作者: Yusuke Murata , Masaki Takahashi , Fumitoshi Yagishita , Masami Sakamoto , Tetsuya Sengoku
DOI: 10.1021/OL403014U
关键词: Enantiopure drug 、 α methylene γ butyrolactone 、 Catalysis 、 2-oxindole 、 Isatin 、 Medicinal chemistry 、 Amide 、 Stereochemistry 、 Enantioselective synthesis 、 Chemistry 、 Indium
摘要: A remarkably effective method allowing an extremely high enantioselective synthesis of the spiro-fused 2-oxindole/α-methylene-γ-butyrolactones is described. The key strategy lies in use indium-catalyzed asymmetric amide allylation N-methyl isatin with functionalized allylstannanes, which can lead to antineoplastic spirocyclic lactones almost enantiopure forms.