
Journal of Organic Chemistry p. 4233 - 4235 (1990)
Update date:2022-07-29
Topics:
Wuensch, Thomas
Meyers, A. I.
Chiral tricyclic lactam (5) was sequentionally metalated (LDA or LDA/zirconocene halides) and alkylated to give quaternary alkylation products (8) in 6-54:1 diastereomeric ratio.Reduction and hydrolysis furnish the title compound in three steps with >99 p
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