反应详情

A solution of the product of Example 32E (7.3 g) in dichloromethane (50 mL) and trifluoroacetic acid (50 mL) and the mixture was stirred at 25° C. for 3.5 hrs. The solvents were evaporated and the crude acid was used directly without purification.

1. customThe solvents were evaporated
2. customthe crude acid was used directly without purification