Browsing by Author Sayed Karam Ramadan Emam

Showing results 1 to 71 of 71
Issue DateTitleAuthor(s)
20192-Cyano-N '-[(1,3-diphenyl-1H-pyrazol-4-yl)methylidene]acetohydrazide in the Synthesis of Nitrogen HeterocyclesAzab, ME ; Sayed K. Ramadan ; Eman A. E. El-Helw 
20223-Aryl/hetaryl-2-cyanoacryloyl chlorides: Synthesis and Reactions with Binucleophiles Targeting HeterocyclesEl-Ziaty, Ahmed ; S.K. Ramadan ; Eman A.E. El-Helw 
2017Access to convenient synthesis of oxazinone and pyrimidinone heterocycles derived from 2(3H)-furanoneRamadan, S. K. ; Abou-Elmagd, W.S.I. ; El-Ziaty, A.K. ; Hashem, A.I. 
Jan-2025Antiproliferative Activity and Molecular Docking of Some Pyrazole-Based Quinazolinone, Benzimidazole, and Tetrazinethione DerivativesRamadan, Sayed ; Abd-Rabboh, Hisham S M; Abou-Elmagd, Wael S. I. 
28-May-2025Antiviral activity of newly synthesized pyrazole derivatives against Newcastle disease virusEl-Sewedy, Ahmed; Morsy, Alaa R I; El-Bordany, Eman A; Mahmoud, Naglaa F H; Mohamed, Safwa Z; Ramadan, Sayed 
2024Antiviral activity of pyrazole derivatives bearing a hydroxyquinoline scaffold against SARS-CoV-2, HCoV-229E, MERS-CoV, and IBV propagationMorsy, Alaa R. I.; Mahmoud, Sara H.; Abou Shama, Noura M.; Arafa, Walaa; Yousef, Gehad A.; Khalil, Ahmed. A.; Ramadan, SK 
2016Behavior of some 2(3H)-furanones bearing a chromone moiety as alkylating agentsEl-Ziaty, A.K. ; Abou-Elmagd, W.S.I. ; Ramadan, S.K. ; Hashem, Ahmed ; Ramadan, Sayed 
2025Corrosion inhibition mechanism of pyrazolopyrazole and triazolopyrimidine surfactants based on pyridine scaffold on N80 carbon steel in acidic and bacterial media: Synthesis, characterization, docking, DFT, and MD simulationsAli H. Abdelrahman; Sayed K. Ramadan ; Mohammad E. Azab ; Mohamed A. Hegazy; Ahmed Labena; Toka Khairy; Ahmed A. Zaher; N.S. Abdelshafi
1-Jul-2020Cytotoxic activity and density functional theory studies of some 1,3-diphenylpyrazolyltetrahydropyrimidine derivativesSayed K. Ramadan ; Halim, KNM; El-Hashash, MA; Rizk, Sameh Ahmed 
2019Cytotoxic and antimicrobial activities of some novel heterocycles employing 6-(1,3-diphenyl-1H-pyrazol-4-yl)-4-oxo-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrileSayed K. Ramadan ; El-Helw, Eman A. E.; Sallam, Hanan A.
2026Design and synthesis of novel sulfa-azo dyes: a sustainable approach to textile dyeing combined with microwave energySherif, Salma; Aboelnaga, Asmaa ; Elshemy, Nagla S.; Elabbady, Samia; Sayed Karam Ramadan Emam 
2018Design and Synthesis of some N-Heterocycles Derived from Furyl-2 (3H)-FuranoneRamadan, S. K. ; El-Helw, E. A. E. 
