Sodium Carbonate → Ethyl trans(+/-)-2-(4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-(cyclopropylamino)piperidin-1-yl)-1,3-benzothiazole-7-carboxylate

Participants

Reaction Steps

The same operation as in Example (196c) was performed using tert-butyl trans(±)-4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-(cyclopropylamino)piperidine-1-carboxylate obtained in Example (213a) (32.0 mg, 0.078 mmol), 4 N hydrochloric acid-1,4-dioxane (2 mL), ethyl 2-bromo-1,3-benzothiazole-7-carboxylate obtained in Example (1f) (24 mg, 0.085 mmol) and sodium carbonate (82 mg, 0.777 mmol), to obtain 29 mg of the title compound (72%) as a colorless solid.

Provenance & Evidence