Journal of Organic Chemistry p. 3769 - 3774 (1994)
Update date:2022-09-26
Topics:
Berrien, J. -F.
Royer, J.
Husson, H. -P.
Enantiomerically pure (S)-(-)-pipecolic acid (5) was synthesized in four steps and 47percent overall yield starting from 2-cyano-6-phenyloxazolopiperidine (1).A general strategy is described for preparing 2-alkylated and 6-alkylated pipecolic acid 7a-c and 11a-c using diastereoselective procedures.
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