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Hassan RM, Yehia H, El-Behairy MF, El-Azzouny AAS, Aboul-Enein MN. Design and synthesis of new quinazolinone derivatives: investigation of antimicrobial and biofilm inhibition effects. Mol Divers 2025; 29:21-42. [PMID: 38656598 PMCID: PMC11785708 DOI: 10.1007/s11030-024-10830-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 02/25/2024] [Indexed: 04/26/2024]
Abstract
New quinazolin-4-ones 9-32 were synthesized in an attempt to overcome the life-threatening antibiotic resistance phenomenon. The antimicrobial screening revealed that compounds 9, 15, 16, 18, 19, 20 and 29 are the most broad spectrum antimicrobial agents in this study with safe profile on human cell lines. Additionally, compounds 19 and 20 inhibited biofilm formation in Pseudomonas aeruginosa, which is regulated by quorum sensing system, at sub-minimum inhibitory concentrations (sub-MICs) with IC50 values 3.55 and 6.86 µM, respectively. By assessing other pseudomonal virulence factors suppression, it was found that compound 20 decreased cell surface hydrophobicity compromising bacterial cells adhesion, while both compounds 19 and 20 curtailed the exopolysaccharide production which constitutes the major component of the matrix binding biofilm components together. Also, at sub-MICs Pseudomonas cells twitching motility was impeded by compounds 19 and 20, a trait which augments the cells pathogenicity and invasion potential. Molecular docking study was performed to further evaluate the binding mode of candidates 19 and 20 as inhibitors of P. aeruginosa quorum sensing transcriptional regulator PqsR. The achieved results demonstrate that both compounds bear promising potential for discovering new anti-biofilm and quorum quenching agents against Pseudomonas aeruginosa without triggering resistance mechanisms as the normal bacterial life cycle is not disturbed.
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Affiliation(s)
- Rasha Mohamed Hassan
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre (ID: 60014618), P.O. 12622, Dokki, Giza, Egypt.
| | - Heba Yehia
- Chemistry of Natural and Microbial Products Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre (ID: 60014618), P.O. 12622, Dokki, Giza, Egypt
| | - Mohammed F El-Behairy
- Department of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Sadat City, 32897, Sadat City, Egypt
| | - Aida Abdel-Sattar El-Azzouny
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre (ID: 60014618), P.O. 12622, Dokki, Giza, Egypt
| | - Mohamed Nabil Aboul-Enein
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre (ID: 60014618), P.O. 12622, Dokki, Giza, Egypt.
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2
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Gou W, Dai P, Wang M, Wang Y, Ma N, Zhou X, Xu Y, Zhang L, Li C. Synthesis of Diverse Ureas from Amines and CO 2 at Atmospheric Pressure and Room Temperature. J Org Chem 2024; 89:12498-12507. [PMID: 39180140 DOI: 10.1021/acs.joc.4c01474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2024]
Abstract
A metal-free method is developed to perform the synthesis of urea derivatives utilizing CO2 as the C1 building block at atmospheric pressure and room temperature. In addition to diverse symmetric and dissymmetric ureas, benzimidazolones and quinazolinone can also be easily prepared using this protocol. Most importantly, the gram-scale preparation of fungicide pencycuron and antipsychotic drug pimavanserin proceeded smoothly under the mild conditions.
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Affiliation(s)
- Wenchang Gou
- School of Pharmaceutical Sciences, Guizhou Medical University, 550004 Guiyang, People's Republic of China
| | - Pinli Dai
- School of Pharmaceutical Sciences, Guizhou Medical University, 550004 Guiyang, People's Republic of China
| | - Mei Wang
- School of Pharmaceutical Sciences, Guizhou Medical University, 550004 Guiyang, People's Republic of China
| | - Yunhuan Wang
- School of Pharmaceutical Sciences, Guizhou Medical University, 550004 Guiyang, People's Republic of China
| | - Nana Ma
- School of Pharmaceutical Sciences, Guizhou Medical University, 550004 Guiyang, People's Republic of China
| | - Xuan Zhou
- School of Pharmaceutical Sciences, Guizhou Medical University, 550004 Guiyang, People's Republic of China
| | - Yingjian Xu
- GoldenKeys High-tech Materials Co., Ltd., Guian New Area, Guizhou 550025, People's Republic of China
| | - Lin Zhang
- School of Pharmaceutical Sciences, Guizhou Medical University, 550004 Guiyang, People's Republic of China
| | - Chun Li
- School of Pharmaceutical Sciences, Guizhou Medical University, 550004 Guiyang, People's Republic of China
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3
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Sroor FM, Soliman AAF, Youssef EM, Abdelraof M, El-Sayed AF. Green, facile synthesis and evaluation of unsymmetrical carbamide derivatives as antimicrobial and anticancer agents with mechanistic insights. Sci Rep 2024; 14:15441. [PMID: 38965246 PMCID: PMC11224357 DOI: 10.1038/s41598-024-65308-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 06/19/2024] [Indexed: 07/06/2024] Open
Abstract
