反应详情

N-(2-Methylpropyl)-N-[(quinolin-3-yl)methyl]piperidin-4-amine (0.74 g, 2.50 mmol) is dissolved in diethyl ether (35 ml) and methanol (6 ml). Fumaric acid (0.29 g, 2.50 mmol), in warm methanol (4 ml), is then added. Diethyl ether (100 ml) is added and the solution is heated. The solution is slowly cooled and then placed in the freezer. The solid is filtered and washed with diethyl ether to yield (0.79 g, 76%) of the title product: mass spectrum (ion spray): m/z=298.1 (M+1); 1H NMR (DMSO-d6): δ=8.84 (d, 1H), 8.16 (d, 1H), 7.98-7.91 (m, 2H), 7.71-7.68 (m, 1H), 7.58-7.54 (m, 1H), 6.42 (s, 2H), 3.75 (s, 2H), 3.25-3.22 (m, 2H), 2.76-2.70 (m, 3H), 2.21 (d, 2H), 1.83-1.59 (m, 6H), 0.76 (d, 6H).

1. temperaturethe solution is heated
2. temperatureThe solution is slowly cooled
3. filtrationThe solid is filtered
4. washwashed with diethyl ether