Acetyl chloride → HCID 121410336, compound

Participants

Reaction Conditions

Reaction Steps

tert-Butyl 4-((4-bromophenethyl)(4-sulfamoylbenzyl)amino)piperidine-1-carboxylate (see Example 15, step 1) was dissolved in anhydrous THF (5 mL/mmol) under atmosphere of argon and the solution was cooled to 0° C. Sodium hydride (2 equiv) was then added in one portion and after 10 minutes acetyl chloride (2 equiv) was added dropwise by syringe over 10 minutes. The cooling batch was removed and the reaction mixture was allowed to stir for two days after which time the starting material could no longer be detected. The reaction mixture was then diluted with EtOAc (12 mL/mmol of starting material), washed with 1 M NaOH (2×), water (2×) and brine (2×) and dried over anhydrous MgSO4. After filtration of the drying agent the solvent was stripped off and the crude product was purified by column chromatography (yield 65%).

Provenance & Evidence