1-Methylpiperazine → Ethyl cis(+/-)-2-(4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-methoxypiperidin-1-yl)-4-[(4-methylpiperazin-1-yl)carbonyl]-1,3-thiazole-5-carboxylate

Participants

Reaction Steps

The same operation as in Example (1g) was performed using cis(±)-2-(4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-methoxypiperidin-1-yl)-5-(ethoxycarbonyl)-1,3-thiazole-4-carboxylic acid obtained by the method described in Example (50a) (65 mg, 0.13 mmol), 4-methyl-piperazine (35 μL, 0.27 mmol), WSC hydrochloride (80 mg, 0.42 mmol) and HOBT (18 mg, 0.13 mmol), to obtain 52.1 mg of the title compound as a white solid (69%).

Provenance & Evidence