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Rahimizadeh F, Mazloumi M, Shirini F. An efficient catalysis for the synthesis of pyrimido[1,2- a]benzimidazoles and 1-(benzothiazolylamino)methyl-2-naphthols using ZnO@SO 3H@Tropine. RSC Adv 2024; 14:13452-13462. [PMID: 38665495 PMCID: PMC11043802 DOI: 10.1039/d3ra08960f] [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: 12/31/2023] [Accepted: 03/30/2024] [Indexed: 04/28/2024] Open
Abstract
In this research and in the line of our researches on the use of nano-substrates modified with ionic liquid in organic reactions, an efficient and green method for the one-pot three-component synthesis of pyrimido[1,2-a]benzimidazole and 1-(benzothiazolylamino)methyl-2-naphthol derivatives is reported using a new nanoporous catalyst formulated as ZnO@SO3H@Tropine. Further analysis of the catalyst for its characterization has been performed using thermal gravimetric analysis (TGA), field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), energy dispersive spectrometer (EDS) and Fourier-transform infrared spectroscopy (FT-IR). The present approach creates a variety of biologically active heterocyclic compounds with excellent yields and short reaction times. Among the other advantages of the current method are: ease of operation, clean reaction profiles and ease of separation. Also, this catalyst can be reused five times without loss of its catalytic activity.
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Affiliation(s)
- Fatemeh Rahimizadeh
- Department of Chemistry, College of Science, University of Guilan Rasht 41335-19141 Iran +98 131 3233262 +98 131 3233262
| | - Masoumeh Mazloumi
- Department of Chemistry, College of Science, University of Guilan Rasht 41335-19141 Iran +98 131 3233262 +98 131 3233262
| | - Farhad Shirini
- Department of Chemistry, College of Science, University of Guilan Rasht 41335-19141 Iran +98 131 3233262 +98 131 3233262
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2
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Gadde S, Kleynhans A, Holien JK, Bhadbhade M, Nguyen PLD, Mittra R, Yu TT, Carter DR, Parker MW, Marshall GM, Cheung BB, Kumar N. Pyrimido[1,2-a]benzimidazoles as inhibitors of oncoproteins ubiquitin specific protease 5 and MYCN in the childhood cancer neuroblastoma. Bioorg Chem 2023; 136:106462. [PMID: 37060785 DOI: 10.1016/j.bioorg.2023.106462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 02/16/2023] [Accepted: 03/07/2023] [Indexed: 03/31/2023]
Abstract
The MYCN oncogene and histone deacetylases (HDACs) are key driver genes in the childhood cancer, neuroblastoma. We recently described a novel pyridobenzimidazole analogue, SE486-11, which enhanced the therapeutic effectiveness of HDAC inhibitors by increasing MYCN ubiquitination through effects on the deubiquitinase, ubiquitin-specific protease 5 (USP5). Here we describe the synthesis of a novel series of pyrimido[1,2-a]benzimidazole derivatives, and an evaluation of their cytopathic effects against non-malignant and human neuroblastoma cell lines. Among the tested analogues, 4-(4-methoxyphenyl)benzo[4,5]imidazo[1,2-a]pyrimidine (3a) was the most active compound against neuroblastoma cells (IC50 ≤ 2 µM), with low cytotoxicity (IC50 ≥ 15 µM) to normal cells. We show compound 3a bound to USP5 protein (Kd = 0.47 µM) in vitro and synergistically enhanced the efficacy of HDAC inhibitors against neuroblastoma cells. Moreover, knockdown of USP5 and MYCN in treated neuroblastoma cells showed that both USP5 and MYCN expression was necessary for the cytopathic activity of compound 3a, thus providing a clinically relevant rationale for further development of this of pyrimido[1,2-a]benzimidazole.
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Affiliation(s)
- Satyanarayana Gadde
- School of Chemistry, UNSW Sydney, NSW 2052, Australia; Children's Cancer Institute Australia for Medical Research, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Ane Kleynhans
- Children's Cancer Institute Australia for Medical Research, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Jessica K Holien
- School of Science, STEM College, RMIT University, Melbourne, VIC 3001, Australia
| | | | | | - Ritu Mittra
- Children's Cancer Institute Australia for Medical Research, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia
| | - Tsz Tin Yu
- School of Chemistry, UNSW Sydney, NSW 2052, Australia
| | - Daniel R Carter
- Children's Cancer Institute Australia for Medical Research, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia; School of Biomedical Engineering, University of Technology Sydney, Australia
| | - Michael W Parker
- School of Science, STEM College, RMIT University, Melbourne, VIC 3001, Australia
| | - Glenn M Marshall
- Children's Cancer Institute Australia for Medical Research, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia; Kids Cancer Centre, Sydney Children's Hospital, Randwick, NSW, Australia.
| | - Belamy B Cheung
- Children's Cancer Institute Australia for Medical Research, Lowy Cancer Research Centre, UNSW Sydney, Kensington, NSW 2052, Australia; School of Clinical Medicine, UNSW Medicine & Health, UNSW Sydney, NSW, Australia.
| | - Naresh Kumar
- School of Chemistry, UNSW Sydney, NSW 2052, Australia.