10-Aug-2020Design, synthesis and in silico studies of new quinazolinone derivatives as antitumor PARP-1 inhibitorsRamadan, Sayed ; Elrazaz, Eman ; Khaled A M Abouzid ; El- naggar, Abeer 
2025Design, synthesis, and in silico studies of pyrazolyl-thiazole and thiazolidinone hybrids as potential antiproliferative agentsRamadan, Sayed K; Ali, Amira T; Gomha, Sobhi M; Ramadan, S.K. ; Eman A. E. El-Helw 
1-Jan-2024Design, Synthesis, Antiproliferative Screening, and In Silico Studies of Some Pyridinyl-Pyrimidine CandidatesAbdelrahman, Ali H.; Hegazy, Mohamed A.; Labena, Ahmed; SK Ramadan ; Azab, Mohammad 
2019Efficient Microwave-Assisted Synthesis of Some N-Heterocycles Integrated with a Pyrazole MoietySayed K. Ramadan ; Eman A. E. El-Helw 
2020Efficient synthesis of some pyrimidine and thiazolidine derivatives bearing quinoline scaffold under microwave irradiationRamadan, Sayed ; El-Naggar, Abeer M
24-Apr-2026Exploring insecticidal activity and SAR study of newly synthesized Benzo[h]quinoline-based heterocycles against Aphis craccivora Koch. and Culex pipiens L. LarvaeAbdel-Haleem, Doaa R; Khalil, A. K. ; Sayed Karam Ramadan Emam ; Eman A. E. El-Helw 
2019Facile and expedient synthesis and anti-proliferative activity of diversely pyrrolones bearing 1,3-diphenylpyrazole moietySayed K. Ramadan ; Shaban, S. S.; Hashem, A.I.
2025In Silico ADME, DFT, and Antiproliferative Activity of Pyrazole-based Pyrimidinethione, Triazolethione, and Thiadiazolopyrimidine DerivativesRamadan, Sayed ; Gomha, S. M.; E.A.E. El-Helw 
2026Integrated synthesis, antiproliferative potential, and in silico analysis of novel pyrazole-based hydrazones derived from 3-(2-(4-chlorophenyl)hydrazineylidene)-5-phenylfuran-2(3H)-oneKazem, Mariam S. H.; Abd-Rabboh, Hisham S. M.; Sayed Karam Ramadan Emam ; Abou-Elmagd, Wael S. I. ; Hashem, Ahmed 
2025Mona A. El-Etre2, A. Elaraby4 \& Magdy AM Ibrahim1✉Khedr, Basma MA; Abdelkader, Sherine A; Abdelhamed, Samar; Sayed Karam Ramadan Emam 
31-Dec-2026Multi-targeted pyrazole scaffolds: synthesis, mechanistic insights, and therapeutic potential in anticancer, antioxidant, and anti-inflammatory applicationsAljameel, Suhailah S; Eissa, Mohamed E; Alatawi, Zinab; Alahmadi, Hanadi A; Azab, Mohammad E ; Yousef, Tarek A; Aljohi, Hasan A; Al-Farraj, Eida S; Bahattab, Eman Abdullah; Ghareeb, Ahmed; El-Helw, Eman A. E. ; Sayed Karam Ramadan Emam ; Eman A. E. El-Helw 
4-Dec-2025Multifaceted insights of experimental, surface, and computational investigations for a synthesized pyrazolyl derivative inhibitor for carbon steel corrosion in an acidic environmentKhedr, Basma M A; Abdelkader, Sherine A; Abdelhamed, Samar; El-Etre, Mona A; Elaraby, A; Ibrahim, Magdy A M ; Sayed Karam Ramadan Emam 
1-Jan-2021New potential fungicides pyrazole-based heterocycles derived from 2-cyano-3-(1,3-diphenyl-1H-pyrazol-4-yl) acryloyl isothiocyanateRamadan, S.K. ; Ibrahim, NA; El-Kaed, SA; Eman A. E. El-Helw 
