Pivaloyl chloride → 5-Chloro-N-(2,2-dimethyl-propionyl)-2-{2-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-benzenesulfonamide

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

To a solution of 5-chloro-2-{2-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-benzenesulfonamide (0.050 g, 0.11 mmol) in acetonitrile (1.0 mL) was added 2,2-dimethyl-propionyl chloride (0.050 g, 0.47 mmol) and 1,8-diazobicyclo[5.4.0]undec-7-ene (0.25 mL, 1.64 mmol). The resulting reaction mixture was heated to 50° C. for 2 hours, concentrated in vacuo and purified by silica gel chromatography to give the title compound (0.030 g, LRMS: 554.4).

Herkunft & Nachweise