Zobrazeno 1 - 10
of 81
pro vyhledávání: '"A. M. Sh. El-Sharief"'
Publikováno v:
Journal of Taibah University for Science, Vol 14, Iss 1, Pp 842-848 (2020)
Reaction of imidazolidineiminothiones with some amino acids methyl ester afforded imidazopyrazine and imidazolidine derivatives. Some of obtained products were synthesized by nano technology; where this method reduces the reaction time significantly.
Externí odkaz:
https://doaj.org/article/980bad3c1fd747748d038112b67812f9
Autor:
Sadia A. Hessein, Marwa A. M. Sh. El-Sharief, Samir Y. Abbas, Hamdy Kh. Thabet, Yousry A. Ammar
Publikováno v:
Croatica Chemica Acta, Vol 89, Iss 1, Pp 91-100 (2016)
New visnagin-9-sulfonamide derivatives 3 and 4a−c were synthesized through the reaction of visnagin-9-sulfonyl chloride 2 with amino compounds. Acetylation of compounds 4b and 4c gave the monoacetyl and diacetyl derivatives 5 and 6, respectively. D
Externí odkaz:
https://doaj.org/article/763aa40fd26a4a95b206cd2ec20fcc63
Publikováno v:
ChemistrySelect. 5:764-798
Publikováno v:
Synthetic Communications. 50:621-648
When, cyanothioformamide derivatives are reacted with certain electrophiles, they produce imidazole, oxazole, thiazole, 2,5-thiadiazole, bis-imidazole and bis-oxazole derivatives; while the...
Publikováno v:
Al-Azhar Bulletin of Science. 29:25-37
In the present study, a series of thiazole derivatives bearing 5-morpholinosulfonylindole were designed and synthesized through condensation of 5-(morpholinosulfonyl)isatin (1) with some thiazolidinone derivatives as carbon nucleophiles to afford the
Autor:
Reem A. K. Al-Harbi, Samir Y. Abbas, Marwa A.M.Sh. El-Sharief, Ahmed M. Sh. El-Sharief, Eman W. El-Gammal
Publikováno v:
Current Organic Synthesis. 16
The article has been withdrawn at the request of the authors and editor of the journal "Current Organic Synthesis." Bentham Science apologizes to the readers of the journal for any inconvenience this may cause The Bentham Editorial Policy on Article
Autor:
Ahmed M. Sh. El-Sharief, Eman W. El-Gammal, Samir Y. Abbas, Reem A. K. Al-Harbi, Marwa A.M.Sh. El-Sharief
Publikováno v:
Medicinal chemistry (Shariqah (United Arab Emirates)). 17(6)
Objective: It was interesting to synthesize some new 5-imino-4-thioxoimidazolidin-2- one derivatives with different halogenated and alkylated aromatic substituents at N-(1) and N-(3) and evaluation of their expected antibacterial and antifungal activ
Autor:
Ziad Moussa, Nermien M. Sabry, Mardia T. El Sayed, Shahenda M. El-Messery, Ahmed R. El-Sheakh, Marwa A.M.Sh. El-Sharief, Samir Y. Abbas, Ahmed M. Sh. El-Sharief, Ghada S. Hassan
Publikováno v:
Bioorganic chemistry. 87
A series of 5-imino-4-thioxo-2-imidazolidinone derivatives with different substituents at N1 and N3 was synthesized with high yield and excellent purity by the reaction of different N-arylcyanothioformamide derivatives with isocyanate derivatives. Tr
Autor:
Yehia A. Mohamed, Amany Belal, Ahmed B.M. Mehany, Ahmed M. Sh. El-Sharief, Ahmed Ragab, Yousry A. Ammar, Samir Y. Abbas
Publikováno v:
European journal of medicinal chemistry. 156
New series of 5-(morpholinosulfonyl) isatin derivatives were designed and synthesized. The new compounds were characterized on the basis of spectral and elemental analyses. They were examined for their cytotoxic effects using SRB assay on four cancer
Autor:
Ziad Moussa, Eman W. El-Gammal, Samir Y. Abbas, Marwa A.M.Sh. El-Sharief, Ahmed M. Sh. El-Sharief
Publikováno v:
Croatica Chemica Acta
Volume 91
Issue 3
Volume 91
Issue 3
1,3-Disubstituted-4-thioxoimidazolidin-2-one derivatives with various substituents at N1 and N3 were synthesized with high yields and excellent purity by the reaction of various N-arylcyanothioformamide derivatives with isocyanate derivatives. The ac