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Ahmed NM, Mohamed MS, Awad SM, Abd El-Hameed RH, El-tawab NAA, Gaballah MS, Said AM. Design, synthesis, molecular modelling and biological evaluation of novel 6-amino-5-cyano-2-thiopyrimidine derivatives as potent anticancer agents against leukemia and apoptotic inducers. J Enzyme Inhib Med Chem 2024; 39:2304625. [PMID: 38348824 PMCID: PMC10866072 DOI: 10.1080/14756366.2024.2304625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 01/08/2024] [Indexed: 02/15/2024] Open
Abstract
Herein, a novel series of 6-amino-5-cyano-2-thiopyrimidines and condensed pyrimidines analogues were prepared. All the synthesized compounds (1a-c, 2a-c, 3a-c, 4a-r and 5a-c) were evaluated for in vitro anticancer activity by the National Cancer Institute (NCI; MD, USA) against 60 cell lines. Compound 1c showed promising anticancer activity and was selected for the five-dose testing. Results demonstrated that compound 1c possessed broad spectrum anti-cancer activity against the nine cancerous subpanels tested with selectivity ratio ranging from 0.7 to 39 at the GI50 level with high selectivity towards leukaemia. Mechanistic studies showed that Compound 1c showed comparable activity to Duvelisib against PI3Kδ (IC50 = 0.0034 and 0.0025 μM, respectively) and arrested cell cycle at the S phase and displayed significant increase in the early and late apoptosis in HL60 and leukaemia SR cells. The necrosis percentage showed a significant increase from 1.13% to 3.41% in compound 1c treated HL60 cells as well as from 1.51% to 4.72% in compound 1c treated leukaemia SR cells. Also, compound 1c triggered apoptosis by activating caspase 3, Bax, P53 and suppressing Bcl2. Moreover, 1c revealed a good safety profile against human normal lung fibroblast cell line (WI-38 cells). Molecular analysis of Duvelisib and compound 1c in PI3K was performed. Finally, these results suggest that 2-thiopyrimidine derivative 1c might serve as a model for designing novel anticancer drugs in the future.
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Affiliation(s)
- Naglaa M. Ahmed
- Pharmaceutical Organic Chemistry Department, Helwan University, Ein-Helwan, Egypt
| | - Mosaad S. Mohamed
- Pharmaceutical Organic Chemistry Department, Helwan University, Ein-Helwan, Egypt
| | - Samir M. Awad
- Pharmaceutical Organic Chemistry Department, Helwan University, Ein-Helwan, Egypt
| | | | | | - Mohamed S. Gaballah
- Biochemistry and Molecular Biology Department, Helwan University, Ein-Helwan, Egypt
| | - Ahmed M. Said
- Pharmaceutical Organic Chemistry Department, Helwan University, Ein-Helwan, Egypt
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, USA
- Athenex Inc, Buffalo, NY, USA
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Abd El-Hameed RH, Mohamed MS, Awad SM, Hassan BB, Khodair MAEF, Mansour YE. Novel benzo chromene derivatives: design, synthesis, molecular docking, cell cycle arrest, and apoptosis induction in human acute myeloid leukemia HL-60 cells. J Enzyme Inhib Med Chem 2023; 38:405-422. [DOI: 10.1080/14756366.2022.2151592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Affiliation(s)
- Rania H. Abd El-Hameed
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Mosaad S. Mohamed
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Samir M. Awad
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Bardes B. Hassan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | | | - Yara E. Mansour
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt
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Abbas SY, Abd El-Aziz MM, Awad SM, Mohamed MS. Synthesis and evaluation of antipyrine derivatives bearing a thiazole moiety as antibacterial and antifungal agents. SYNTHETIC COMMUN 2023:1-11. [DOI: 10.1080/00397911.2023.2248306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Indexed: 09/02/2023]
Affiliation(s)
- Samir Y. Abbas
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Maha M. Abd El-Aziz
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Samir M. Awad
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Mosaad S. Mohamed
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt
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Zohny YM, Awad SM, Rabie MA, Alsaidan OA. Design, Synthesis, Molecular Modeling, and Biological Evaluation of Novel Pyrimidine Derivatives as Potential Calcium Channel Blockers. Molecules 2023; 28:4869. [PMID: 37375424 DOI: 10.3390/molecules28124869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 06/13/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023] Open
