4-Fluorophenyl isothiocyanate → 3-(4-Fluorophenyl)-2-thioxo-2,3-dihydropyrido[3,2-d]pyrimidin-4(1H)-one

関与物質

反応条件

反応手順

A mixture of ethyl 3-aminopyridine-2-carboxylate (2.0 g, 12.0 mmol) and 4-fluorophenylisothiocyanate (1.84 g, 12.0 mmol) in 7 mL of anhydrous pyridine is stirred at 45° C. for 21 h. After cooling, the pyridine is evaporated in vacuo, and ice water is added to the residue. The resulting mixture is slurried in EtOAc and filtered to give the title compound as a white solid. 1H NMR (400 MHz, DMSO-d6) δ 8.59 (1H, m), 7.79 (2H, m), 7.33 (4H, m).

情報源と証拠