4-Methylmorpholine → HCID 22178580, 화합물

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3-Amino-6-isopropyl-1-(tert-butoxycarbonylmethyl)-2-pyridinone (assumed to be 3.37 mmol), as prepared in the preceding step, and N-methylmorpholine (1.0 mL, 9.1 mmol) were dissolved in methylene chloride (20 mL) and cooled to 0° C. A solution of m-toluenesulfonyl chloride (0.67 g, 3.5 mmol) in methylene chloride (5 mL) was added and the reaction stirred at ambient temperature for 16 hours. After evaporation in vacuo, the crude product was dissolved in methylene chloride, washed with 10% aqueous citric acid, saturated NaHCO3, and brine, dried over MgSO4, and filtered. The evaporated filtrate gave the title compound (1.24 g, 88%) as a tan solid. 1H NMR (300 MHz, CDCl3) δ7.65 (m, 2H), 7.58 (br s, 1H), 7.46 (d, 1H, J=7.8 Hz), 7.33 (m, 2H), 6.08 (d, 1H, J=7.9 Hz), 4.69 (s, 2H), 2.67 (m, 1H), 2.38 (s, 3H), 1.41 (s, 9H), 1.22 (s, 3H), 1.19 (s, 3H).

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