Abstract
Pyrimidines play an important role in modern medical fields. They have a wide spectrum of biological activities such as antimicrobial, anticancer, anti-allergic, anti-leishmanial, antioxidant agents and others. Moreover, in recent years, 3,4-dihydropyrimidin-2(1H)ones have attracted researchers to synthesize them via Biginelli reaction and evaluate their antihypertensive activities as bioisosters of Nifedipine, which is a famous calcium channel blocker. Our new target compounds were prepared through one-pot reaction of thiourea 1, ethyl acetoacetate 2 and/or 1H-indole-2-carbaldehyde, 2-chloroquinoline-3-carbaldehyde, 1,3-diphenyl-1H-pyrazole-4-carbaldehyde, 3a-c in acid medium (HCl) yielding pyrimidines 4a-c, which in turn were hydrolyzed to carboxylic acid derivatives 5a-c which were chlorinated by SOCl2 to give acyl chlorides 6a-c. Finally, the latter were reacted with some selected aromatic amines, namely, aniline, p-toluidine and p-nitroaniline, producing amides 7a-c, 8a-c, and 9a-c. The purity of the prepared compounds was examined via TLC monitoring, and structures were confirmed by different spectroscopic techniques such as IR, 1HNMR, 13CNMR, and mass spectroscopy. The in vivo evaluation of the antihypertensive activity revealed that compounds 4c, 7a, 7c, 8c, 9b and 9c had comparable antihypertensive properties with Nifedipine. On the other hand, the in vitro calcium channel blocking activity was evaluated by IC50 measurement and results revealed that compounds 4c, 7a, 7b, 7c, 8c, 9a, 9b, and 9c had comparable calcium channel blocking activity with the reference Nifedipine. Based on the aforementioned biological results, we selected compounds 8c and 9c to be docked onto Ryanodine and dihydropyridine receptors. Furthermore, we developed a structure-activity relationship. The designed compounds in this study show promising activity profiles in reducing blood pressure and as calcium channel blockers, and could be considered as new potential antihypertensive and/or antianginal agents.
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Affiliation(s)
- Yasser M Zohny
- Pharmaceutical Sciences Department, College of Pharmacy, Shaqra University, Dawadmi 11911, Saudi Arabia
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt
| | - Samir M Awad
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt
| | - Maha A Rabie
- Pharmacy Practice Department, College of Pharmacy, Shaqra University, Dawadmi 11911, Saudi Arabia
- Pharmacology and Toxicology Department, School of Pharmacy, Cairo University, Cairo 11795, Egypt
| | - Omar Awad Alsaidan
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka 72341, Saudi Arabia
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Ahmed NM, Lotfallah AH, Gaballah MS, Awad SM, Soltan MK. Novel 2-Thiouracil-5-Sulfonamide Derivatives: Design, Synthesis, Molecular Docking, and Biological Evaluation as Antioxidants with 15-LOX Inhibition. Molecules 2023; 28:molecules28041925. [PMID: 36838913 PMCID: PMC9963659 DOI: 10.3390/molecules28041925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 02/15/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023] Open
Abstract
New antioxidant agents are urgently required to combat oxidative stress, which is linked to the emergence of serious diseases. In an effort to discover potent antioxidant agents, a novel series of 2-thiouracil-5-sulfonamides (4-9) were designed and synthesized. In line with this approach, our target new compounds were prepared from methyl ketone derivative 3, which was used as a blocking unit for further synthesis of a novel series of chalcone derivatives 4a-d, thiosemicarbazone derivatives 5a-d, pyridine derivatives 6a-d and 7a-d, bromo acetyl derivative 8, and thiazole derivatives 9a-d. All compounds were evaluated as antioxidants against 2,2-diphenyl-1-picrylhydrazyl (DPPH), hydrogen peroxide (H2O2), lipid peroxidation, and 15-lipoxygenase (15-LOX) inhibition activity. Compounds 5c, 6d, 7d, 9b, 9c, and 9d demonstrated significant RSA in all three techniques in comparison with ascorbic acid and 15-LOX inhibitory effectiveness using quercetin as a standard. Molecular docking of compound 9b endorsed its proper binding at the active site pocket of the human 15-LOX which explains its potent antioxidant activity in comparison with standard ascorbic acid.
