Phenol → HCID 21913507, compound

Temperature

110 °C

The method described in Example 80, Part E was used with the following exceptions. A solution of phenol (2.11 g, 22.4 mmol) in diglyme (5 mL) was added to the sodium hydride dispersion (0.87 g, 22 mmol) in diglyme (10 mL). A solution of (2-chloro-5,6-dimethyl-3-nitropyridin-4-yl)-{2-[3-(1,3-thiazol-2-yl)propoxy]ethyl}amine (4.6 g, 15 mmol) in diglyme (25 mL) was added, and the addition flask was rinsed with additional diglyme (2×5 mL), which was added to the reaction flask. The resulting amber solution was heated at 110° C. for 3.25 hours and then allowed to cool to room temperature. The volatiles were removed under reduced pressure, and the residue was dissolved in ethyl acetate (100 mL). The solution was washed with saturated aqueous ammonium chloride (1×50 mL), 1 N potassium hydroxide (2×50 mL), and brine (2×50 mL), and then dried over magnesium sulfate, filtered, and concentrated under reduced pressure to provide an oil. The oil was dried for three days under high vacuum at room temperature to provide 4.7 g of (2,3-dimethyl-5-nitro-6-phenoxypyridin-4-yl)-{2-[3-(1,3-thiazol-2-yl)propoxy]ethyl}amine as an oil.

1. washthe addition flask was rinsed with additional diglyme (2×5 mL), which
2. additionwas added to the reaction flask
3. temperatureto cool to room temperature
4. customThe volatiles were removed under reduced pressure
5. dissolutionthe residue was dissolved in ethyl acetate (100 mL)
6. washThe solution was washed with saturated aqueous ammonium chloride (1×50 mL), 1 N potassium hydroxide (2×50 mL), and brine (2×50 mL)
7. dry with materialdried over magnesium sulfate
8. filtrationfiltered
9. concentrationconcentrated under reduced pressure
10. customto provide an oil
11. customThe oil was dried for three days under high vacuum at room temperature

ORD record

ord-90cdd06058d346e1956a68bbc813f57c

Source dataset

uspto-grants-2007_05

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US07220758B2