1
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De Tran Q, Nguyen CQ, Dang QL, Minh Nguyen TH, Buu Hue BT, Thi Le MU, Tuan NT, Chau Thanh NQ, Men TT, Quan PM, Tuan ND, Cam TT, Thu Thuy NT, Bich Hau VT, Binh TD, Nguyen HP. ZIKV Inhibitors Based on Pyrazolo[3,4- d]pyridazine-7-one Core: Rational Design, In Vitro Evaluation, and Theoretical Studies. ACS OMEGA 2023; 8:48994-49008. [PMID: 38162759 PMCID: PMC10753549 DOI: 10.1021/acsomega.3c06612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/21/2023] [Accepted: 11/27/2023] [Indexed: 01/03/2024]
Abstract
The Zika virus (ZIKV) is believed to cause birth defects, and no anti-ZIKV drugs have been approved by medical organizations to date. Starting from antimicrobial lead compounds with a pyrazolo[3,4-d]pyridazine-7-one scaffold, we synthesized 16 derivatives and screened their ability to interfere with ZIKV infection utilizing a cell-based phenotypic assay. Of these, five compounds showed significant inhibition of ZIKV with a selective index value greater than 4.6. In particular, compound 9b showed the best anti-ZIKV activity with a selectivity index of 22.4 (half-maximal effective concentration = 25.6 μM and 50% cytotoxic concentration = 572.4 μM). Through the brine shrimp lethality bioassay, 9b, 10b, 12, 17a, and 19a showed median lethal dose values in a range of 87.2-100.3 μg/mL. Compound 9b was also targeted to the NS2B-NS3 protease of ZIKV using molecular docking protocols, in which it acted as a noncompetitive inhibitor and strongly bound to five key amino acids (His51, Asp75, Ser135, Ala132, Tyr161). Utilizing the pharmacophore model of 9b, the top 20 hits were identified as prospective inhibitors of NS2B-NS3 protease, and six of them were confirmed for their stability with the protease via redocking and molecular dynamics simulations.
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Affiliation(s)
- Quang De Tran
- Department
of Chemistry, College of Natural Sciences, Can Tho University, Can Tho 94000, Vietnam
- Analytical
Techniques Lab (1.16-AT Department of Chemistry L), CTU High-tech
Building, Can Tho University, Can Tho 94000, Vietnam
| | - Cuong Quoc Nguyen
- Department
of Chemistry, College of Natural Sciences, Can Tho University, Can Tho 94000, Vietnam
- Analytical
Techniques Lab (1.16-AT Department of Chemistry L), CTU High-tech
Building, Can Tho University, Can Tho 94000, Vietnam
| | - Quang Le Dang
- Institute
for Tropical Technology, Vietnam Academy
of Science and Technology, Hanoi 10072, Vietnam
- Graduate
University of Science and Technology, Vietnam
Academy of Science and Technology, Hanoi 10072, Vietnam
| | - Thi Hong Minh Nguyen
- Department
of Life Science, University of Science and
Technology of Ha Noi, Vietnam Academy of Science and Technology, Ha Noi 10072, Vietnam
| | - Bui Thi Buu Hue
- Department
of Chemistry, College of Natural Sciences, Can Tho University, Can Tho 94000, Vietnam
| | - Minh Uyen Thi Le
- Department
of Surgery, Division of Transplant Surgery, Indiana University School of Medicine, Indianapolis 46202, Indiana, United States
| | - Nguyen Trong Tuan
- Department
of Chemistry, College of Natural Sciences, Can Tho University, Can Tho 94000, Vietnam
| | - Nguyen Quoc Chau Thanh
- Department
of Chemistry, College of Natural Sciences, Can Tho University, Can Tho 94000, Vietnam
| | - Tran Thanh Men
- Department
of Biology, College of Natural Sciences, Can Tho University, Can Tho 94000, Vietnam
| | - Pham Minh Quan
- Graduate
University of Science and Technology, Vietnam
Academy of Science and Technology, Hanoi 10072, Vietnam
- Institute
of Natural Products Chemistry, Vietnam Academy
of Science and Technology, Ha Noi 10072, Vietnam
| | | | | | - Nguyen Thi Thu Thuy
- National Institute of Hygiene and Epidemiology, No 1 Yersin, Hai Ba Trung, Ha Noi 10000, Vietnam
| | - Vu Thi Bich Hau
- National Institute of Hygiene and Epidemiology, No 1 Yersin, Hai Ba Trung, Ha Noi 10000, Vietnam
| | - Tran Duy Binh
- Department
of Biology, College of Natural Sciences, Can Tho University, Can Tho 94000, Vietnam
| | - Hong Phuong Nguyen
- Department
of Pediatrics, Indiana University School
of Medicine, Indianapolis 46202, Indiana, United States
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2
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Hashem HE, Amr AEGE, Almehizia AA, Naglah AM, Kariuki BM, Eassa HA, Nossier ES. Nanoparticles of a Pyrazolo-Pyridazine Derivative as Potential EGFR and CDK-2 Inhibitors: Design, Structure Determination, Anticancer Evaluation and In Silico Studies. Molecules 2023; 28:7252. [PMID: 37959672 PMCID: PMC10648062 DOI: 10.3390/molecules28217252] [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: 08/15/2023] [Revised: 09/19/2023] [Accepted: 09/28/2023] [Indexed: 11/15/2023] Open
Abstract
The strategic planning of this study is based upon using the nanoformulation method to prepare nanoparticles 4-SLNs and 4-LPHNPs of the previously prepared 4,5-diphenyl-1H-pyrazolo[3,4-c]pyridazin-3-amine (4) after confirming its structure with single crystal X-ray analysis. These nanoparticles exhibited promising cytotoxic activity against HepG-2, HCT-116 and MCF-7 cancer cell lines in comparison with the reference doxorubicin and the original derivative 4. Moreover, their inhibitory assessment against EGFR and CDK-2/cyclin A2 displayed improved and more favorable impact than the parent 4 and the references. Detection of their influence upon cancer biomarkers revealed upregulation of Bax, p53 and caspase-3 levels and downregulation of Bcl-2 levels. The docking simulation demonstrated that the presence of the pyrazolo[3,4-c]pyridazin-3-amine scaffold is amenable to enclosure and binding well within EGFR and CDK-2 receptors through different hydrophilic interactions. The pharmacokinetic and physicochemical properties of target 4 were also assessed with ADME investigation, and the outcome indicated good drug-like characteristics.
