Conclusions
A synthesis of 6α-methyl-16α.17α-cyclobutanopregn-4-ene-3,20-dione was carried out by opening the 5,6α-oxide ring with a Grignard reagent, with preliminary protection of the 20-keto group.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 9, pp. 2151–2154, September, 1982.
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Kamernitskii, A.V., Ignatov, V.N. & Levina, I.S. Transformed steroids 129. Synthesis of 6α-methyl-16α,17α-cyclobutanoprogesterone. Russ Chem Bull 31, 1901–1904 (1982). https://doi.org/10.1007/BF00952398
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DOI: https://doi.org/10.1007/BF00952398