Alaa A. Hassan、* Nasr K. Mohamed、Kamal MA El-Shaieb、Hendawy N. Tawfeek、Stefan Bräse 和 Martin Nieger ca 化学系,米尼亚大学理学院,61519 El-Minia,埃及 b 有机化学研究所, 卡尔斯鲁厄理工学院, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany c Laboratory of Inorganic Chemistry, Department, Helsinki, University of Helsinki PO Box 55 (AI Virtasen aukio 1), 00014 Helsinki, Finland 电子邮件:alaahassan2001@ mu.edu.eg
Sulfonamide-Linked Ciprofloxacin, Sulfadiazine and Amantadine Derivatives as a Novel Class of Inhibitors of Jack Bean Urease; Synthesis, Kinetic Mechanism and Molecular Docking
The Reactivity of Dimethyl Acetylenedicarboxylate and Heterocyclization of Hydrazinecarbothioamides to 1,3-Thiazolidin-4-ones
作者:Alaa A. Hassan、Nasr K. Mohamed、Kamal M. A. El-Shaieb、Hendawy N. Tawfeek、Stefan Bräse、Martin Nieger
DOI:10.1002/jhet.2392
日期:2016.1
2‐Substituted hydrazinecarbothioamides and N,2‐disubstituted hydrazinecarbothioamides react, in high yields with dimethylacetylenedicarboxylate to give 4‐oxo‐Z‐(thiazolidin‐5‐ylidene)acetate derivatives. Several mechanistic options involving interaction are presented. The structures of thiazolidin‐4‐ones have been unambiguously confirmed by single crystal X‐ray crystallography.
Synthesis and structure confirmation of 2,4-disubstituted thiazole and 2,3,4-trisubstituted thiazole as thiazolium bromide salts
作者:Alaa A. Hassan、Nasr K. Mohamed、Ashraf A. Aly、Hendawy N. Tawfeek、Stefan Bräse、Martin Nieger
DOI:10.1007/s00706-020-02640-3
日期:2020.7
AbstractThe synthesis of 4-substituted 2-(2-arylhydrazinyl)thiazol-3-ium bromides and 4-aryl-2-(substituted amino)-3-(phenylamino)thiazol-3-ium bromide derivatives in high yields from the interaction of mono- and di-substituted thiosemicarbazides with phenacyl bromide derivatives is reported. The synthesized products have been elucidated using various spectroscopic tools such as IR, NMR, and mass spectrometry
1,3-Thiazin-Synthesen mit β-Diketonen via Enol-phosphate
作者:Werner Schroth、Roland Spitzner、Jörg Freitag
DOI:10.1055/s-1983-30530
日期:——
Synthesis of some p-toluenesulfonyl-hydrazinothiazoles and hydrazino-bis-thiazoles and their anticancer activity
作者:Valentin Zaharia、Adriana Ignat、Nicolae Palibroda、Bathélémy Ngameni、Victor Kuete、Charles N. Fokunang、Marlyse L. Moungang、Bonaventure T. Ngadjui
DOI:10.1016/j.ejmech.2010.08.017
日期:2010.11
A series of novel p-toluenesulfonyl-hydrazinothiazoles and hydrazino-bis-thiazoles derivatives (2a-f,3a-f, and 5-8) were synthesized by initial condensation of p-toluenesulfonylthiosemicarbazide 1 with a series of alpha-halogenocarbonyls in acetone or dimethylformamide (DMF)/acetone, mixture. All our synthesized compounds were submitted for further acylation reaction in the presence of acetic anhydride. The structures of newly synthesized derivatives 2a-f, 3a-f and 5-8 were confirmed by IR, H-1-NMR, EIMS spectral data and elemental analysis. Compounds 2a, 2c, 2d, 2e and 3a showed significant anticancer activities (IC50 < 10 mu M) on both prostate DU-145 and hepatocarcinoma Hep-G2 cancer cell lines. (C) 2010 Elsevier Masson SAS. All rights reserved.