Реакция #2092

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Растворители

Условия реакции

Подробные условия
See reaction.notes.procedure_details.

Обработка

  1. 1
    Фильтрацияthe mixture was filtered
  2. 2
    Концентрированиеconcentrated
  3. 3
    Другоеthe residue which remained was chromatographed (eluent: dichloromethane/methanol 20:1)

Методика

20 g (0.078 mol) of 7-benzyl-3-methylxanthine were stirred at 80° C. for 6 hours with 8.8 g (0.094 mol) of ethoxymethyl chloride and 13 g of potassium carbonate in 500 ml of absolute dimethylformamide, the mixture was filtered and concentrated, and the residue which remained was chromatographed (eluent: dichloromethane/methanol 20:1).

Источник

DOI: 10.6084/m9.figshare.5104873.v1Патент: US05728686uspto-grants-1998_03