摘要：

A secondary-amine-catalyzed asymmetric Michael addition of 3-substituted N-(tert-butoxycarbonyl)oxindoles to maleimides with activation by a Bronsted base gives the corresponding products in high yields (86-98%), excellent diastereomeric ratios (dr > 99:1), and high enantiomeric excesses (86-91% ee).

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