A very practical method for the synthesis of unsymmetrical carbamide derivatives in good to excellent yield was presented, without the need for any catalyst and at room temperature. Using a facile and robust protocol, fifteen unsymmetrical carbamide derivatives (9-23) bearing different aliphatic amine moieties were designed and synthesized by the reaction of secondary aliphatic amines with isocyanate derivatives in the presence of acetonitrile as an appropriate solvent in good to excellent yields. Trusted instruments like IR, mass spectrometry, NMR spectra, and elemental analyses were employed to validate the purity and chemical structures of the synthesized compounds. All the synthesized compounds were tested as antimicrobial agents against some clinically bacterial pathogens such as Salmonella typhimurium, Bacillus subtilis, Pseudomonas aeruginosa, Staphylococcus aureus and Candida albicans. Compounds 15, 16, 17, 19 and 22 showed potent antimicrobial activity with promising MIC values compared to the positive controls. Moreover, compounds 15 and 22 provide a potent lipid peroxidation (LPO) of the bacterial cell wall. On the other hand, we investigated the anti-proliferative activity of compounds 9-23 against selected human cancerous cell lines of breast (MCF-7), colon (HCT-116), and lung (A549) relative to healthy noncancerous control skin fibroblast cells (BJ-1). The mechanism of their cytotoxic activity has been also examined by immunoassaying the levels of key anti- and pro-apoptotic protein markers. The results of MTT assay revealed that compounds 10, 13, 21, 22 and 23 possessed highly cytotoxic effects. Out of these, three synthesized compounds 13, 21 and 22 showed cytotoxicity with IC50 values (13, IC50 = 62.4 ± 0.128 and 22, IC50 = 91.6 ± 0.112 µM, respectively, on MCF-7), (13, IC50 = 43.5 ± 0.15 and 21, IC50 = 38.5 ± 0.17 µM, respectively, on HCT-116). Cell cycle and apoptosis/necrosis assays demonstrated that compounds 13 and 22 induced S and G2/M phase cell cycle arrest in MCF-7 cells, while only compound 13 had this effect on HCT-116 cells. Furthermore, compound 13 exhibited the greatest potency in inducing apoptosis in both cell lines compared to compounds 21 and 22. Docking studies indicated that compounds 10, 13, 21 and 23 could potentially inhibit enzymes and exert promising antimicrobial effects, as evidenced by their lower binding energies and various types of interactions observed at the active sites of key enzymes such as Sterol 14-demethylase of C. albicans, Dihydropteroate synthase of S. aureus, LasR of P. aeruginosa, Glucosamine-6-phosphate synthase of K. pneumenia and Gyrase B of B. subtilis. Moreover, 13, 21, and 22 demonstrated minimal binding energy and favorable affinity towards the active pocket of anticancer receptor proteins, including CDK2, EGFR, Erα, Topoisomerase II and VEGFFR. Physicochemical properties, drug-likeness, and ADME (absorption, distribution, metabolism, excretion, and toxicity) parameters of the selected compounds were also computed.
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Affiliation(s)
- Farid M Sroor
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, 12622, Egypt.
| | - Ahmed A F Soliman
- Pharmacognosy Department, National Research Centre, Dokki, 12622, Egypt
| | | | - Mohamed Abdelraof
- Microbial Chemistry Department, Biotechnology Research Institute, National Research Centre, Giza, Egypt
| | - Ahmed F El-Sayed
- Microbial Genetics Department, Biotechnology Research Institute, National Research Centre, Giza, Egypt
- Egypt Center for Research and Regenerative Medicine (ECRRM), Cairo, Egypt
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4
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Abbasi F, Sardarian AR. Direct additive-free N-formylation and N-acylation of anilines and synthesis of urea derivatives using green, efficient, and reusable deep eutectic solvent ([ChCl][ZnCl 2] 2). Sci Rep 2024; 14:7206. [PMID: 38532063 DOI: 10.1038/s41598-024-57608-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 03/20/2024] [Indexed: 03/28/2024] Open
Abstract
In the current report, we introduce a simple, mild efficient and green protocol for N-formylation and N-acetylation of anilines using formamide, formic acid, and acetic acid as inexpensive, nontoxic, and easily available starting materials just with heating along stirring in [ChCl][ZnCl2]2 as a durable, reusable deep eutectic solvent (DES), which acts as a dual catalyst and solvent system to produce a wide range of formanilides and acetanilides. Also, a variety of unsymmetrical urea derivatives were synthesized by the reaction of phenyl isocyanate with a range of amine compounds using this benign DES in high to excellent yields. [ChCl][ZnCl2]2 showed good recycling and reusability up to four runs without considerable loss of its catalytic activity.
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Affiliation(s)
- Fatemeh Abbasi
- Chemistry Department, College of Sciences, Shiraz University, Shiraz, 71946-84795, Iran
| | - Ali Reza Sardarian
- Chemistry Department, College of Sciences, Shiraz University, Shiraz, 71946-84795, Iran.
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5
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Ye Q, Zhong Z, Chao S, Liu L, Chen M, Feng X, Wu H. Antifungal Effect of Bacillus velezensis ZN-S10 against Plant Pathogen Colletotrichum changpingense and Its Inhibition Mechanism. Int J Mol Sci 2023; 24:16694. [PMID: 38069016 PMCID: PMC10705930 DOI: 10.3390/ijms242316694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/18/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023] Open
Abstract
In order to optimize crop production and mitigate the adverse impacts associated with the utilization of chemical agents, it is necessary to explore new biocontrol agents. Bacillus velezensis has been widely studied as a biocontrol agent because of its efficient and ecofriendly plant disease control mechanisms. This study shows that the strain ZN-S10 effectively reduces the area of leaf spots caused by the pathogen Colletotrichum changpingense ZAFU0163-1, which affects conidia production and germination, inhibits mycelium growth, and induces mycelium deformation. In antifungal experiments with crude extracts, we observed a delay in the cell cycle of conidia, which may be responsible for the inhibition of conidial germination. Among the bioactive metabolites detected through integrated LC-MS- and GC-MS-based untargeted metabolomics, 7-O-Succinyl macrolactin A, telocinobufagin, and surfactin A may be the main antifungal metabolites of strain ZN-S10. The presence of 7-O-Succinyl macrolactin A could explain the cell damage in germ tubes. This is the first report of telocinobufagin detected in B. velezensis. These results are significant for understanding the inhibitory mechanisms employed by B. velezensis and should serve as a reference in the production of biocontrol agents.
