4-Fluorobenzenesulfonyl chloride → HCID 178473725, compound

Participants

Reaction Steps

To a stirred solution of Compound B (150 mg, 0.6 mmol) in methylene chloride with saturated NaHCO3 solution was added 4-fluorobenzenesulfonyl chloride (300 mg, 1.55 mmol). The mixture was stirred at room temperature for 18 h and diluted with methanol. 10 N NaOH was added and the mixture was stirred for 2 h. Concentrated NH4OH was added and the mixture was stirred for 18 h and concentrated in vacuo. The residue was partitioned between ethyl acetate and saturated NaHCO3. The organic layer was separated, dried over MgSO4, and concentrated in vacuo. The residue was purified by chromatography (1:4, ethyl acetate and hexanes) to give Compound C as an oil (120 mg, 50%).

Provenance & Evidence