Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Daisy H. Fleita"'
Publikováno v:
Molecules, Vol 16, Iss 1, Pp 16-27 (2010)
The reaction of cyanoacetyl hydrazine (1) with 3-acetylpyridine (2) gave the hydrazide-hydrazone derivative 3. The latter compound undergoes a series of heterocyclization reactions to give new heterocyclic compounds. The antitumor evaluation of the n
Externí odkaz:
https://doaj.org/article/4fcc2f87df414432aacf646cc01a5a1d
Publikováno v:
Acta Crystallographica Section E, Vol 70, Iss 9, Pp o886-o886 (2014)
In the title compound, C9H13N3O, the cyclohexylidene ring adopts a chair conformation and the bond-angle sum at the C atom linked to the N atom is 359.6°. The cyanoacetohydrazide grouping is close to planar (r.m.s. deviation for the non-H atoms = 0.
Externí odkaz:
https://doaj.org/article/20337e913b1441ee891c4fbfda78102a
Publikováno v:
Acta Crystallographica Section E, Vol 69, Iss 3, Pp o350-o350 (2013)
In the title compound, C12H7N3OS, the essentially planar thiazole ring (r.m.s. deviation = 0.022 Å) forms dihedral angles of 84.88 (9) and 1.8 (3)° with the phenyl ring and the –C(CN)2 group (r.m.s. deviation = 0.003 Å), respectively. The molecu
Externí odkaz:
https://doaj.org/article/ef293f2eca3446f18b146c159154ffb1
There is a current increasing demand for antioxidants in food, pharmaceutical, and medical applications. Bioactive compounds, particularly sulfated polysaccharides (SPs) extracted from marine algal species were found to exhibit remarkable antioxidant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::498a0e3649e4f3957477183862f988cc
https://doi.org/10.1016/b978-0-12-811521-3.00009-0
https://doi.org/10.1016/b978-0-12-811521-3.00009-0
Publikováno v:
LWT - Food Science and Technology. 63:1236-1244
Sulfated polysaccharides (SPs) were extracted from red algae, Pterocladia capillacea and the produced fractions were hydrolyzed using different enzymes. 1,1-Diphenyl-2-Picryl-Hydrazyl (DPPH) and peroxide scavenging activities as well as phenolic cont
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aacd080eb0c95b98be878306cd182c73
https://doi.org/10.1016/j.lwt.2015.04.024
https://doi.org/10.1016/j.lwt.2015.04.024
Autor:
Khaled Mahmoud, William T. A. Harrison, Daisy H. Fleita, Rafat M. Mohareb, Ola K. Sakka, Yara E. El-Shorafa
Publikováno v:
Medicinal Chemistry Research. 24:3021-3036
A series of thiazole, pyridine and benzylidene derivatives derived from thiophene scaffold have been synthesized. The antitumor evaluation of the newly synthesized products against four cancer cell lines, namely breast carcinoma (MCF-7), liver carcin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b346bd9a991b37377a019f953439652f
https://doi.org/10.1007/s00044-015-1353-5
https://doi.org/10.1007/s00044-015-1353-5
Publikováno v:
Medicinal Chemistry Research. 22:2207-2221
Novel thiazole, pyrimidine and benzylidene derivatives derived from quinazoline scaffold have been synthesized. The antitumor evaluation of the newly synthesized products against three cancer cell lines namely breast adenocarcinoma (MCF-7), non-small
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5da7b1dd78bdd87dcc581a9d12cd786f
https://doi.org/10.1007/s00044-012-0213-9
https://doi.org/10.1007/s00044-012-0213-9
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 464:012007
Recently, there has been a growing interest in sulfated polysaccharides extracted from various natural sources due to their versatile biological activities that find great use in biomedical and industrial applications. In the present study, sulfated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ebc09e82f320a90c7bca3b01710c5ca
https://doi.org/10.1088/1757-899x/464/1/012007
https://doi.org/10.1088/1757-899x/464/1/012007
Autor:
Ismail A. Abdelhamid, Fathy Mohamed Abdel-Gallil, Daisy H. Fleita, Elham S. Darwish, Miead Adel Nasra
Publikováno v:
Helvetica Chimica Acta. 93:1204-1208
The three-component Biginelli-like cyclocondensation reaction of enamines 1, urea, and aldehydes in dioxane/acetic acid efficiently afforded the corresponding 6-unsubstituted 3,4-dihydropyrimidin-2(1H)-ones 2 in good yields (Scheme 1, Table). The cor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3877b0a356f8eba28d820d1ea258aef2
https://doi.org/10.1002/hlca.200900355
https://doi.org/10.1002/hlca.200900355
Autor:
Elham S. Darwish, Fathy Mohamed Abdel-Gallil, Daisy H. Fleita, Ismail A. Abdelhamid, Miead Adel Nasra
Publikováno v:
Synthesis. 2010:1107-1112
Novel azaenamines incorporating a tetrahydrothiophene moiety were prepared. Michael addition of an azaenamine with α,β-unsaturated nitriles took place to give [1]benzothieno[3',2':5,6]pyrimido[1,2-b]pyridazine (thia-triaza-benzo[a]fluorene) derivat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d46fc90d403cfb449da8816d1c5bdc2d
https://doi.org/10.1055/s-0029-1219235
https://doi.org/10.1055/s-0029-1219235