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Affiliation(s)
- Naglaa M. Ahmed
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo 11795, Egypt
- Correspondence: or ; Tel.: +20-012-4228559 or Tel./Fax: +20-202-5541601
| | - Ahmed H. Lotfallah
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Sinai University, El-Arish 16020, Egypt
| | - Mohamed S. Gaballah
- Biochemistry Department, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo 11795, Egypt
| | - Samir M. Awad
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo 11795, Egypt
| | - Moustafa K. Soltan
- Ministry of Health, Oman College of Health Sciences, Muscat 132, Oman
- Medicinal Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
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Abbas SY, Abd El-Aziz MM, Awad SM, Mohamed MS. Structural hybrids of sulfonamide and thiazole moieties: Synthesis and evaluation of antimicrobial activity. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2150086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Samir Y. Abbas
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Maha M. Abd El-Aziz
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Samir M. Awad
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Mosaad S. Mohamed
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt
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Awad SM, Mohamed MS, Khodair MAEF, El-Hameed RHA. Synthesis and Evaluation of Cytotoxic Activity of Certain Benzo[h]chromene Derivatives. Anticancer Agents Med Chem 2021; 21:963-986. [PMID: 32981512 DOI: 10.2174/1871520620666200925103742] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 07/21/2020] [Accepted: 08/08/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Benzo[h]chromenes attracted great attention because of their widespread biological activities, including anti-proliferate activity, and the discovery of novel effective anti-cancer agents is imperative. OBJECTIVE The main objective was to synthesize new benzo[h]chromene derivatives and some reported derivatives, and then test all of them for their anti-cancer activities. METHODS The structures of the newly synthesized derivatives were confirmed by elemental and spectral analysis (IR, Mass, 1H-NMR and 13C-NMR). 35 compounds were selected by the National Cancer Institute (NCI) for single-dose testing against 60 cell lines and 3 active compounds were selected for 5-doses testing. Also, these 3 compounds were tested as EGFR-inhibitors; using sorafenib as standard, and as Tubulin polymerization inhibitors using colchicines as a standard drug. Moreover, molecular docking study for the most active derivative on these 2 enzymes was also carried out. RESULTS Compounds 1a, 1c and 2b have the highest activities among all 35 tested compounds especially compound 1c. CONCLUSION compound 1c has promising anti-cancer activities compared to the used standards and may need further modification and investigations.
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Affiliation(s)
- Samir M Awad
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Helwan, Cairo, Egypt
| | - Mosaad S Mohamed
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Helwan, Cairo, Egypt
| | | | - Rania H Abd El-Hameed
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Helwan, Cairo, Egypt
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Awad SM, Attallah DA, Salama RH, Mahran AM, Abu El-Hamed E. Serum levels of psoriasin (S100A7) and koebnerisin (S100A15) as potential markers of atherosclerosis in patients with psoriasis. Clin Exp Dermatol 2018; 43:262-267. [PMID: 29333662 DOI: 10.1111/ced.13370] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/30/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND Psoriasin (S100A7) and koebnerisin (S100A15) are proinflammatory proteins upregulated in psoriasis, but their relation to atherosclerosis remains unclear. AIM To evaluate the role of serum psoriasin and koebnerisin as possible markers for subclinical atherosclerosis in patients with psoriasis. METHODS Serum levels of psoriasin and koebnerisin were measured by ELISA in 45 patients with psoriasis and in 45 healthy controls (HCs). Intima-media thickness (IMT) of the right and left common carotid arteries was measured to detect the presence of subclinical atherosclerosis. Clinical severity of psoriasis was estimated using the Psoriasis Area and Severity Index (PASI). RESULTS Compared with HCs, patients with psoriasis had significantly higher levels of psoriasin (26.61 ± 22.45 ng/mL vs. 6.31 ± 1.68 ng/mL, P < 0.001) and koebnerisin (21.2 ± 13.12 ng/mL vs. 12.2 ± 4.67 ng/mL, P = 0.001), and significantly higher IMT values (1.07 ± 0.4 mm vs. 0.61 ± 0.1 mm, P < 0.001). A positive correlation was observed between IMT and PASI (r = 0.78, P < 0.001), serum psoriasin (r = 0.48, P > 0.01) and serum koebnerisin (r = 0.48, P < 0.01). Patients with psoriasis with subclinical atherosclerosis had higher serum levels of koebnerisin compared with patients without subclinical atherosclerosis (P = 0.04), which was not observed for psoriasin (P = 0.94). CONCLUSION Serum psoriasin and koebnerisin correlate with IMT, underlining their value as a potential link between psoriasis and atherosclerosis. In particular, koebnerisin seems to be a useful marker of subclinical atherosclerosis in patients with psoriasis.