2015Novel synthesis of some imidazolyl-, benzoxazinyl-, and quinazolinyl- 2,4-dioxothiazolidine derivativesYoussef, A.M. ; El-Ziaty, A.K. ; Abou-Elmagd, W.S.I. ; Ramadan, S.K. ; Ramadan, Sayed ; Wael Abou-Elmagd 
19-Oct-2023One-pot synthesis, computational chemical study, molecular docking, biological study, and in silico prediction ADME/pharmacokinetics properties of 5-substituted 1H-tetrazole derivativesEl-Sewedy, Ahmed; El-Bordany, Eman A; Mahmoud, Naglaa F H; Ali, Kholoud A; Sayed K. Ramadan 
1-Dec-2023Photosensitization of TiO2 microspheres by novel Quinazoline-derivative as visible-light-harvesting antenna for enhanced Rhodamine B photodegradationHamza, M.A.; Ezz-Elregal, EE.M.; Shaimaa A Abd El-Rahman; Sayed K. Ramadan ; Zeinab M Abou‑Gamra; Rizk, Sameh Ahmed ; abougamra, zeinab 
2019Reactions of 2(3H)-furanonesSayed K. Ramadan ; Abou-Elmagd, W.S.I.; Hashem, A.I.; Wael Abou-Elmagd 
2021Reactivity of 5-phenyl-3-[(2-chloroquinolin-3-yl)methylene] furan-2(3H)-one towards hydrazine and benzylamine: A comparative studyGad, NM; Abou-Elmagd, WSI; Haneen, DSA; Ramadan, Sayed ; Wael Abou-Elmagd ; Haneen, David 
2017Ring Transformation of a 2(3H)-furanone Derivative into Oxazinone and Pyrimidinone HeterocyclesHashem, A.I. ; Abou-Elmagd, W.S.I. ; El-Ziaty, Ahmed ; Ramadan, S.K. ; Ramadan, Sayed ; Wael Abou-Elmagd 
Nov-2017Ring Transformation of a 2(3H)-furanone Derivative into Oxazinone and Pyrimidinone HeterocyclesAbou-Elmagd, W.S.I.; Sayed K. Ramadan ; El-Ziaty, Ahmed ; Hashem, Ahmed 
2022Rodenticidal Activity of Some Quinoline-Based Heterocycles Derived from Hydrazide–Hydrazone DerivativeKaddah, Mohamed M.; Fahmi, Abdelgawad A.; Kamel, Mustafa M.; Sayed K. Ramadan ; Rizk, Sameh Ahmed 
2024Some pyrimidohexahydroquinoline candidates: synthesis, DFT, cytotoxic activity evaluation, molecular docking, and in silico studiesSayed Karam Ramadan Emam ; Abd-Rabboh, Hisham S. M.; Abdel Hafez, Amal A.; Wael Abou-Elmagd 
1-Jan-2024Some Thiazolopyrimidine Derivatives: Synthesis, DFT, Cytotoxicity, and Pharmacokinetics Modeling StudyRamadan, Sayed ; Alzahrani, Abdullah Y. A.; Eman A. E. El-Helw 
29-Sep-2025Straightforward synthesis and in silico evaluation of pyrazolylthiazolidinone derivatives as prospective antiproliferative agentsRamadan, Sayed ; Gomha, Sobhi M; El-Helw, Eman A. E. 
1-Feb-2021Straightforward synthesis, antiproliferative screening, and density functional theory study of some pyrazolylpyrimidine derivativesHalim, KNM; El-Hashash, MA; Ramadan, Sayed ; Rizk, Sameh Ahmed 
2026Synthesis and In Silico Studies of New Tetrahydrobenzo[ b ]Thiophenes and Heteroannulated Candidates as Antiproliferative AgentsElgubbi, Amna S.; Gomha, Sobhi M.; Zaki, Magdi E. A.; Sayed Karam Ramadan Emam ; Eman A. E. El-Helw 
Aug-2018Synthesis and anti H5N1 activities of some novel fused heterocycles bearing pyrazolyl moietyRamadan, S. K. ; Abou-Elmagd, Wael S. I. 
1-Jun-2018Synthesis and antimicrobial activity evaluation of some novel heterocycles derived from chromonyl-2(3H)-furanoneRamadan, S. K. ; El-Helw E. 