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Affiliation(s)
- Heba E. Hashem
- Department of Chemistry, Faculty of Women, Ain Shams University, Cairo 11757, Egypt
| | - Abd El-Galil E. Amr
- Applied Organic Chemistry Department, National Research Center, Cairo 12622, Egypt
| | - Abdulrahman A. Almehizia
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Ahmed M. Naglah
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Benson M. Kariuki
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - Heba A. Eassa
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 11754, Egypt
- Department of Pharmaceutical Sciences, School of Pharmacy and Physician Assistant Studies, University of Saint Joseph, West Hartford, CT 06117, USA
| | - Eman S. Nossier
- Department of Pharmaceutical Medicinal Chemistry and Drug Design, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 11754, Egypt
- The National Committee of Drugs, Academy of Scientific Research and Technology, Cairo 11516, Egypt
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3
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Koparir P, Evren Parlak A, Karatepe A, Omar RA. Elucidation of Potential Anticancer, Antioxidant and Antimicrobial Properties of Some New Triazole Compounds Bearing Pyridine-4-yl Moiety and Cyclobutane Ring. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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4
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Discovery of New Pyrazolopyridine, Furopyridine, and Pyridine Derivatives as CDK2 Inhibitors: Design, Synthesis, Docking Studies, and Anti-Proliferative Activity. Molecules 2021; 26:molecules26133923. [PMID: 34206976 PMCID: PMC8272136 DOI: 10.3390/molecules26133923] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/03/2021] [Accepted: 06/22/2021] [Indexed: 11/17/2022] Open
Abstract
New pyridine, pyrazoloyridine, and furopyridine derivatives substituted with naphthyl and thienyl moieties were designed and synthesized starting from 6-(naphthalen-2-yl)-2-oxo-4-(thiophen-2-yl)-1,2-dihydropyridine-3-carbonitrile (1). The chloro, methoxy, cholroacetoxy, imidazolyl, azide, and arylamino derivatives were prepared to obtain the pyridine-−C2 functionalized derivatives. The derived pyrazolpyridine-N-glycosides were synthesized via heterocyclization of the C2-thioxopyridine derivative followed by glycosylation using glucose and galactose. The furopyridine derivative 14 and the tricyclic pyrido[3′,2′:4,5]furo[3,2-d]pyrimidine 15 were prepared via heterocyclization of the ester derivative followed by a reaction with formamide. The newly synthesized compounds were evaluated for their ability to in vitro inhibit the CDK2 enzyme. In addition, the cytotoxicity of the compounds was tested against four different human cancer cell lines (HCT-116, MCF-7, HepG2, and A549). The CDK2/cyclin A2 enzyme inhibitory results revealed that pyridone 1, 2-chloro-6-(naphthalen-2-yl)-4-(thiophen-2-yl)nicotinonitrile (4), 6-(naphthalen-2-yl)-4-(thiophen-2-yl)-1H-pyrazolo[3,4-b]pyridin-3-amine (8), S-(3-cyano-6-(naphthaen-2-yl)-4-(thiophen-2-yl)pyridin-2-yl) 2-chloroethanethioate (11), and ethyl 3-amino-6-(naphthalen-2-yl)-4-(thiophen-2-yl)furo[2,3-b]pyridine-2-carboxylate (14) are among the most active inhibitors with IC50 values of 0.57, 0.24, 0.65, 0.50, and 0.93 µM, respectively, compared to roscovitine (IC50 0.394 μM). Most compounds showed significant inhibition on different human cancer cell lines (HCT-116, MCF-7, HepG2, and A549) with IC50 ranges of 31.3–49.0, 19.3–55.5, 22.7–44.8, and 36.8–70.7 μM, respectively compared to doxorubicin (IC50 40.0, 64.8, 24.7 and 58.1 µM, respectively). Furthermore, a molecular docking study suggests that most of the target compounds have a similar binding mode as a reference compound in the active site of the CDK2 enzyme. The structural requirements controlling the CDK2 inhibitory activity were determined through the generation of a statistically significant 2D-QSAR model.
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Ashraf A, Shafiq Z, Khan Jadoon MS, Tahir MN, Pelletier J, Sevigny J, Yaqub M, Iqbal J. Synthesis, Characterization, and In Silico Studies of Novel Spirooxindole Derivatives as Ecto-5'-Nucleotidase Inhibitors. ACS Med Chem Lett 2020; 11:2397-2405. [PMID: 33335662 DOI: 10.1021/acsmedchemlett.0c00343] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 10/23/2020] [Indexed: 01/04/2023] Open
Abstract
Ecto-5'-nucleotidase (ecto-5'-NT, CD73) inhibitors are promising drug candidates for cancer therapy. Traditional efforts used to inhibit the ecto-5'-nucleotidase have involved antibody therapy or development of small molecule inhibitors that can mimic the acidic and ionizable structure of adenosine 5'-monophosphate (AMP). Herein, we report an efficient, environment friendly route for the synthesis of non-nucleotide based small molecules, i.e., substituted spirooxindole derivatives 9a-9l and investigated their inhibitory potential on human and rat recombinant ecto-5'-nucleotidase isozymes. These attempts have resulted in the identification of compound 9f (IC50 = 0.15 ± 0.02 μM) inhibitor on h-ecto-5'-NT which showed 280-fold higher inhibition and compound 9h (IC50 ± 0.19 ± 0.03 μM) on r-ecto-5'-NT with 406-fold enhanced inhibition than reference standard sulfamic acid. Moreover, in silico studies were carried out to assess binding interactions of potent compounds within enzyme active sites and demonstrated excellent correlation with the experimental findings.
