反应详情

Using an analogous procedure to that described for the preparation of the starting material in Example 9, 7-benzyloxy-4-chloro-6-methoxyquinazoline (184 mg, 0.61 mmol), (prepared, for example, as described in WO 97/22596, Example 1, but the free base was generated prior to use), was reacted with 4-chloro-2,6-difluoroaniline (200 mg, 1.22 mmol) in the presence of sodium hydride (60%, 87 mg, 1.4 mmol) in DMF (8 ml) to give 7-benzyloxy-4-(4-chloro-2,6-difluoroanilino)-6-methoxyquinazoline (212 mg, 74%).