[Acylhydrazones of 20-keto steroids and their transformations: I. Synthesis and properties of 1'-acyl-substituted 3'-methylandrosteno[16,17-d]pyrazolines].
A V Kamernitskiĭ, E I Chernoburova, V V Chertkova, I V Zavarzin, V N Iarovenko, M M Kraiushkin
文献索引：Bioorg. Khim. 33(3) , 337-41, (2007)
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摘要
Acetates of 3beta-hydroxy-3'-methyl-1'(N)-acylandrost-5-eno[16,17-d]pyrazolines bearing monothiooxamide acyl groups were synthesized during the study of approaches to the synthesis of 3'-methylandrosteno[16,17-d]azoles, promising biologically active analogues of 20-keto pregnenanes, and their properties were investigated. The cyclization of delta16-20-thiooxamidohydrazones to the corresponding heterocycles was shown to proceed under rigorous conditions and to depend partially on the nature of the oxamide grouping.
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