7-Substituted 8-vinyl-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-diones and their broncholytic activity
作者:E. Nemčeková、A. Rybár、G. Nosál'ová、J. Alföldi
DOI:10.1007/bf00807173
日期:1995.6
Alkylation of 8-vinyl-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione (1) with alkyl halides in DMF in the presence of potassium carbonate, or alternatively, alkylation of its sodium salt (2) with alkyl iodide or hydroxyalkyl iodide afforded the 7-alkyl- or 7-(omega-hydroxyalkyl)-8-vinyl-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-diones. 3. 2-Substituted oxiranes reacted with 1 catalyzed by 2 or Triton B to yield 7-(2-hydroxyalkyl)-8-vinyl-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-diones 4. Compounds 3 and 4 were tested for broncholytic activity. The most effective derivatives were 3c and 4b.