Hydrochloric Acid → HCID 22266081, compound

Participants

Reaction Steps

{5-[1-(4-{3-[N,N-Bis-(tert-butoxycarbonyl)amino-methyl]-phenyl}-piperidin-1-yl)-methanoyl]-pyridin-3-yl}-pyridin-3-ylmethyl-carbamic acid dimethyl-ethyl ester (0.0250 g, 0.0356 mmol) was treated with 5-6 M HCl in isopropanol (1.0 mL, 8.0 mmol) and stirred at ambient temperature. After 90 minutes the reaction mixture was diluted with methyl alcohol (0.5 mL) and stirring was continued for an additional 75 minutes. Dripping the reaction solution into ether (40 mL) with vigorous stirring afforded a white precipitate which was collected by filtration, washed with fresh ether (3.0 mL), and dried to afford 1-[4-(3-aminomethyl-phenyl)-piperidin-1-yl]-1-{5-[(pyridin-3-ylmethyl)-amino]-pyridin-3-yl}-methanone tetrahydrochloride (0.0160 g): 1H NMR (300 MHz, DMSO-d6) δ 8.60-8.95 (m, 2H), 8.39 (br s, 2H), 8.29 (d, J=8.0 Hz, 1H), 7.97-8.25 (m, 2H), 7.65-7.85 (m, 2H), 7.47 (d, J=8.0 Hz, 2H), 7.20-7.38 (m, 3H), 4.63 (s, 2H), 4.43-4.61 (m partially obscured, 1H), 4.00 (AB q, J=5.8 Hz, 2H), 3.05-3.25 (m partially obscured, 1H), 2.72-2.95 (m, 2H), 1.80-1.88 (m, 1H), 1.47-1.77 (m, 3H); MS (CI) m/z 402 (M+H).

Provenance & Evidence