohamed AH, Yahaya N, Ahmad NM, Mohamad S, Kamaruzaman S, Osman H. Characterisation techniques for analysis of imidazolium-based ionic liquids and application in polymer preparation: A review. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115340] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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9
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Huisgen [3 + 2] Dipolar Cycloadditions of Phthalazinium Ylides to Activated Symmetric and Non-Symmetric Alkynes. Molecules 2020; 25:molecules25194416. [PMID: 32992961 PMCID: PMC7582813 DOI: 10.3390/molecules25194416] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/23/2020] [Accepted: 09/25/2020] [Indexed: 11/28/2022] Open
Abstract
We present herein a straightforward and efficient pathway for the synthesis of pyrrolophthalazine cycloadducts via Huisgen [3 + 2] dipolar cycloaddition reactions of phthalazinium ylides to methyl propiolate or dimethyl acetylenedicarboxylate (DMAD). A thoroughly comparative study concerning the efficiency of synthesis, conventional thermal heating (TH) versus microwave (MW) and ultrasound (US) irradiation, has been performed. The cycloaddition reactions of phthalazinium ylides to methyl propiolate occur regiospecific, with a single regioisomer being obtained. Under conventional TH, the cycloaddition reaction of phthalazinium ylides with DMAD occurs to a mixture of inseparable partial and fully aromatized pyrrolophthalazine cycloadducts, while MW or US irradiation are leading only to fully aromatized compounds, with the reactions becoming selective. A feasible mechanism for formation of fully aromatized compounds is presented. Besides selectivity, it has to be noticed that the reaction setup under MW or US irradiation offer a number of other certain advantages: higher yields, decreasing of the amount of used solvent comparative with TH, decreasing of the reaction time from hours to minutes and decreasing of the consumed energy; consequently, these reactions could be considered environmentally friendly.
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10
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Abstract
Azaheterocycles derivatives with pyridine-imidazole skeleton are compounds of great value for medicinal chemistry. We report herein the nitration of 1,1′-(pyridine-2,6-diylbis(methylene))bis{3-[2-(4-nitrophenyl)-2-oxoethyl]-1H-imidazol-3-ium} bromide using a typical mixture of nitric and sulphuric acid. The nitration occur with the oxidative cleavage of N–C bond between imidazolium ring and methylene group.
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11
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Resende de Azevedo J, Espitalier F, Ré MI. Ultrasound assisted crystallization of a new cardioactive prototype using ionic liquid as solvent. ULTRASONICS SONOCHEMISTRY 2019; 55:32-43. [PMID: 31084789 DOI: 10.1016/j.ultsonch.2019.03.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 03/08/2019] [Accepted: 03/09/2019] [Indexed: 06/09/2023]
Abstract
This work deals with the antisolvent crystallization of LASSBio-294 (3,4-methylenedioxybenzoyl-2-thienylhydrazon) assisted by ultrasound. An ionic liquid (IL), 1-ethyl-3-methylimidazolium methyl phosphonate [emim][CH3O(H)PO2] was used as solvent and water as antisolvent. The influence of the following parameters on crystals properties (size distribution, morphology, residual solvent and in vitro dissolution) were studied with two mixing mode (quick and dropwise) of solution with antisolvent. The impact of washing and drying process was also evaluated. Comparative studies of conventional crystallization conditions (without ultrasound) were also performed. The effect of ultrasound on LASSBio-294 recrystallized properties was influenced by the add mode, water/IL ratio and drug solution concentration. As example, US promoted the formation of small crystals with high residual IL under the following conditions: quick addition, high drug solution concentration and high water/IL ratio. However, despite the decrease of elementary particle size, ultrasound did not avoid crystals agglomeration. The drug dissolution rate was affected by the physical structure of agglomerates. When employed as drying process of washed crystals, spray drying reduced this agglomeration and improved the dissolution of LASSBio-294 crystals.
