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Steroide und Sexualhormone 243. Mitteilung [1] die partialsynthese von 3-o-methyl-20ξ-7, 8-dihydrobatrachotoxinin A

✍ Scribed by W. Graf; Frl. E. Gössinger; R. Imhof; H. Wehrli

Publisher
John Wiley and Sons
Year
1971
Tongue
German
Weight
352 KB
Volume
54
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

The synthesis of 3‐O‐methyl‐20ξ‐7, 8‐dihydrobatrachotoxinin A (12) is described.

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Steroide und Sexualhormone 242. Mitteilu
Steroide und Sexualhormone 242. Mitteilung [1] herstellung von 14β-hydroxy-20-keto-δ16-steroiden: Ein neuer ergiebiger zugang zu 3-O-methyl-17α, 20ξ-tetrahydrobatrachotoxinin A
✍ Frl. E. Gössinger; W. Graf; R. Imhof; H. Wehrli 📂 Article 📅 1971 🏛 John Wiley and Sons 🌐 German ⚖ 291 KB 👁 1 views

## Abstract A novel method for the reductive epoxide opening in a 14β, 15β‐epoxy‐20‐oxo‐Δ^16^‐pregnene **4** affords an almost quantitative yield of the 14β‐hydroxy‐20‐oxo‐Δ^16^‐pregnene **5.** This leads to a considerable improvement of the formerly published synthesis of 3‐O‐methyl 17 α, 20ξ‐tetr