Hydrochloric Acid → N-[(1R)-1-(5-hydroxypyridine-2-yl)ethyl]-2-(4-isopropylphenyl)acetamide

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2-(4-Isopropylphenyl)-N-[(1R)-1-(5-methoxypyridin-2-yl)ethyl]acetamide (3.8 g, 12.2 mmol) (Example 11) was dissolved in DMSO (20 mL) and transferred to a sealed tube. To this solution was added NaCN (3.6 g, 73.0 mmol) and the mixture was stirred at 175° C. for 16 h. The mixture was cooled to room temperature and diluted with CH2Cl2 (200 mL) and water (100 mL). The pH of the aqueous layer was brought to neutral by the addition of 2N HCl and the layers were separated. The organic layer was washed with water (100 mL) and brine (100 mL), concentrated, and purified by normal phase chromatography (2-10% MeOH/CH2Cl2) to give N-[(1R)-1-(5-hydroxypyridine-2-yl)ethyl]-2-(4-isopropylphenyl)acetamide as a tan solid. 1H NMR (CDCl3, 400 MHz) δ 8.06 (t, J=1.65 Hz, 1H), 7.17 (m, 4H), 7.02 (m, 2H), 6.67 (d, J=7.50 Hz, 1H), 5.03 (quint., J=6.96 Hz, 1H), 3.53 (d, J=2.20 Hz, 2H), 2.88 (sept., J=6.69 Hz, 1H), 1.38 (d, J=6.77 Hz, 3H), 1.23 (d, J=6.95, 6H); MS (Electrospray): m/z 299.3 (M+H).

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