p-Toluenesulfonic acid → 5-Methyl-4-[2-(tetrahydro-pyran-4-yloxy)-pyridin-3-ylamino]-thieno[2,3-d]pyrimidine-6-carboxylic acid methyl ester

関与物質

反応手順

2-(Tetrahydro-2H-pyran-4-yloxy)pyridin-3-amine (0.99 g, 5.10 mmol), methyl 4-chloro-5-methylthieno[2,3-d]pyrimidine-6-carboxylate (1.237 g, 5.10 mmol) and para-toluene sulfonic acid (0.097 g, 0.51 mmol) were heated at reflux in anhydrous 1,4-dioxane (20 mL) for 16 hours. The solution was cooled to ambient temperature and poured into a stirred solution of ammonium hydroxide/water (1:4). The precipitate was filtered off, washed with water, diethyl ether and dried. The product was purified by reverse phase preparative HPLC to yield grey solid (0.963 g, 47%).

情報源と証拠