Zobrazeno 1 - 9
of 9
pro vyhledávání: '"M H, Elgamal"'
Autor:
Mohamed M. Abdalla, Thoreya A. Nassear, A. E. Amr, A. E. Haschich, M. M. H. Areef, Samy A. Essaouy, M. H. Elgamal
Publikováno v:
Russian Journal of General Chemistry. 87:1826-1833
A number of substituted 4-methoxy-7-methyl-6-(substituted methyl)-5-oxo-5H-furo[3,2-g]-chromene-9-sulfonates 3a–3f and 4a–4c were synthesized. Treatment of visnagin-9-sulphonyl esters by secondary amines gave the substituted 6,7-dihydro-4-methoxy
Autor:
A. E. Haschich, Mohamed A. Al-Omar, M. M. H. Areef, A. E. Amr, Mohamed M. Abdalla, Samy A. Essaouy, Thoreya A. Nassear, M. H. Elgamal
Publikováno v:
Russian Journal of General Chemistry. 87:1591-1600
Synthesized visnagin-9-sulfonyl esters underwent cleavage of their pyran ring upon treatment by hydroxylamine hydrochloride, hydrazine hydrate and primary amines. Reaction of visnagin-9-sulfonyl chloride 1 with alcohols or phenol gave the correspondi
Autor:
Mohamed M. Abdalla, A. E. Haschich, Samy A. Essaouy, M. M. H. Areef, Thoreya A. Nassear, M. H. Elgamal, A. E. Amr
Publikováno v:
Russian Journal of General Chemistry. 87:1601-1609
A series of substituted 7H-furo[3,2-g]chromen-7-one and furo[3,2-g]chromeno[2,3-c]pyrazole derivatives (2–9) were synthesized by using 5-hydroxy-4-methoxy-7H-furo[3,2-g]chromen-7-one (5-hydroxybergapten) and 5-hydroxy-4,9-dimethoxy-7H-furo[3,2-g]ch
Publikováno v:
Russian Journal of General Chemistry. 87:305-310
A series of substituted androstanopyridine derivatives 2–5 were synthesized using 17-acetyl- 1,7,8,10,11,12,13,15,16,17-decahydro-10,13-dimethyl-2H-cyclopenta[a]-phenanthren-3(6H,9H,14H)-one (progesterone, 1) as a starting material. Reaction of 1a
Publikováno v:
Russian Journal of General Chemistry. 85:2174-2182
A series of pyrazoloandrostane derivatives was synthesized from arylmethylene 3β-hydroxyandrostan-17-one derivatives k]which were treated with hydrazine hydrate in different conditions to give the corresponding pyrazolotetradecahydro-3-hydroxy-10,13
Publikováno v:
Phytotherapy research : PTR. 13(5)
Different extracts of both fresh and dry leaves of Aloe eru A. Berger, A. vera L. WebbBerth and A. arborescens Mill. were screened for their antifungal activity against Aspergillus niger, Cladosporium herbarum and Fusarium moniliforme. The toxicity o
Publikováno v:
Planta medica. 36(2)
Autor:
K, Seifert, M H, Elgamal
Publikováno v:
Die Pharmazie. 32(10)
Autor:
M H, Elgamal, B A, El-Tawil
Publikováno v:
Planta medica. 27(2)