scheme18
![Recent advances in organocatalytic cascade reactions for enantioselective synthesis of chiral spirolactone skeletons](https://image.oaes.cc/81dabbbc-923b-43d2-a26d-fe5689f6999d/5406.scheme.18.jpg)
Scheme 18. Aminocatalytic cascade reaction of enals 37 with benzofuranones 36. This figure is used with permission from Wiley-VCH Verlag[51].
Scheme 18. Aminocatalytic cascade reaction of enals 37 with benzofuranones 36. This figure is used with permission from Wiley-VCH Verlag[51].
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