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Affiliation(s)
- Jacqueline Resende de Azevedo
- Université de Toulouse, Mines-Albi, UMR-CNRS 5302, Centre RAPSODEE, Campus Jarlard, F-81013 Albi CT cedex 09, France; Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, 43 boulevard du 11 novembre 1918, F-69100 Villeurbanne, France(1).
| | - Fabienne Espitalier
- Université de Toulouse, Mines-Albi, UMR-CNRS 5302, Centre RAPSODEE, Campus Jarlard, F-81013 Albi CT cedex 09, France.
| | - Maria Inês Ré
- Université de Toulouse, Mines-Albi, UMR-CNRS 5302, Centre RAPSODEE, Campus Jarlard, F-81013 Albi CT cedex 09, France.
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12
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Saadaoui I, Krichen F, Ben Salah B, Ben Mansour R, Miled N, Bougatef A, Kossentini M. Design, synthesis and biological evaluation of Schiff bases of 4-amino-1,2,4-triazole derivatives as potent angiotensin converting enzyme inhibitors and antioxidant activities. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.12.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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13
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Du LH, Dong Z, Long RJ, Chen PF, Xue M, Luo XP. The convenient Michael addition of imidazoles to acrylates catalyzed by Lipozyme TL IM from Thermomyces lanuginosus in a continuous flow microreactor. Org Biomol Chem 2019; 17:807-812. [PMID: 30629063 DOI: 10.1039/c8ob02533a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A fast and green protocol for the Michael addition of imidazoles to acrylates catalyzed by Lipozyme TL IM from Thermomyces lanuginosus in a continuous flow microreactor was developed. In contrast with existing methods, this method is simple (35 min), uses mild reaction conditions (45 °C) and is environmentally friendly. This enzymatic Michael addition performed in continuous flow microreactors is an innovation that may open up the use of enzymatic microreactors in imidazole analogue biotransformations.
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Affiliation(s)
- Li-Hua Du
- College of Pharmaceutical Science, ZheJiang University of Technology, Zhejiang, Hangzhou, 310014, People's Republic of China.
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14
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The ultrasonic-assisted synthesis of tetrafunctional acrylated epoxy clay nanocomposite. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2647-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Heck RT, Lucas BN, Santos DJPD, Pinton MB, Fagundes MB, de Araújo Etchepare M, Cichoski AJ, de Menezes CR, Barin JS, Wagner R, Campagnol PCB. Oxidative stability of burgers containing chia oil microparticles enriched with rosemary by green-extraction techniques. Meat Sci 2018; 146:147-153. [DOI: 10.1016/j.meatsci.2018.08.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 07/31/2018] [Accepted: 08/15/2018] [Indexed: 12/30/2022]
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16
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Menteşe E, Kahveci B, Menteşe M. Green Protocol: Catalyst-Free Synthesis of 2-Substituted Benzimidazoles under Ultrasound Irradiation. JOURNAL OF CHEMICAL RESEARCH 2018. [DOI: 10.3184/174751918x15293267526838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The synthesis of 2-substituted benzimidazoles from the reaction of o-phenylenediamine and an imino ester hydrochloride with ultrasound irradiation is reported. The procedure has an eco-friendly and simple workup with good yield in a short time.
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Affiliation(s)
- Emre Menteşe
- Department of Chemistry, Art and Science Faculty, Recep Tayyip Erdogan University, Rize, Turkey
| | - Bahittin Kahveci
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Meltem Menteşe
- Department of Chemistry, Art and Science Faculty, Recep Tayyip Erdogan University, Rize, Turkey
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17
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Gao L, Wang W, Yu B, Cong H. Novel triple responsive polybenzimidazole synthesized via amine-ene Michael addition. NEW J CHEM 2018. [DOI: 10.1039/c8nj01571f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
BITO polyesters were synthesized for the first time, which show pH, CD and ROS responsiveness and have great potential as drug delivery systems.
