反应详情

In a similar manner to Step 1 of Example 289, 4-hydroxy-5-methoxy-7-iodoisoindolinone (250 mg, 0.819 mmol) was dissolved in dichloromethane (5 mL), and the solution was treated with triethylamine (0.685 mL, 4.91 mmol) and methanesulfonyl chloride (0.190 mL, 2.45 mmol). The mixture was added with water and hexane. The precipitated solid was collected by filtration and washed with water, followed by drying under reduced pressure to obtain 4-methanesulfonyloxy-5-methoxy-7-iodoisoindolinone (284 mg, yield 91%).

1. filtrationThe precipitated solid was collected by filtration
2. washwashed with water
3. customby drying under reduced pressure