Synthesis in the diazasteroid group. XII Syntheses of the 10, 17??diazasteroid and 10??aza??17??thiasteroid systems
H Takahata, M Hara, A Tomiguchi…
Index: Takahata; Hara; Tomiguchi; et al. Journal of Heterocyclic Chemistry, 1980 , vol. 17, # 2 p. 403 - 404
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Abstract
Abstract Upon desulfurization with Raney Ni, the condensed heterocycles 2a, b prepared by cyclization from β-ketosulfoxides 1a, b gave β-ketones 3a, b, which were condensed with 2- carbethoxymethyl-piperidine 4 to afford the 10, 17-diazasteroid 6 and the 10-aza-17- thiasteroid 7, respectively.
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