6-Feb-2024Synthesis and antimicrobial activity of thiophene-based heterocycles derived from thiophene-2-carbohydrazideEl-Helw, Eman AE; Alzahrani, Abdullah Ya; Sayed Karam Ramadan Emam 
2023Synthesis and Antioxidant Activity of Some Benzoquinoline-Based Heterocycles Derived from 2-((3-Chlorobenzo[f]quinolin-2-yl)methylene)hydrazine-1-carbothioamideAsran, Mahmoud; Azab, Mohammad E.; S.K. Ramadan ; Helal, Maher H.; Eman A. E. El-Helw 
1-Jan-2021Synthesis and antioxidant evaluation of some heterocyclic candidates from 3-(1,3-diphenyl-1H-pyrazol-4-yl)-2-(4-oxo-4H-benzo[d][1,3]oxazin-2-yl)propenonitrileRamadan, Sayed ; Eman A. E. El-Helw ; El-Ziaty, Ahmed 
2016Synthesis and antitumor activity evaluation of some N-heterocycles derived from pyrazolyl-substituted 2(3H)-furanoneAbou-Elmagd, W.S.I. ; El-Ziaty, Ahmed ; Elzahar, M.I. ; Ramadan, S.K. ; Hashem, A.I. ; Ramadan, Sayed 
2020Synthesis and antiviral activity of some pyrrolonyl substituted heterocycles as additives to enhance inactivated Newcastle disease vaccineMorsy, ARI; Ramadan, Sayed ; Elsafty, MM
2021Synthesis and biological activity on IBD virus of diverse heterocyclic systems derived from 2-cyano-N'-((2-oxo-1,2-dihydroquinolin-3-yl)methylene)acetohydrazideKaddah, MM; Morsy, ARI; Fahmi, AA; Kamel, MM; Elsafty, MM; Sayed Karam Ramadan Emam ; Rizk, Sameh Ahmed 
1-Jan-2024Synthesis and Biological Applications of Coumarinyl-ChalconesRamadan, Sayed ; Rizk, Sameh Ahmed ; Eman A. E. El-Helw 
2017Synthesis and biological screening of some chromonyl-substituted heterocycles derived from 2(3H)-furanone derivativeEl-Ziaty, Ahmed ; Abou-Elmagd, W.S.I. ; Ramadan, Sayed ; Hashem, A.I. 
2022Synthesis and Characterization of Some Chitosan-Quinoline Nanocomposites as Potential Insecticidal AgentsRamadan, SK ; Abd-Rabboh, HSM; Gad, NM; Abou-Elmagd, WSI; Haneen, DSA
2025Synthesis and Exploring Antiproliferative Activity of Some Pyrazole-Bearing Heterocycles: DFT, Molecular Docking, and ADME StudyRamadan, Sayed ; Gomha, S. M.; El-Helw, E.A.E. 
1-Jan-2025Synthesis and In Silico Evaluation of Thiazole, Thiazolidinone, and Pyrimidinethione Candidates Bearing A Benzo[h]Quinoline Scaffold as Potential Antiproliferative AgentsGomha, Sobhi M.; Ali, Amira T.; Sayed Karam Ramadan Emam ; Eman A. E. El-Helw 
5-Jul-2024Synthesis and in silico studies of certain benzo[f]quinoline-based heterocycles as antitumor agentsAsran, Mahmoud; Helal, Maher H; Alzahrani, Abdullah Y A; Ramadan, Sayed ; Azab, Mohammad ; Eman A. E. El-Helw 
2019Synthesis and Reactions of 4-Oxothiazolidines: A ReviewSayed K. Ramadan ; El-Helw, Eman A. E. 
24-Mar-2025Synthesis of Benzo[h]quinoline derivatives and evaluation of their insecticidal activity against Culex pipiens L. larvaeHosni, Eslam M; E.A.E. El-Helw ; Ramadan, Sayed ; Hashem, Ahmed ; Wael Abou-Elmagd 
1-Jan-2024Synthesis, antiproliferative activity, and in silico studies of quinoline-based pyrimidinedione and thiazolidinedione derivativesAlzahrani, Abdullah Y.A.; Ramadan, S.K. ; Eman A. E. El-Helw 
2021Synthesis, antiproliferative activity, and molecular docking of some N-heterocycles bearing a pyrazole scaffold against liver and breast tumorsRamadan, Sayed ; El-Ziaty, AK; Ali, RS
1-Jan-2021Synthesis, characterization, computational chemical studies and antiproliferative activity of some heterocyclic systems derived from 3-(3-(1,3-diphenyl-1H-pyrazol-4-yl)acryloyl)-2H-chromen-2-oneKaddah, MM; Fahmi, AA; Kamel, MM; Sayed K. Ramadan ; Rizk, Sameh Ahmed 
