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Investigation of the electronic properties of solvents (water, benzene, methanol) using IEFPCM model, spectroscopic investigation with docking and MD simulations of a thiadiazole derivative with anti-tumor activities. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118061] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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2
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Synthesis, Antimicrobial, and Anti-Proliferative Activities of Novel 4-(Adamantan-1-yl)-1-arylidene-3-thiosemicarbazides, 4-Arylmethyl N'-(Adamantan-1-yl)piperidine-1-carbothioimidates, and Related Derivatives. Molecules 2019; 24:molecules24234308. [PMID: 31779091 PMCID: PMC6930481 DOI: 10.3390/molecules24234308] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 11/12/2019] [Accepted: 11/20/2019] [Indexed: 01/12/2023] Open
Abstract
The reaction of 4-(adamantan-1-yl)-3-thiosemicarbazide 3 with various aromatic aldehydes yielded the corresponding thiosemicarbazones 4a–g. 1-Adamantyl isothiocyanate 2 was reacted with 1-methylpiperazine or piperidine to yield the corresponding N-(adamantan-1-yl)carbothioamides 5 and 6, respectively. The latter was reacted with benzyl or substituted benzyl bromides to yield the S-arylmethyl derivatives 7a–c. Attempted cyclization of 1,3-bis(adamantan-1-yl)thiourea 8 with chloroacetic acid via prolonged heating to the corresponding thiazolidin-4-one 9 resulted in desulfurization of 8 to yield its urea analogue 10. The thiazolidin-4-one 9 and its 5-arylidene derivatives 11a,b were obtained via microwave-assisted synthesis. The in vitro antimicrobial activity of the synthesized compounds was evaluated against a panel of Gram-positive and Gram-negative bacteria and yeast-like pathogenic fungus Candida albicans. Compounds 7a–c displayed marked broad spectrum antibacterial activities (minimal inhibitory concentration (MIC), 0.5–32 μg/mL) and compounds 4a and 4g showed good activity against Candida albicans. Nine representative compounds were evaluated for anti-proliferative activity towards three human tumor cell lines. Compounds 7a–c displayed significant generalized anti-proliferative activity against all the tested cell lines with IC50 < 10 μM.
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Al-Omary FAM, Ghabbour HA, AlRabiah H, Al-Wahaibi LH, El-Emam AA. Crystal structure of 6-(4-chlorophenyl)-3-(thiophen-2-yl)-[1,2,4]triazolo[3,4- b][1,3,4]-thiadiazole, C 13H 7ClN 4S 2. Z KRIST-NEW CRYST ST 2016. [DOI: 10.1515/ncrs-2016-0010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C13H7ClN4S2, monoclinic, P21/c (no. 14), a = 10.2342 (9) Å, b = 11.9953(10) Å, c = 12.0980(9) Å, β = 116.283(6)°, V = 1331.6(2) Å3, Z = 4, R
gt
(F) = 0.0573, wR
ref
(F
2
) = 0.1675, T = 100 K.
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Affiliation(s)
- Fatmah A. M. Al-Omary
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O.Box 2457, Riaydh 11451, Saudi Arabia
| | | | - Haitham AlRabiah
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O.Box 2457, Riaydh 11451, Saudi Arabia
| | - Lamya H. Al-Wahaibi
- Department of Chemistry, College of Sciences, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Ali A. El-Emam
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O.Box 2457, Riaydh 11451, Saudi Arabia
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4
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Al-Alshaikh MA, Ghabbour HA, Abdelbaky MSM, García-Granda S, El-Emam AA. Crystal structure of 6-(2-fluorophenyl)-3-phenyl-[1,2,4]-triazolo[3,4- b][1,3,4]thiadiazole, C 15H 9FN 4S. Z KRIST-NEW CRYST ST 2016. [DOI: 10.1515/ncrs-2015-0236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C15H9FN4S, orthorhombic, Pna21 (no. 33), a = 18.9361(2) Å, b = 11.5248(1) Å, c = 6.0142(1) Å, V = 1312.52(3) Å3, Z = 4, R
gt
(F) = 0.0263, wR
ref
(F
2
) = 0.0706, T = 100 K.
