反应详情

1-{1-[2-(7-Methoxy-2,2-dimethyl-4-oxochroman-8-yl)ethyl]piperidin-4-yl}-N-methyl-1H-indole-6-carboxamide (1.00 g) and fumaric acid (0.249 g) were dissolved in a mixed solvent consisting of acetone (5 ml) and water (15 ml) at 60° C. Thereafter, the obtained mixture was left at room temperature for 1 hour. The deposited solid was collected by filtration, and the obtained product was then washed with a mixed solvent consisting of acetone (2.5 ml) and water (7.5 ml), so as to obtain the subject compound (1.09 g).

1. filtrationThe deposited solid was collected by filtration
2. washthe obtained product was then washed with a mixed solvent