反应详情

A solution of the product from step (a) (1.98 g) in TFA (4 ml) and dichloromethane (2 ml) was stirred for 2 h. The solvent was removed in vacuo and the residue azeotroped with toluene. Aq. potassium carbonate was added and the mixture was extracted with dichloromethane. The organic extracts were dried (MgSO4) and evaporated in vacuo to give the sub-title compound (1.79 g).

1. customThe solvent was removed in vacuo
2. customthe residue azeotroped with toluene
3. additionAq. potassium carbonate was added
4. extractionthe mixture was extracted with dichloromethane
5. dry with materialThe organic extracts were dried (MgSO4)
6. customevaporated in vacuo