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3
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Gajjala RR, Chinta RR, Gopireddy VSR, Poola S, Balam SK, Chintha V, Pasupuleti VR, Avula VKR, Vallela S, Vasilievich Zyryanov G, Cirandur SR. Ethyl-4-(aryl)-6-methyl-2-(oxo/thio)-3,4-dihydro-1H-pyrimidine-5-carboxylates: Silica supported bismuth(III)triflate catalyzed synthesis and antioxidant activity. Bioorg Chem 2022; 129:106205. [DOI: 10.1016/j.bioorg.2022.106205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/06/2022] [Accepted: 10/08/2022] [Indexed: 11/02/2022]
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4
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Dashteh M, Baghery S, Zolfigol MA, Khazaei A, Khajevand M. Application of New Magnetic Graphene Oxide‐Porphyrin Nanoparticles for Synthesis of Pyridines and Pyrimidines
via
Anomeric‐Based Oxidation. ChemistrySelect 2022. [DOI: 10.1002/slct.202202300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mohammad Dashteh
- Department of Organic Chemistry Faculty of Chemistry Bu-Ali Sina University Hamedan 6517838683 Iran
| | - Saeed Baghery
- Department of Organic Chemistry Faculty of Chemistry Bu-Ali Sina University Hamedan 6517838683 Iran
| | - Mohammad Ali Zolfigol
- Department of Organic Chemistry Faculty of Chemistry Bu-Ali Sina University Hamedan 6517838683 Iran
| | - Ardeshir Khazaei
- Department of Organic Chemistry Faculty of Chemistry Bu-Ali Sina University Hamedan 6517838683 Iran
| | - Masuood Khajevand
- Department of Physical Chemistry Faculty of Chemistry Bu-Ali Sina University Hamedan Iran
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5
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Cao S, Li H, Teng X, Si H, Chen R, Zhu Y. Access to Fully Substituted Dihydropyrimidines via Dual Copper/Photoredox‐Catalyzed Domino Annulation of Oxime Esters and Imines. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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6
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Sajadikhah SS, Liravi-Deylami B. Green Synthesis of Benzoimidazopyrimidine, Benzimidazoloquinazolinone,
Triazolopyrimidine and Triazoloquinazolinone Derivatives Catalyzed by
Oxalic Acid Dihydrate. LETT ORG CHEM 2022. [DOI: 10.2174/1570178618666210506120228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
Benzoimidazopyrimidine, benzimidazoloquinazolinone, triazolopyrimidine, and triazoloquinazolinone
derivatives were synthesized via a one-pot multi-component reaction in the presence of
a catalytic amount of oxalic acid dihydrate. The reactions were performed in the mixture of EtOH:H2O
or under solvent-free conditions as green media. The advantageous features of these methodologies are
inexpensive starting materials and catalyst, high atom economy and good yields, and metal-free synthesis.
Moreover, all the products were obtained by simple filtration, and no need for column chromatography
or tedious separation procedures, which is very important in terms of reducing environmental
pollutions.
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Affiliation(s)
- Seyed Sajad Sajadikhah
- Department of Chemistry, Payame Noor University (PNU), P.O. Box 19395-3697, Tehran, Iran
| | - Bagher Liravi-Deylami
- Department of Chemistry, Payame Noor University (PNU), P.O. Box 19395-3697, Tehran, Iran
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Basyouni WM, Abbas SY, Abdelazeem NM, El-Bayouki KAM, El-Kady MY. Synthesis of Novel Diastereomer Pyrimido[1,2-a]Benzimidazoles by Using Silica Sulfuric Acid/Ethylene Glycol. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2026987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Wahid M. Basyouni
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Samir Y. Abbas
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Nagwa M. Abdelazeem
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Khairy A. M. El-Bayouki
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Mohamed Y. El-Kady
- Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
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8
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Rahman AAHA, Shaban AKF, Nassar IF, Yousif MNM, El-Kady DS, Awad HM, El-Sayed WA. Synthesis and Anticancer Activity of New Pyrimidine and Oxadiazole Acyclic Nucleoside Analogs and Thiazolopyrimidine Derivatives. RUSS J GEN CHEM+ 2021. [DOI: 10.1134/s1070363221100261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Dinh Dang MH, Ho Thuy Nguyen L, Thi Thu Nguyen T, Xuan Dat Mai N, Hoang Tran P, Le Hoang Doan T. Using sulfate-functionalized Hf-based metal–organic frameworks as a heterogeneous catalyst for solvent-free synthesis of pyrimido[1,2-a]benzimidazoles via one-pot three-component reaction. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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10
