(2S)-2-amino-N-cyclohexyl-3-phenylpropanamide

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of L-Phenylalanine cyclohexylamide (2.5 g, 10.1 mmol) in tetrahydrofuran (25 mL) was added 1,3-propanesultone (1.17 g, 9.7 mmol). The solution was stirred at reflux for 2 hours. It was cooled to room temperature. The solid was collected by filtration, washed with acetone (2×25 mL) and dried in the vacuum oven (50° C.), affording the title compound (1.39 g, 39%). 1H NMR (D2O, 500 MHz) δ ppm 7.21 (m, 3H), 7.08 (m, 2H), 4.42 (m, 0.5H), 3.83 (m, 1H). 3.29 (m, 1H), 3.15 (m, 1H), 3.02 (m, 2H), 2.86 (m, 3H), 2.49 (m, 0.5H), 2.01 (m, 2H), 1.54 (m, 1H), 1.45 (m, 1H), 1.33 (m, 2H), 1.02 (m, 4H), 0.55 (m, 1H). 13C (D2O, 125 MHz) δ ppm 133.71, 129.54, 129.18, 128.03, 62.08, 49.25, 47.97, 45.41, 36.29, 31.73, 31.46, 24.86, 24.28, 24.20, 21.39. [α]D=+36.4° (c=0.0019 in water), ES-MS 369 (M+1). at reflux for 2 hours The solid was collected by filtration washed with acetone (2×25 mL) dried in the vacuum oven (50° C.)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of L-Phenylalanine cyclohexylamide (2.5 g, 10.1 mmol) in tetrahydrofuran (25 mL) was added 1,3-propanesultone (1.17 g, 9.7 mmol). The solution was stirred at reflux for 2 hours. It was cooled to room temperature. The solid was collected by filtration, washed with acetone (2×25 mL) and dried in the vacuum oven (50° C.), affording the title compound (1.39 g, 39%). 1H NMR (D2O, 500 MHz) δ ppm 7.21 (m, 3H), 7.08 (m, 2H), 4.42 (m, 0.5H), 3.83 (m, 1H). 3.29 (m, 1H), 3.15 (m, 1H), 3.02 (m, 2H), 2.86 (m, 3H), 2.49 (m, 0.5H), 2.01 (m, 2H), 1.54 (m, 1H), 1.45 (m, 1H), 1.33 (m, 2H), 1.02 (m, 4H), 0.55 (m, 1H). 13C (D2O, 125 MHz) δ ppm 133.71, 129.54, 129.18, 128.03, 62.08, 49.25, 47.97, 45.41, 36.29, 31.73, 31.46, 24.86, 24.28, 24.20, 21.39. [α]D=+36.4° (c=0.0019 in water), ES-MS 369 (M+1). at reflux for 2 hours The solid was collected by filtration washed with acetone (2×25 mL) dried in the vacuum oven (50° C.)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of L-Phenylalanine cyclohexylamide (2.5 g, 10.1 mmol) in tetrahydrofuran (25 mL) was added 1,3-propanesultone (1.17 g, 9.7 mmol). The solution was stirred at reflux for 2 hours. It was cooled to room temperature. The solid was collected by filtration, washed with acetone (2×25 mL) and dried in the vacuum oven (50° C.), affording the title compound (1.39 g, 39%). 1H NMR (D2O, 500 MHz) δ ppm 7.21 (m, 3H), 7.08 (m, 2H), 4.42 (m, 0.5H), 3.83 (m, 1H). 3.29 (m, 1H), 3.15 (m, 1H), 3.02 (m, 2H), 2.86 (m, 3H), 2.49 (m, 0.5H), 2.01 (m, 2H), 1.54 (m, 1H), 1.45 (m, 1H), 1.33 (m, 2H), 1.02 (m, 4H), 0.55 (m, 1H). 13C (D2O, 125 MHz) δ ppm 133.71, 129.54, 129.18, 128.03, 62.08, 49.25, 47.97, 45.41, 36.29, 31.73, 31.46, 24.86, 24.28, 24.20, 21.39. [α]D=+36.4° (c=0.0019 in water), ES-MS 369 (M+1). at reflux for 2 hours The solid was collected by filtration washed with acetone (2×25 mL) dried in the vacuum oven (50° C.)