反应详情

A solution of the product from Example 10B (62 mg, 0.331 mmol), and the product of Example 63B (120 mg, 0.331 mmol) in acetic acid (1 mL) was stirred in an oil bath preheated to 130° C. for 20 minutes. The mixture was then cooled to room temperature, the acetic acid removed under vacuum leaving a brown oil as the title compound (0.15 g, 92%). The compound was used without purification in the next step.

1. customthe acetic acid removed under vacuum