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Affiliation(s)
- Abida Ashraf
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan 60000, Pakistan
- Department of Chemistry, Kuchery Campus, The Women University Multan, Multan, Pakistan
| | - Zahid Shafiq
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan 60000, Pakistan
| | - Muhammad Siraj Khan Jadoon
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan
| | | | - Julie Pelletier
- Centre de Recherche du CHU de Québec, Québec, Québec, Canada G1V 4G2
| | - Jean Sevigny
- Centre de Recherche du CHU de Québec, Québec, Québec, Canada G1V 4G2
- Département de Microbiologie-Infectiologie et d’Immunologie, Faculté de Médecine, Université Laval, Québec, Québec, Canada G1V 0A6
| | - Muhammad Yaqub
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan 60000, Pakistan
| | - Jamshed Iqbal
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan
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6
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Synthesis, biological activity and POM/DFT/docking analyses of annulated pyrano[2,3-d]pyrimidine derivatives: Identification of antibacterial and antitumor pharmacophore sites. Bioorg Chem 2020; 106:104480. [PMID: 33279245 DOI: 10.1016/j.bioorg.2020.104480] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 09/27/2020] [Accepted: 11/15/2020] [Indexed: 12/17/2022]
Abstract
New annulated pyrano[2,3-d]pyrimidine derivatives were synthesized with hydroxyl, methoxy, bromine, nitrile and nitro substituents on its skeleton. The correlated electronic effect of substituents on the magnitude of antibacterial activity was noted. The electron donating substituents (namely; 4-OH, 4-OCH3, 4-Br) and electron withdrawing substituents (4-NO2) on phenyl ring in the pyrano[2,3-d]pyrimidine skeleton exerted different influence on its antimicrobial activity against some Gram-positive and Gram-negative bacteria such as Pseudomonas aureus, E. coli, Staphylococcus aureus, Klebsiella pneumonia and Bacillus cereus. All the pyrano[2,3-d]pyrimidines were characterized by spectroscopic analyses. Antibacterial screening revealed that the presence of heteroaryl, cyano and amino groups on pyrano[2,3-d]pyrimidine skeleton increases its penetrating power on the bacterial cell wall so that the product becomes more biologically active. So the the nature of electron withdrawing or electro-donnor Impact of substituents should be taken in consideration in drug design. Hydrolysis of -CRN to amide restored vital Intramolecular interaction like ortho-nitrophenyl and ONOδ-…NHδ+/amide link, offering a crucial template for antibacterial NH, HO-pharmacophore sites, which ultimately elevated innate antimicrobial profiles. POM combinatorial analysis of tangible electronic contributions due to armed annulated pyrano[2,3-d]pyrimidines concluded their broad antimicrobial activity and viable/prominent drug score index through perspective parameters particularly: inter atomic distance/linkers, steric, electronic, polar parameters, and with a different polarising effect of electron donating/withdrawing environments of substituents. Furthermore, an anti-Kinase pharmacophore site (OCNHCO) was evaluated in continuation of the POM investigations. All synthesized products verified fewer side effects than standard streptomycin, but facile implication in selective cancer media (viz. breast or leucemia still needs to be screened).
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7
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Ahmed MF, Santali EY, Mohi El-Deen EM, Naguib IA, El-Haggar R. Development of pyridazine derivatives as potential EGFR inhibitors and apoptosis inducers: Design, synthesis, anticancer evaluation, and molecular modeling studies. Bioorg Chem 2020; 106:104473. [PMID: 33243490 DOI: 10.1016/j.bioorg.2020.104473] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 12/29/2022]
Abstract
Novel hybrids of pyridazine-pyrazoline were synthesized aiming to develop new antiproliferative candidates. All compounds were submitted to the National Cancer Institute (NCI), USA, and many were proved to have significant antiproliferative activity. In addition, in vitro studies of the epidermal growth factor receptor (EGFR) inhibition showed that compounds IXn, IXg, IXb and IXl exhibited excellent inhibitory effect (IC50 = 0.65, 0.75, 0.82 and 0.84 μM, respectively) compared to Erlotinib (IC50 = 0.95 μM). The mechanistic effectiveness in cell cycle progression, apoptotic induction and gene regulation were assessed for the promising compounds IXg and IXn due to their significant EGFR inhibition. Flow cytometeric analysis indicated that compounds IXg and IXn result in increased cell numbers in phase G2/M, suggesting cell cycle arrest in phase G2/M in UO-31cells. Furthermore, real time PCR assay illustrated that compounds IXg and IXn elevated Bax/Bcl2 ratio which confirmed the mechanistic pathway of them. Moreover, the apoptotic induction of UO-31 renal cancer cells was enhanced effectively through activation of caspase-3 by compounds IXg and IXn. On the other hand, molecular docking study was performed to investigate binding mode of interaction of compounds with EGFR-PK in the active site with the aim of rationalizing its promising inhibitory activity. Finally, based on the aforementioned findings, compounds IXg and IXn could be considered as effective apoptosis modulators and promising leads for future development of new anti-renal cancer agents.
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Affiliation(s)
- Marwa F Ahmed
- Department of Pharmaceutical Chemistry, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia; Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt.
| | - Eman Y Santali
- Department of Pharmaceutical Chemistry, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Eman M Mohi El-Deen
- Department of Therapeutic Chemistry, National Research Centre, Dokki, Cairo 12622, Egypt
| | - Ibrahim A Naguib
- Department of Pharmaceutical Chemistry, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia; Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Beni-Suef University, Alshaheed Shehata Ahmad Hegazy St., 62514 Beni-Suef, Egypt
| | - Radwan El-Haggar
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt.
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8
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Kumbar M, Shaikh SKJ, Kamble RR, Bayannavar PK, Kamble AA, Hunnur RK. Serendipitous Formation of 2 H-Pyrazolo[3,4- d]pyridazin-7(6 H)-ones from 3-Arylsydnones. ACS OMEGA 2019; 4:4955-4962. [PMID: 31459679 PMCID: PMC6647958 DOI: 10.1021/acsomega.8b02013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 02/01/2019] [Indexed: 06/10/2023]
Abstract
Fused nitrogen heterocyclesnamely, pyrazolo[3,4-d]pyridazin-7(6H)-ones have been obtained by exploiting the 1,3-dipolar nature of N-arylsydnones, from hydrazones of 3-aryl-4-acetylsydnones via the Vilsmeier-Haack strategy. Facile intramolecular nucleophilic addition followed by CO2 elimination under reflux or upon microwave irradiation was presented. Plausible mechanisms for the formation of the title compounds are proffered. Structure confirmatory evidence came from single-crystal X-ray crystallography.
