1-Hydroxybenzotriazole → Methyl cis(+/-)-3-(4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-propoxypiperidin-1-yl)benzoate

Participants

Reaction Steps

The same operation as in Example (1g) was performed using methyl cis(±)-3-(4-amino-3-propoxypiperidin-1-yl)benzoate obtained in Example (178b) (42.4 mg, 0.14 mmol), 4-chloro-5-ethyl-1H-imidazole-2-carboxylic acid obtained by the method described in Example (1d) (24.1 mg, 0.14 mmol), WSC hydrochloride (79.4 mg, 0.41 mmol) and HOBt (18.7 mg, 0.14 mmol), to obtain 35.5 mg of the title compound as a yellow oily substance (67%).

Provenance & Evidence