The synthesis of the two stereoisomeric diepoxyketones 9 and 22, and of the tetrols 7 and 20 is described. Compound 7 contains the ring-A-trio1 partial structure characterising some naturallv occurring cardiac glycosides. ## Im Zusammenhang mit Untersuchungen uber die photochemische Isomerisierun
✦ LIBER ✦
Steroide und Sexualhormone. 252. Mitteilung [1]. Chiroptische Eigenschaften einiger an C(5) stereoisomerer 3-Oxo-4,4-dimethyl-steroide
✍ Scribed by Günther Snatzke; Walter Graf; Hans-Rudolf Schlatter; Christoph Lüthy
- Publisher
- John Wiley and Sons
- Year
- 1974
- Tongue
- German
- Weight
- 321 KB
- Volume
- 57
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The chiroptical properties of the C(5)‐epimeric 4,4‐dimethyl‐steroidderivatives 6, 7 and 8, recently prepared [1], are reported.
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## Abstract Starting from 19‐hydroxytestosteroneacetate (**1**) a high yield preparation of 3‐oxo‐4,4‐dimethyl‐19‐hydroxy‐5α‐steroids (__e.g.__ **7, 9, 13** and **33**) is described.