1-[({4-methyl-6'-[4-(trifluoromethyl)-1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-imidazol-2-yl]-3,3'-bipyridin-6-yl}oxy)methyl]-cyclobutanecarboxylic acid → 1-[({4-methyl-6'-[5-(trifluoromethyl)-1H-imidazol-2-yl]-3,3'-bipyridin-6-yl}oxy)methyl]cyclobutanecarboxylic acid

Participants

Reaction Steps

In trifluoroacetic acid (3.3 mL) and water (0.33 mL) was dissolved 1-[({4-methyl-6′-[4-(trifluoromethyl)-1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-imidazol-2-yl]-3,3′-bipyridin-6-yl}oxy)methyl]cyclobutanecarboxylic acid (327 mg), and the solution was stirred at room temperature for 60 hours. The reaction mixture was concentrated under reduced pressure, subjected to azeotropic distillation with acetic acid, and isopropyl ether was added to the obtained residue. The precipitated solid was collected by filtration and dried under reduced pressure to obtain 1-[({4-methyl-6′-[5-(trifluoromethyl)-1H-imidazol-2-yl]-3,3′-bipyridin-6-yl}oxy)methyl]cyclobutanecarboxylic acid (217 mg).

Provenance & Evidence