反应详情

The same procedure as in Example 2-(6-2) was performed with N-4-cyanobenzoyl-β-phenyl-α,α-dimethyl-β-alanine (0.4 g, 1.24 mmol) and piperazineacetic acid benzyl ester (0.87 g, 3.72 mmol) to yield an oil of N-4-cyanobenzoyl-β-phenyl-α,α-dimethyl-β-alanyl-4-piperazineacetic acid benzyl ester (0.48 g, 70.0%).