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Affiliation(s)
- S M Awad
- Department of Dermatology and Venereology, Assiut University Hospital, Assiut, Egypt
| | - D A Attallah
- Department of Dermatology and Venereology, Assiut University Hospital, Assiut, Egypt
| | - R H Salama
- Department of Medical Biochemistry, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - A M Mahran
- Department of Dermatology and Venereology, Assiut University Hospital, Assiut, Egypt
| | - E Abu El-Hamed
- Department of Diagnostic Radiology, Assiut University Hospital, Assiut, Egypt
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Shamroukh AH, Rashad AE, Ali HS, Awad SM. Studies on the Reactivity of Amino-1-(6-phenyl-pyridazin-3-yl)-1H-pyrazole-4-carboxylic Acid Hydrazide Towards Some Reagents for Biological Evaluation. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1724] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ahmed H. Shamroukh
- Photochemistry Department; National Research Center; Dokki Cairo Egypt
- Chemistry Department, Faculty of Science; Hail University; Saudi Arabia
| | - Aymn E. Rashad
- Photochemistry Department; National Research Center; Dokki Cairo Egypt
- Chemistry Department, Faculty of Science and Human Studies, Hurraiymla; Shaqra University; Saudi Arabia
| | - Hatem S. Ali
- Department of Food Science and Nutrition, College of Food Science and Agriculture; King Saud University; Saudi Arabia
| | - Samir M. Awad
- Organic Chemistry Department, Faculty of Pharmacy; Helwan University; Cairo Egypt
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Rashad AE, Shamroukh AH, Sayed HH, Awad SM, Abdelwahed NAM. Some Novel Thiopyrimidine Nucleoside Analogs: Synthesis and In Vitro Antimicrobial Evaluation. SYNTHETIC COMMUN 2011. [DOI: 10.1080/00397911003632881] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Aymn E. Rashad
- a Photochemistry Department , National Research Center , Cairo , Egypt
| | | | - Hayam H. Sayed
- b Organic Chemistry Department , Faculty of Pharmacy, Helwan University , Cairo , Egypt
| | - Samir M. Awad
- b Organic Chemistry Department , Faculty of Pharmacy, Helwan University , Cairo , Egypt
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El-Sayed WA, Rashad AE, Awad SM, Ali MM. Synthesis and in vitro antitumor activity of new substituted thiopyrimidine acyclic nucleosides and their thioglycoside analogs. Nucleosides Nucleotides Nucleic Acids 2010; 28:261-74. [PMID: 20183580 DOI: 10.1080/15257770902946165] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Some new thiopyrimidine acyclic nucleosides and thioglycoside derivatives 3a-c, 4a-c, 6a,b, and 7a,b were synthesized. The cytotoxicity and antitumor evaluation of all prepared compounds have been tested in vitro against Ehrlich's ascites carcinoma cell line and their activity against glutathione peroxidase and catalase were reported. The role of the prepared compounds as free radical regulators and the therapeutic antitumor effect of a balanced generation of free radicals are discussed. Compounds 2, 3b, 3c, 4a, and 4c inhibited significantly in a dose dependent manner the growth of Ehrlich ascites carcinoma cells while the other compounds did not show any antitumor activity even at higher concentrations.
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Affiliation(s)
- Wael A El-Sayed
- Photochemistry Department, National Research Center, El Dokki, Cairo, Egypt.