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Affiliation(s)
- Qingling Ye
- Jixian Honors College, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China;
| | - Zhupeiqi Zhong
- College of Advanced Agriculture Sciences, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China; (Z.Z.); (S.C.); (L.L.); (M.C.)
| | - Shufeng Chao
- College of Advanced Agriculture Sciences, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China; (Z.Z.); (S.C.); (L.L.); (M.C.)
| | - Lu Liu
- College of Advanced Agriculture Sciences, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China; (Z.Z.); (S.C.); (L.L.); (M.C.)
| | - Mengli Chen
- College of Advanced Agriculture Sciences, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China; (Z.Z.); (S.C.); (L.L.); (M.C.)
| | - Xiaoxiao Feng
- Agricultural Experiment Station, Zhejiang University, Hangzhou 310058, China
| | - Huiming Wu
- College of Advanced Agriculture Sciences, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China; (Z.Z.); (S.C.); (L.L.); (M.C.)
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Shinde J, Patil PB, Kavala V, Yao CF. Synthesis of unsymmetrical urea derivatives via Cu-catalysed reaction of acylazide and secondary amine. Chem Biodivers 2022; 19:e202200346. [PMID: 35773778 DOI: 10.1002/cbdv.202200346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 06/30/2022] [Indexed: 11/11/2022]
Abstract
The synthesis of unsymmetrical urea generally requires toxic reagent, solvent and harsh reaction condition. Herein, we introduce Cu-catalyzed greener and safer unsymmetrical urea derivatives synthesis in ethyl acetate. This method minimized utilization of toxic reagent. A variety of indole, amines, and azides with bis-indole successfully employed leading to high yields and gram scale synthesis of isolated urea.
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Affiliation(s)
- Jivan Shinde
- National Taiwan Normal University College of Science, Chemistry, No. 88, Section 4, Tingzhou Road, Wenshan District, Taipei City, 116, 116, Taipei City,, TAIWAN
| | - Prakash Bhimrao Patil
- National Taiwan Normal University College of Science, Chemistry, No. 88, Section 4, Tingzhou Road, Wenshan District, Taipei City, 116, 116, Taipei City,, TAIWAN
| | - Veerababurao Kavala
- National Taiwan Normal University College of Science, Chemistry, No. 88 section 4, Tingzhou Road, Taipei, TAIWAN
| | - Ching-Fa Yao
- National Taiwan Normal University, Department of Chemistry, 88, Sec. 4, Tingchow Road, 116, Taipei, TAIWAN
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Akbaba Y, Kacı FN, Göksu S. Substituted Tetrahydronaphthalen‐1‐yl‐phenethyl Ureas: Synthesis, Characterization, and Biological Evaluations. ChemistrySelect 2022. [DOI: 10.1002/slct.202200450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yusuf Akbaba
- Department of Basic Sciences Faculty of Science Erzurum Technical University 25100 Erzurum Turkey
| | - Fatma Necmiye Kacı
- Department of Molecular Biology & Genetics Faculty of Science Erzurum Technical University 25100 Erzurum Turkey
| | - Süleyman Göksu
- Department of Chemistry Faculty of Science Atatürk University 25240 Erzurum Turkey
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Singh DK, Chauthe SK, Anjanappa P, Kumar S, Arulraj RA, Gajjela R, Mohammed N, Kanthappa VT, Karmakar A, Gupta AK, Bajpai L, Bagadi M, Mathur A. Synthesis and characterization of a series of N,N'-substituted urea derivatives by using electrospray ionization tandem mass spectrometry: Differentiation of positional isomers. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e9161. [PMID: 34240514 DOI: 10.1002/rcm.9161] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 06/30/2021] [Accepted: 07/06/2021] [Indexed: 06/13/2023]
Abstract
RATIONALE Characterization of N,N'-substituted ureas was found to be challenging by nuclear magnetic resonance (NMR) spectroscopy, particularly N-di- and tri-alkylated ureas because of the absence of adjacent protons. In the present study, electrospray ionization tandem mass spectrometry has been used to differentiate positional isomeric pairs and to characterize a series of N,N'-substituted ureas, as these compounds have significant importance for drug discovery. Additionally, urea is an essential functionality in several bioactive compounds as well as a variety of clinically approved therapies. METHODS High-resolution electrospray ionization tandem mass spectrometry (ESI-HR-MS/MS) has been used to characterize a series of N,N'-substituted urea derivatives and differentiate two pairs of positional isomers. The data was acquired by Xcaliber application in positive ionization mode. RESULTS ESI-HR-MS/MS spectra of [M + H]+ ions of the positional isomeric urea derivatives 8a and 8b show distinct fragmentation patterns. For example, the MS/MS spectrum of the [M + H]+ ion of isomer 8a displays the abundant fragment ion at m/z 285.1595, which was totally absent in isomer 8b. This would be plausibly formed by the cleavage of the C-N bond of the urea group with the elimination of the isocyanate moiety. In contrast, the MS/MS spectrum of the [M + H]+ ion of isomer 8b shows an intense ion at m/z 311.1389 which is completely absent in isomer 8a which would be formed by the cleavage of the C-N bond attached to the ring nitrogen. Similarly, another pair of positional isomers, 8c and 8d, have been clearly distinguished by their fragmentation behaviour. In addition, a series of N,N'-substituted urea derivatives were studied to investigate the impact of different substitution on the fragmentation behaviour. CONCLUSIONS The present study demonstrates that ESI-HR-MS/MS can be used to differentiate pairs of N,N'-substituted urea positional isomers and characterize a series of derivatives. It was observed that a characteristic fragment ion was formed by the C-N bond cleavage with the elimination of an isocyanate moiety. The proposed mechanism of fragmentation was supported by the change in the fragmentation pathway upon alkylation of the NH. In order to generalize this fragmentation pattern, a series of N-alkylated ureas was synthesized and studied by MS/MS.
