反应详情

The compound obtained in Example 2-1 step (v) (2 g), potassium carbonate (3.7 g) and 1,2-dibromoethane (0.6 ml) were added to dimethylformamide (20 ml), and the same manner to Example 2-13 step (i) was conducted to give the titled compound as a cream colored solid. Yield: 1.2 g (62%).