反应详情

Ethyl trans(±)-2-[(5-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-1,3-dihydro-2H-isoindol-2-yl)carbonyl]cyclopropanecarboxylate obtained in Example (93a) (0.11 g, 0.26 mmol) was dissolved in methanol (5 mL) and dichloromethane (2 mL). The solution was subjected to the same operation as in Example (91d) using a 2 N aqueous lithium hydroxide solution (2 mL, 4 mmol), to obtain 71 mg of the title compound as a light brown solid (69%).