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Affiliation(s)
- Dilip Kumar Singh
- Discovery Analytical Sciences, Biocon Bristol Myers Squibb Research & Development Center (BBRC), Bangalore, India
| | - Siddheshwar Kisan Chauthe
- Discovery Analytical Sciences, Biocon Bristol Myers Squibb Research & Development Center (BBRC), Bangalore, India
| | - Prakash Anjanappa
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb Research & Development Center (BBRC), Bangalore, India
| | - Sumit Kumar
- Discovery Analytical Sciences, Biocon Bristol Myers Squibb Research & Development Center (BBRC), Bangalore, India
| | - Ruba A Arulraj
- Discovery Analytical Sciences, Biocon Bristol Myers Squibb Research & Development Center (BBRC), Bangalore, India
| | - Raju Gajjela
- Discovery Analytical Sciences, Biocon Bristol Myers Squibb Research & Development Center (BBRC), Bangalore, India
| | - Noor Mohammed
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb Research & Development Center (BBRC), Bangalore, India
| | - Venkatesh T Kanthappa
- Discovery Analytical Sciences, Biocon Bristol Myers Squibb Research & Development Center (BBRC), Bangalore, India
| | - Ananta Karmakar
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb Research & Development Center (BBRC), Bangalore, India
| | - Arun Kumar Gupta
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb Research & Development Center (BBRC), Bangalore, India
| | - Lakshmikant Bajpai
- Department of Analytical Research & Development, Biocon Bristol Myers Squibb Research & Development Center (BBRC), Bangalore, India
| | - Muralidhararao Bagadi
- Discovery Analytical Sciences, Biocon Bristol Myers Squibb Research & Development Center (BBRC), Bangalore, India
| | - Arvind Mathur
- Small Molecule Drug Discovery, Bristol Myers Squibb Research and Development, Princeton, New Jersey, USA
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9
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Zhao Y, Guo X, Si Z, Hu Y, Sun Y, Liu Y, Ji Z, You J. Hydrosilane-Assisted Synthesis of Urea Derivatives from CO 2 and Amines. J Org Chem 2020; 85:13347-13353. [PMID: 32997938 DOI: 10.1021/acs.joc.0c02032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A methodology employing CO2, amines, and phenylsilane was discussed to access aryl- or alkyl-substituted urea derivatives. This procedure was characterized by adopting hydrosilane to promote the formation of ureas directly, without the need to prepare silylamines in advance. Control reactions suggested that FeCl3 was a favorable additive for the generation of ureas, and this 1,5,7-triazabicyclo[4.4.0]dec-5-ene-catalyzed reaction might proceed through nucleophilic addition, silicon migration, and the subsequent formal substitution of silylcarbamate.
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Affiliation(s)
- Yulei Zhao
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Xuqiang Guo
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Zhiyao Si
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Yanan Hu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Ying Sun
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Yunlin Liu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Zhongyin Ji
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Jinmao You
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China.,Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810001, China
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10
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Design, synthesis, molecular docking and cytotoxic activity of novel urea derivatives of 2-amino-3-carbomethoxythiophene. J CHEM SCI 2020. [DOI: 10.1007/s12039-020-01834-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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11
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Varlamov VP, Il'ina AV, Shagdarova BT, Lunkov AP, Mysyakina IS. Chitin/Chitosan and Its Derivatives: Fundamental Problems and Practical Approaches. BIOCHEMISTRY (MOSCOW) 2020; 85:S154-S176. [PMID: 32087058 DOI: 10.1134/s0006297920140084] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this review, we present the data on the natural occurrence of chitin and its partially or fully deacetylated derivative chitosan, as well as their properties, methods of modification, and potential applications of derivatives with bactericidal, fungicidal, and antioxidant activities. The structure and physicochemical characteristics of the polymers, their functions, and features of chitin microbial synthesis and degradation, including the processes occurring in nature, are described. New data on the hydrolytic microorganisms capable of chitin degradation under extreme conditions are presented. Special attention is focused on the effect of physicochemical characteristics of chitosan, including molecular weight, degree of deacetylation, polydispersity index, and number of amino group derivatives (quaternized, succinyl, etc.) on the antimicrobial and antioxidant properties of modified polymers that can be of particular interest for biotechnology, medicine, and agriculture. Analysis of the available literature data confirms the importance of fundamental research to broaden our knowledge on the occurrence of chitin and chitosan in nature, their role in global biosphere cycles, and prospects of applied research aimed at using chitin, chitosan, and their derivatives in various aspects of human activity.
