反应详情

温度

75 °C

A mixture of 5-tert-butyl 2-ethyl 6,7-dihydrothieno[3,2-c]pyridine-2,5(4H)-dicarboxylate (0.056 g, 0.18 mmol; prepared as described in J. Med. Chem. 2006, 49(15): 4623), hydroxylamine hydrochloride (0.037 mg, 0.54 mmol) and potassium hydroxide (0.1 mg, 1.8 mmol) in methanol (2 mL) was heated at 75° C. for 1 hour. Upon cooling to room temperature the reaction was quenched by the addition of acetic acid (100 μL, 1.8 mmol) and the solvent was evaporated to dryness. The residue was dissolved in DMSO (1 mL) and purified using a Gilson prep to afford a white solid (26.9 mg, 50%). LCMS (FA) ES+ 299; 1H NMR (400 MHz, MeOD) δ 7.27 (s, 1H), 4.46 (s, 2H), 3.71 (t, J=5.4 Hz, 2H), 2.84 (t, J=5.7 Hz, 2H), 1.48 (s, 9H).

1. temperatureUpon cooling to room temperature the reaction
2. customthe solvent was evaporated to dryness
3. dissolutionThe residue was dissolved in DMSO (1 mL)
4. custompurified