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Synthesis of Certain 3-Aminopyrazolo[5,4-b]pyridine and 3,4-Substituted Pyrido[2′,3′：3,4]pyrazolo[5,1-c][1,2,4]triazine Derivatives

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Chinese Journal of Chemistry 2007年第12期25卷 1887-1891页

作者： EL-LOUH, Ali Khader Khalil abunada, Nada Mohamed EL-SHOUBAKI, Mohamed Chemistry Department Faculty of Science Al-Azhar University-Gaza Gaza 76888 Palestine Chemistry Department Faculty of Applied Sciences Al-Aqsa University Gaza Palestine 4051 Israel

2-Thioxo-1,2-dihydropyridine derivatives 2a, 2b were reacted with methyl iodide to give 2-methylthiopyridines 3a, 3b, which were reacted with hydrazine hydrate to produce 3-aminopyrazolo[5,4-b]pyridines 4a, 4b. Compounds 4a, 4b were diazotized to afford the corresponding diazonium salts 5a, 5b, which were reacted with some active methylene compounds 6a-6h to give the corresponding pyrido[2′,3′ ： 3,4]pyrazole[5,1-c][1,2,4]triazines 7-14.

关键词： pyrazolo[3,4-b]pyridine pyrido[2′,3′ : 3,4]pyrazole[5 1-c] [ 1,2,4]triazine 2-arylmethylidene-2-cyanothioacetamine 2-thioxopyridine

Synthesis of some new Indeno[1,2-e]pyrazolo[5,1-c]-1,2,4-triazin-6-one and Indeno[2,1-c]pyridazine-4-carbonitrile Derivatives

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Natural Science 2010年第12期2卷 1349-1355页

作者： Hamdi M. Hassaneen Nada M. abunada Huwaida M. Hassaneen 不详

Diazonium chlorides of 5-amino-3-methypyrazole 1a and 5-amino-4-phenylpyrazole 1b coupled with 1,3-indanedione 2 and led to the formation of acyclic hydrazone 3a and a cyclic product indenopyrazolotriazine 4b respectively. Cyclization of the hydrazone 3a by boiling in acetic acid afforded the corresponding 4a. The hydrazone 3a reacted with malononitrile in boiling ethanol in the presence of piperidine and gave indeno[2,1-c]pyridazine-4-carbonitrile derivatives 5a,b. Also, coupling of 6 with aryl diazonium chlorides gave the corresponding indenopyridazine derivatives 8a-e. Acetylation, benzoylation and hydrolysis of compound 8a afforded the corresponding substitution products 10-12, respectively. The structures of the newly synthesized compounds were established on the basis of chemical and spectral evidences.

关键词： Diazonium Chlorides Indenopyrazolotriazine Indenopyridazine

Nutritional assessment of zinc among adolescents in the Gaza Strip-Palestine

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Open Journal of Epidemiology 2013年第3期3卷 105-110页

作者： Osama S. abunada Marwan O. Jalambo Mai Ramadan Baker Zabut Faculty of Pharmacy Alazhar University Gaza Palestine Faculty of Science Islamic University Gaza Palestine Foods and Chemicals Products Laboratory Ministry of National Economy Gaza Palestine Medical Services Gaza Palestine

Zinc deficiency, obesity and stunting can be observed together in some developing countries. Moreover, zinc deficiency may enhance fat deposition and decrease lean body mass. In term of health, adequate absorbable zinc in food is essential for human health and growth. On the other hand, zinc deficiency affects children’s physical growth and deteriorates health status and increases the risk and severity of a variety of infectious diseases. The aim of the study is to assess zinc nutritional status among early adolescents in the GazaStrip-Palestine. Methods: A cross sectional study had been performed on 296 adolescents aged 12-15 years old. Three areas in theGazaStrip were chosen randomly. Systematically, pupils of 7th, 8th and 9th grades were selected. Height and weight measures were taken. Questionnaires including dietary habit and physical activities of pupils were collected in addition to serum zinc level measure. Results: The overall prevalence of serum zinc deficiency among adolescents was 42.5%. Zinc deficiency was more prevalent among the females (47.7%) than the males (37.2%). The overall prevalence of high body mass index was 29%. The overall prevalence of stunting was 7.6%. The stunted males (8.8%) were more prevalent than the females (6.4%). Forty-nine percent of the females live in sedentary life style, whereas 55% of the males practiced active and very active leisure physical activity. The females were less consuming of meat, eggs and milk than the males. Serum zinc level is associated positively with consumption of meat, BMI for age, stunting and physical activities. Conclusion: Zinc deficiency is prevalent among adolescents. Serum zinc level was affected positively by consumption of animal food sources. Zinc deficiency is associated positively with the life style characteristic of adolescents in the GazaStrip.

关键词： Zinc Adolescent Physical Activity Gaza Palestine

Reaction of thiocarboxanilide derivatives of 2-phenylimino-3-phenyl-4-thiazolidinone and 1,3-diphenyl-2-thioxo-4-imidazolone with hydrazonoyl halides and active chloromethylene compounds

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Natural Science 2011年第3期3卷 199-207页

作者： Hamdi M. Hassaneen Omar A. Miqdad Nada M. abunada Ahmad A. Fares 不详

The potassium salts of thiocarboxanilide of 2- phenylimino-3-phenyl-4-thiazolidinone and 1,3- diphenyl-2-thioxo-4-imidazolone react with hydrazonoyl halides in N,N-dimethylformamide to afford the corresponding 1,3,4-thiadiazoline derivatives. 2-Phenylimino-3-phenyl-4-thiazolidinone reacts with active chloromethylene compounds in N,N-dimethylformamide to give the corresponding thiazolylidenethiazolidin-4-one derivatives. The new compounds were characterized using IR, 1H NMR, 13C NMR and mass spectra.

关键词： Hydrazonoyl Halides 1 3 4-Thiadiazoline Thiazolidinone

Synthesis of some new indeno[1,2-e]pyrazolo[5,1-c]-1,2,4-triazin-6-one and indeno[2,1-c]pyridazine-4-carbonitrile derivatives

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