Hydrochloric Acid → HCID 59497267, compound

Participants

Reaction Steps

3-(3-Naphthalen-1-ylmethyl-2-oxo-2,3-dihydro-benzimidazol-1-yl)-propionic acid (80 mg, 0.23 mmol) is dissolved in dry THF (3.0 mL) and 1,1′-carbonyl diimidazole (84 mg, 0.52 mmol) is added into it. The mixture is stirred for 30 min at room temperature and then it is heated at 55° C. for 1 hr. After the mixture is cooled down to room temperature, benzenesulfonamide (73 mg, 0.46 mmol) is added and after 10 min, 1,8-diazabicyclo[5,4,0]undec-7-ene (0.07 mL, 0.46 mmol) is added. The mixture is again stirred for 8 heat room temperature. 1.0 M HCl aqueous solution (3 mL) is added followed by water (30 mL). The mixture is extracted with EtOAc (3×50 mL) and the organic layers are combined, dried and concentrated to give crude product. Purification by preparative TLC using 55% EtOAc in Hexanes affords 66 mg (59%) of N-[3-(3-Naphthalen-1-ylmethyl-2-oxo-2,3-dihydro-benzimidazol-1-yl)-propionyl]-benzenesulfonamide. LCMS (ESMS): m/z 486.05 (M+H+)

Provenance & Evidence