1-(4-Chlorobenzyl)-4-[[(N-Boc-valyl)amino]methyl]piperidine → 1-(4-Chlorobenzyl)-4-[(valylamino)methyl]piperidine

関与物質

反応条件

反応手順

1-(4-Chlorobenzyl)-4-[{(N-Boc-valyl)amino}methyl]piperidine (1.1 g, 2.51 mmol) was dissolved in 3 M HCl-CH3OH solution (25 mL) and stirred at 25° C. for 1 h. The reaction mixture was concentrated and the resulting salt was dissolved in 3:1 tBuOH—H2O (25 mL). Anion (OH−) exchange resin was added until the solution was slightly basic. Filtration and concentration afforded 1(4-chlorobenzyl)-4-{(valylamino)methyl}piperidine (819 mg, 97%) which required no further purification: RPLC (97%); ESI/MS 338.1 (M++H, C19H28ClN3O).

情報源と証拠