Collect. Czech. Chem. Commun. 1968, 33, 2049-2058
https://doi.org/10.1135/cccc19682049

On steroids. CXII. 5,7-Cyclosteroids. I. The Simmons-Smith methylenation of Δ5-B-norsteroids

J. Joska, J. Fajkoš and F. Šorm

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