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Al-Mahmoudy A, Hassan A, Ibrahim T, Youssif B, Taher E, Tantawy M, Abdel-Aal E, Osman N. Novel Benzyloxyphenyl Pyrimidine-5-Carbonitrile Derivatives as Potential Apoptotic Antiproliferative Agents. Anticancer Agents Med Chem 2021; 22:978-990. [PMID: 34126912 DOI: 10.2174/1871520621666210612043812] [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: 12/18/2020] [Revised: 04/29/2021] [Accepted: 05/02/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Pyrimidine-5-carbonitrile had a broad spectrum of biological activities such as antiviral, antioxidant and anticancer activity. Among similar compounds, monastrol being the most prominent due to cell-permeant inhibitor of mitosis therefore, we investigated the new Pyrimidine-5-carbonitrile as a cytotoxic agent for p53 pathway. OBJECTIVE Several new benzyloxyphenyl pyrimidine-5-carbonitrile derivatives were designed, synthesized, characterized, and their cytotoxicity was evaluated. The most active compounds were tested for their activity against p53 as a mechanistic target for antiproliferative action. METHOD The key intermediate tetrahydropyrimidine-5-carbonitrile derivative 4 was prepared by a multicomponent reaction (MCR) of Biginelli type. S-alkylation of the key intermediate with the required alkyl or aralkyl halides or refluxing 4 with POCl3 followed by an amino acid yielded the target compounds. The cytotoxicity of 5c-e, 7a-c, 9, 10a, b and 11 was evaluated using A549 cell line of human lung adenocarcinoma, HepG2 liver cell line, and MDA-MB-231 cell line of breast cancer using the MTT assay. The transcription effects of 7a, 7c, and 11 on the p53 were assessed and compared with the reference doxorubicin. RESULTS Compounds 7a, 7c, and 11 have the highest cytotoxic effect when applied to most cancer cells. The tested compounds with 5-FU showed a significant increase in the anticancer activity more than 5-FU alone. Compounds 7a, 7c, and 11 increased the level of active caspase 3 by 4-6-fold, compared to untreated control cells in human liver cancer cell line (HepG2). Compounds 7a, 7c, and 11 increase the levels of caspase 8 and 9, indicating activation of both intrinsic and extrinsic pathways and showed potent induction of Bax, down-regulation of Bcl-2 protein levels and over-expression of Cytochrome C levels in HepG2 cell lines. Compound 11 exhibited cell cycle arrest at the Pre-G1 and G2/M phases in the cell cycle analysis of HepG2 cell line. The results revealed an increase of 12.40-19.10 in p53 level compared to the test cells and that p53 protein level of 7a, 7c, and 11 was significantly inductive (636, 861 and 987 pg/mL, respectively) in relation to doxorubicin (1263 pg/mL). CONCLUSION Pyrimidine-5-carbonitrile derivatives have potent apoptotic and antiproliferative properties.
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Affiliation(s)
- Amany Al-Mahmoudy
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, 44519. Egypt
| | - Alaa Hassan
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, 44519. Egypt
| | - Tarek Ibrahim
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589. Saudi Arabia
| | - Bahaa Youssif
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut 71526. Egypt
| | - Ehab Taher
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Al-Azhar University, 71524, Assiut. Egypt
| | - Mohamed Tantawy
- Hormones Department, Medical Research Division, National Research Centre, Dokki, Giza. Egypt
| | - Eatedal Abdel-Aal
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, 44519. Egypt
| | - Nermine Osman
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, 44519. Egypt
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11
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Pyrimido[1,2- a]benzimidazoles: synthesis and perspective of their pharmacological use. Chem Heterocycl Compd (N Y) 2021; 57:383-409. [PMID: 34024913 PMCID: PMC8121645 DOI: 10.1007/s10593-021-02916-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 01/12/2021] [Indexed: 01/26/2023]
Abstract
The review presents data on the synthesis as well as studies of biological activity of new derivatives of pyrimido[1,2-a]benzimidazoles published over the last decade. The bibliography of the review includes 136 sources.
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12
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Anamika, Yadav CL, Drew MGB, Kumar K, Singh N. Ferrocene-Functionalized Dithiocarbamate Zinc(II) Complexes as Efficient Bifunctional Catalysts for the One-Pot Synthesis of Chromene and Imidazopyrimidine Derivatives via Knoevenagel Condensation Reaction. Inorg Chem 2021; 60:6446-6462. [PMID: 33881858 DOI: 10.1021/acs.inorgchem.1c00162] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Four new mononuclear/coordination polymeric (CP) zinc(II) complexes (1-4) of ferrocenyl/pyridyl-functionalized dithiocarbamate ligands, N-ferrocenylmethyl-N-butyl dithiocarbamate (L1), N-ferrocenylmethyl-N-ethylmorpholine dithiocarbamate (L2), N-ferrocenylmethyl-N-2-(diethylamino)ethylamine dithiocarbamate (L3), and N-4-methoxybenzyl-N-3-methylpyridyl dithiocarbamate (L4), have been synthesized and characterized by elemental analyses, IR, UV-vis, and 1H and 13C{1H} NMR spectroscopic techniques. The solid-state structures of complexes 1, 3, and 4 have been determined by single-crystal X-ray crystallography as well as powder X-ray diffraction. Single-crystal X-ray crystallography revealed a monomeric structure for complex 1 but 1D polymeric structures for complexes 3 and 4. In all complexes, dithiocarbamate ligands are bonded to the Zn(II) metal ion in a S^S chelating mode, and in the CPs, N atoms on the 2-(diethylamino)ethylamine and 3-pyridyl functionalities in the ligands on the neighboring molecules are also bonded to metal centers, leading to the formation of either a discrete tetrahedral molecule in 1 or 1D CP structures in 3 and 4. The Zn(II) metal centers in the polymeric structures exhibited either square-pyramidal or octahedral geometries. The supramolecular structures in these complexes are sustained via C-H···π (ZnCS2, chelate; 3 and 4), C-H···π, and H···H interactions. The catalytic performances of complexes have also been assessed in the Knoevenagel condensation and one-pot multicomponent reactions. Catalysis results showed that the CP 3 acts as a heterogeneous bifunctional catalyst with excellent transformation efficiency at low catalyst loading.
