Synthesis of bridged steroids with a bic
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Marian KocΓ³r; Beata Bersz
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Article
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1987
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Elsevier Science
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French
β 506 KB
A synthesis of new groups of bicyclic steroids with a bicycle [3.3.1.] nonane ring A system is described. The insertion of an additional ring is performed by means of the Bichael addition of ethyl acetoacetate to 17~ -propionoxyandrosta -1.4.6-triene-3-one (1). followed by an aldol condensation of i