Water → HCID 178422978、化合物

関与物質

反応条件

反応手順

To a mixture of 2-amino-4-methylbenzamide (804 mg, 5.36 mmol) and sodium 2,2-difluoro-2-(5-fluoropyridin-2-yl)acetate from Example 2 Step B (1.25 g, 5.89 mmol) was added trimethylsilyl polyphosphate (ca. 10 mL) and the mixture was heated at 130° C. in a sand bath overnight. The mixture was allowed to cool to rt, and then water (75 mL) and EtOAc (75 mL) were added and the mixture was stirred at rt for 1 h. The organic layer was separated, washed with brine, dried over Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by silica gel chromatography eluting with 0-60% EtOAc/hexanes to afford 2-(difluoro(5-fluoropyridin-2-yl)methyl)-7-methylquinazolin-4-ol (1.09 g, 66%). LCMS (ESI) m/z 306 (M+H)+.

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