反応 #72236

反応方程式

1-hydroxybenzotriazole

cis(±)-2-(4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-ethoxypiperidin-1-yl)-5-(ethoxycarbonyl)-1,3-thiazole-4-carboxylic acid

2-amino-1-propanol

WSC hydrochloride

→

title compound

収率 65.0%

Ethyl 2-((3R*,4S*)-4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-ethoxypiperidin-1-yl)-4-[(2-hydroxy-1-methylethyl)carbamoyl]-1,3-thiazole-5-carboxylate

収率 65.0%

反応条件

実験手順

The same operation as in Example (247a) was performed using cis(±)-2-(4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-ethoxypiperidin-1-yl)-5-(ethoxycarbonyl)-1,3-thiazole-4-carboxylic acid obtained in Example (50a) (200 mg, 0.40 mmol), 2-amino-1-propanol (0.06 mL, 0.80 mmol), WSC hydrochloride (230 mg, 1.20 mmol) and 1-hydroxybenzotriazole (54 mg, 0.40 mmol), to obtain 144 mg of the title compound as a white solid (65%).

出典