Water → 4-[6-Bromo-2-(oxetan-3-yloxy)-1,3-benzodiazol-1-yl]pyrimidin-2-amine

関与物質

反応手順

To a solution of oxetan-3-ol (0.04 ml, 0.61 mmol) in DMF (5 ml) at 0° C. was added cesium carbonate (499.75 mg, 1.53 mmol) followed by 4-[6-bromo-2-(trichloromethyl)-1,3-benzodiazol-1-yl]pyrimidin-2-amine (250 mg, 0.61 mmol). The reaction was stirred at RT overnight, then re-charged with oxetan-3-ol (3 eq) and stirred for a total of 5 days at RT. Water was added (15 ml) to the combined reaction mixtures and the product extracted into DCM (2×30 ml). The combined organic extracts were washed with water and brine (10 ml each), dried (Na2SO4), filtered and concentrated in vacuo to give the title compound; 1H NMR (500 MHz, DMSO) delta 4.83-4.70 (2H, m), 5.03-4.89 (2H, m), 5.85-5.75 (1H, m), 7.19-7.05 (3H, m), 7.51-7.34 (2H, m), 8.40 (1H, d, J=5.5 Hz), 8.45 (1H, d, J=1.7 Hz); LC-MS: m/z=+362/364 (M+H)+.

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