Methanol → cis(+/-)-2-(4-{[(4-Chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-ethoxypiperidin-1-yl)-5-ethyl-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-ethyl-1,3-oxazole-4-carboxylate obtained in Example (115c) (0.24 g, 0.48 mmol), 2 N lithium hydroxide (3 mL, 6 mmol), methanol (4 mL) and THF (6 mL), to obtain 160 mg of the title compound as a colorless solid (75%).

Provenance & Evidence