A solution of 4-phenoxyaniline (185 mg) in DMF (1 ml) was added dropwise to a solution, cooled to 0° C., of carbonyldiimidazole (162 mg) in DMF (1 ml). After 30 minutes, 4-[(1R,9aR)-1-(octahydroquinolizin-1-yl)-methoxy]-phenylamine (289 mg) in DMF (1 ml) was added dropwise. The reaction solution was kept firstly at room temperature for 2 hours and then at 80° C. for 30 minutes. The mixture was added dropwise to water (20 ml), and the resulting precipitate was filtered off with suction and washed with water. Alternatively, the product can also be extracted with ethyl acetate and purified after concentration by chromatography. The product with the molecular weight of 471.60 (C29H33N3O3); MS (ESI): 472 (M+H+) was obtained in this way.
