Methanol → HCID 86684497, compound

Participants

Reaction Steps

A 100-mL single-neck round-bottomed flask equipped with a magnetic stirrer was charged with 263c (100 mg, 0.19 mmol), NaBH4 (30 mg, 0.78 mmol), and methanol (20 mL). The mixture was stirred at room temperature for 0.5 h. It was then diluted with water (30 mL) and concentrated under reduced pressure. The residue was extracted with dichloromethane (2×30 mL) and the combined dichloromethane extract was dried and concentrated under reduced pressure. The residue was purified with reverse-phase prep-HPLC to afford 263 as a white solid (67 mg, 68%). MS-ESI: [M+H]+ 517.3. 1H NMR (500 MHz, DMSO-d6) δ 9.93 (s, 1H), 8.81 (s, 1H), 8.67 (s, 1H), 8.55 (d, J=4.5 Hz, 1H), 8.49 (d, J=5.5 Hz, 1H), 7.56 (dd, J=1.0, 6.0 Hz, 1H), 7.43 (d, J=5.0 Hz, 1H), 4.83 (t, J=5.5 Hz, 1H), 4.62-4.58 (m, 1H), 4.39-4.36 (m, 1H), 4.25-4.19 (m, 2H), 4.06-4.04 (m, 1H), 3.92-3.90 (m, 1H), 3.81 (s, 3H), 2.64-2.54 (m, 2H), 2.43-2.41 (m 2H), 1.78-1.76 (m, 2H), 1.69-1.67 (m, 2H).

Provenance & Evidence