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Affiliation(s)
- Anamika
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Chote Lal Yadav
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Michael G B Drew
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - Kamlesh Kumar
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Nanhai Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
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13
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Nguyen TK, Titov GD, Khoroshilova OV, Kinzhalov MA, Rostovskii NV. Light-induced one-pot synthesis of pyrimidine derivatives from vinyl azides. Org Biomol Chem 2021; 18:4971-4982. [PMID: 32558855 DOI: 10.1039/d0ob00693a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A one-pot procedure for the synthesis of tetrasubstituted dihydropyrimidine and pyrimidine derivatives from α-azidocinnamates was developed. The synthesis is based on the finding that the outcome of LED photolysis of α-azidocinnamates depends on the light wavelength employed. Blue light (455 nm) leads to the formation of 2H-azirines only, but violet light (395 nm), UV-A light (365 nm), or sunlight result in the transformation of the in situ formed 2H-azirines to 1,3-diazabicyclo[3.1.0]hex-3-enes. Under basic catalysis (DBU), the latter were isomerized to 1,6-dihydropyrimidines which were oxidized to pyrimidines using DDQ. A successful use of Cs2CO3 as a base and air as an oxidant was also demonstrated.
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Affiliation(s)
- Tuan K Nguyen
- Saint Petersburg State University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034 Russian Federation.
| | - Gleb D Titov
- Saint Petersburg State University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034 Russian Federation.
| | - Olesya V Khoroshilova
- Saint Petersburg State University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034 Russian Federation.
| | - Mikhail A Kinzhalov
- Saint Petersburg State University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034 Russian Federation.
| | - Nikolai V Rostovskii
- Saint Petersburg State University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034 Russian Federation.
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14
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Mardazad N, Khorshidi A, Fallah Shojaei A. Efficient one-pot synthesis and dehydrogenation of tricyclic dihydropyrimidines catalyzed by OMS-2-SO 3H, and application of the functional-chromophore products as colorimetric chemosensors. RSC Adv 2021; 11:12349-12360. [PMID: 35423781 PMCID: PMC8697086 DOI: 10.1039/d1ra01005k] [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: 02/06/2021] [Accepted: 03/23/2021] [Indexed: 11/04/2022] Open
Abstract
An efficient and convenient one-pot multicomponent reaction (MCR) for the synthesis and dehydrogenation of tricyclic dihydropyrimidine derivatives, catalyzed by –SO3H functionalized octahedral manganese oxide molecular sieves (OMS-2-SO3H) as a novel solid acid catalyst, is reported. All of the organic products and the catalyst were unambiguously characterized with conventional techniques including Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction analysis (XRD), 1H NMR, and 13C NMR spectroscopy. The targeted dehydrogenated chromophore compounds were successfully used as colorimetric chemosensors for detection of transition metals in aqueous solution. For example, 1-[4-(4-hydroxy-3-methoxy-phenyl)-2-methyl-benzo[4,5]imidazo[1,2-a]pyrimidin-3-yl]-ethanone (7d), exhibited high sensitivity and selectivity toward detection of Cr3+ over a panel of other transition metal cations. The interference of foreign ions was found to be negligible. It was found that a 1 : 1 complex of Cr3+ and 7d is responsible for the color change of the solution from ochre to brown. These newly devised chemosensors can also exhibit significant wavelength shifts (up to 100 nm) when used as pH indicators. 7d for example, showed a vivid and sharp color change from pink to yellow in the pH range of 4 to 6. Hyperconjugated products of dihydropyrimidines may act as colorimetric chemosensors.![]()
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Affiliation(s)
- Neda Mardazad
- Department of Chemistry
- Faculty of Sciences
- University of Guilan
- Rasht
- Iran
| | - Alireza Khorshidi
- Department of Chemistry
- Faculty of Sciences
- University of Guilan
- Rasht
- Iran
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El‐serwy WS, Mohamed HS, El‐serwy WS, Mohamed NA, Kassem EMM, Mahmoud K, Nossier ES. Thiopyrimidine‐5‐carbonitrile Derivatives as VEGFR‐2 Inhibitors: Synthesis, Anticancer Evaluation, Molecular Docking, ADME Predictions and QSAR Studies. ChemistrySelect 2020. [DOI: 10.1002/slct.202002566] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Walaa S. El‐serwy
