Synthetic entry to the hexacyclic Aspidosperma alkaloids. Total synthesis of (±)-4-hydroxyaspidofractinine
- 1 January 1973
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 9,p. 301-302
- https://doi.org/10.1039/c39730000301
Abstract
The pentacyclic intermediate (V) underwent a new type of Michael cyclization on the vinylogous amide system with acrylonitrile and methyl vinyl sulphone to give regio- and stereo-specific bridge formation producing the hexacyclic compounds which constitute the aspidofractinine (I) skeleton.Keywords
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