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Affiliation(s)
- V P Varlamov
- Laboratory of Biopolymer Engineering, Institute of Bioengineering, Federal Research Center "Fundamentals of Biotechnology", Russian Academy of Sciences, Moscow, 117312, Russia.
| | - A V Il'ina
- Laboratory of Biopolymer Engineering, Institute of Bioengineering, Federal Research Center "Fundamentals of Biotechnology", Russian Academy of Sciences, Moscow, 117312, Russia
| | - B Ts Shagdarova
- Laboratory of Biopolymer Engineering, Institute of Bioengineering, Federal Research Center "Fundamentals of Biotechnology", Russian Academy of Sciences, Moscow, 117312, Russia
| | - A P Lunkov
- Laboratory of Biopolymer Engineering, Institute of Bioengineering, Federal Research Center "Fundamentals of Biotechnology", Russian Academy of Sciences, Moscow, 117312, Russia
| | - I S Mysyakina
- Winogradsky Institute of Microbiology, Federal Research Center "Fundamentals of Biotechnology", Russian Academy of Sciences, Moscow, 117312, Russia
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12
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Wang CM, Du JY, Zhang JY, Tang KX, Gao TH, Xu YG, Sun LP. Regioselective bromination of aryl ureas with Phenyliodine(III) diacetate and potassium bromide. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130621] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Pandey SK, Pratap S, Tiwari MK, Marverti G, Jasinski JP. Experimental and theoretical exploration of molecular structure and anticancer properties of two N, N′–disubstituted thiocarbamide derivatives. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.08.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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14
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Zhang J, Tan W, Mi Y, Luan F, Wei L, Li Q, Dong F, Guo Z. Synthesis and Characterization of Inulin Derivatives Bearing Urea Groups with Promising Antifungal Activity. STARCH-STARKE 2018. [DOI: 10.1002/star.201800058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Jingjing Zhang
- Key Laboratory of Coastal Biology and Bioresource Utilization; Yantai Institute of Coastal Zone Research; Chinese Academy of Sciences; Yantai 264003 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Wenqiang Tan
- Key Laboratory of Coastal Biology and Bioresource Utilization; Yantai Institute of Coastal Zone Research; Chinese Academy of Sciences; Yantai 264003 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Yingqi Mi
- Key Laboratory of Coastal Biology and Bioresource Utilization; Yantai Institute of Coastal Zone Research; Chinese Academy of Sciences; Yantai 264003 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Fang Luan
- Key Laboratory of Coastal Biology and Bioresource Utilization; Yantai Institute of Coastal Zone Research; Chinese Academy of Sciences; Yantai 264003 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Lijie Wei
- Key Laboratory of Coastal Biology and Bioresource Utilization; Yantai Institute of Coastal Zone Research; Chinese Academy of Sciences; Yantai 264003 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Qing Li
- Key Laboratory of Coastal Biology and Bioresource Utilization; Yantai Institute of Coastal Zone Research; Chinese Academy of Sciences; Yantai 264003 China
| | - Fang Dong
- Key Laboratory of Coastal Biology and Bioresource Utilization; Yantai Institute of Coastal Zone Research; Chinese Academy of Sciences; Yantai 264003 China
| | - Zhanyong Guo
- Key Laboratory of Coastal Biology and Bioresource Utilization; Yantai Institute of Coastal Zone Research; Chinese Academy of Sciences; Yantai 264003 China
- University of Chinese Academy of Sciences; Beijing 100049 China
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15
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Synthesis, characterization, and the antifungal activity of chitosan derivatives containing urea groups. Int J Biol Macromol 2018; 109:1061-1067. [DOI: 10.1016/j.ijbiomac.2017.11.092] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 11/06/2017] [Accepted: 11/14/2017] [Indexed: 01/28/2023]
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Synthesis and In Vitro Antiproliferative Activity of New 1-Phenyl-3-(4-(pyridin-3-yl)phenyl)urea Scaffold-Based Compounds. Molecules 2018; 23:molecules23020297. [PMID: 29385071 PMCID: PMC6017049 DOI: 10.3390/molecules23020297] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 01/01/2018] [Accepted: 01/22/2018] [Indexed: 11/27/2022] Open
Abstract
A new series of 1-phenyl-3-(4-(pyridin-3-yl)phenyl)urea derivatives were synthesized and subjected to in vitro antiproliferative screening against National Cancer Institute (NCI)-60 human cancer cell lines of nine different cancer types. Fourteen compounds 5a–n were synthesized with three different solvent exposure moieties (4-hydroxylmethylpiperidinyl and trimethoxyphenyloxy and 4-hydroxyethylpiperazine) attached to the core structure. Substituents with different π and σ values were added on the terminal phenyl group. Compounds 5a–e with a 4-hydroxymethylpiperidine moiety showed broad-spectrum antiproliferative activity with higher mean percentage inhibition values over the 60-cell line panel at 10 µM concentration. Compound 5a elicited lethal rather than inhibition effects on SK-MEL-5 melanoma cell line, 786-0, A498, RXF 393 renal cancer cell lines, and MDA-MB-468 breast cancer cell line. Two compounds, 5a and 5d showed promising mean growth inhibitions and thus were further tested at five-dose mode to determine median inhibitory concentration (IC50) values. The data revealed that urea compounds 5a and 5d are the most active derivatives, with significant efficacies and superior potencies than paclitaxel in 21 different cancer cell lines belonging particularly to renal cancer and melanoma cell lines. Moreover, 5a and 5d had superior potencies than gefitinib in 38 and 34 cancer cell lines, respectively, particularly colon cancer, breast cancer and melanoma cell lines.
