反应详情

A mixture of the product from example 120 step (ii) (0.1 g), N-methyl-L-proline (0.044 g), N,N-diisopropylethylamine (0.17 ml), 1-hydroxybenzotriazole (0.043 g), 2-(1H-benzotriazole-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate (0.103 g) in N,N-dimethylformamide (3 ml) were stirred at room temperature overnight then partitioned between ethyl acetate and water. The organic layer was washed with water, dried and evaporated under reduced pressure. Purification was by chromatography eluting with 4% methanol/dichloromethane. Yield 0.038 g.

1. customthen partitioned between ethyl acetate and water
2. washThe organic layer was washed with water
3. customdried
4. customevaporated under reduced pressure
5. customPurification
6. washeluting with 4% methanol/dichloromethane