Selenium-Containing Heterocycles: Synthetic Investigation of 3-Amino-2-Ethylselenopyridine Carboxylate Using Sodium Borohydride
摘要:
3-amino-4,6-dimethyl-2-ethylseleno[2,3-b]pyridine carboxylate (5) was prepared by a reaction of dipyridyl diselenide derivative (3) with sodium borohydride as a reducing agent followed by alpha-haloester. The reaction of 5 with hydrazine hydrate afforded the corresponding carbohydrazide 8. The benzylidene derivative 9 provided novel heterocycles of pyrimidoseleno pyridine and thiazinoseleno pyridine derivatives (10-12), upon treatment with triethylorthoformate, acetic anhydride, and carbon disulfide, respectively.
Synthesis of selenium-containing amino acid analogues and their biological study
作者:Sh. H. Abdel-Hafez、H. A. Saad、M. R. E. Aly
DOI:10.1134/s1068162011030034
日期:2011.5
Synthesis of selenium-containing amino acidanalogues is described. These compounds were prepared in a concise and short synthetic route in good yields by nucleophilic substitution reaction of pyridineselenol and quinolineselenol derivatives with N-phthaloylglycyl chloride followed by hydrazinolysis. The newly synthesized compounds were screened against different strains of bacteria and fungi.
Design, synthesis and cytotoxic activity of vitamin E bearing selenium compounds against human breast cancer cell line (MCF-7)
作者:Shams H. Abdel-Hafez、Ahmed B. Abdelwahab、Gilbert Kirsch
DOI:10.1080/10426507.2017.1333505
日期:2017.10.3
vitamin E/selenated pyridine, vitamin E/selenated pyridazine, vitamin E/selenated coumarine and vitamin E/selenated nicotine moieties were synthesized and their cytotoxic activity is investigated using the humanbreastcancercell line. The newly synthesized compounds were characterized using spectroscopic tools (IR, 1H NMR, 13C NMR, and mass spectroscopy) as well as microanalysis. Our study reveals
Selenium-Containing Heterocycles: Synthetic Investigation of 3-Amino-2-Ethylselenopyridine Carboxylate Using Sodium Borohydride
作者:Sh. H. Abdel-Hafez、Sh. A. Abdel-Mohsen、Y. A. El-Ossaily
DOI:10.1080/10426500600616795
日期:2006.10.1
3-amino-4,6-dimethyl-2-ethylseleno[2,3-b]pyridine carboxylate (5) was prepared by a reaction of dipyridyl diselenide derivative (3) with sodium borohydride as a reducing agent followed by alpha-haloester. The reaction of 5 with hydrazine hydrate afforded the corresponding carbohydrazide 8. The benzylidene derivative 9 provided novel heterocycles of pyrimidoseleno pyridine and thiazinoseleno pyridine derivatives (10-12), upon treatment with triethylorthoformate, acetic anhydride, and carbon disulfide, respectively.