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Affiliation(s)
- Lilong Gao
- Institute of Biomedical Materials and Engineering
- College of Materials Science and Engineering
- Qingdao University
- Qingdao 266071
- China
| | - Wenlin Wang
- Institute of Biomedical Materials and Engineering
- College of Materials Science and Engineering
- Qingdao University
- Qingdao 266071
- China
| | - Bing Yu
- Institute of Biomedical Materials and Engineering
- College of Materials Science and Engineering
- Qingdao University
- Qingdao 266071
- China
| | - Hailin Cong
- Institute of Biomedical Materials and Engineering
- College of Materials Science and Engineering
- Qingdao University
- Qingdao 266071
- China
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18
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Catalyzed synthesis of functionalized pyrrolo[3,4-b]quinolines via one-pot three-component reactions under conventional and nonconventional conditions. MONATSHEFTE FUR CHEMIE 2017. [DOI: 10.1007/s00706-017-1979-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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19
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Rezki N, Aouad MR. Green ultrasound-assisted three-component click synthesis of novel 1H-1,2,3-triazole carrying benzothiazoles and fluorinated-1,2,4-triazole conjugates and their antimicrobial evaluation. ACTA PHARMACEUTICA (ZAGREB, CROATIA) 2017; 67:309-324. [PMID: 28858836 DOI: 10.1515/acph-2017-0024] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/25/2017] [Indexed: 01/25/2023]
Abstract
The present study describes an efficient and ecofriendly, ultrasound, one-pot click cycloaddition approach for the construction of a novel series of 1,4-disubstituted-1,2,3-triazoles tethered with fluorinated 1,2,4-triazole-benzothiazole molecular conjugates. It involved three-component condensation of the appropriate bromoacetamide benzothiazole, sodium azide and 4-alkyl/aryl-5-(2-fluorophenyl)-3-(prop-2-ynylthio)-1,2,4-triazoles 4a-e through a Cu(I)-catalyzed 1,3-dipolar cycloaddition reaction. This approach involves in situ generation of azidoacetamide benzothiazole, followed by condensation with terminal alkynes in the presence of CuSO4/Na-ascorbate in aqueous DMSO under both conventional and ultrasound conditions. Some of the designed 1,2,3-triazole conjugates 6a-o were recognized for their antimicrobial activity against some bacterial and fungal pathogenic strains.
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Affiliation(s)
- Nadjet Rezki
- Department of Chemistry, Faculty of Sciences , Taibah University , PO Box 344, Al-Madinah , Al-Munawarah, Saudi Arabia
- Laboratoire de Chimie et Electrochimie des Complexes Métalliques (LCECM) , Department of Chemistry, Faculty of Sciences , University of Sciences and Technology Mohamed Boudiaf , USTO-MB, PO Box 1505, Oran , El M’nouar, Algeria
| | - Mohamed Reda Aouad
- Department of Chemistry, Faculty of Sciences , Taibah University , PO Box 344, Al-Madinah , Al-Munawarah, Saudi Arabia
- Laboratoire de Chimie et Electrochimie des Complexes Métalliques (LCECM) , Department of Chemistry, Faculty of Sciences , University of Sciences and Technology Mohamed Boudiaf , USTO-MB, PO Box 1505, Oran , El M’nouar, Algeria
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20
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Ameta G, Punjabi PB. Sonochemical Synthesis and Characterization of Some Alkoxyl-Functionalized Ionic Liquids Derived from 1-Butoxyl-3-butyl Imidazolium Bromide. J SOLUTION CHEM 2017. [DOI: 10.1007/s10953-017-0627-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Ultrasound in Combination with Ionic Liquids: Studied Applications and Perspectives. Top Curr Chem (Cham) 2016; 374:51. [PMID: 27573403 DOI: 10.1007/s41061-016-0055-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 07/12/2016] [Indexed: 01/23/2023]
Abstract
Ionic liquids (ILs) as reaction media, and sonochemistry (US) as activation method, represent separately unconventional approaches to reaction chemistry that, in many cases, generate improvements in yield, rate and selectivity compared to traditional chemistry, or even induce a change in the mechanisms or expected products. Recently, these two technologies have been combined in a range of different applications, demonstrating very significant and occasionally surprising synergetic effects. In this book chapter, the advantages and limitations of the IL/US combination in different chemical applications are critically reviewed in order to understand how, and in which respects, it could become an essential tool of sustainable chemistry in the future. Fundamental aspects and practical considerations of the combination are discussed to better control and demonstrate the brought synergetic effects.
