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Synthesis of the spirosuccinimide moiety of Asperparaline A
S Tanimori1, K Fukubayashi, M Kirihata
1Department of Applied Biochemistry, College of Agriculture, Osaka Prefecture University, Sakai, Japan. tanimori@biochem.osakafu-u.ac.jp
Bioscience, Biotechnology, and Biochemistry
|September 19, 2000
Abstract:
2,6,6-Trimethyl-2-azaspiro[4.4]nonane-1,3-dione (9), a spirosuccinimide moiety of asperparaline A (1), was synthesized by starting from 2,2-dimethylcyclopentanone (4) via trinitrile 6 in five steps in a moderate yield. This conversion establishes a model study for synthesis of the spirosuccinimide moiety of asperparaline A (1).