- Department of Therapeutic Chemistry Pharmaceutical and Drug Industries Research Division, National Research Centre Dokki, Giza 12622 Egypt
| | - Hanaa S. Mohamed
- Department of Therapeutic Chemistry Pharmaceutical and Drug Industries Research Division, National Research Centre Dokki, Giza 12622 Egypt
| | - Weam S. El‐serwy
- Chemistry of Natural and Microbial Products Department Pharmaceutical and Drug Industries Research Division, National Research Centre Dokki, Giza 12622 Egypt
| | - Neama A. Mohamed
- Department of Therapeutic Chemistry Pharmaceutical and Drug Industries Research Division, National Research Centre Dokki, Giza 12622 Egypt
| | - Emad M. M. Kassem
- Department of Therapeutic Chemistry Pharmaceutical and Drug Industries Research Division, National Research Centre Dokki, Giza 12622 Egypt
| | - Khaled Mahmoud
- Department of Pharmacognosy National Research Centre, Dokki Giza 12622 Egypt
| | - Eman S. Nossier
- Pharmaceutical Medicinal Chemistry Department, Faculty of Pharmacy Al-Azhar University (Girls) Cairo 11754 Egypt
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16
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Akbari A, Dekamin MG, Yaghoubi A, Naimi-Jamal MR. Novel magnetic propylsulfonic acid-anchored isocyanurate-based periodic mesoporous organosilica (Iron oxide@PMO-ICS-PrSO 3H) as a highly efficient and reusable nanoreactor for the sustainable synthesis of imidazopyrimidine derivatives. Sci Rep 2020; 10:10646. [PMID: 32606381 PMCID: PMC7327082 DOI: 10.1038/s41598-020-67592-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 06/11/2020] [Indexed: 11/30/2022] Open
Abstract
In this study, preparation and characterization of a new magnetic propylsulfonic acid-anchored isocyanurate bridging periodic mesoporous organosilica (Iron oxide@PMO-ICS-PrSO3H) is described. The iron oxide@PMO-ICS-PrSO3H nanomaterials were characterized by Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy and field emission scanning electron microscopy as well as thermogravimetric analysis, N2 adsorption–desorption isotherms and vibrating sample magnetometer techniques. Indeed, the new obtained materials are the first example of the magnetic thermally stable isocyanurate-based mesoporous organosilica solid acid. Furthermore, the catalytic activity of the Iron oxide@PMO-ICS-PrSO3H nanomaterials, as a novel and highly efficient recoverable nanoreactor, was investigated for the sustainable heteroannulation synthesis of imidazopyrimidine derivatives through the Traube–Schwarz multicomponent reaction of 2-aminobenzoimidazole, C‒H acids and diverse aromatic aldehydes. The advantages of this green protocol are low catalyst loading, high to quantitative yields, short reaction times and the catalyst recyclability for at least four consecutive runs.
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Affiliation(s)
- Arezoo Akbari
- Pharmaceutical and Heterocyclic Compounds Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 1684613114, Iran
| | - Mohammad G Dekamin
- Pharmaceutical and Heterocyclic Compounds Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 1684613114, Iran.
| | - Amene Yaghoubi
- Pharmaceutical and Heterocyclic Compounds Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 1684613114, Iran
| | - Mohammad Reza Naimi-Jamal
- Pharmaceutical and Heterocyclic Compounds Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 1684613114, Iran
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17
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Kaur G, Kaur H, Singh A, Chaudhary M, Kaur N, Singh N, Jena KC. Multifunctional Receptor with Tunable Selectivity: A Comparative Recognition Profile of Organic Nanoparticles with Carbon Dots. Chem Asian J 2020; 15:2160-2165. [PMID: 32472609 DOI: 10.1002/asia.202000523] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/25/2020] [Indexed: 01/27/2023]
Abstract
The exponential growth in the research field of water pollution control demands the evolution of novel sensing materials for regulation and quantification of metals ions. Within this context, the current work reports a new strategy for the synthesis of carbon dots from the hydrothermal treatment of organic nanoparticles. The organic nanoparticles are found to be selective towards Cs(I) ions with a detection limit of 5.3 nM, whereas the highly fluorescent carbon dots are found to be selective towards Ag(I) ions with a detection limit of 4.8 nM. Both sensing systems illustrate rapid sensing with a working pH range from 4-9. The interfacial molecular restructuring of the sensing systems in the aqueous phase has been investigated in the absence and presence of targeted metal ions using a sum frequency generation vibrational spectroscopic tool. The practical applicability of the sensors was checked in environmental samples. This work opens new avenues for the exploration of temperature-guided sensing modulation in nanomaterials.