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Affiliation(s)
- Mahadev
N. Kumbar
- Department
of Chemistry, Karnatak University, Dharwad 580003, Karnataka, India
| | | | - Ravindra R. Kamble
- Department
of Chemistry, Karnatak University, Dharwad 580003, Karnataka, India
| | | | - Atulkumar A. Kamble
- Department
of Chemistry, Karnatak University, Dharwad 580003, Karnataka, India
| | - Raveendra K. Hunnur
- APL
Research Centre (a division of Aurobindo Pharma Ltd.
313), Batchupally, Hyderabad 500 072, India
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9
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Bhat AR, Shalla AH, Dongre RS. Dibutylamine (DBA): A highly efficient catalyst for the synthesis of pyrano[2,3-d]pyrimidine derivatives in aqueous media. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2018. [DOI: 10.1016/j.jtusci.2015.03.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Ajmal R. Bhat
- Department of Chemistry, R.T.M. Nagpur UniversityNagpur 440033India
| | - Aabid H. Shalla
- Islamic University of Science and TechnologyJammu Kashmir 192122India
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Bhat AR, Dongre RS, Shalla AH, Naikoo GA, Ul Hassan I. Computational analysis for antimicrobial active pyrano[2,3-d]pyrimidine derivatives on the basis of theoretical and experimental ground. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.jaubas.2015.12.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ajmal R. Bhat
- Department of Chemistry, Islamic University of Science and Technology, Jammu and Kashmir 192122, India
| | | | - Aabid H. Shalla
- Department of Chemistry, Islamic University of Science and Technology, Jammu and Kashmir 192122, India
| | - Gowhar A. Naikoo
- Maths and Sciences Unit, College of Arts and Applied Sciences, Dhofar University, Oman
| | - Israr Ul Hassan
- Maths and Sciences Unit, College of Arts and Applied Sciences, Dhofar University, Oman
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11
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Dongre RS, Meshram JS, Selokar RS, Almalki FA, Hadda TB. Antibacterial activity of synthetic pyrido[2,3- d]pyrimidines armed with nitrile groups: POM analysis and identification of pharmacophore sites of nitriles as important pro-drugs. NEW J CHEM 2018. [DOI: 10.1039/c8nj02081g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A pyrido[2,3-d]pyrimidine series has exhibited inhibitory effects on the growth of bacterial strains.
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Affiliation(s)
| | | | | | - Faisal A. Almalki
- Department of Pharmaceutical Chemistry
- Faculty of Pharmacy
- Umm Al-Qura University
- Makkah
- Saudi Arabia
| | - Taibi Ben Hadda
- Materials Chemistry Laboratory
- Faculty of Sciences
- University Mohammed Premier
- 60000 Oujda
- Morocco
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12
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Bhat AR, Naikoo GA, Hassan IU, Dongra RS, Ara T. Ultrasound assisted one pot expeditious synthesis of new pyrido[2,3- d ]pyrimidine analogues using mild and inexpensive 4-dimethylaminopyridine (DMAP) catalyst. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2017. [DOI: 10.1016/j.bjbas.2017.04.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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13
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Rimaz M, Mousavi H, Nikpey L, Khalili B. Novel and convenient one-pot strategy for regioselective synthesis of new 5-aryl-3-methyl-1-phenyl-1,2-dihydro-7aH-pyrazolo[3,4-c]pyridazin-7a-ol derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-016-2848-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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14
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15
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16
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Rimaz M. Two Efficient One-Pot Approaches for Regioselective Synthesis of New 3-Arylpyridazino[4,3-c]quinolin-5(6H)-ones. Aust J Chem 2015. [DOI: 10.1071/ch15029] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Two efficient regioselective approaches for the one-pot synthesis of 3-arylpyridazino[4,3-c]quinolin-5(6H)-one derivatives are reported, by the three-component reaction of arylglyoxal monohydrates, quinoline-2,4-diol, and hydrazinium dihydrochloride or hydrazine hydrate in ethanol and pyridine. In ethanol, the reactions were catalyzed by 1,4-diazobicyclo[2,2,2]octane. The features of both procedures are high regioselectivity, mild reaction conditions, good to high yields, and operational simplicity.
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17
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Synthesis of a new class of Pyridazin-3-one and 2-amino-5-arylazopyridine derivatives and their utility in the synthesis of fused azines. Molecules 2014; 19:2637-54. [PMID: 24566327 PMCID: PMC6272007 DOI: 10.3390/molecules19022637] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 02/11/2014] [Accepted: 02/17/2014] [Indexed: 11/18/2022] Open
Abstract
A general route for the synthesis of a novel class of pyridazin-3-one derivatives 3 by the reaction in acetic anhydride between 3-oxo-2-arylhydrazonopropanals 1 and some active methylene compounds like p-nitrophenylacetic acid and cyanoacetic acid was established. Under these conditions the pyridazin-3-one derivatives 3 were formed as the sole isolable products in excellent yield. The 6-acetyl-3-oxopyridazine derivative 3l was reacted with DMF-DMA to afford the corresponding enaminone derivative 4, which reacts with a variety of aminoazoles to afford the corresponding azolo[1,5-a]pyrimidine derivatives 5–7. Also, in order to explore the viability and generality of a recently uncovered reaction between 3-oxo-2-arylhydrazonopropanals and active methylene compounds, a variety of 2-amino-6-aryl-5-arylazo-3-aroylpyridines 16–19 were prepared by reacting 3-oxo-2-arylhydrazonopropanals with miscellaneous active methylene compounds like 3-oxo-3-phenylpropionitrile, hetaroylacetonitriles and cyanoacetamides. These 2-aminopyridine derivatives undergo smooth reactions with cyanoacetic acid that led to the formation in high yield of a new class of 1,8-naphthyridine derivatives 24. The structures of all new substances prepared in this investigation were determined by the different analytical spectroscopic methods, in addition to the X-ray crystallographic analysis.
