1
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Zhong CR, Zhang YH, Yao G, Zhu HL, Hu YD, Zeng ZG, Liao CZ, He HT, Luo YT, Xiong J. Synthesis of Imidazo[1,2- a]pyridine-Fused 1,3-Benzodiazepine Derivatives with Anticancer Activity via a One-Pot Cascade GBB-3CR/Pd(II)-Catalyzed Azide-Isocyanide Coupling/Cyclization Process. J Org Chem 2023; 88:13125-13134. [PMID: 37616489 DOI: 10.1021/acs.joc.3c01341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
A new one-pot synthesis of imidazo[1,2-a]pyridine-fused 1,3-benzodiazepine derivatives via a sequential GBB-3CR/Pd(II)-catalyzed azide-isocyanide coupling/cyclization process was developed. The Groebke-Blackburn-Bienaymé three-component reactions (GBB-3CR) of 2-aminopyridine, 2-azidobenzaldehydes, and isocyanides in the presence of a catalytic amount of p-toluenesulfonic acid gave azide intermediates without separation. The reaction was followed by using another molecule of isocyanides to produce imidazo[1,2-a]pyridine-fused 1,3-benzodiazepine derivatives in good yields by the Pd(II)-catalyzed azide-isocyanide coupling/cyclization reaction. The synthetic approach produces novel nitrogen-fused polycyclic heterocycles under mild reaction conditions. The preliminary biological evaluation demonstrated that compound 6a inhibited glioma cells efficiently, suggesting potentially broad applications of the approach for synthesis and medicinal chemistry.
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Affiliation(s)
- Cheng-Ran Zhong
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100 Hubei, P. R. China
| | - Yang-Hong Zhang
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100 Hubei, P. R. China
| | - Gang Yao
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100 Hubei, P. R. China
| | - Hai-Li Zhu
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100 Hubei, P. R. China
| | - Yin-Di Hu
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100 Hubei, P. R. China
| | - Zhi-Gang Zeng
- School of Nuclear Technology and Chemistry & Biology, Hubei University of Science and Technology, Xianning 437100 Hubei, P. R. China
| | - Chang-Zhou Liao
- School of Nuclear Technology and Chemistry & Biology, Hubei University of Science and Technology, Xianning 437100 Hubei, P. R. China
| | - Hui-Ting He
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100 Hubei, P. R. China
| | - Ya-Ting Luo
- School of Nuclear Technology and Chemistry & Biology, Hubei University of Science and Technology, Xianning 437100 Hubei, P. R. China
| | - Jun Xiong
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100 Hubei, P. R. China
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2
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Al-Aizari FA, Ghabbour HA, Kheder NA, Soliman SM, Hassan MZ, Tasqeeruddin S, Mabkhot YN. Synthesis, X-Ray Structure Analysis, Computational Investigations, and In Vitro Biological Evaluation of New Thiazole-Based Heterocycles as Possible Antimicrobial Agents. Polycycl Aromat Compd 2023. [DOI: 10.1080/10406638.2023.2172053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Faiz A. Al-Aizari
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
- Department of Chemistry, Faculty of Science, Al-Baydha University, Albaydah, Yemen
| | - Hazem A. Ghabbour
- Department of Medicinal Chemistry, Faculty of Pharmacy, University of Mansoura, Mansoura, Egypt
| | - Nabila A. Kheder
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
| | - Saied M. Soliman
- Department of Chemistry, Faculty of Science, Alexandria University, Ibrahimia, Alexandria, Egypt
| | - Mohd. Z. Hassan
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Syed Tasqeeruddin
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Yahia N. Mabkhot
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
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3
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Bhattacharjee P, Rutland N, Iyer MR. Targeting Sterol O-Acyltransferase/Acyl-CoA:Cholesterol Acyltransferase (ACAT): A Perspective on Small-Molecule Inhibitors and Their Therapeutic Potential. J Med Chem 2022; 65:16062-16098. [PMID: 36473091 DOI: 10.1021/acs.jmedchem.2c01265] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Sterol O-acyltransferase (SOAT) is a membrane-bound enzyme that aids the esterification of cholesterol and fatty acids to cholesterol esters. SOAT has been studied extensively as a potential drug target, since its inhibition can serve as an alternative to statin therapy. Two SOAT isozymes that have discrete functions in the human body, namely, SOAT1 and SOAT2, have been characterized. Over three decades of research has focused on candidate SOAT1 inhibitors with unsatisfactory results in clinical trials. Recent research has focused on targeting SOAT2 selectively. In this perspective, we summarize the literature covering various SOAT inhibitory agents and discuss the design, structural requirements, and mode of action of SOAT inhibitors.
