Trifluoroacetic acid → HCID 89761996, compound

Participants

Reaction Steps

To a solution of 2-(2-(7-(N-(4-methoxybenzyl)-N-(thiazol-2-yl)sulfamoyl)-2H-benzo[b][1,4]oxazin-4(3H)-yl)phenoxy)acetamide (300 mg, 0.53 mmol) in DCM (30 mL) was added TFA (0.5 mL) at 0° C. The reaction mixture was stirred at ambient temperature for 5 h. After completion, the reaction mixture was quenched with saturated aqueous sodium bicarbonate solution (50 mL) and extracted with ethyl acetate (2×50 mL). The organic layer was dried over sodium sulfate and concentrated under reduced pressure to obtain the crude material which was purified by prep HPLC purification to obtain 2-(2-(7-(N-(thiazol-2-yl)sulfamoyl)-2H-benzo[b][1,4]oxazin-4(3H)-yl)phenoxy)acetamide (55 mg, 13.7%) as an off white solid.

Provenance & Evidence