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17
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Son GM, Truong CC, Mishra DK, Mishra V, Kim YJ. One-Pot Synthesis of Disubstituted Urea from Carbon Dioxide, Propylene Oxide, and Amines Catalyzed by Imidazolium-Tetraiodoindate. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11363] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Guang Meang Son
- Department of Chemistry; Yonsei University; Seoul 120-749 Korea
| | - Cong Chien Truong
- Department of Green Process and System Engineering; Korea University of Science and Technology (UST); Cheonan 31056 Korea
| | - Dinesh Kumar Mishra
- Department of Green Process and System Engineering; Korea University of Science and Technology (UST); Cheonan 31056 Korea
| | - Vivek Mishra
- Green Material and Process R&D Group; Korea Institute of Industrial Technology (KITECH); Cheonan 31056 Korea
- Green Chemistry Network Centre, Department of Chemistry; University of Delhi; Delhi 110007 India
| | - Yong Jin Kim
- Department of Green Process and System Engineering; Korea University of Science and Technology (UST); Cheonan 31056 Korea
- Green Material and Process R&D Group; Korea Institute of Industrial Technology (KITECH); Cheonan 31056 Korea
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18
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Szczepaniak J, Cieślik W, Romanowicz A, Musioł R, Krasowska A. Blocking and dislocation of Candida albicans Cdr1p transporter by styrylquinolines. Int J Antimicrob Agents 2017; 50:171-176. [PMID: 28602766 DOI: 10.1016/j.ijantimicag.2017.01.044] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 01/20/2017] [Accepted: 01/30/2017] [Indexed: 01/10/2023]
Abstract
Styrylquinolines are a novel group of quinoline drugs that are known to have p53-independent antiproliferative activity and antiviral properties. This study evaluated the antifungal activity of these drugs more deeply, particularly their activity modulation towards Cdr1p, the main multidrug transporter of Candida albicans. Styrylquinolines were found to have antifungal activity and to work synergistically with fluconazole. Additionally, they decreased the extracellular concentration of rhodamine 6G in ABC-transporter-expressing cells. The cellular localization of GFP-tagged Cdr1p was assessed by epifluorescent microscopy. Styrylquinolines induce expression of Cdr1p, as confirmed by Western blotting. Three of four drugs tested caused the partial delocalization of transport protein to the cytoplasm. These results show the first evidence that styrylquinolines decrease the activity of ABC multidrug transporters in C. albicans.
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Affiliation(s)
| | - Wioleta Cieślik
- Institute of Chemistry, University of Silesia, Katowice, Poland
| | - Anna Romanowicz
- Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
| | - Robert Musioł
- Institute of Chemistry, University of Silesia, Katowice, Poland
| | - Anna Krasowska
- Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
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19
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Beaula TJ, Muthuraja P, Dhandapani M, Joe IH, Rastogi V, Jothy VB. Biological applications and spectroscopic investigations of 4-nitrophenol-urea dimer: A DFT approach. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2015.12.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Past, Present, and Future of Antifungal Drug Development. TOPICS IN MEDICINAL CHEMISTRY 2016. [DOI: 10.1007/7355_2016_4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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21
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Guo JL, Liu YY, Pei YZ. Synthesis and biological evaluation of 3-(piperidin-4-yl)isoxazolo[4,5-d]pyrimidine derivatives as novel PI3Kδ inhibitors. CHINESE CHEM LETT 2015. [DOI: 10.1016/j.cclet.2015.05.041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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22
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Sunduru N, Salin O, Gylfe Å, Elofsson M. Design, synthesis and evaluation of novel polypharmacological antichlamydial agents. Eur J Med Chem 2015. [PMID: 26204507 DOI: 10.1016/j.ejmech.2015.07.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Discovery of new polypharmacological antibacterial agents with multiple modes of actions can be an alternative to combination therapy and also a possibility to slow development of antibiotic resistance. In support to this hypothesis, we synthesized 16 compounds by combining the pharmacophores of Chlamydia trachomatis inhibitors and inhibitors of type III secretion (T3S) in gram-negative bacteria. In this study we have developed salicylidene acylhydrazide sulfonamides (11c &11d) as new antichlamydial agents that also inhibit T3S in Yersinia pseudotuberculosis.
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Affiliation(s)
- Naresh Sunduru
- Department of Chemistry, Umeå University, SE90187 Umeå, Sweden; Umeå Centre for Microbial Research (UCMR), SE90187 Umeå, Sweden
| | - Olli Salin
- Department of Chemistry, Umeå University, SE90187 Umeå, Sweden; Department of Clinical Microbiology, Umeå University, SE90187 Umeå, Sweden; Umeå Centre for Microbial Research (UCMR), SE90187 Umeå, Sweden
| | - Åsa Gylfe
- Department of Chemistry, Umeå University, SE90187 Umeå, Sweden; Umeå Centre for Microbial Research (UCMR), SE90187 Umeå, Sweden; Molecular Infection Medicine Sweden (MIMS), Umeå University, SE90187 Umeå, Sweden
| | - Mikael Elofsson
- Department of Chemistry, Umeå University, SE90187 Umeå, Sweden; Umeå Centre for Microbial Research (UCMR), SE90187 Umeå, Sweden.