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Affiliation(s)
- Monirah A. Al-Alshaikh
- Department of Chemistry, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | | | - Mohammed S. M. Abdelbaky
- Departamento de Química Física Analítica, Facultad de Química, Universidad de Oviedo – CINN, C/Julán Clavería, 8, 33006 Oviedo, (Asturias), Spain
| | - Santiago García-Granda
- Departamento de Química Física Analítica, Facultad de Química, Universidad de Oviedo – CINN, C/Julán Clavería, 8, 33006 Oviedo, (Asturias), Spain
| | - Ali A. El-Emam
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh 11451, Saudi Arabia
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Alanazi AM, Al-Abdullah ES, El-Brollosy NR, El-Emam AA. Unusual Sulfuric Acid-Induced Thiol Oxidation on Dehydrative Cyclization of Potassium N′-(1-Adamantylcarbonyl)Dithiocarbazate at Room Temperature. PHOSPHORUS SULFUR 2014. [DOI: 10.1080/10426507.2013.829829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Amer M. Alanazi
- a Department of Pharmaceutical Chemistry, College of Pharmacy , King Saud University , Riyadh , 11451 , Saudi Arabia
| | - Ebtehal S. Al-Abdullah
- a Department of Pharmaceutical Chemistry, College of Pharmacy , King Saud University , Riyadh , 11451 , Saudi Arabia
| | - Nasser R. El-Brollosy
- a Department of Pharmaceutical Chemistry, College of Pharmacy , King Saud University , Riyadh , 11451 , Saudi Arabia
| | - Ali A. El-Emam
- a Department of Pharmaceutical Chemistry, College of Pharmacy , King Saud University , Riyadh , 11451 , Saudi Arabia
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Lahsasni S, El-Emam AA, El-Brollosy NR, Quah CK, Fun HK. 3-(1-Adamant-yl)-4-amino-1-(2-benzoyl-1-phenyl-eth-yl)-1H-1,2,4-triazol-5(4H)-thione. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o1439-40. [PMID: 22590320 PMCID: PMC3344558 DOI: 10.1107/s1600536812015929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Accepted: 04/12/2012] [Indexed: 12/04/2022]
Abstract
In the title compound, C(27)H(30)N(4)OS, the 3-(adamantan-1-yl)-4-amino-1H-1,2,4-triazole-5(4H)-thione unit and the O atom are each disordered over two sets of sites with refined site-occupancies of 0.7630 (13) and 0.2370 (13). The 1,2,4-triazole ring of the major component forms dihedral angles of 62.61 (17) and 61.93 (16)° with the benzene rings, while that of the minor component makes corresponding angles of 86.3 (4) and 79.1 (4)°. The dihedral angle between the benzene rings is 39.21 (16)°. The mol-ecular structure is stabilized by an intra-molecular C-H⋯N hydrogen bond, which generates an S(6) ring motif. In the crystal, mol-ecules are linked into inversion dimers by pairs of N-H⋯S hydrogen bonds.
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Affiliation(s)
- Siham Lahsasni
- Department of Chemistry, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Ali A. El-Emam
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Nasser R. El-Brollosy
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ching Kheng Quah
- X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia
| | - Hoong-Kun Fun
- X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia
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El-Emam AA, Alrashood KA, Al-Omar MA, Al-Tamimi AMS. Synthesis and antimicrobial activity of N'-heteroarylidene-1-adamantylcarbohydrazides and (±)-2-(1-adamantyl)-4-acetyl-5-[5-(4-substituted phenyl-3-isoxazolyl)]-1,3,4-oxadiazolines. Molecules 2012; 17:3475-83. [PMID: 22426528 PMCID: PMC6268319 DOI: 10.3390/molecules17033475] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Revised: 02/16/2012] [Accepted: 03/06/2012] [Indexed: 11/16/2022] Open
Abstract
The reaction of adamantane-1-carbohydrazide (1) with heterocyclic aldehydes, namely 5-(4-chlorophenyl)isoxazole-3-carboxaldehyde (2a), 5-(4-methylphenyl)isoxazole-3-carboxaldehyde (2b), 5-(4-methoxyphenyl)isoxazole-3-carboxaldehyde (2c), 1H-imidazole-2-carboxaldehyde and 2-butyl-4-chloro-1H-imidazole-5-carboxaldehyde, in ethanol, yielded the corresponding N'-heteroarylidene-1-adamantylcarbohydrazides 3a, 3b, 3c, 4 and 5, respectively, in good yields. The 4-acetyl-1,3,4-oxadiazoline analogues 6a‑c were prepared in 48-55% yields by heating their corresponding N'-heteroarylidene-1-adamantylcarbohydrazides 3a-c with acetic anhydride for two hours. Compounds 3a-c, 4, 5 and 6a-c were tested for in vitro activities against a panel of Gram-positive and Gram-negative bacteria and the yeast-like pathogenic fungus Candida albicans. Compounds 4 and 5 displayed potent broad-spectrum antimicrobial activity, while compounds 3a-c showed good activity against the Gram-positive bacteria.
