scheme44
![Recent advances in organocatalytic cascade reactions for enantioselective synthesis of chiral spirolactone skeletons](https://image.oaes.cc/81dabbbc-923b-43d2-a26d-fe5689f6999d/5406.scheme.44.jpg)
Scheme 44. Spirolactonization reaction of 3-hydroxyoxindoles 69 with MBH carbonates 84. This figure is used with permission from the Royal Society of Chemistry[112].
Scheme 44. Spirolactonization reaction of 3-hydroxyoxindoles 69 with MBH carbonates 84. This figure is used with permission from the Royal Society of Chemistry[112].
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