Aza-steroids. II. Enamine Reaction of Androstanones. Synthesis of 17-Acetoxy-5β-androstano [4,3-c] quinolizidin-2'-one
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As a preliminary for the synthesis of 10-aza-steroids, enamine reaction of 3-oxo-steroids was examined. The reaction of 3-oxo-steroids with ethyl 2-piperidinoacetate (III) through intramolecular cyclization via their enamine, 17-acetoxy-5β-androstano-[4,3-c] quinolizidin-2'-one (I) and its related compound were synthesized and their conformation and configuration were examined.
- 公益社団法人日本薬学会の論文
- 1970-11-25
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