反应详情

In a similar manner to Step 1 of Example 233, 4-hydroxy-7-[1-(tert-butoxycarbonyl)-5-(piperidinomethyl)indol-2-yl]isoindolinone (0.0324 g, 0.0702 mmol) was dissolved in acetonitrile (0.650 mL), and the solution was treated with triethylamine (0.0590 mL, 0.421 mmol) and 3,4-dihydro-4-methyl-1,4-benzoxazine-7-sulfonyl chloride (0.0520 g, 0.211 mmol) to obtain 4-(3,4-dihydro-4-methyl-1,4-benzoxazin-7-ylsulfonyloxy)-7-[1-(tert-butoxycarbonyl)-5-(piperidinomethyl)indol-2-yl]isoindolinone (0.0274 g, yield 58%).