反应详情

To a solution of 2.3 g. (7.5 mmole) of the compound of Example 15 in 30 ml. pyridine there is added dropwise 1.0 ml. of acetic anhydride. The reaction mixture is stirred for 16 hours at ambient temperature, poured into water, extracted with ethyl acetate, washed neutral, dried and evaporated. There is obtained 1.8 g. of the title compound (67% of theory) in the form of an oil.

1. extractionextracted with ethyl acetate
2. washwashed neutral
3. customdried
4. customevaporated
5. customThere is obtained 1.8 g