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Affiliation(s)
- Pinaki Bhattacharjee
- Section on Medicinal Chemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, 5625 Fishers Lane, Rockville, Maryland 20852, United States
| | - Nicholas Rutland
- Section on Medicinal Chemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, 5625 Fishers Lane, Rockville, Maryland 20852, United States
| | - Malliga R Iyer
- Section on Medicinal Chemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, 5625 Fishers Lane, Rockville, Maryland 20852, United States
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4
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Singh HK, Kamal A, Kumari S, Maury SK, Kushwaha AK, Srivastava V, Singh S. Visible‐Light‐Promoted Synthesis of Fusesd Imidazoheterocycle by Eosin Y under Metal‐Free and Solvent‐Free Conditions. ChemistrySelect 2021. [DOI: 10.1002/slct.202103548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Himanshu Kumar Singh
- Department of Chemistry Indian Institute of Technology (BHU) Varanasi 221005 Uttar Pradesh India
| | - Arsala Kamal
- Department of Chemistry Indian Institute of Technology (BHU) Varanasi 221005 Uttar Pradesh India
| | - Savita Kumari
- Department of Chemistry Indian Institute of Technology (BHU) Varanasi 221005 Uttar Pradesh India
| | - Suresh Kumar Maury
- Department of Chemistry Indian Institute of Technology (BHU) Varanasi 221005 Uttar Pradesh India
| | - Ambuj Kumar Kushwaha
- Department of Chemistry Indian Institute of Technology (BHU) Varanasi 221005 Uttar Pradesh India
| | - Vandana Srivastava
- Department of Chemistry Indian Institute of Technology (BHU) Varanasi 221005 Uttar Pradesh India
| | - Sundaram Singh
- Department of Chemistry Indian Institute of Technology (BHU) Varanasi 221005 Uttar Pradesh India
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5
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Konovalova IS, Muzyka EN, Urzhuntseva VV, Shishkina SV. Role of intermolecular interactions in formation of mono- and diaminopyridine crystals: study from the energetic viewpoint. Struct Chem 2021. [DOI: 10.1007/s11224-020-01625-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Mathavan S, B. R. D. Yamajala R. Sustainable Synthetic Approaches for 3‐Aminoimidazo‐fused Heterocycles viaGroebke‐Blackburn‐Bienaymé Process. ChemistrySelect 2020. [DOI: 10.1002/slct.202002894] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Sivagami Mathavan
- Department of chemistry, School of Chemical & Biotechnology SASTRA Deemed University Thanjavur 613401 India
| | - Rajesh B. R. D. Yamajala
- Department of chemistry, School of Chemical & Biotechnology SASTRA Deemed University Thanjavur 613401 India
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7
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Hajibabaei M, Shafiei F, Abdoli‐Senejani M. Quantitative modeling for prediction of thermodynamic properties of some pyridine derivatives using molecular descriptors and genetic algorithm‐multiple linear regressions. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.201900283] [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)
- Maryam Hajibabaei
- Department of Chemistry, Arak BranchIslamic Azad University Arak Iran
| | - Fatemeh Shafiei
- Department of Chemistry, Arak BranchIslamic Azad University Arak Iran
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8
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Guchhait SK, Saini M. Chan–Lam N-arylation and C–H amination with heteroaromatic ring-NH: an approach to access extended-fused imidazo[1,2-a]-pyridines/pyrazines. NEW J CHEM 2020. [DOI: 10.1039/c9nj04966e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An arene 1,2-diamination reaction of areneboronic acid with heterocyclic azines mediated by Cu(ii) constructs N-fused imidazole rings.
