反应详情

The product of Example 1A (1.50 g, 7.3 mmol) and methoxyamine hydrochloride (0.69 g, 8 mmol) were dissolved in 7 mL of pyridine. The reaction mixture was stirred at ambient temperature for 16 hours, and the pyridine removed under reduced pressure. The residue was taken in diethyl ether and sequentially washed with water and 1N aqueous hydrochloric acid. The isolated organic layer was then dried with magnesium sulfate, filtered and the solvent removed under reduced pressure to give 1.53 g of the title compound, which was used without further purification. MS (DCI) m/e 234 (M+H)+

1. customthe pyridine removed under reduced pressure
2. washsequentially washed with water and 1N aqueous hydrochloric acid
3. dry with materialThe isolated organic layer was then dried with magnesium sulfate
4. filtrationfiltered
5. customthe solvent removed under reduced pressure