反应详情

A solution of the product from step (i) (1.5 g) and lithium hydroxide hydrate (0.84 g) in a mixture of (1:1)water and tetrahydrofuran (40 ml) was stirred at room temperature for 2 h. The tetrahydrofuran was removed under reduced pressure and the residue partitioned between diethyl ether and water. The aqueous layer was acidified with 2M hydrochloric acid then extracted with ethyl acetate. The organic layer was dried and evaporated under reduced pressure. Yield 1.3 g.

1. customThe tetrahydrofuran was removed under reduced pressure
2. customthe residue partitioned between diethyl ether and water
3. extractionthen extracted with ethyl acetate
4. customThe organic layer was dried
5. customevaporated under reduced pressure