3-Hydroxy-2,2-dimethylpropionic acid → HCID 178452761, compound

Participants

Reaction Steps

To a 25-mL, round-bottom flask was added 5-(trifluoromethyl)-2-{4-[3-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-1H-benzimidazol-7-amine (108 mg, 0.25 mmol, Example 58), 2,2-dimethyl-3-hydroxypropionic acid (47 mg, 0.4 mmol, Aldrich), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (76 mg, 0.4 mmol, Aldrich) and dichloromethane (5 mL). The reaction mixture was stirred at room temperature for 36 h, washed with satd aq. NaHCO3 solution (10 mL), dried over Na2SO4, and filtered. The filtrate was evaporated and the residue was purified by silica gel column chromatography, eluting with 50% EtOAc/hexane to give the title compound as a white amorphous solid. MS (ESI, pos. ion) m/z: 531 (M+1)

Provenance & Evidence