Methanol → cis(+/-)-2-(4-{[(4-Chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-ethoxypiperidin-1-yl)-5-methyl-1,3-oxazole-4-carboxylic acid

Participants

Reaction Steps

The same operation as in Example (91d) was performed using butyl cis(±)-2-(4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-ethoxypiperidin-1-yl)-5-methyl-1,3-oxazole-4-carboxylate obtained in Example (112i) (0.2 g, 0.42 mmol), 2 N lithium hydroxide (3 mL, 6 mmol), methanol (2 mL) and THF (3 mL), to obtain 90 mg of the title compound as a colorless solid (51%).

Provenance & Evidence