2025Synthesis, computational analysis, and exploring antiproliferative activity of triazolo- and thiazolo-pyrimidine derivatives as potential EGFR inhibitorsAbdelrahman, Ali H.; Hegazy, Mohamed A.; Labena, Ahmed; Alzahrani, Abdullah Y.A.; Ramadan, Sayed ; Azab, Mohammad 
14-Feb-2024Synthesis, computational chemical study, antiproliferative activity screening, and molecular docking of some thiophene-based oxadiazole, triazole, and thiazolidinone derivativesElgubbi, Amna S; Alzahrani, Abdullah Y A; Ramadan, Sayed ; Eman A.E. El-Helw 
2023Synthesis, Cytotoxic, and Antioxidant Activity of Some Benzoquinoline-Based HeterocyclesAsran, Mahmoud; Azab, Mohammad E.; Helal, Maher H.; Sayed K. Ramadan ; Eman A. E. El-Helw 
2021Synthesis, density functional theory, and cytotoxic activity of some heterocyclic systems derived from 3-(3-(1,3-diphenyl-1H-pyrazol-4-yl)acryloyl)-2H-chromen-2-oneRamadan, Sayed ; Rizk, Sameh Ahmed 
17-Apr-2020Synthesis, DFT study, molecular docking and insecticidal evaluation of some pyrazole-based tetrahydropyrimidine derivativesHalim, KNM; Ramadan, Sayed ; El-Hashash, MA; Rizk SA 
27-Dec-2024Synthesis, in vivo evaluation, and in silico molecular docking of benzo[h]quinoline derivatives as potential Culex pipiens L. larvicidesRamadan, Sayed ; Hosni, Eslam M; Kamal, Mahmoud ; El-Helw, Eman A. E. ; Hashem, Ahmed ; Wael Abou-Elmagd 
2024Synthesis, insecticidal Activity, and molecular docking analysis of some benzo[h]quinoline derivatives against Culex pipiens L. LarvaeHosni, Eslam M.; Mahmoud Kamal ; Sayed Karam Ramadan Emam ; Eman A.E. El-Helw ; Hashem, Ahmed 
2022Synthesis, SAR studies, and insecticidal activities of certain N-heterocycles derived from 3-((2-chloroquinolin-3-yl)methylene)-5-phenylfuran-2(3H)-one against Culex pipiens L. larvaeSayed Karam Ramadan Emam ; Doaa Ramadan ; Abd-Rabboh, Hisham S. M.; Gad, Nourhan M.; Haneen, David S. A.; Wael Abou-Elmagd 
Jun-2018Synthesis, Spectral Characterization, Cytotoxic, and Antimicrobial Activities of Some Novel Heterocycles Utilizing 1,3-Diphenylpyrazole-4- carboxaldehyde ThiosemicarbazoneRamadan, S. K. ; Sallam, H.A. 
1-Jul-2024The enhanced visible-light-driven photocatalytic performance of nanocrystalline TiO2 decorated by quinazolinone-photosensitizer toward photocatalytic treatment of simulated wastewaterAdel Hamza, Mahmoud; Abd El-Rahman, Shaimaa A.; Ramadan, Sayed ; Ezz-Elregal, Ezz-Elregal M.; Abou-Gamra, Zeinab M.; Rizk, Sameh Ahmed ; abougamra, zeinab 
2026Transformation of 3-(4-methoxybenzylidine)-5-(p-tolyl)-2(3H)-furanone into new nitrogen heterocyclic candidates as insecticidal agents with in silico studiesGad, Nourhan M.; Haneen, David S. A.; Hosni, Eslam M.; Hekal, Mohamed H. ; Abdalha, Abdelaal A.; Sayed Karam Ramadan Emam ; Wael Abou-Elmagd 
2022Ultrasonic Promoted Regioselective Reactions of the Novel Spiro 3,1-Benzoxazon-Isobenzofuranone Dye Toward Some Organic Base ReagentsHassaballah, AI; S.K. Ramadan ; Abdelwahab, SS; Rizk, Sameh Ahmed ; Eman A. E. El-Helw 
2017Utilization of some furanone derivatives for the construction of other heterocyclic systemsEl-Ziaty, Ahmed K; Abou-Elmagd, Wael SI; Hashem, Ahmed I.; Sayed Karam Ramadan Emam 
6-Jun-2024β-Enaminonitrile in the synthesis of tetrahydrobenzo[b]thiophene candidates with DFT simulation, in vitro antiproliferative assessment, molecular docking, and modeling pharmacokineticsElgubbi, Amna S.; Abousiksaka, Motaleb S.; Alzahrani, Abdullah Y. A.; Sayed Karam Ramadan Emam ; Eman A. E. El-Helw