Collect. Czech. Chem. Commun. 1962, 27, 2765-2770
https://doi.org/10.1135/cccc19622765

On steroids. LXIX. Preparation of (20R)-20-hydroxy-3-oxo-5α-pregnan-18-oic acid (18→20) lactone from 5,6-dihydro-N,N,N',N'-tetramethylholarrhimine

V. Černý and A. Kasal

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