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Affiliation(s)
- Gaganpreet Kaur
- Centre for Nanoscience & Nanotechnology, Panjab University, Chandigarh, 160014, India.,Department of Chemistry, Multani Mal Modi College, Patiala, Punjab, 147001, India
| | - Harpreet Kaur
- Department of Physics, Indian Institute of Technology Ropar, Punjab, 140001, India
| | - Amanpreet Singh
- Department of Chemistry, Indian Institute of Technology Ropar, Punjab, 140001, India
| | - Monika Chaudhary
- Center for Biomedical Engineering, Indian Institute of Technology Ropar, Punjab, 140001, India
| | - Navneet Kaur
- Centre for Nanoscience & Nanotechnology, Panjab University, Chandigarh, 160014, India.,Department of Chemistry, Panjab University, Chandigarh, 160014, India
| | - Narinder Singh
- Department of Chemistry, Indian Institute of Technology Ropar, Punjab, 140001, India
| | - Kailash C Jena
- Department of Physics, Indian Institute of Technology Ropar, Punjab, 140001, India.,Center for Biomedical Engineering, Indian Institute of Technology Ropar, Punjab, 140001, India
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18
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Basyouni WM, Abdelazeem NM, Abbas SY, El-Bayouki KAM, El-kady MY. Silica Sulfuric Acid/Ethylene Glycol: An Efficient Eco-Friendly Catalyst for One-Pot Synthesis of New Benzo[4,5]imidazo[1,2-a]pyrimidines. ORG PREP PROCED INT 2020. [DOI: 10.1080/00304948.2020.1761692] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Wahid M. Basyouni
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Nagwa M. Abdelazeem
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Samir Y. Abbas
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Khairy A. M. El-Bayouki
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Mohamed Y. El-kady
- Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
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19
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Basirat N, Sajadikhah SS, Zare A. Ionic liquid-catalyzed synthesis of triazoloquinazolinones, chromeno[4,3-d]benzothiazolopyrimidines and benzoimidazopyrimidine derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04151-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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20
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Verma P, Pal S, Chauhan S, Mishra A, Sinha I, Singh S, Srivastava V. Starch functionalized magnetite nanoparticles: A green, biocatalyst for one-pot multicomponent synthesis of imidazopyrimidine derivatives in aqueous medium under ultrasound irradiation. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127410] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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21
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Hamidinasab M, Bodaghifard MA, Mobinikhaledi A. Synthesis of new, vital and pharmacologically important bis phthalazine-triones using an efficient magnetic nanocatalyst and their HF and NBO investigation. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127091] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Design, synthesis, and bioactivity of dihydropyrimidine derivatives as kinesin spindle protein inhibitors. Bioorg Med Chem 2019; 27:115126. [DOI: 10.1016/j.bmc.2019.115126] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 09/12/2019] [Accepted: 09/18/2019] [Indexed: 12/19/2022]
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23
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Novel benzothiazole containing 4H-pyrimido[2,1-b]benzothiazoles derivatives: One pot, solvent-free microwave assisted synthesis and their biological evaluation. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2016.01.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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24
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Hosseinnejad T, Omrani-Pachin M, Heravi MM. Joint Computational and Experimental Investigations on the Synthesis and Properties of Hantzsch-type Compounds: An Overview. CURR ORG CHEM 2019. [DOI: 10.2174/1385272823666190808110837] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In this review, we try to highlight the significance, mechanism propositions, computational and experimental assessments of Hantzsch dihydropyridine (DHPs) which readily oxidized to the corresponding pyridines as one of the most important aromatic heterocycles. We also try to give an overview to its ability in transfer hydrogenation, acting as hydride donors from computational and experimental points of view. Our survey is also extended to computational assessments on the structural and biological properties of Hantzsch DHPs.
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Affiliation(s)
- Tayebeh Hosseinnejad
- Department of Chemistry, Faculty of Physics & Chemistry, Alzahra University, Tehran, Iran
| | - Marzieh Omrani-Pachin
- Department of Chemistry, Faculty of Physics & Chemistry, Alzahra University, Tehran, Iran
| | - Majid M. Heravi
- Department of Chemistry, Faculty of Physics & Chemistry, Alzahra University, Tehran, Iran
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25
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Devineni SR, Madduri TR, Chamarthi NR, Liu CQ, Pavuluri CM. An efficient microwave-promoted three-component synthesis of thiazolo[3,2-a]pyrimidines catalyzed by SiO2–ZnBr2 and antimicrobial activity evaluation. Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02452-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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26
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Hamidinasab M, Mobinikhaledi A. Organoacid-Decorated NiFe2
O4
Nanoparticles: An Efficient Catalyst for Green Synthesis of 2H
-Indazolo[2, 1-b]phthalazine-Triones and Pyrimido[1,2-a]benzimidazoles. ChemistrySelect 2019. [DOI: 10.1002/slct.201802413] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mahdia Hamidinasab
- Department of Chemistry; Faculty of Science; Arak University; Arak 38156-88138 Iran
- Institute of Nanosciences and Nanotechnology; Arak University; Arak 38156-88138 Iran
| | - Akbar Mobinikhaledi
- Department of Chemistry; Faculty of Science; Arak University; Arak 38156-88138 Iran
- Institute of Nanosciences and Nanotechnology; Arak University; Arak 38156-88138 Iran
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27
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Murlykina MV, Morozova AD, Zviagin IM, Sakhno YI, Desenko SM, Chebanov VA. Aminoazole-Based Diversity-Oriented Synthesis of Heterocycles. Front Chem 2018; 6:527. [PMID: 30555815 PMCID: PMC6282055 DOI: 10.3389/fchem.2018.00527] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 10/11/2018] [Indexed: 02/02/2023] Open
Abstract
The comprehensive review contains the analysis of literature data concerning reactions of heterocyclization of aminoazoles and demonstrates the application of these types of transformations in diversity-oriented synthesis. The review is oriented to wide range of chemists working in the field of organic synthesis and both experimental and theoretical studies of nitrogen-containing heterocycles.
