Piperidin-4-ol → [Tert-butoxycarbonylimino-(4-hydroxy-piperidin-1-yl)-methyl]-carbamic acid tert-butyl ester
反応式
[OH:1][CH:2]1[CH2:7][CH2:6][NH:5][CH2:4][CH2:3]1.[C:8]([O:12][C:13](=[O:29])[NH:14][C:15](=[N:21][C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])N1C=CC=N1)([CH3:11])([CH3:10])[CH3:9]>C1COCC1>[C:25]([O:24][C:22](=[O:23])[NH:21][C:15](=[N:14][C:13]([O:12][C:8]([CH3:11])([CH3:10])[CH3:9])=[O:29])[N:5]1[CH2:6][CH2:7][CH:2]([OH:1])[CH2:3][CH2:4]1)([CH3:28])([CH3:27])[CH3:26]参加物
4
実験手順
4-Hydroxypiperidine (0.25 g, 2.5 mmol) and (tert-butoxycarbonylimino-pyrazol-1-yl-methyl)-carbamic acid tert-butyl ester (0.78 g, 2.2 mmol) (Drake, B. et al. Synthesis 1994, 6, 579-582) were dissolved in THF (1 mL) and stirred for 1 hour. The solvent was removed under reduced pressure and EtOAc (20 mL) was added. The organic was washed with an aqueous solution of 15% NaOH (5×15 mL), dried (Na2SO4) and concentrated under reduced pressure to afford [tert-butoxycarbonylimino-(4-hydroxy-piperidin-1-yl)-methyl]-carbamic acid tert-butyl ester as a white solid (0.47 g, 55%).