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Carbain B, Paterson DJ, Anscombe E, Campbell AJ, Cano C, Echalier A, Endicott JA, Golding BT, Haggerty K, Hardcastle IR, Jewsbury PJ, Newell DR, Noble MEM, Roche C, Wang LZ, Griffin RJ. 8-Substituted O(6)-cyclohexylmethylguanine CDK2 inhibitors: using structure-based inhibitor design to optimize an alternative binding mode. J Med Chem 2014; 57:56-70. [PMID: 24304238 DOI: 10.1021/jm401555v] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Evaluation of the effects of purine C-8 substitution within a series of CDK1/2-selective O(6)-cyclohexylmethylguanine derivatives revealed that potency decreases initially with increasing size of the alkyl substituent. Structural analysis showed that C-8 substitution is poorly tolerated, and to avoid unacceptable steric interactions, these compounds adopt novel binding modes. Thus, 2-amino-6-cyclohexylmethoxy-8-isopropyl-9H-purine adopts a "reverse" binding mode where the purine backbone has flipped 180°. This provided a novel lead chemotype from which we have designed more potent CDK2 inhibitors using, in the first instance, quantum mechanical energy calculations. Introduction of an ortho-tolyl or ortho-chlorophenyl group at the purine C-8 position restored the potency of these "reverse" binding mode inhibitors to that of the parent 2-amino-6-cyclohexylmethoxy-9H-purine. By contrast, the corresponding 8-(2-methyl-3-sulfamoylphenyl)-purine derivative exhibited submicromolar CDK2-inhibitory activity by virtue of engineered additional interactions with Asp86 and Lys89 in the reversed binding mode, as confirmed by X-ray crystallography.
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Affiliation(s)
- Benoit Carbain
- Department of Biochemistry, University of Oxford , South Parks Road, Oxford OX1 3QU, U.K
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Singh P, Kumar R, Yadav BK, Khanna RS, Tewari AK. CCSO nano catalyzed solid phase synthesis of 3-oxo-5,6-disubstituted-2,3-dihydropyridazine-4-carbonitrile. RSC Adv 2014. [DOI: 10.1039/c4ra06640e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
CCSO nano particles successfully catalyzed the synthesis of substituted pyridazines from substituted benzil and cyanoacetylhydrazide.
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Affiliation(s)
- Praveen Singh
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi 221 005, India
| | - Ranjeet Kumar
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi 221 005, India
| | - Brijesh Kumar Yadav
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi 221 005, India
| | - Ranjana S. Khanna
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi 221 005, India
| | - Ashish Kumar Tewari
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi 221 005, India
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20
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Kumar Jangid M, Yadav T, Yadav AK. Microwave-enhanced Efficient Synthesis of Some Polyfunctional Pyridazines. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- M. Kumar Jangid
- Department of Chemistry; University of Rajasthan; Jaipur; 302 004; India
| | - T. Yadav
- Department of Chemistry; University of Rajasthan; Jaipur; 302 004; India
| | - A. K. Yadav
- Department of Chemistry; University of Rajasthan; Jaipur; 302 004; India
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21
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Ibrahim HM, Behbehani H, Elnagdi MH. Approaches towards the synthesis of a novel class of 2-amino-5-arylazonicotinate, pyridazinone and pyrido[2,3-d]pyrimidine derivatives as potent antimicrobial agents. Chem Cent J 2013; 7:123. [PMID: 23867062 PMCID: PMC3751453 DOI: 10.1186/1752-153x-7-123] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Accepted: 07/04/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Despite significant progresses in antimicrobial therapy, infectious diseases caused by bacteria and fungi remain a major worldwide health problem because of the rapid development of resistance to existing antimicrobial drugs. Therefore, there is a constant need for new antimicrobial agents. There are a large number of heterocyclic derivatives containing nitrogen atoms that possess a broad spectrum of biological activities including pyridine and pyridazine, which are two of the most important heterocycles in medicinal chemistry. RESULTS The reaction of 3-oxo-2-arylhydrazonopropanals 2 with ethyl cyanoacetate and malononitrile 3a,b has led to the formation of 2-amino-5-arylazo-6-aryl substituted nicotinates 8a-k as sole isolable products when the aryl group in the arylazo moiety was substituted with an electron-withdrawing group like Cl, Br, NO2. The pyridazinones 10 were formed from the same reaction when the arylazo moiety was phenyl or phenyl substituted with an electron-donating group. The 2-aminoazonicotinates 8 were condensed with DMF-DMA to afford the amidines 13a,b, which then were cyclized to afford the targeted pyrido[2,3-d]pyrimidine derivatives 15a,b, respectively. The structures of all new substances prepared in this investigation were determined by using X-ray crystallographic analysis and spectroscopic methods. Most of the synthesized compounds were tested and evaluated as antimicrobial agents and the results indicated that many of the obtained compounds exhibited high antimicrobial activity comparable to ampicillin, which was used as the reference compound. CONCLUSION A general rule for the synthesis of 2-amino-5-arylazo-6-aryl substituted nicotinic acid and pyridazinone was established using 3-oxo-2-arylhydrazonopropanal as a precursor. Moreover, a novel route to pyrido[2,3-d]pyrimidine was achieved. Most of the synthesized compounds were found to exhibit strong inhibitory effects on the growth of Gram-positive bacteria especially Bacillus subtilis. Compounds 1a, 8a-h, 10a-c, 15b and 16 showed a broad spectrum of antimicrobial activity against B. subtilis.
