111105-72-7Relevant academic research and scientific papers
Purine derivatives and medicinal use thereof
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, (2008/06/13)
A novel purine derivative exhibiting an effect to control inflammatory symptoms characteristic to nephritis and a medicine comprising this compound as an effective ingredient are provided. The compound is represented by the following general formula (I), wherein R1 is a hydrocarbon group having 17 or less carbon atoms and R2 is a hydrocarbon group having 16 or less carbon atoms, wherein one or more CH2 g roups in the hydrocarbon group which 7013 do not directly bind with the carbon atom at 2 or 7 position of the purine ring replaced are by carbonyl groups, sulfonyl groups, O, or S and/or one or more CH groups in the hydrocarbon group which do not directly bind with the carbon atom at 2 or 7 position of the purine ring are replaced by N, C-halogen, or C—C≡N, or a pharmaceutically acceptable salt thereof.
Antitumour Imidazotetrazines. Part 12. Reactions of Mitozolomide and its 3-Alkyl Congeners with Oxygen, Nitrogen, Halogen, and Carbon Nucleophiles
Baig, Ghouse Unissa,Stevens, Malcolm F. G.
, p. 665 - 670 (2007/10/02)
Mitozolomide (1) and its 3-alkyl congeners ring-open in aqueous sodium carbonate to form 5-(3-alkyltriazen-1-yl)imidazole-4-carboxamides.The 3-methyl and 3-ethyl analogues of mitozolomide decompose in alcohols to form 2-azahypoxanthine and 5-amino-1-alkoxycarbonylimidazole-4-carboxamides.In hydrazine hydrate mitozolomide yields, principally, 5-azidoimidazole-4-carboxamide, whereas the 3-alkyl-derivatives form 5-amino-4-carbamoylimidazole-1-carbohydrazide. 5-Diazoimidazole-4-carboxamide, generated by thermolysis of mitozolomide in acetic acid or pyridine, can be trapped by reactive methylenic ketones, nitriles or esters to afford imidazotriazines.