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Affiliation(s)
- Ali A El-Emam
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
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Kadi AA, Al-Abdullah ES, Shehata IA, Habib EE, Ibrahim TM, El-Emam AA. Synthesis, antimicrobial and anti-inflammatory activities of novel 5-(1-adamantyl)-1,3,4-thiadiazole derivatives. Eur J Med Chem 2010; 45:5006-11. [PMID: 20801553 DOI: 10.1016/j.ejmech.2010.08.007] [Citation(s) in RCA: 139] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2010] [Revised: 08/04/2010] [Accepted: 08/06/2010] [Indexed: 10/19/2022]
Abstract
New 1-adamanyl-1,3,4-thiadiazole derivatives namely, 5-(1-adamantyl)-1,3,4-thiadiazoline-2-thione 3, 5-(1-adamantyl)-3-(benzyl- or 4-substituted benzyl)-1,3,4-thiadiazoline-2-thione 4a-d, 5-(1-adamantyl)-3-(4-substituted-1-piperazinylmethyl)-1,3,4-thiadiazoline-2-thiones 5a-c, 2-[5-(1-adamantyl)-2-thioxo-1,3,4-thiadiazolin-3-yl]acetic acid 7, (±)-2-[5-(1-adamantyl)-2-thioxo-1,3,4-thiadiazolin-3-yl]propionic acid 9, 3-[5-(1-adamantyl)-2-thioxo-1,3,4-thiadiazolin-3-yl]propionic acid 11, N-[5-(1-adamantyl)-1,3,4-thiadiazol-2-yl]-N'-arylthioureas 15a-c and 5-(1-adamantyl)-1,3,4-thiadiazoline-2-one 16, were synthesized and tested for in vitro activities against a panel of gram-positive and gram-negative bacteria and the yeast-like pathogenic fungus Candida albicans. Compounds 7, 9, 15b and 15c displayed marked activity against the tested gram-positive bacteria, while compound 3 was highly active against the tested gram-negative bacteria. Compounds 4b, 7 and 15c were weakly or moderately active against C. albicans. In addition, the in vivo anti-inflammatory activity of the synthesized compounds was determined using the carrageenan-induced paw oedema method in rats. The propionic acid derivative 9 produced good dose-dependent anti-inflammatory activity.
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Affiliation(s)
- Adnan A Kadi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh 11451, Saudi Arabia
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9
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Al-Tamimi AMS, Bari A, Al-Omar MA, Alrashood KA, El-Emam AA. 3-(1-Adamant-yl)-1-{[4-(2-meth-oxy-phen-yl)piperazin-1-yl]meth-yl}-4-methyl-1H-1,2,4-triazole-5(4H)-thione. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o1756. [PMID: 21587972 PMCID: PMC3006920 DOI: 10.1107/s1600536810022695] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2010] [Accepted: 06/13/2010] [Indexed: 11/10/2022]
Abstract
The title compound, C(25)H(35)N(5)OS, is a functionalized triazoline-3-thione with substituted piperazine and adamantyl substituents attached at the 2- and 5-positions, respectively, of a triazole spacer with an approximately C-shaped conformation of the mol-ecule. The piperazine ring adopts a chair conformation.
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Affiliation(s)
- Abdul-Malek S Al-Tamimi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
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10
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Al-Omar MA. Synthesis and antimicrobial activity of new 5-(2-thienyl)-1,2,4-triazoles and 5-(2-thienyl)-1,3,4-oxadiazoles and related derivatives. Molecules 2010; 15:502-14. [PMID: 20110905 PMCID: PMC6257108 DOI: 10.3390/molecules15010502] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2009] [Revised: 01/05/2010] [Accepted: 01/11/2010] [Indexed: 11/22/2022] Open
Abstract
New 5-(2-thienyl)-1,2,4-triazoles and 5-(2-thienyl)-1,3,4-oxadiazoles namely, N-[3-mercapto-5-(2-thienyl)-1,2,4-triazol-4-yl]-N'-arylthioureas 4a–e, 2-arylamino-5-(2-thienyl)-1,2,4-triazolo[3,4-b][1,3,4]thiadiazoles 5a–e, 3-arylaminomethyl-5-(2-thienyl)-1,3,4-oxadiazoline-2-thiones 7a–e, 3-(N-substituted anilinomethyl)-5-(2-thienyl)-1,3,4-oxadiazoline-2-thiones 8a, b and 3-(4-substituted-1-piperazinylmethyl)-5-(2-thienyl)-1,3,4-oxadiazoline-2-thiones 9a–f, were prepared. The synthesized compounds were tested for in vitro activities against certain strains of Gram-positive and Gram-negative bacteria and the yeast-like pathogenic fungus Candida albicans. Compound 9a displayed marked broad spectrum antibacterial activity, while compounds 4d, 5e, 7b, 7c, 7d, 9b, 9c and 9d were highly active against the tested Gram-positive bacteria. None of the synthesized compounds were proved to be significantly active against Candida albicans.
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Affiliation(s)
- Mohamed A Al-Omar
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
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