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Affiliation(s)
- Sankar Kumar Guchhait
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical and Education Research (NIPER)
- India
| | - Meenu Saini
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical and Education Research (NIPER)
- India
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9
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Mech P, Bogunia M, Nowacki A, Makowski M. Calculations of pKa Values of Selected Pyridinium and Its N-Oxide Ions in Water and Acetonitrile. J Phys Chem A 2019; 124:538-551. [DOI: 10.1021/acs.jpca.9b10319] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Paulina Mech
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Małgorzata Bogunia
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Andrzej Nowacki
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Mariusz Makowski
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
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10
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Gupta A, Sasan S, Kour A, Nelofar N, Manikrao Mondhe D, Kapoor KK. Triarylimidazo[1,2- a]pyridine-8-carbonitriles: solvent-free synthesis and their anti-cancer evaluation. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1605445] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Annah Gupta
- Department of Chemistry, University of Jammu, Jammu, India
| | - Sonakshi Sasan
- Department of Chemistry, University of Jammu, Jammu, India
| | - Avneet Kour
- Cancer Pharmacology Division, CSIR-Indian Institute of Integrative Medicines, Jammu, India
| | | | - Dilip Manikrao Mondhe
- Cancer Pharmacology Division, CSIR-Indian Institute of Integrative Medicines, Jammu, India
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11
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Rajasekar S, Krishna TPA, Tharmalingam N, Andivelu I, Mylonakis E. Metal-Free C-H Thiomethylation of Quinones Using Iodine and DMSO and Study of Antibacterial Activity. ChemistrySelect 2019. [DOI: 10.1002/slct.201803816] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sakthidevi Rajasekar
- School of Chemistry; Bharathidasan University, Tiruchirappalli; Tamilnadu-620024 India
| | - T. P. Adarsh Krishna
- School of Chemistry; Bharathidasan University, Tiruchirappalli; Tamilnadu-620024 India
| | - Nagendran Tharmalingam
- Infectious Diseases Division; Warren Alpert Medical School of Brown University, Rhode Island Hospital, Providance; RI 02903 USA
| | - Ilangovan Andivelu
- School of Chemistry; Bharathidasan University, Tiruchirappalli; Tamilnadu-620024 India
| | - Eleftherios Mylonakis
- Infectious Diseases Division; Warren Alpert Medical School of Brown University, Rhode Island Hospital, Providance; RI 02903 USA
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12
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Park HJ, Jun JG. An Efficient Copper-catalyzed Nucleophilic Addition to N
-Acyliminium Ions Derived from N
-Benzyloxycarbonylamino Sulfones: A Novel Approach to C-3 Functionalization of 2-Phenylimidazo[1,2-a
]pyridine. B KOREAN CHEM SOC 2017. [DOI: 10.1002/bkcs.11228] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hyeong Jin Park
- Department of Chemistry and Institute of Applied Chemistry; Hallym University; Chuncheon 24252 Korea
| | - Jong-Gab Jun
- Department of Chemistry and Institute of Applied Chemistry; Hallym University; Chuncheon 24252 Korea
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13
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Khillare LD, Pratap UR, Bhosle MR, Dhumal ST, Bhalerao MB, Mane RA. Syntheses of biodynamic heterocycles: baker’s yeast-assisted cyclocondensations of organic nucleophiles and phenacyl chlorides. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-2880-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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14
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Subba Rao AV, Vishnu Vardhan MVPS, Subba Reddy NV, Srinivasa Reddy T, Shaik SP, Bagul C, Kamal A. Synthesis and biological evaluation of imidazopyridinyl-1,3,4-oxadiazole conjugates as apoptosis inducers and topoisomerase IIα inhibitors. Bioorg Chem 2016; 69:7-19. [PMID: 27656775 DOI: 10.1016/j.bioorg.2016.09.002] [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: 06/10/2016] [Revised: 09/01/2016] [Accepted: 09/02/2016] [Indexed: 12/27/2022]
Abstract
A series of imidazopyridinyl-1,3,4-oxadiazole conjugates were synthesized and investigated for their cytotoxic activity and some compounds showed promising cytotoxic activity. Compound 8q (NSC: 763639) exhibited notable growth inhibition that satisfies threshold criteria at single dose (10μM) on all human cancer cell lines. This compound was further evaluated at five dose levels (0.01, 0.1, 1, 10 and 100μM) to obtain GI50 values ranging from 1.30 to 5.64μM. Flow cytometric analysis revealed that compound 8q arrests the A549 cells in sub G1 phase followed by induction of apoptosis which was further confirmed by Annexin-V-FITC, Hoechst nuclear staining, caspase 3 activation, measurement of mitochondrial membrane potential and ROS generation. Topo II mediated DNA relaxation assay results showed that conjugate 8q could significantly inhibit the activity of topo II. Moreover, molecular docking studies also indicated binding to the topoisomerase enzyme (PDBID 1ZXN).
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Affiliation(s)
- A V Subba Rao
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - M V P S Vishnu Vardhan
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - N V Subba Reddy
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - T Srinivasa Reddy
- IICT-RMIT Research Centre, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Siddiq Pasha Shaik
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Chandrakant Bagul
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education & Research (NIPER), Hyderabad 500 037, India
| | - Ahmed Kamal
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; IICT-RMIT Research Centre, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; Department of Medicinal Chemistry, National Institute of Pharmaceutical Education & Research (NIPER), Hyderabad 500 037, India.
