Dimethylformamide → HCID 86691435, 화합물

To a cooled solution of 4-(4-benzyloxy-6-bromoquinazolin-2-yl)-2,3,4,5-tetrahydro-1,4-benzothiazepine (500 mg, 1.048 mmol) in anhydrous tetrahydrofuran (10 mL) was added anhydrous N,N-dimethylformamide (150 μL, 1.94 mmol) at −78° C. After being stirred at −78° C. for 30 minutes, the mixture was warmed to room temperature, diluted with water (10 mL) and extracted with ethyl acetate (20 mL×3). The combined organic layers were washed with a saturated aqueous solution of ammonium chloride (40 mL) and brine (40 mL), dried over anhydrous sodium sulfate, and concentrated in vacuo to afford 410 mg of the crude product as a yellow solid. MS obsd. (ESI+) [(M+H)+] 428.