反应详情

In 20 ml of dimethylformamide are dissolved 1.00 g of trans-3-amino-2-oxo-4-phenyl-2,3,4,5-tetrahydro-1H-1-benzazepine-1-acetamide as obtained in (ii) of Example 30 and 0.42 g of L-pyroglutamic acid, and the same reaction and treatment as in Example 3 is carried out to give A isomer (0.41 g) and B isomer (0.42 g) of trans-2-oxo-3-[5-oxo-2(S)-pyrrolidinecarboxamido]-4-phenyl-2,3,4,5-tetrahydro-1H-1-benzazepine-1-acetamide.