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15
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Ansari AJ, Sharma S, Pathare RS, Gopal K, Sawant DM, Pardasani RT. Solvent-free Multicomponent Synthesis of Biologically-active Fused-imidazo Heterocycles Catalyzed by Reusable Yb(OTf)3Under Microwave Irradiation. ChemistrySelect 2016. [DOI: 10.1002/slct.201600241] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Arshad J. Ansari
- Department of Pharmacy; Central University of Rajasthan; Bandarsindri, Kishangarh, Ajmer - 305 817 Rajasthan India
| | - Shivani Sharma
- Department of Chemistry; Central University of Rajasthan; Bandarsindri, Kishangarh, Ajmer - 305 817 Rajasthan India
| | - Ramdas S. Pathare
- Department of Chemistry; Central University of Rajasthan; Bandarsindri, Kishangarh, Ajmer - 305 817 Rajasthan India
| | - Kandasamy Gopal
- Department of Chemistry; Central University of Rajasthan; Bandarsindri, Kishangarh, Ajmer - 305 817 Rajasthan India
| | - Devesh M. Sawant
- Department of Pharmacy; Central University of Rajasthan; Bandarsindri, Kishangarh, Ajmer - 305 817 Rajasthan India
| | - R. T. Pardasani
- Department of Chemistry; Central University of Rajasthan; Bandarsindri, Kishangarh, Ajmer - 305 817 Rajasthan India
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16
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Koubachi J, El Kazzouli S, Bousmina M, Guillaumet G. Functionalization of Imidazo[1,2-a]pyridines by Means of Metal-Catalyzed Cross-Coupling Reactions. European J Org Chem 2014. [DOI: 10.1002/ejoc.201400065] [Citation(s) in RCA: 135] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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17
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Catalyst-free synthesis of 3-(alkylamino)-2-arylimidazo[1,2-a]pyridine-8-carboxylic acids via a three-component condensation. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.03.121] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Lee K, Cho SH, Lee JH, Goo J, Lee SY, Boovanahalli SK, Yeo SK, Lee SJ, Kim YK, Kim DH, Choi Y, Song GY. Synthesis of a novel series of 2-alkylthio substituted naphthoquinones as potent acyl-CoA: cholesterol acyltransferase (ACAT) inhibitors. Eur J Med Chem 2013; 62:515-25. [PMID: 23419736 DOI: 10.1016/j.ejmech.2013.01.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Revised: 01/06/2013] [Accepted: 01/14/2013] [Indexed: 10/27/2022]
Abstract
We report a new series of naphthoquinone derivatives as potent ACAT inhibitors, which were obtained through structural variations of previously disclosed lead 1. Several analogs represented by 3i-l, 4k-m, 6a-n, 7a, and 7i demonstrated potent human macrophage ACAT inhibitory activity by a cell-based reporter assay with human HepG2 cell lines. In particular, compounds 4l and 6j emerged as highly potent inhibitors, exhibiting significantly high inhibitory potencies with IC50 values of 0.44 μM and 0.6 μM, respectively. Moreover, compound 4l significantly reduced the accumulation of cellular cholesterol in HepG2 cell lines.
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Affiliation(s)
- Kyeong Lee
- College of Pharmacy, Dongguk University-Seoul, Seoul 100-715, Republic of Korea
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Baviskar AT, Madaan C, Preet R, Mohapatra P, Jain V, Agarwal A, Guchhait SK, Kundu CN, Banerjee UC, Bharatam PV. N-fused imidazoles as novel anticancer agents that inhibit catalytic activity of topoisomerase IIα and induce apoptosis in G1/S phase. J Med Chem 2011; 54:5013-30. [PMID: 21644529 DOI: 10.1021/jm200235u] [Citation(s) in RCA: 208] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
On the basis of structures of known topoisomerase II catalytic inhibitors and initial molecular docking studies, bicyclic N-fused aminoimidazoles were predicted as potential topoisomerase II inhibitors. They were synthesized by multicomponent reactions and evaluated against human topoisomerase IIα (hTopoIIα) in decatenation, relaxation, cleavage complex, and DNA intercalation in vitro assays. Among 31 compounds of eight different bicyclic scaffolds, it was found that imidazopyridine, imidazopyrazole, and imidazopyrazine with suitable substituents exhibited potent inhibition of catalytic activity of hTopoIIα while not showing DNA intercalation. Molecular docking studies and molecular dynamics (MD) simulation analysis, ATPase-kinetics and ATP-dependent plasmid relaxation assay revealed the catalytic mode of inhibition of the title compounds plausibly by blocking the ATP-binding site. N-Fused aminoimidazoles showed potent anticancer activities in kidney and breast cancer cell lines, low toxicity to normal cells, relatively higher potency compared to etoposide and 5-fluorouracil in kidney cancer cell lines, and potent inhibition in cell migration. These compounds were found to exert apoptotic effect in G1/S phase.
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Affiliation(s)
- Ashish T Baviskar
- National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, SAS Nagar (Mohali), Punjab-160062, India
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