反应详情

The compound of step 2 (400 mg, 1.088 mmol) was dissolved in methanol (3.5 ml), potassium carbonate (3 mg, 0.02 mmol) was added, and the mixture was stirred at room temperature for 6 h and evaporated to dryness to yield the title compound (300 mg).

1. customevaporated to dryness