反应详情

The solid residue obtained in step A was dissolved in 0.78 ml of trifluoroacetic acid and stirred for 1 hour at room temperature. The solvent was evaporated and the solid residue was triturated with an isopropyl ether/hexane mixture. The solid was filtered off affording 0.01 g (yield 15%) of the expected product.

1. customThe solvent was evaporated
2. customthe solid residue was triturated with an isopropyl ether/hexane mixture
3. filtrationThe solid was filtered off