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23
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El-Behairy MF, Mazeed TE, El-Azzouny AA, Aboul-Enein MN. Design, synthesis and antibacterial potential of 5-(benzo[d][1,3]dioxol-5-yl)-3-tert-butyl-1-substituted-4,5-dihydropyrazoles. Saudi Pharm J 2014; 23:202-9. [PMID: 25972742 PMCID: PMC4421084 DOI: 10.1016/j.jsps.2014.07.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Accepted: 07/18/2014] [Indexed: 10/25/2022] Open
Abstract
A series of 5-(benzo[d][1,3]dioxol-5-yl)-3-tert-butyl-1-substituted-4,5-dihydropyrazole derivatives 4a-e and 6a-g have been synthesized and spectrally characterized. The antibacterial activity of the novel candidates has been screened using the agar diffusion test. These compounds were endowed with high antibacterial activity against different Gram +ve and Gram -ve bacteria when compared with standard antibacterial drugs. In the light of zone of inhibition and MIC results, Sarcina and Staphylococcus aureus are the most sensitive bacteria where pyrrolidinomethanone derivative 4e showed MICs at 80 and 110 nM, respectively. While hydroxypiperidinoethanone derivative 6c showed MIC at 90 nM for Sarcina.
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Affiliation(s)
- Mohammed F El-Behairy
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Division, National Research Centre, 12622 Dokki, Giza, Egypt
| | - Tarek E Mazeed
- Chemistry of Natural and Microbial Products Department, Pharmaceutical and Drug Industries Research Division, National Research Centre, 12622 Dokki, Giza, Egypt
| | - Aida A El-Azzouny
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Division, National Research Centre, 12622 Dokki, Giza, Egypt
| | - Mohamed N Aboul-Enein
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Division, National Research Centre, 12622 Dokki, Giza, Egypt
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24
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Bektaş H, Ceylan Ş, Demirbaş N, Alpay-Karaoğlu Ş, Sökmen BB. Antimicrobial and antiurease activities of newly synthesized morpholine derivatives containing an azole nucleus. Med Chem Res 2013; 22:3629-3639. [PMID: 23807823 PMCID: PMC3685705 DOI: 10.1007/s00044-012-0318-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2012] [Accepted: 10/25/2012] [Indexed: 11/27/2022]
Abstract
2-[6-(Morpholin-4-yl)pyridin-3-ylamino]acetohydrazide (4) was obtained starting from 6-morpholin-4-ylpyridin-3-amine (2) via the formation of ester (3) and then converted to the corresponding Schiff bases (5, 6) with the reaction with aromatic aldehydes. The carbothioamide (9), obtained from the reaction of hydrazide with phenylisothiocyanate, was converted to the corresponding 1,2,4-triazole (11) and 1,3,4-thiadiazole (12) derivatives by the treatment with NaOH or H2SO4, respectively. The cyclocondenzation of 9 with 4-chlorophenacyl bromide or ethyl bromoacetate produced the corresponding 1,3-thiazole (10) or 1,3-thiazolidine derivatives (13), respectively. Antimicrobial and antiurease activities of newly synthesized compounds were investigated. Some of them were found to be active on M. smegmatis, and they displayed activity toward C. albicans and S. cerevisiae in high concentration. Compound 10 proved to be the most potent showing an enzyme inhibition activity with an IC50 = 2.37 ± 0.19 μM.
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Affiliation(s)
- Hakan Bektaş
- Department of Chemistry, Faculty of Arts and Sciences, Giresun University, 28049 Giresun, Turkey
| | - Şule Ceylan
- Department of Forest Industry Engineering, Faculty of Forest, Artvin Coruh University, 08100 Artvin, Turkey
| | - Neslihan Demirbaş
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Şengül Alpay-Karaoğlu
- Department of Biology, Faculty of Arts and Sciences, Rize University, 53100 Rize, Turkey
| | - Bahar Bilgin Sökmen
- Department of Chemistry, Faculty of Arts and Sciences, Giresun University, 28049 Giresun, Turkey
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25
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Haji Dheere AK, Yusuf N, Gee A. Rapid and efficient synthesis of [11C]ureas via the incorporation of [11C]CO2 into aliphatic and aromatic amines. Chem Commun (Camb) 2013; 49:8193-5. [DOI: 10.1039/c3cc44046j] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Kathiravan MK, Salake AB, Chothe AS, Dudhe PB, Watode RP, Mukta MS, Gadhwe S. The biology and chemistry of antifungal agents: A review. Bioorg Med Chem 2012; 20:5678-98. [PMID: 22902032 DOI: 10.1016/j.bmc.2012.04.045] [Citation(s) in RCA: 442] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2012] [Revised: 04/21/2012] [Accepted: 04/21/2012] [Indexed: 01/16/2023]
Affiliation(s)
- Muthu K Kathiravan
- Sinhgad College of Pharmacy, Department of Pharmaceutical Chemistry, Vadgaon(Bk), Pune 410041, India.