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Affiliation(s)
- Maryna V Murlykina
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals", National Academy of Sciences of Ukraine (NAS), Kharkiv, Ukraine
| | - Alisa D Morozova
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals", National Academy of Sciences of Ukraine (NAS), Kharkiv, Ukraine
| | - Ievgen M Zviagin
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals", National Academy of Sciences of Ukraine (NAS), Kharkiv, Ukraine
| | - Yana I Sakhno
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals", National Academy of Sciences of Ukraine (NAS), Kharkiv, Ukraine
| | - Sergey M Desenko
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals", National Academy of Sciences of Ukraine (NAS), Kharkiv, Ukraine.,Chemistry Faculty, Karazin Kharkiv National University, Kharkiv, Ukraine
| | - Valentyn A Chebanov
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals", National Academy of Sciences of Ukraine (NAS), Kharkiv, Ukraine.,Chemistry Faculty, Karazin Kharkiv National University, Kharkiv, Ukraine
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28
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MgO NPs Catalyzed Eco‐friendly Reaction: A Highly Effective and Green Approach for the Multicomponent One‐pot Synthesis of Polysubstituted Pyridines using 2‐Aminobenzothiazole. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3384] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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29
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Mostafa AS, Selim KB. Synthesis and anticancer activity of new dihydropyrimidinone derivatives. Eur J Med Chem 2018; 156:304-315. [DOI: 10.1016/j.ejmech.2018.07.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 07/01/2018] [Accepted: 07/02/2018] [Indexed: 10/28/2022]
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30
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Koronatov AN, Rostovskii NV, Khlebnikov AF, Novikov MS. Rh(II)-Catalyzed Ring Expansion of Pyrazoles with Diazocarbonyl Compounds as a Method for the Preparation of 1,2-Dihydropyrimidines. J Org Chem 2018; 83:9210-9219. [DOI: 10.1021/acs.joc.8b01228] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexander N. Koronatov
- St. Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Nikolai V. Rostovskii
- St. Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Alexander F. Khlebnikov
- St. Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Mikhail S. Novikov
- St. Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
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31
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Design, Synthesis, Anticancer Evaluation and Docking Studies of Novel Heterocyclic Derivatives Obtained via Reactions Involving Curcumin. Molecules 2018; 23:molecules23061398. [PMID: 29890691 PMCID: PMC6099980 DOI: 10.3390/molecules23061398] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Revised: 05/24/2018] [Accepted: 06/02/2018] [Indexed: 12/20/2022] Open
Abstract
Curcumin, a widely utilized flavor and coloring agent in food, has been shown to demonstrate powerful antioxidant, antitumor promoting and anti-inflammatory properties in vitro and in vivo. In the present work, synthesis of new heterocyclic derivatives based on Curcumin was studied. Compound 3 was synthesized via the reaction of furochromone carbaldehyde (1) with Curcumin (2) using pipredine as catalyst. Also, novel, 4,9-dimethoxy-5H-furo [3, 2-g] chromen-5-one derivatives 4a–d, 6a–d, 7, 8a–d, 9 and 10 were synthesized by the reactions of furochromone carbaldehyde (1) with different reagents (namely: appropriate amine 3a–d, appropriate hydrazine 5a–d, hydroxylamine hydrochloride, urea/thiourea, malononitrile, malononitrile with hydrazine hydrate). The structure of the synthesized products had been confirmed from their spectroscopic data (IR, 1H-NMR, 13C-NMR and mass spectra). In the present investigation, the newly synthesized products were screened using the MTT colorimetric assay for their in vitro inhibition capacity in two human cancer cell lines (hepatocellular carcinoma (HEPG2) and breast cancer (MCF-7) as well as the normal cell line (human normal melanocyte, HFB4) in comparison to the known anticancer drugs: 5-flurouracil and doxorubicin. The anticancer activity results indicated that the synthesized products 4c and 8b showed growth inhibition activity against HEPG2 cell line and synthesized products 4b and 8a showed growth inhibition activity against MCF-7, but with varying intensities in comparison to the known anticancer drugs, 5-flurouracil and doxorubicin. Cyclin dependent kinase 2 (CDK2), a major cell cycle protein, was identified as a potential molecular target of Curcumin. Furthermore, Curcumin induced G1 cell cycle arrest, which is regulated by CDK2 in cancer cells. Therefore, we used molecular modelling to study in silico the possible inhibitory effect of CDK2 by Curcumin derivatives as a possible mechanism of these compounds as anticancer agents. The molecular docking study revealed that compounds 4b, 8a and 8b were the most effective compounds in inhibiting CDk2, and, this result was in agreement with cytotoxicity assay.
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32
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Rathwa SK, Vasava MS, Bhoi MN, Borad MA, Patel HD. Recent advances in the synthesis of C-5-substituted analogs of 3,4-dihydropyrimidin-2-ones: A review. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2017.1423503] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sanjay K. Rathwa
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, India
| | - Mahesh S. Vasava
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, India
| | - Manoj N. Bhoi
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, India
| | - Mayuri A. Borad
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, India
| | - Hitesh D. Patel
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, India
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33
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Sharghi H, Aboonajmi J, Aberi M, Shiri P. Heterogeneous AlPO4(SO3H) nanosheets: novel catalyst for the multi-component synthesis of quinazolinones and highly functionalized piperidines. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1308-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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34
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Kaur G, Singh A, Singh A, Kaur N, Singh N. Cobalt complexes of Biginelli derivatives as fluorescent probes for selective estimation and degradation of organophosphates in aqueous medium. Dalton Trans 2018; 47:5595-5606. [DOI: 10.1039/c8dt00150b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Bonding between metal complexes of Biginelli derivatives and organophosphates leads to enhancement of emission intensity.
