Search Results - "Derbala, Hamed A. Y."

Development of Chromone–Pyrazole-Based Anticancer Agents by Marwa S. Salem, Eman A. E. El-Helw, Hamed A. Y. Derbala

“…Chemical reactivity of 4-((6-chloro-4-oxo-4 H -chromen-3-yl)methylene)-2-phenyloxazol-5(4 H )-one towards nitrogen and sulfur nucleophiles, as well as…”
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Heteroannulated Quinazoline and Quinazolinone Derivatives from (Z)-2-[1-Benzamido-2-(3,4,5-trimethoxyphenyl)]vinyl-3,1-benzoxazin-4(3H)-one by Mahmoud, Mahmoud R., Derbala, Hamed A. Y.

“…The title compound 1 was prepared and allowed to react with a series of nitrogen nucleophiles to afford the quinazoline and quinazolinone derivatives 2-12 and…”
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A new synthesis of 4‐cyano‐1,3‐dihydro‐2‐oxo‐2 H ‐imidazole‐5‐(N 1 ‐tosy1)carboxamide : reactive precursor for thiopurine analogues by Hamad, Abdel‐Sattar S., Derbala, Hamed D. A. Y.

“…Abstract N ‐[(5‐Cyano‐2‐oxoimidazolidin‐4‐yl)‐iminomethyl]‐ p ‐toluensulfonamide 3 was prepared in fairly good yield by the base catalyzed cyclisation of N…”
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A new synthesis of 4-cyano-1,3-dihydro-2-oxo-2H-imidazole-5-(N1-tosy1)carboxamide : reactive precursor for thiopurine analogues by Hamad, Abdel-Sattar S., Derbala, Hamed D. A. Y.

“…N‐[(5‐Cyano‐2‐oxoimidazolidin‐4‐yl)‐iminomethyl]‐p‐toluensulfonamide 3 was prepared in fairly good yield by the base catalyzed cyclisation of…”
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