Hydrochloric Acid → HCID 57579070, compound

Participants

Reaction Steps

3-((6-Amino-8-methoxy-2-(2-methoxyethoxy)-9H-purin-9-yl)methyl)benzonitrile (9) (50 mg) was dissolved in acetonitrile (2 mL). A 6N aqueous HCl solution (2 mL) was added and the mixture was stirred at ambient temperature overnight. After evaporation to dryness, the residue was dissolved in DMF (1 mL). Potassium carbonate (100 mg) and ethyl iodide (0.02 mL) were added and the mixture was stirred at ambient temperature for 5 hours. After dilution with water (20 mL) the product was extracted with dichloromethane. The combined organic layers were washed with water and brine, dried with Na2SO4 and evaporated under vacuum. Purification by flash chromatography on silica gel (eluent: 0-10% MeOH in ethyl acetate) gave 3-((6-amino-7-ethyl-2-(2-methoxyethoxy)-8-oxo-7,8-dihydropurin-9-yl)methyl)benzonitrile (10) (35 mg) as a colorless glass.

Provenance & Evidence