A New Method for Introducing Some Active Methylene or Methine Groups to the 3-Position of Pyrrolidine or Piperidine Skeleton, and Its Application to Preparation of a Key Intermediate for (±)-Eburnamonine Synthesis
A new method for introducing a bis(methoxycarbonyl)methyl or 2-oxopropyl group to the 3-position of pyrrolidine or piperidine skeleton has been exploited, and this method could be used in the synthesis of a key intermediate for the (±)-eburnamonine synthesis.