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Moldoveanu C, Zbancioc G, Mantu D, Maftei D, Mangalagiu I. The Cycloaddition of the Benzimidazolium Ylides with Alkynes: New Mechanistic Insights. PLoS One 2016; 11:e0156129. [PMID: 27224656 PMCID: PMC4880325 DOI: 10.1371/journal.pone.0156129] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 05/10/2016] [Indexed: 11/24/2022] Open
Abstract
New insights concerning the reaction mechanism in the cycloaddition reaction of benzimidazolium ylides to activated alkynes are presented. The proposed pathway leading both to 2-(1H-pyrrol-1-yl)anilines and to pyrrolo[1,2-a]quinoxalin-4(5H)-ones involves an opening of the imidazole ring from the cycloaddition product, followed by a nucleophilic attack of the aminic nitrogen to a proximal carbonyl group and the elimination of a leaving group. The mechanistic considerations are fully supported by experimental data, including the XRD resolved structure of the key reaction intermediate.
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Affiliation(s)
- Costel Moldoveanu
- Department of Chemistry, Alexandru Ioan Cuza University of Iasi, Iasi, Romania
| | - Gheorghita Zbancioc
- Department of Chemistry, Alexandru Ioan Cuza University of Iasi, Iasi, Romania
- * E-mail:
| | - Dorina Mantu
- Department of Chemistry, Alexandru Ioan Cuza University of Iasi, Iasi, Romania
| | - Dan Maftei
- Department of Chemistry, Alexandru Ioan Cuza University of Iasi, Iasi, Romania
| | - Ionel Mangalagiu
- Department of Chemistry, Alexandru Ioan Cuza University of Iasi, Iasi, Romania
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Rezki N, Al-Sodies SA, Aouad MR, Bardaweel S, Messali M, El Ashry ESH. An Eco-Friendly Ultrasound-Assisted Synthesis of Novel Fluorinated Pyridinium Salts-Based Hydrazones and Antimicrobial and Antitumor Screening. Int J Mol Sci 2016; 17:ijms17050766. [PMID: 27213367 PMCID: PMC4881586 DOI: 10.3390/ijms17050766] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2016] [Revised: 04/28/2016] [Accepted: 05/09/2016] [Indexed: 11/16/2022] Open
Abstract
The present work reports an efficient synthesis of fluorinated pyridinium salts-based hydrazones under both conventional and eco-friendly ultrasound procedures. The synthetic approach first involves the preparation of halogenated pyridinium salts through the condensation of isonicotinic acid hydrazide (1) with p-fluorobenzaldehyde (2) followed by the nucleophilic alkylation of the resulting N-(4-fluorobenzylidene)isonicotinohydrazide (3) with a different alkyl iodide. The iodide counteranion of 5–10 was subjected to an anion exchange metathesis reaction in the presence of an excess of the appropriate metal salts to afford a new series of fluorinated pyridinium salts tethering a hydrazone linkage 11–40. Ultrasound irradiation led to higher yields in considerably less time than the conventional methods. The newly synthesized ILs were well-characterized with FT-IR, 1H NMR, 13C NMR, 11B, 19F, 31P and mass spectral analyses. The ILs were also screened for their antimicrobial and antitumor activities. Within the series, the salts tethering fluorinated counter anions 11–13, 21–23, 31–33 and 36–38 were found to be more potent against all bacterial and fungal strains at MIC 4–8 µg/mL. The in vitro antiproliferative activity was also investigated against four tumor cell lines (human ductal breast epithelial tumor T47D, human breast adenocarcinoma MCF-7, human epithelial carcinoma HeLa and human epithelial colorectal adenocarcinoma Caco-2) using the MTT assay, which revealed that promising antitumor activity was exhibited by compounds 5, 12 and 14.
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Affiliation(s)
- Nadjet Rezki
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia.
- Department of Chemistry, Faculty of Sciences, University of Sciences and Technology Mohamed Boudiaf, Laboratoire de Chimie and Electrochimie des Complexes Metalliques (LCECM) USTO-MB, P.O. Box 1505, El M`nouar, Oran 31000, Algeria.
| | - Salsabeel A Al-Sodies
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia.
| | - Mohamed R Aouad
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia.