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Affiliation(s)
- Hamada Mohamed Ibrahim
- Chemistry Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
- Chemistry Department, Faculty of Science, Fayoum University, Fayoum 63514, A. R., Egypt
| | - Haider Behbehani
- Chemistry Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
| | - Mohamed H Elnagdi
- Chemistry Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
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Eftekhari-Sis B, Zirak M, Akbari A. Arylglyoxals in Synthesis of Heterocyclic Compounds. Chem Rev 2013; 113:2958-3043. [DOI: 10.1021/cr300176g] [Citation(s) in RCA: 228] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Bagher Eftekhari-Sis
- Department of Chemistry, Faculty
of Science, University of Maragheh, Golshahr,
P.O. Box. 55181-83111, Maragheh, Iran
| | - Maryam Zirak
- Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran,
Iran
| | - Ali Akbari
- Department of Chemistry, Faculty
of Science, University of Maragheh, Golshahr,
P.O. Box. 55181-83111, Maragheh, Iran
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Saeed MM, Khalil NA, Ahmed EM, Eissa KI. Synthesis and anti-inflammatory activity of novel pyridazine and pyridazinone derivatives as non-ulcerogenic agents. Arch Pharm Res 2012; 35:2077-92. [DOI: 10.1007/s12272-012-1205-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2011] [Revised: 11/27/2011] [Accepted: 12/06/2011] [Indexed: 10/27/2022]
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24
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Urgin K, Aubé C, Pipelier M, Blot V, Thobie-Gautier C, Sengmany S, Lebreton J, Léonel E, Dubreuil D, Condon S. Pd-Catalyzed Chemoselective Cross-Coupling Reaction of Triaryl- or Triheteroarylbismuth Compounds with 3,6-Dihalopyridazines. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200977] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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25
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Design and synthesis of some thieno[2,3-c]pyridazine derivatives of expected anticancer activity. Med Chem Res 2012. [DOI: 10.1007/s00044-012-0258-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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26
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Ramírez-Macías I, Marín C, Chahboun R, Olmo F, Messouri I, Huertas O, Rosales MJ, Gutierrez-Sánchez R, Alvarez-Manzaneda E, Sánchez-Moreno M. In vitro evaluation of new terpenoid derivatives against Leishmania infantum and Leishmania braziliensis. Mem Inst Oswaldo Cruz 2012; 107:370-6. [DOI: 10.1590/s0074-02762012000300012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Accepted: 02/14/2012] [Indexed: 11/22/2022] Open
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27
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Mohamed MS, Awad YEED, El-Hallouty SM, El-Araby M. Design, Synthesis and Cancer Cell Line Activities of Pyrazolo[3,4-<i>b</i>]pyridine Derivatives. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/ojmc.2012.23010] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Khodairy A, Abass M. Substituted quinolinones 15*. Preparation and enzymatic activity of some pyrazoloazines linked to the 4-hydroxy-1-methyl- quinolin-2(1H)-one moiety. Chem Heterocycl Compd (N Y) 2011. [DOI: 10.1007/s10593-011-0806-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Mecadon H, Myrboh B. Potassium Hydroxide Impregnated Alumina (KOH-Alumina) as a Recyclable Catalyst for the Solvent-Free Multicomponent Synthesis of Highly Functionalized Substituted Pyridazines and/or Substituted Pyridazin-3(2H)-ones under Microwave Irradiation. ISRN ORGANIC CHEMISTRY 2011; 2011:406427. [PMID: 24052821 PMCID: PMC3767322 DOI: 10.5402/2011/406427] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Accepted: 03/03/2011] [Indexed: 11/23/2022]
Abstract
The work described herein employs potassium hydroxide impregnated alumina (KOH-alumina) as a mild, efficient, and recyclable catalyst for a one-pot solvent-free and environmentally safer synthesis of 3,4,6-triarylpyridazines and some substituted pyridazines from active methylene carbonyl species, 1,2-dicarbonyls, and hydrazine hydrate by microwave (MW) irradiation. The method offers highly convergent, inexpensive, and functionality-tolerable procedure for rapid access to important pyridazine compounds in good yields.
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Affiliation(s)
- Hormi Mecadon
- Department of Chemistry, North-Eastern Hill University (NEHU), Permanent Campus, Umshing, Mawlai, Shillong 793022, Meghalaya, India
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Ramírez-Macías I, Marín C, Salas JM, Caballero A, Rosales MJ, Villegas N, Rodríguez-Dieguez A, Barea E, Sánchez-Moreno M. Biological activity of three novel complexes with the ligand 5-methyl-1,2,4-triazolo[1,5-a]pyrimidin-7(4H)-one against Leishmania spp. J Antimicrob Chemother 2011; 66:813-9. [PMID: 21393181 DOI: 10.1093/jac/dkq537] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES We report on new 1,2,4-triazolo[1,5-a]pyrimidine complexes that have been developed and examined for both antiproliferative in vitro activity against Leishmania infantum and Leishmania braziliensis, and report their possible mechanism of action on L. infantum and L. braziliensis. RESULTS Antileishmanial effects are described for newly synthesized Cu(II) and Co(II) complexes containing 5-methyl-1,2,4-triazolo[1,5-a]pyrimidin-7(4H)-one (HmtpO) as a ligand. These complexes display a wide structural diversity: (i) mononuclear unit, [Cu(HmtpO)2(H2O)3](ClO4)2·H2O (1); (ii) two-dimensional framework, {[Cu(HmtpO)2(H2O)2](ClO4)(2)·2HmtpO}n (2); and (iii) chains, {[Co(HmtpO)(H2O)3](ClO4)(2)·2H2O}n (3). Compounds 1 and 2 appeared to be the most active against L. infantum (IC50 20.0 and 24.4 μM, respectively), and compounds 1 and 3 the most active against L. braziliensis (IC50 22.1 and 23.5 μM, respectively), with IC50s similar to those of the reference drug, glucantime (18.0 μM for L. infantum and 25.6 μM for L. braziliensis). These compounds were not toxic towards J774.2 macrophages. IC25 decreased infection capacity and severely reduced the multiplication of intracellular amastigotes, following the trend 1>3>2 for L. infantum and 3>1>2 for L. braziliensis. These complexes had an effect on the energy metabolism of the parasites at the level of the NAD+/NADH balance and the organelle membranes, causing their degradation and cell death. CONCLUSIONS Cellular proliferation, metabolic and ultrastructural studies showed that the compounds 2>1>3 were highly active against L. infantum and L. braziliensis.
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Maldonado CR, Marín C, Olmo F, Huertas O, Quirós M, Sánchez-Moreno M, Rosales MJ, Salas JM. In Vitro and in Vivo Trypanocidal Evaluation of Nickel Complexes with an Azapurine Derivative against Trypanosoma cruzi. J Med Chem 2010; 53:6964-72. [DOI: 10.1021/jm100581z] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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33
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Deeb A, Yassin F, Ouf N, Shehta W. Pyridazine derivatives and related compounds. 23*. Synthesis of 3-substituted pyrazolo[3,4-c]pyridazines and their application as disperse dyes. Chem Heterocycl Compd (N Y) 2010. [DOI: 10.1007/s10593-010-0494-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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34
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Chioua M, Soriano E, Samadi A, Marco-Contelles J. Studies on the acetylation of 3,6-diamino-1H-pyrazolo[3,4-b]pyridine-5-carbonitrile derivatives. J Heterocycl Chem 2010. [DOI: 10.1002/jhet.403] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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35
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Homology modeling, molecular dynamic simulation and docking studies of cyclin dependent kinase 1. J Mol Model 2010; 17:219-26. [DOI: 10.1007/s00894-010-0710-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2009] [Accepted: 03/18/2010] [Indexed: 10/19/2022]
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36
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Patnaik S, Dietz HC, Zheng W, Austin C, Marugan JJ. Multi-gram scale synthesis of FR180204. J Org Chem 2010; 74:8870-3. [PMID: 19852504 DOI: 10.1021/jo901835m] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A concise synthesis of the ERK inhibitor FR180204 has been developed. The synthesis consists of six operationally simple steps and can be utilized to make multi-gram quantities of FR180204.
