Water → HCID 67470499、化合物

関与物質

反応条件

反応手順

7-Iodo-1H-pyrazolo[4,3-b]pyridine (50 mg, 0.204 mmol), (R)-4-(chloromethyl)-2,2-dimethyl-1,3-dioxolane (30.7 mg, 0.204 mmol), and cesium carbonate (133 mg, 0.408 mmol) in DMF (1.0 mL) was heated in a microwave at 80° C. for 15 minutes. Additional (R)-4-(chloromethyl)-2,2-dimethyl-1,3-dioxolane (61.4 mg, 0.204 mmol) and cesium carbonate (67 mg) was added the reaction was heated in microwave at 80° C. for 2 hour. Additional (R)-4-(chloromethyl)-2,2-dimethyl-1,3-dioxolane (30.7 mg, 0.204 mmol), tetrabutylammonium iodide (301 mg, 0.816 mmol) and cesium carbonate (133 mg, 0.408 mmol) was added and the reaction was heated in microwave at 80° C. for 60 minutes, then the reaction was transferred to an oil bath and heating was continued overnight at 75° C. The reaction was cooled and poured into water (10 mL) and extracted with ethyl acetate (5 mL). The organic layer were dried over sodium sulfate, filtered, and concentrated to give (S)-1-((2,2-dimethyl-1,3-dioxolan-4-yl)methyl)-7-iodo-1H-pyrazolo[4,3-b]pyridine MS [M+H] found 360.2.

情報源と証拠