- Department of Chemistry, Faculty of Sciences, University of Sciences and Technology Mohamed Boudiaf, Laboratoire de Chimie and Electrochimie des Complexes Metalliques (LCECM) USTO-MB, P.O. Box 1505, El M`nouar, Oran 31000, Algeria.
| | - Sanaa Bardaweel
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Jordan, Amman 11942, Jordan.
| | - Mouslim Messali
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia.
| | - El Sayed H El Ashry
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria 21500, Egypt.
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Gadilohar BL, Pinjari DV, Shankarling GS. An Energy Efficient Sonochemical Selective Oxidation of Benzyl Alcohols to Benzaldehydes by Using Bio-TSIL Choline Peroxydisulfate. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b00731] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Balu L. Gadilohar
- Department of Dyestuff Technology, and ‡Department of
Chemical Engineering, Institute of Chemical Technology, N. P. Marg,
Matunga, Mumbai, 400 019, India
| | - Dipak V. Pinjari
- Department of Dyestuff Technology, and ‡Department of
Chemical Engineering, Institute of Chemical Technology, N. P. Marg,
Matunga, Mumbai, 400 019, India
| | - Ganapati S. Shankarling
- Department of Dyestuff Technology, and ‡Department of
Chemical Engineering, Institute of Chemical Technology, N. P. Marg,
Matunga, Mumbai, 400 019, India
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Rezki N. A Green Ultrasound Synthesis, Characterization and Antibacterial Evaluation of 1,4-Disubstituted 1,2,3-Triazoles Tethering Bioactive Benzothiazole Nucleus. Molecules 2016; 21:505. [PMID: 27096862 PMCID: PMC6273572 DOI: 10.3390/molecules21040505] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 04/08/2016] [Accepted: 04/12/2016] [Indexed: 11/16/2022] Open
Abstract
The synthesis of N-(benzo[d]thiazol-2-yl)-2-(4-substituted-1H-1,2,3-triazol-1-yl)acetamides 5a–r via the 1,3-dipolar cycloaddition reaction between 2-azido-N-(benzo[d]thiazol-2-yl)acetamide derivatives 3a–c and different alkynes were performed in the presence and absence of ultrasound irradiation. The synthesis was carried out using t-BuOH/H2O (1:1, v/v) as reaction solvents and CuSO4·5H2O/sodium ascorbate as the catalyst. The copper catalyst was implemented to provide the regioselective 1,4-disubstituted 1,2,3-triazoles 5a–r. Significant reductions in reaction times with comparably higher yields were observed when the reactions were carried out under ultrasound irradiation. The structures of the newly synthesized 1,2,3-triazoles were elucidated by IR, NMR, MS, and elemental analyses. They were also screened for their antimicrobial activity against three gram-positive (Streptococcus pneumonia, Bacillus subtilis, and Staphylococcus aureus), three gram-negative (Pseudomonasaeuroginosa, Escherichia coli, and Klebsiella pneumonia), and two fungal strains (Aspergillus fumigates and Candida albicans). Most of the tested compounds displayed promising antimicrobial activities at a Minimum Inhibition Concentration (MIC) of 4–16 μg/mL.
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Affiliation(s)
- Nadjet Rezki
- Department of Chemistry, Faculty of Sciences, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia.
- Laboratoire de Chimie & Electrochimie des Complexes Métalliques (LCECM), USTO-MB, Department of Chemistry, Faculty of Sciences, University of Sciences, and Technology Mohamed Boudiaf, B.p. 1505 El M'nouar, Oran 31000, Algeria.
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Martins PLG, de Rosso VV. Thermal and light stabilities and antioxidant activity of carotenoids from tomatoes extracted using an ultrasound-assisted completely solvent-free method. Food Res Int 2016. [DOI: 10.1016/j.foodres.2016.01.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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27
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Wen J, Luo YL, Zhang HZ, Zhao HH, Zhou CH, Cai GX. A green and convenient approach toward benzimidazole derivatives and their antimicrobial activity. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2015.12.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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