Hydrochloric Acid → 3-{3,5-Dimethyl-4-[6-(5-o-tolyl-[1,3,4]oxadiazol-2-yl)-1H-benzoimidazol-2-yl]-phenyl}-2,2-dimethyl-propionic acid

Participants

Reaction Steps

Dissolve 3-{3,5-dimethyl-4-[6-(5-o-tolyl-[1,3,4]oxadiazol-2-yl)-1H-benzoimidazol-2-yl]-phenyl}-2,2-dimethyl-propionic acid methyl ester (286 mg, 0.578 mmol) in THF (2.9 mL)/MeOH (2.9 mL). Add 1 N NaOH (2.9 mL) and stir for 4 h. Add NaOH (102 mg, 2.55 mmol) in water (1 mL). Upon disappearance of the ester by LC/MS, concentrate the reaction. Acidify to pH 1.5 by addition of 1 N HCl (5.4 mL). Collect the solid by filtration and dry at 40° C. in a vacuum oven. Triturate the solid with DCM to afford the title compound as a white solid: (M+H)+ 481.0.

Provenance & Evidence