反应详情

The procedure described in Example 36B was repeated using DL-1-benzhydrylamino-1-(4-acetamidophenyl)-methanephosphonous acid instead of DL-1-benzhydrylamino-2-methylpropanephosphonous acid to give DL-1-amino-1-(4-acetamidophenyl)-methanephosphonous acid. This was treated with dilute hydrobromic acid at reflux followed by propylene oxide to give DL-1-amino-1-(4-aminophenyl)-methanephosphonous acid.