Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Abd El‐Fattah Z. Haikal"'
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 188:649-662
The reaction of 5-(2-methylthio)phenyl-1,2,4-triazole-3-thiol with glucosyl, galactosyl, lactosyl bromide, and peracetylated ribose under the conventional and microwave irradiation methods afforded the corresponding S-glycosides. Deacetylation of S-g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e52c8d612090268d3e5c326c027a20b7
https://doi.org/10.1080/10426507.2012.668990
https://doi.org/10.1080/10426507.2012.668990
Publikováno v:
Nucleosides, Nucleotides and Nucleic Acids. 30:340-352
Reaction of pyridin-2(1H)-one 1 with 4-bromobutylacetate (2), (2-acetoxyethoxy)methyl bromide (3) gave the corresponding nicotinonitrile O-acyclonucleosides, 4 and 5, respectively. Deacetylation of 4 and 5 gave the corresponding deprotected acyclonuc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3692856fd8e5c83c5aa21294aa26f9b
https://doi.org/10.1080/15257770.2011.582850
https://doi.org/10.1080/15257770.2011.582850
Autor:
Ibrahim M. Abdou, Hassan A. El-Sayed, Abd El‐Fattah Z. Haikal, Ahmed H. Moustafa, E. S. H. El‐Ashry
Publikováno v:
Nucleosides, Nucleotides and Nucleic Acids. 27:1061-1071
Reaction of ethyl 4-thioxo-3,4-dihydropyrimidine-5-carboxylate derivatives 1a,b and ethyl 4-oxo-3,4-dihydropyrimidine-5-carboxylate 1c with 2,3,4,6-tetra-O-acetyl-alpha-D-glucopyranosyl bromide in KOH or TEA afforded ethyl 2-aryl-4-(2',3',4',6'-tetra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f3c230ba25d3304c26fa55cb169ce20
https://doi.org/10.1080/15257770802271805
https://doi.org/10.1080/15257770802271805
Autor:
Said A. Said, Abd-El Fattah Z. Haikal, Ahmed H. Moustafa, Rajab Abu-El-Halawa, Rimaa T. Abd El kader
Publikováno v:
Nucleosides, nucleotidesnucleic acids. 33(3)
Hydroquinoline acyclonucleosides 2, 4, 6a,b, 8a,b, 9a,b, and their corresponding N-alkyl derivatives (10-12) were obtained by the reaction of 1a,b with acetoxybutylbromide, (2-acetoxyethoxy)methyl bromide, 3-chloropropanol, 1,3-dichloro-2-propanol, e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e272271c3b6fef8cf1d556552e1f4341
https://pubmed.ncbi.nlm.nih.gov/24689844
https://pubmed.ncbi.nlm.nih.gov/24689844
Publikováno v:
ChemInform. 44
Compounds (Va) and (VIb) possess significant antibacterial activity while all of the tested compounds show antifungal activity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a1a8641baf866819ad3a62899606f97
https://doi.org/10.1002/chin.201341205
https://doi.org/10.1002/chin.201341205
Publikováno v:
ChemInform. 43
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3cd8cd1134547975e5f197db250d61a
https://doi.org/10.1002/chin.201203191
https://doi.org/10.1002/chin.201203191
Autor:
Ahmed H. Moustafa, Abd El‐Fattah Z. Haikal, El Sayed H. El Ashry, Hassan A. El-Sayed, Rajab Abu-El-Halawa
Publikováno v:
ChemInform. 42
Glycosylation of pyridinone (IV) under conventional or microwave-assisted conditions affords the corresponding O-glycosides instead of the N-glycosides.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e3b83d0ab1ae889c98c7723a1526069
https://doi.org/10.1002/chin.201141187
https://doi.org/10.1002/chin.201141187
Autor:
Abd El‐Fattah Z. Haikal, Hassan A. El-Sayed, Ahmed H. Moustafa, El Sayed H. El Ashry, Rajab Abu-El-Halawa
Publikováno v:
European journal of medicinal chemistry. 46(7)
4-(4-Chlorophenyl)-3-cyano-6-(thien-2-yl)-1 H -pyridin-2-one ( 2 ) was obtained by reaction of 2-acetyl thiophene with 4-chlorobenzaldehyde and ethyl cyanoacetate in presence of ammonium acetate or by the reaction of α , β -unsaturated compound 1 w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::165890f03290f27dab5436af2f57ae2c
https://pubmed.ncbi.nlm.nih.gov/21531049
https://pubmed.ncbi.nlm.nih.gov/21531049
Publikováno v:
ChemInform. 40
Reaction of 5,6-diphenylpyridazin-3(2H)-one 1a,b with 2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyl bromide 2 in K(2)CO(3)/acetone gave 5,6-diphenyl-N(2)-(2',3',4',6'-tetra-O-acetyl-beta-D-glucopyranosyl)pyridazin-3-one 5a,b. The same nucleosides 5a,b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e59a4f5337c95c8e9587849d44c86a3d
https://doi.org/10.1002/chin.200940200
https://doi.org/10.1002/chin.200940200
Publikováno v:
Nucleosides, nucleotidesnucleic acids. 28(3)
Reaction of 5,6-diphenylpyridazin-3(2H)-one 1a,b with 2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyl bromide 2 in K(2)CO(3)/acetone gave 5,6-diphenyl-N(2)-(2',3',4',6'-tetra-O-acetyl-beta-D-glucopyranosyl)pyridazin-3-one 5a,b. The same nucleosides 5a,b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::116a5179b692f869cb86f56286294c03
https://pubmed.ncbi.nlm.nih.gov/19333857
https://pubmed.ncbi.nlm.nih.gov/19333857