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Al-Wahaibi LH, Blacque O, Tiekink ERT, El-Emam AA. Crystal structure of 2-(adamantan-1-yl)-5-(3,5-dinitrophenyl)-1,3,4-oxadiazole, C 18H 18N 4O 5. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2022-0263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C18H18N4O5, monoclinic, P21/c (no. 14), a = 11.7553(8) Å, b = 6.4876(4) Å, c = 22.3442(15) Å, β = 91.263(7)°, V = 1703.64(19) Å3, Z = 4, Rgt
(F) = 0.0531, wRref
(F
2) = 0.1376, T = 160 K.
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Affiliation(s)
- Lamya H. Al-Wahaibi
- Department of Chemistry , College of Sciences, Princess Nourah bint Abdulrahman University , Riyadh 11671 , Saudi Arabia
| | - Olivier Blacque
- Department of Chemistry , University of Zurich , Winterthurerstrasse 190, 8057 Zurich , Switzerland
| | - Edward R. T. Tiekink
- Research Centre for Crystalline Materials, School of Medical and Life Sciences, Sunway University , 47500 Bandar Sunway , Selangor Darul Ehsan , Malaysia
| | - Ali A. El-Emam
- Department of Medicinal Chemistry , Faculty of Pharmacy, Mansoura University , Mansoura 35516 , Egypt
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2
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Electrophilically activated nitroalkanes in the synthesis of substituted 1,3,4-oxadiazoles from amino acid derivatives. Chem Heterocycl Compd (N Y) 2022. [DOI: 10.1007/s10593-022-03053-2] [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]
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3
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Szulczyk D, Tomaszewski P, Jóźwiak M, Kozioł AE, Lis T, Collu D, Iuliano F, Struga M. Synthesis and Biological Activities of Ethyl 2-(2-pyridylacetate) Derivatives Containing Thiourea, 1,2,4-triazole, Thiadiazole and Oxadiazole Moieties. Molecules 2017; 22:molecules22030409. [PMID: 28272311 PMCID: PMC6155191 DOI: 10.3390/molecules22030409] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 02/16/2017] [Accepted: 03/01/2017] [Indexed: 11/24/2022] Open
Abstract
Thirty six novel heterocyclic derivatives of ethyl 2-(2-pyridylacetate) were efficiently synthesized. The new compounds involve the linkage of a 2-pyridyl ring with thiosemicarbazide (compounds 1–7), 1,2,4-triazole (compounds 1a–7a), 1,3,4-thiadiazole (compounds 1b–7b), and 1,3,4-oxadiazole (compounds 1f–7f) moieties. The last group of compounds 1e–7e involves the connection of a 2-pyridyl ring with 1,2,4-triazole and thiourea. 1H-NMR, 13C-NMR and MS methods were used to confirm the structures of the obtained derivatives. The molecular structures of 3, 3b, 7a and 7f were further confirmed by X-ray crystallography. All obtained compounds were tested in vitro against a number of microorganisms, including Gram-positive cocci, Gram-negative rods and Candida albicans. In addition, the obtained compounds were tested for cytotoxicity and antiviral activity against HIV-1.
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Affiliation(s)
- Daniel Szulczyk
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, 02-097 Warsaw, Poland.
- Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland.
| | - Piotr Tomaszewski
- Department of Biochemistry, Second Faculty of Medicine, Medical University of Warsaw, 02-097 Warsaw, Poland.
| | - Michał Jóźwiak
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, 02-097 Warsaw, Poland.
- Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland.
- Department of Biochemistry, Second Faculty of Medicine, Medical University of Warsaw, 02-097 Warsaw, Poland.
| | - Anna E Kozioł
- Faculty of Chemistry, Maria Curie-Sklodowska University, 20-031 Lublin, Poland.
| | - Tadeusz Lis
- Faculty of Chemistry, University of Wroclaw, 50-383 Wroclaw, Poland.
| | - David Collu
- Department of Life and Environmental Sciences, Section of Microbiology and Virology, University of Cagliari, 09042 Cittadella Universitaria Monserrato, Italy.
| | - Filippo Iuliano
- Department of Molecular Medicine, Institute of Virology, Slovak Academy of Sciences, Dubravska cesta 9, 845 05 Bratislava, Slovak.
| | - Marta Struga
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, 02-097 Warsaw, Poland.
- Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Banacha 1B, 02-097 Warsaw, Poland.
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Khan MUH, Hameed S, Farman M, Al-Masoudi NA, Stoeckli-Evans H. Synthesis, anti-HIV activity and molecular modeling study of 3-aryl-6-adamantylmethyl-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole derivatives. ACTA ACUST UNITED AC 2015. [DOI: 10.1515/znb-2015-0032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A series of novel 3-aryl-6-adamantylmethyl-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazoles 6a–l were synthesized by a simple method with the aim of developing novel HIV non-nucleoside reverse transcriptase inhibitors. All the synthesized compounds were structurally confirmed by spectral analyses. The structure of 6a was unambiguously verified by X-ray structure determination. The synthesized compounds were evaluated for their anti-HIV activity and four analogs displayed moderate inhibitory activity with EC50 values ranging from 10.10 to 12.40 μg mL–1. Molecular docking of 6g with HIV-1 reverse transcriptase was studied to rationalize some structure-activity relationships (SARs).
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Affiliation(s)
| | - Shahid Hameed
- Department of Chemistry, Quaid-i-Azam University, Islamabad-45320, Pakistan
| | - Muhammad Farman
- Department of Chemistry, Quaid-i-Azam University, Islamabad-45320, Pakistan
| | - Najim A. Al-Masoudi
- Department of Chemistry, College of Science, University of Basrah, Basrah, Iraq
| | - Helen Stoeckli-Evans
- Institute of Physics, University of Neuchâtel, Rue Emile-Argand 11, CH-2009 Neuchâtel, Switzerland
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Synthesis and anticancer activity of N-aryl-5-substituted-1,3,4-oxadiazol-2-amine analogues. BIOMED RESEARCH INTERNATIONAL 2014; 2014:814984. [PMID: 24977160 PMCID: PMC4058187 DOI: 10.1155/2014/814984] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 04/04/2014] [Accepted: 05/12/2014] [Indexed: 11/18/2022]
Abstract
In continuance of our search for anticancer agents, we report herein the synthesis and anticancer activity of some novel oxadiazole analogues. The compounds were screened for anticancer activity as per National Cancer Institute (NCI US) protocol on leukemia, melanoma, lung, colon, CNS, ovarian, renal, prostate, and breast cancers cell lines. N-(2,4-Dimethylphenyl)-5-(4-methoxyphenyl)-1,3,4-oxadiazol-2-amine (4s) showed maximum activity with mean growth percent (GP) of 62.61 and was found to be the most sensitive on MDA-MB-435 (melanoma), K-562 (leukemia), T-47D (breast cancer), and HCT-15 (colon cancer) cell lines with GP of 15.43, 18.22, 34.27, and 39.77, respectively. Maximum GP was observed on MDA-MB-435 (melanoma) cell line (GP = 6.82) by compound N-(2,4-dimethylphenyl)-5-(4-hydroxyphenyl)-1,3,4-oxadiazol-2-amine (4u).
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