Asymmetric Synthesis of Indolizidines 167B and 223AB
摘要:
The total synthesis of (+)-indolizidine 167B (1) and the formal synthesis of (-)indolizidine 223AB (2) starting with L- and D-norvaline-derived cis-2-hydroxymethyl-6-propylpiperidines (3 and ent-3), respectively, are described.
Application of Electro-Oxidative a-Cyanation of Aza-Rings to the Synthesis of Gephyrotoxin 223AB
作者:Teng-Kuei Yang、Shun-Tsai Yeh、Yen-Yuan Lay
DOI:10.3987/com-94-6759
日期:——
Six and five-membered cyclic alpha-cyanoamines have been prepared efficiently from N-benzylpiperidine and N-benzylpyrrolidine. These alpha-cyanoamines were successfully used in the synthesis of gephyrotoxin 223AB.