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Affiliation(s)
- Samarjit Patnaik
- National Institutes of Health Chemical Genomics Center, 9800 Medical Center Drive, Rockville, Maryland 20850, USA.
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37
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Radioiodination of 3-iodo-4,5-diphenyl-1H-pyrazolo[3,4-c]pyridazine via isotopic exchange reaction. RADIOCHIM ACTA 2010. [DOI: 10.1524/ract.2010.1700] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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38
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Rimaz M, Khalafy J, Moghadam PN. A Regioselective One-Pot, Three Component Synthesis of 6-Aryl-4-cyano-3(2H)-pyridazinones in Water. Aust J Chem 2010. [DOI: 10.1071/ch09602] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A series of 4-cyano-3(2H)-pyridazinones bearing different aryl substituents in the 6-position of the pyridazinone ring was synthesized regioselectively using a novel efficient one-pot three component reaction of alkyl 2-cyanoacetates with arylglyoxals in the presence of hydrazine hydrate at room temperature in water.
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39
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Zhai X, Zhao YF, Liu YJ, Zhang Y, Xun FQ, Liu J, Gong P. Synthesis and cytotoxicity studies of novel [1,2,4]triazolo[1,5-a]pyrimidine-7-amines. Chem Pharm Bull (Tokyo) 2008; 56:941-5. [PMID: 18591806 DOI: 10.1248/cpb.56.941] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A series of novel N-anilino-5-methyl-2-(3-(5-(alkylaminomethyl)furan-2-yl-methylthio)propyl)-[1,2,4]triazolo-[1,5-a]pyrimidine-7-amine derivatives were synthesized and evaluated for their in vitro cytotoxicity against two cancer cell lines, Bel-7402 and HT-1080. Compounds 9, 14, 19 and 23 possessed marked cytotoxicity, especially 23 (with IC(50) values of 15.0 microM and 7.8 microM against Bel-7402 and HT-1080 cell lines, respectively), which had emerged as lead compound. The activity was found to depend strongly on substitution pattern of the side chains at C-2 position, and 4-triflouromethylanilino substituent at C-7 position was an option for anticancer potency.
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Affiliation(s)
- Xin Zhai
- Key Lab of New Drugs Design and Discovery of Liaoning Province, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, PR China
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40
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El-Rady EA, Barsy MA. New one- pot synthesis of pyrazolo[3,4-c]pyridazine and isoxazolo-[5,4-b]pyridine derivatives from potassium cyanoacetahydroxamate. J Heterocycl Chem 2008. [DOI: 10.1002/jhet.5570450450] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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41
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Olgen S, Isgör YG, Coban T. Synthesis and activity of novel 5-substituted pyrrolo[2,3-d]pyrimidine analogues as pp60(c-Src) tyrosine kinase inhibitors. Arch Pharm (Weinheim) 2008; 341:113-20. [PMID: 18214841 DOI: 10.1002/ardp.200700141] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Therapy with receptor tyrosine kinase inhibitors provides an improved treatment option in a number of diseases such as cancer, myocardial infection, osteoporosis, stroke, and neurodegeneration. We have designed, synthesized, and evaluated a series of novel 2-amino-5-[(benzyl)imino]methyl-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidine-4-one 7a and 2-amino-5-[(substituted-benzyl)imino]methyl-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidine-4-one 7b-e derivatives as potential tyrosine kinase inhibitors. These compounds were synthesized by condensation reaction using 2-tritylamino-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidine-5-carbaldehyde 5 and appropriate benzylamines followed by detritylation. Compounds were evaluated for their inhibitory activity toward tyrosine phosphorylation for the pp60c-Src tyrosine kinase. Compounds 7a, 7d, and 7e demonstrated potent inhibitory activities against pp60c-Src tyrosine kinase with IC50 values of 13.9, 34.5, and 78.4 microM, respectively. Dihalogenated compounds 7d and 7e have 3 to 7-times lower IC50 values than that of the parent compound 7a.
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Affiliation(s)
- Süreyya Olgen
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Ankara, Tandogan-Ankara, Turkey.
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Lin S, Liu Z, Hu Y. Microwave-Enhanced Efficient Synthesis of Diversified 3,6-Disubstituted Pyridazines. ACTA ACUST UNITED AC 2007; 9:742-4. [PMID: 17658899 DOI: 10.1021/cc070046p] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shijun Lin
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
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Blecha JE, Anderson MO, Chow JM, Guevarra CC, Pender C, Penaranda C, Zavodovskaya M, Youngren JF, Berkman CE. Inhibition of IGF-1R and lipoxygenase by nordihydroguaiaretic acid (NDGA) analogs. Bioorg Med Chem Lett 2007; 17:4026-9. [PMID: 17502145 PMCID: PMC2253493 DOI: 10.1016/j.bmcl.2007.04.092] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2007] [Revised: 04/21/2007] [Accepted: 04/25/2007] [Indexed: 11/30/2022]
Abstract
Herein, we pursue the hypothesis that the structure of nordihydroguaiaretic acid (NDGA) can be refined for selective potency against the insulin-like growth factor 1 receptor (IGF-1R) as a potential therapeutic target for breast cancer while diminishing its action against other cellular targets. Thus, a set of NDGA analogs (7a-7h) was prepared and examined for inhibitory potency against IGF-1R kinase and an alternative target, 15-lipoxygenase (15 LOX). The anti-cancer effects of these compounds were determined by their ability to inhibit IGF-1 mediated cell growth of MCF-7 breast cancer cells. The design of the analogs was based upon a cursory Topliss approach in which one of NDGA's aromatic rings was modified with various substituents. Structural modification of one of the two catechol rings of NDGA was found to have little effect upon the inhibitory potency against both kinase activity of the IGF-1R and IGF-1 mediated cell growth of MCF-7 cells. 15-LOX was found to be most sensitive to structural modifications of NDGA. From the limited series of NDGA analogs examined, the compound that exhibited the greatest selectivity for IGF-1 mediated growth compared to 15-LOX inhibition was a cyclic analog 7h with a framework similar to a natural product isolated from Larrea divaricata. The results for 7h are significant because while NDGA displays biological promiscuity, 7h exhibits greater specificity toward the breast cancer target IGF-1R with that added benefit of possessing a 10-fold weaker potency against 15-LOX, an enzyme which has a purported tumor suppressing role in breast cancer. With increased specificity and potency, 7h may serve as a new lead in developing novel therapeutic agents for breast cancer.
