scheme37

Scheme 37. Spirolactonization reaction of 3-hydroxyoxindoles 69 and olefinic azlactones 70. This figure is used with permission from the American Chemical Society[95].
Scheme 37. Spirolactonization reaction of 3-hydroxyoxindoles 69 and olefinic azlactones 70. This figure is used with permission from the American Chemical Society[95].
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