Dimethylformamide → HCID 9923824, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 2-ethylbutyric acid (0.125 mL, 1.0 mmol) in DMF (0.5 mL) was added DPPA (0.25 mL, 1.2 mmol) and TEA (0.25 mL, 1.8 mmol) and the reaction heated at 70° C. After 18 hrs, 3-Amino-6-chloro-2-hydroxy-benzenesulfonamide (1.0 mmol) was added and the reaction heated at 70° C. After 18 hrs, the reaction mixture was quenched with water and extracted with ethyl acetate. The organic layers were dried over anhydrous magnesium sulfate, and concentraed under reduced pressure. The crude residue was purified via HPLC to give 51 mg (15%) of 6-Chloro-3-[3-(1-ethyl-propyl)-ureido]-2-hydroxy-benzenesulfonamide. LC-MS (m/z) 336 (M+).

Provenance & Evidence