HCID 67969353、化合物 → tert-Butyl ((3S,5R)-5-methylpiperidin-3-yl)carbamate
反応式
C([N:8]1[CH2:13][C@H:12]([CH3:14])[CH2:11][C@H:10]([NH:15][C:16](=[O:22])[O:17][C:18]([CH3:21])([CH3:20])[CH3:19])[CH2:9]1)C1C=CC=CC=1>CO.[Pd]>[CH3:14][C@H:12]1[CH2:13][NH:8][CH2:9][C@@H:10]([NH:15][C:16](=[O:22])[O:17][C:18]([CH3:21])([CH3:20])[CH3:19])[CH2:11]1参加物
4
実験手順
10 wt % Pd on carbon (120 mg, 0.11 mmol) was added to a solution of tert-butyl [(3S,5R)-1-benzyl-5-methylpiperidin-3-yl]carbamate (0.34 g, 1.1 mmol) in MeOH (15.0 mL). The mixture was stirred at room temperature under a hydrogen atmosphere (1 atm.) for 15 h. The reaction was filtered through a pad of diatomaceous earth (eluted with MeOH), and then concentrated under reduced pressure. The resulting crude product was used directly in the next step residue without further purification (0.21 g, 88%). LCMS calc. for C11H23N2O2 (M+H)+: m/z=215.2. found 215.2. 1H NMR (CDCl3, 400 MHz) δ 4.33 (1H, m), 3.46 (1H, m), 3.25 (1H, m), 2.94 (1H, dd, J=3.6 and 12.8 Hz), 2.18-2.02 (3H, m), 1.60 (1H, m), 1.43 (9H, s), 0.85 (3H, d, J=6.8 Hz) ppm.