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Keywords = bis-triazolo pyrimidine

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9 pages, 478 KiB  
Article
Synthesis and Chemical Characterisation of Some New Diheteroaryl Thienothiophene Derivatives
by Yahia Nasser Mabkhot, Abdullah Mohammad Al-Majid and Abdullah S. Alamary
Molecules 2011, 16(9), 7706-7714; https://doi.org/10.3390/molecules16097706 - 8 Sep 2011
Cited by 18 | Viewed by 5775
Abstract
Treatment of 1-(5-acetyl-3,4-dimethythieno[2,3-b]thiophene-2yl)ethanone (1) with dimethylformamide dimethyl acetal afforded enaminone derivative 2, which reacted with amino derivatives to give the corresponding bis-pyrimidine, bis-pyrazole, bis-triazolo-pyrimidine and bis-benzoimidazopyrimidine derivatives. Full article
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6 pages, 59 KiB  
Article
Pyrimidine Acyclo-C-Nucleosides by Ring Transformations of 2-Formyl-L-arabinal
by Ahmed Bari, Holger Feist, Manfred Michalik and Klaus Peseke
Molecules 2005, 10(8), 837-842; https://doi.org/10.3390/10080837 - 31 Aug 2005
Cited by 11 | Viewed by 8428
Abstract
The protected 2-formyl-L-arabinal 2 reacted with thiourea and cyanamide in the presence of sodium hydride to afford via ring transformations the 5-[1R,2S-1,2- bis(benzyloxy)-3-hydroxypropyl]-1,2-dihydropyrimidines 3 and 4, respectively. Similarly, treatment of 2 with 3-amino-2H-1,2,4-triazole yielded 6-[1R,2S-1,2- bis(benzyloxy)-3-hydroxypropyl][1,2,4]-triazolo[1,5-a]pyrimidine (5). Full article
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