反应详情

A mixture of 1-[(R)-isopropoxycarbonylamino-phenyl-acetyl]-pyrrolidine-2-(S)-carboxylic acid methyl ester (0.95 g) and 0.13 g of LiOH in 20 mL of methanol and 5 mL of water was stirred for 16 h at ambient temperature. KHSO4 was added, the volatiles were pumped off followed by addition of water, extraction with ethyl acetate and concentration of the organic layer to give 0.76 g (83%) of the title compound as a white solid. (+)-APCI-MS: 335 (MH+).