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Affiliation(s)
- Joseph E Blecha
- Department of Chemistry & Biochemistry, San Francisco State University, San Francisco, CA 94132-4163, USA
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Zhao XL, Zhao YF, Guo SC, Song HS, Wang D, Gong P. Synthesis and anti-tumor activities of novel [1,2,4]triazolo[1,5-a]pyrimidines. Molecules 2007; 12:1136-46. [PMID: 17873847 PMCID: PMC6149424 DOI: 10.3390/12051136] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2007] [Revised: 05/24/2007] [Accepted: 05/24/2007] [Indexed: 11/16/2022] Open
Abstract
A series of novel [1,2,4]triazolo[1,5-a]pyrimidine derivatives has been designed and synthesized in order to find novel anti-tumor compounds. The structures of all the compounds were confirmed by IR, 1H-NMR, MS and elemental analysis. Their anti-tumor activities against cancer cell lines (HT-1080 and Bel-7402) were tested by the MTT method in vitro. Among them, compound 19 displayed the best anti-tumor activity with IC50 values of 12.3 microM and 6.1 microM against Bel-7402 and HT-1080 cell lines respectively.
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Affiliation(s)
- Xiang-Lin Zhao
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, 110016 Shenyang, Liaoning, P. R. China; Fax: (+86) 24-23986426/23882925, Phone: (+86) 24-23986426; E-mails: ;
| | - Yan-Fang Zhao
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, 110016 Shenyang, Liaoning, P. R. China; Fax: (+86) 24-23986426/23882925, Phone: (+86) 24-23986426; E-mails: ;
| | | | | | | | - Ping Gong
- Author to whom correspondence should be addressed; E-mail:
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Marchetti F, Sayle KL, Bentley J, Clegg W, Curtin NJ, Endicott JA, Golding BT, Griffin RJ, Haggerty K, Harrington RW, Mesguiche V, Newell DR, Noble MEM, Parsons RJ, Pratt DJ, Wang LZ, Hardcastle IR. Structure-based design of 2-arylamino-4-cyclohexylmethoxy-5-nitroso-6-aminopyrimidine inhibitors of cyclin-dependent kinase 2. Org Biomol Chem 2007; 5:1577-85. [PMID: 17571187 DOI: 10.1039/b703241b] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient synthesis of 2-substituted O(4)-cyclohexylmethyl-5-nitroso-6-aminopyrimidines from 6-amino-2-mercaptopyrimidin-4-ol has been developed and used to prepare a range of derivatives for evaluation as inhibitors of cyclin-dependent kinase 2 (CDK2). The structure-activity relationships (SARs) are similar to those observed for the corresponding O(6)-cyclohexylmethoxypurine series with the 2-arylsulfonamide and 2-arylcarboxamide derivatives showing excellent potency. Two compounds, 4-(6-amino-4-cyclohexylmethoxy-5-nitrosopyrimidin-2-ylamino)-N-(2-hydroxyethyl)benzenesulfonamide (7q) and 4-(6-amino-4-cyclohexylmethoxy-5-nitrosopyrimidin-2-ylamino)-N-(2,3-dihydroxypropyl)benzenesulfonamide (7s), were the most potent with IC50 values of 0.7 +/- 0.1 and 0.8 +/- 0.0 nM against CDK2, respectively. The SARs determined in this study are discussed with reference to the crystal structure of 4-(6-amino-4-cyclohexylmethoxy-5-nitrosopyrimidin-2-ylamino)-N-(2,3-dihydroxypropyl)benzenesulfonamide (7j) bound to phosphorylated CDK2/cyclin A.
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Affiliation(s)
- Francesco Marchetti
- Northern Institute for Cancer Research, School of Natural Sciences-Chemistry, Bedson Building, Newcastle University, Newcastle Upon Tyne, UKNE1 7RU
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Nair V, Mathew SC, Biju AT, Suresh E. A novel reaction of the "Huisgen zwitterion" with chalcones and dienones: an efficient strategy for the synthesis of pyrazoline and pyrazolopyridazine derivatives. Angew Chem Int Ed Engl 2007; 46:2070-3. [PMID: 17286329 DOI: 10.1002/anie.200604025] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Vijay Nair
- Organic Chemistry Section, Regional Research Laboratory, CSIR, Trivandrum 695019, India.
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Nair V, Mathew S, Biju A, Suresh E. A Novel Reaction of the “Huisgen Zwitterion” with Chalcones and Dienones: An Efficient Strategy for the Synthesis of Pyrazoline and Pyrazolopyridazine Derivatives. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200604025] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Goodnow RA, Gillespie P. 1Hit and Lead Identification: Efficient Practices for Drug Discovery. PROGRESS IN MEDICINAL CHEMISTRY 2007; 45:1-61. [PMID: 17280901 DOI: 10.1016/s0079-6468(06)45501-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Robert A Goodnow
- Discovery Chemistry, Roche Research Center, Nutley, NJ 07110-1199, USA
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Gao H, Zhang ZH, Jiang P, Li XR. Synthesis, crystal structures and properties of the novel mononuclear copper(II) and tetranuclear cobalt(II) complexes with 3,6-bis-(3,5-dimethylpyrazolyl)-pyridazine. TRANSIT METAL CHEM 2006. [DOI: 10.1007/s11243-006-0114-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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