Sodium Chloride → HCID 54017983, compound

To a stirring suspension of sodium hydride (5.52 g, 230 mmol) in anhydrous dimethylsulfoxide (500 ml) was added 6-amino-1-methyluracil (28.2 g, 200 mmol). After stirring at room temperature under argon for 2 hours, (R)-5-Acetoxy-1-chlorohexane (37.5 g, 210 mmol) was added neat and the mixture was stirred at 80° C. for 16 hours. After cooling to room temperature, the mixture was poured into saturated aqueous sodium chloride solution (1500 ml) and extracted with ethyl acetate (9×200 ml). The combined extracts were washed with water (2×50 ml), with saturated aqueous sodium chloride solution (50 ml) and dried over magnesium sulfate. After evaporation of the solvent under reduced pressure, the resulting oil was treated with ethyl ether (400 ml). After stirring overnight at room temperature, the precipitate was filtered and rinsed with ether (2×50 ml) to provide (R)-3-(5-acetoxyhexyl)-6-amino-1-methyluracil (44.0 g, 78% yield) as a beige powder.

1. stirringthe mixture was stirred at 80° C. for 16 hours
2. temperatureAfter cooling to room temperature
3. extractionextracted with ethyl acetate (9×200 ml)
4. washThe combined extracts were washed with water (2×50 ml), with saturated aqueous sodium chloride solution (50 ml)
5. dry with materialdried over magnesium sulfate
6. customAfter evaporation of the solvent under reduced pressure
7. additionthe resulting oil was treated with ethyl ether (400 ml)
8. stirringAfter stirring overnight at room temperature
9. filtrationthe precipitate was filtered
10. washrinsed with ether (2×50 ml)

ORD record

ord-0ee907bed1aa4f64b6bdf5c13c3c46a2

Source dataset

uspto-grants-2004_08

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US06774130B2