Morpholine → HCID 21099468, compound

Participants

Reaction Steps

3-({6-[(E)-2-(2,4-Difluorophenyl)vinyl]pyridin-3-yl}sulfonyl)benzaldehyde (Step 1, 95 mg, 0.25 mmol) was suspended in methanol (1 mL) and acetic acid (70 μL). Morpholine (28 μL, 0.34 mmol) was added and the reaction stirred at room temperature under nitrogen for 30 minutes. Sodium cyanoborohydride (15 mg, 0.25 mmol) was added and stirring continued for 2 days. 5N sodium hydroxide was added and the products extracted into dichloromethane, washed with brine, dried over MgSO4 and concentrated in vacuo. Purification by flash column chromatography (90% ethyl acetate/isohexane) gave the title compound as a yellow foam which was treated with ethereal HCl to give the hydrochloride salt (8 mg, 7%). δH (500 MHz, d6 DMSO): 11.24 (1H, s), 9.11 (1H, d, J=2.1 Hz), 8.38 (1H, dd, J=2.1, 8.2 Hz), 8.33 (1H, s), 8.08 (1H, d, J=7.8 Hz), 7.93 (2H, q, J=8.0 Hz), 7.87 (1H, d, J=16.1 Hz), 7.76–7.70 (2H, m), 7.46 (1H, d, J=16.1 Hz), 7.37–7.31 (1H, m), 7.18 (1H, td, J=2.1, 8.4 Hz), 4.43 (2H, s), 3.91 (2H, d, J=11.8 Hz), 3.74 (2H, t, J=11.8 Hz), 3.20 (2H, d, J=11.6 Hz), 3.12–3.06 (2H, m); m/z (ES+) 457 [MH+].

Provenance & Evidence