1-Propanesulfonyl chloride → HCID 71114478, compound

Participants

Reaction Steps

Intermediate 25 (80 mg, 0.24 mmol) was dissolved in DCM (10 ml) and added TEA (35 mg, 0.35 mmol). This mixture was stirred at rt for 15 mins Reaction mixture cooled to 0° C. and added propane-1-sulphonylchloride (33 mg, 0.23 mmol). Reaction mixture stirred at rt for 2 h. Work up (DCM/H2O) afforded the crude product. Crude was purified by column chromatography on 60-120 mesh silica gel using a gradient mixture of EtOAC and Petether (70:30) as eluent to afford the titled compound (8 mg) as a white solid. M.P.: 222-225° C. 1H-NMR NMR (δ ppm, DMSO-d6, 400 MHz): 8.09 (d, J 1.3, 1H), 7.82-7.72 (m, 3H), 7.71-7.61 (m, 4H), 3.67-3.58 (m, 2H), 3.30-3.22 (m, 2H), 3.09-2.99 (m, 2H), 2.25-2.16 (m, 2H), 1.92-1.79 (m, 2H), 1.69 (hextet, J 7.6, 2H), 0.98 (t, J 7.4, 3H).

Provenance & Evidence