反应详情

The product from Example 114B (0.20 g, 0.24 mmol) was dissolved in dichloromethane (3 mL) and treated with trifluoroacetic acid (2 mL) at ambient temperature for 2 hours. The solution was concentrated, taken up in 25% isopropanol in chloroform, washed with sodium bicarbonate solution, dried over sodium sulfate, filtered and concentrated to give 0.16 g (91%) of the title compound.

1. concentrationThe solution was concentrated
2. washwashed with sodium bicarbonate solution
3. dry with materialdried over sodium sulfate
4. filtrationfiltered
5. concentrationconcentrated