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Cao X, Xu S, Li X, Shen X, Zhang Q, Li J, Chen C. N-nitrourea derivatives as novel potential fungicides against Rhizoctonia solani: synthesis, antifungal activities, and 3D-QSAR. Chem Biol Drug Des 2012; 80:80-8. [PMID: 22284843 DOI: 10.1111/j.1747-0285.2012.01346.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
A series of N-nitrourea derivatives bearing various aryl substituents were conveniently obtained via three steps including nitration, carbamic chlorination, and aminolysis reactions. The structures of all newly synthesized compounds were characterized and confirmed by IR, ¹H-NMR, MS, and elemental analysis. The preliminary bioassays indicate that five compounds possess sufficient fungicidal activity against Rhizoctonia solani. Structure-activity relationship (SAR) is also discussed based on the experimental data, and the further quantitative structure-activity relationship (QSAR) was analyzed using comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA).
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Affiliation(s)
- Xiufang Cao
- College of Science, Huazhong Agricultural University, Wuhan 430070, China
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28
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Sanphanya K, Wattanapitayakul SK, Prangsaengtong O, Jo M, Koizumi K, Shibahara N, Priprem A, Fokin VV, Vajragupta O. Synthesis and evaluation of 1-(substituted)-3-prop-2-ynylureas as antiangiogenic agents. Bioorg Med Chem Lett 2012; 22:3001-5. [PMID: 22414612 DOI: 10.1016/j.bmcl.2012.02.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Revised: 01/20/2012] [Accepted: 02/10/2012] [Indexed: 10/28/2022]
Abstract
Novel urea derivatives of alkynes have been designed, synthesized, and evaluated as potential cancer therapeutics leads. The most active 1-((3-chloromethyl)phenyl)-3-prop-2-ynylurea (1) exhibited cytotoxic effect against HELA and MCF-7 cell lines with IC(50) values of 1.55 μM and 1.48 μM, respectively. Further investigation on tube formation assay in human vein umbilical cells (HUVEC) demonstrated that 1 and methyl 4-(3-(3-ethynylureido)benzyloxy) benzoate (6) possess antiangiogenic activity, with minimum effective dose of 25 nM (for 1) and 6.25 μM (for 6). The ED(50) of 1 and 6 were found to be 0.26 μM and 17.52 μM, respectively. The results from in vitro tyrosine kinase assay indicated the EGFR inhibition of 1 over other kinases (VEGFR2, FGFR1 and PDGFRβ). The cytotoxicity of 1 against EGFR overexpressing cell line A431 (IC(50) 36 nM) was comparable to that of erlotinib. The binding mode of 1 from docking simulation in the EGFR active site revealed that the urea motif formed hydrogen bonding with Lys745, Thr854 and Asp855 in hydrophobic pocket of EGFR. Compound 1 is considered as a potential lead for further optimization.
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Affiliation(s)
- Kingkan Sanphanya
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
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29
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Pei S, Li J, Qu B, Hai L, Wu Y. N-(2,3,4-Trifluorophenyl)pyrrolidine-1-carboxamide. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o12. [PMID: 22259407 PMCID: PMC3254353 DOI: 10.1107/s1600536811051385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2011] [Accepted: 11/29/2011] [Indexed: 11/29/2022]
Abstract
In the title compound, C11H11F3N2O, a urea derivative, the best plane through the pyrrole ring makes a dihedral angle of 9.69 (13)° with the benzene ring. The amino H atom is shielded, so that it is not involved in any hydrogen-bonding interactions.
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30
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Jie L, Shuchen P, Li H, Yong W. N-(2,3,4-Trifluoro-phen-yl)morpholine-4-carboxamide. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o13. [PMID: 22259417 PMCID: PMC3254354 DOI: 10.1107/s1600536811051300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2011] [Accepted: 11/29/2011] [Indexed: 05/31/2023]
Abstract
In title mol-ecule, C(11)H(11)F(3)N(2)O(2), the central -N-C(=O)-N- unit is essentially planar [maximum deviation = 0.013 (2) Å] and forms a dihedral angle of 57.33 (9)° with the benzene ring. The morpholine ring is in a chair conformation. In the crystal, mol-ecules are linked into chains along [001] by N-H⋯O hydrogen bonds.
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Affiliation(s)
- Li Jie
- Key Laboratory of Drug Targeting of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, People’s Republic of China
| | - Pei Shuchen
- Key Laboratory of Drug Targeting of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, People’s Republic of China
| | - Hai Li
- Key Laboratory of Drug Targeting of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, People’s Republic of China
| | - Wu Yong
- Key Laboratory of Drug Targeting of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, People’s Republic of China
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31
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Bai Z, Wei Z, Wang Y, Xu S, Li X, Chen C, Cao X. Cycloalkyl substituted N-nitrourea derivatives: a convenient synthesis and biological evaluation. RESEARCH ON CHEMICAL INTERMEDIATES 2011. [DOI: 10.1007/s11164-011-0293-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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32
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Sridharan V, Suryavanshi PA, Menéndez JC. Advances in the chemistry of tetrahydroquinolines. Chem Rev 2011; 111:7157-259. [PMID: 21830756 DOI: 10.1021/cr100307m] [Citation(s) in RCA: 797] [Impact Index Per Article: 56.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Vellaisamy Sridharan
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, Madrid, Spain
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