Collect. Czech. Chem. Commun.
1969, 34, 3632-3637
https://doi.org/10.1135/cccc19693632
Steroid derivatives. LXV. A practical preparation of 3-ketosteroids of 5α-androstane and 5α-pregnane series
J. Pospíšek, Z. Veselý and J. Trojánek
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