反应详情

The same operation as in Example (158a) was performed using cis(±)-4-chloro-5-ethyl-N-(3-methoxypiperidin-4-yl)-1H-imidazole-2-carboxamide hydrochloride obtained in Example (159a) (38.22 mg, 0.12 mmol), ethyl 2-fluoropyridine-4-carboxylate (20 mg, 0.12 mmol) (reference: Journal of Medicinal Chemistry; English; 33; 6; 1990; 1667-1675) and diisopropylethylamine (45.85 mg, 0.35 mmol), to obtain 15.3 mg of the title compound as a yellow oily substance (30%).