Synthesis p. 72 - 78 (1990)
Update date:2022-08-02
Topics:
Esser, Franz
Pook, Karl-Heinz
Carpy, Alain
The Pictet-Spengler reaction is utilized for the generation of 8,13,15-triazasteroids and related multicyclic compounds.The constitution of 7a is elucidated by NMR- and X-ray analysis.A second route to the triazasteroid ring system by Bischler-Napieralski type cyclization is disclosed.Synthetic alternatives as well as the variability in size and nature of rings A, B, C and D of the steroid-like skeletons are demonstrated.Synthesis covers 14 new tetra- and pentacyclic compounds on the basis of 9 novel ring systems.
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Doi:10.1039/c9ob00701f
(2019)Doi:10.1021/jo200014v
(2011)Doi:10.1002/recl.19921110206
(1992)Doi:10.1055/s-1992-26278
(1992)Doi:10.1002/ardp.19903230415
(1990)Doi:10.1021/jo051213f
(2005)