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Mohamed MS, Awad SM, Sayed AI. Synthesis of certain pyrimidine derivatives as antimicrobial agents and anti-inflammatory agents. Molecules 2010; 15:1882-90. [PMID: 20336018 PMCID: PMC6257238 DOI: 10.3390/molecules15031882] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2010] [Revised: 03/11/2010] [Accepted: 03/12/2010] [Indexed: 11/16/2022] Open
Abstract
A variety of novel bicyclic and tricyclic pyrimidine derivatives was obtained via reaction of 6-amino-2-thioxo-1H-pyrimidine-4-one (1) with a different reagents. The antimicrobial and anti-inflammatory activities of some of the synthesized compounds were tested.
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Affiliation(s)
| | | | - Amira Ibrahim Sayed
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Helwan University, Helwan, Egypt
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13
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Abstract
2-Thiouracil-5-sulphonic acid N-(4-acetylphenyl) Amide (1) was reacted with a series of aromatic aldehydes giving chalcones 2 (Claisen-Schemidt reaction), some of these chalcones were reacted with urea and thiourea giving pyrimidine-2-one and pyrimidine-2 thione derivatives respectively of the type 3a,b and 4a,b. In addition many chalcones were reacted with hydroxylamine hydrochloride giving isoxazoline derivatives 5a,b. They could also reacted with phenylhydrazine to give pyrazoline derivatives 6a,b, chalcones also were reacted withethylcyano acetate and/or malononitryl in pyridine giving pyran derivatives 7a,c and 8a,c. In another pathway chalcones were epoxidised by H2O2 giving epoxides 9a,c which in turn were reacted with phenylhydrazine giving 4-hydroxypyrazoline derivatives 10a,c. In another reaction chalcones were reacted with ethylcyanoacetate in presence of amm.acetate giving pyridone derivatives 11a,d which could be prepared also in exellent yield from compound 1 by its reaction with certain aromatic aldehydes and ethylcyanoacetate in presence of ammonium acetate. Finally, compound 1 was reacted with semicarbazide giving semicarbazone intermediate 12 which in turn was reacted with thionyl chloride giving thiadiazole derivative 13. The biological effects of some of the new synthesized compounds were also investigated.
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Affiliation(s)
- O A Fathalla
- Department of Medicinal Chemistry, National Research Centre, Dokki, Cairo, Egypt.
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Abstract
2-Thiouracil-5-sulfonylchloride 1 reacted with a series of aromatic and heterocyclic amines to give 2a-j. The same compound 1 was reacted with a series of sulphonamides giving different sulphonamides of type 3a-e. On the other hand compound 1 was allowed to react with p-aminoacetophenone givining compound 4 which in turn was allowed to react with derivatives of alkyl thiosemicarbazides to give thiosemicarbazones of type 5a-e, also compound 4 was monobrominated to give compound 6 which in turn was reacted thiosemicarbazones of some aldehydes to give the corresponding thiazole derivatives 7a-f. In the same time compound 4 was reacted with a series of aromatic and heterocyclic aldehydes givining chalcones 8a-g (Claisen-Schemidt reaction). Also compound 4 was allowed to react with a series of aromatic and heterocyclic aldehydes, ethyl cyano acetate and/or malononitrile, and ammonium acetate giving pyridine derivatives 9a-d and 10a-e respectively. The biological effects of some of the new synthesized compounds was also investigated.
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Affiliation(s)
- A Fathalla
- Department of Medicinal Chemistry, National Research Centre, Dokki, Cairo, Egypt.
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Bapat KC, Awad SM, Cooperman JS, Goldberg SL, Lowry JW, Lessing J, Venkataseshan VS. Adrenal pseudocyst: report of two cases. N J Med 1995; 92:33-36. [PMID: 7854572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Adrenal cysts are uncommon lesions. The authors discuss two cases of adrenal pseudocyst, and its classification and possible pathogenesis and complications. The role of radiologic findings in preoperative evaluation of renal/suprarenal masses also is detailed.
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Affiliation(s)
- K C Bapat
- Barnert Hospital, Paterson, NJ 07514
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Affiliation(s)
- J M Radhi
- Department of Pathology, Moncton Hospital, New Brunswick, Canada
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