scheme60
![Recent advances in organocatalytic cascade reactions for enantioselective synthesis of chiral spirolactone skeletons](https://image.oaes.cc/81dabbbc-923b-43d2-a26d-fe5689f6999d/5406.scheme.60.jpg)
Scheme 60. Spirolactonization reaction of enals 121 and isatins 106. This figure is used with permission from Wiley-VCH Verlag[137].
Scheme 60. Spirolactonization reaction of enals 121 and isatins 106. This figure is used with permission from Wiley-VCH Verlag[137].
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