Tetrahedron Letters p. 6323 - 6326 (1989)
Update date:2022-08-04
Topics:
Zhu, Jieping
Quirion, Jean-Charles
Husson, Henri-Philippe
A novel spiropiperidine system i.e. an aza structural analog of histrionicotoxin has been constructed from 2-cyano-6-phenyloxazolopiperidine synthon 3.The suitable quaternary carbon was created by alkylation at the position α to the nitrile followed by transformation of the nitrile group into a primary amine.Final aminoreductive cyclisation gave the spiro system.
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