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Affiliation(s)
- Gaganpreet Kaur
- Centre for Nanoscience & Nanotechnology
- Panjab University
- Chandigarh
- India
| | - Amanpreet Singh
- Department of Chemistry
- Indian Institute of Technology Ropar (IIT Ropar)
- Rupnagar
- India
| | - Ajnesh Singh
- Department of Applied Sciences and Humanities
- Jawaharlal Nehru Government Engineering College
- Mandi
- India
| | - Navneet Kaur
- Department of Chemistry
- Panjab University
- Chandigarh
- India
| | - Narinder Singh
- Department of Chemistry
- Indian Institute of Technology Ropar (IIT Ropar)
- Rupnagar
- India
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35
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Chen Q, Liu X, Guo F, Chen Z. An unexpected rearrangement of pyrazolium halides based on N–N bond cleavage: synthesis of 1,2-dihydropyrimidines. Chem Commun (Camb) 2017; 53:6792-6795. [DOI: 10.1039/c7cc02525d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An unexpected rearrangement of pyrazolium halides was observed, presenting an efficient approach for the synthesis of 1,2-dihydroquinazolines under mild conditions.
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Affiliation(s)
- Qian Chen
- State Key Laboratory of Urban Water Resource and Environment
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
| | - Xiaoshuang Liu
- State Key Laboratory of Urban Water Resource and Environment
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
| | - Fang Guo
- State Key Laboratory of Urban Water Resource and Environment
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
| | - Zhonglin Chen
- School of Municipal Environmental Engineering
- Harbin Institute of Technology
- Harbin
- China
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36
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Liao SR, Du LJ, Qin XC, Xu L, Wang JF, Zhou XF, Tu ZC, Li J, Liu YH. Site selective synthesis of cytotoxic 1,3,6-trisubstituted 3,6-diunsaturated (3Z,6Z)-2,5-diketopiperazines via a one-pot multicomponent method. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.12.073] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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37
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Abedini M, Shirini F, Mousapour M, Goli Jolodar O. Poly(vinylpyrrolidonium) perchlorate catalyzed one-pot synthesis of tricyclic dihydropyrimidine derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2456-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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38
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Kalita SJ, Chandra Deka D, Mecadon H. Organocatalytic domino Knöevenagel–Michael reaction in water for the regioselective synthesis of benzo[4,5]imidazo[1,2-a]pyrimidines and pyrido[2,3-d]pyrimidin-2-amines. RSC Adv 2016. [DOI: 10.1039/c6ra21376f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An organocatalyzed aqueous media domino reaction is developed for the regioselective synthesis of benzo[4,5]imidazo[1,2-a]pyrimidines and pyrido[2,3-d]pyrimidin-2-amines.
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Affiliation(s)
| | | | - Hormi Mecadon
- Department of Chemistry
- University of Gauhati
- Guwahati 781014
- India
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39
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Kaur G, Singh A, Venugopalan P, Kaur N, Singh N. Selective recognition of lithium(i) ions using Biginelli based fluorescent organic nanoparticles in an aqueous medium. RSC Adv 2016. [DOI: 10.1039/c5ra16743d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Detection of lithium ions using fluorescent organic nanoparticles.
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Affiliation(s)
- Gaganpreet Kaur
- Centre for Nanoscience & Nanotechnology (UIEAST)
- Panjab University
- Chandigarh
- India
| | - Amanpreet Singh
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
| | | | - Navneet Kaur
- Centre for Nanoscience & Nanotechnology (UIEAST)
- Panjab University
- Chandigarh
- India
- Department of Chemistry
| | - Narinder Singh
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
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40
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Devi LR, Chanu LV, Choi H, Lee D, Singh OM, Lee SG. Silica-ZnCl2: An Efficient and Reusable Solid Catalyst for One Pot Synthesis of 5-Methyl Mercaptothiocarbonyl-4-aryl-3-dihydropyrimidin-2(1H)-ones Under Solvent-Free Conditions. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10606] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Laishram Ronibala Devi
- Department of Basic Science and Humanities; National Institute of Technology; Langol 795004 India
| | | | - Hojune Choi
- Department of Chemistry, Research Institute of Natural Science (RINS), Graudate School for Molecular Materials and Nanochemistry; Gyeongsang National University; Jinju 660-701 Korea
| | - Dahyun Lee
- Department of Chemistry, Research Institute of Natural Science (RINS), Graudate School for Molecular Materials and Nanochemistry; Gyeongsang National University; Jinju 660-701 Korea
| | | | - Sang-Gyeong Lee
- Department of Chemistry, Research Institute of Natural Science (RINS), Graudate School for Molecular Materials and Nanochemistry; Gyeongsang National University; Jinju 660-701 Korea
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