## Abstract 3α‐Hydroxy‐5α‐pregnane‐11,20‐dione‐2,2,3,4,4‐^2^H~5~ of 78% isotopic purity was prepared from 3α‐hydroxy‐5α‐pregnane‐11,20‐dione. The major impurity (10%) was 3α‐hydroxy‐5α‐pregnane‐11,20‐dione‐2,2,4,4‐^2^H~4~. 3α,21‐Dihydroxy‐5α‐pregnane‐11,20‐dione‐2,2,3,4,4‐^2^H~5~ 21‐acetate of 76%
Synthesis of 5α-pregnane-3β,20α-diol and of 5α-pregnane-3α,20α-diol labelled specifically at the 20β-position
✍ Scribed by T. A. Baillie; J. E. Herz; J. Sjövall
- Publisher
- John Wiley and Sons
- Year
- 1974
- Tongue
- French
- Weight
- 241 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0022-2135
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✦ Synopsis
Abstract
A convenient synthesis of 5α‐[20β‐^2^H]pregnane‐3α,20α‐diol and 5α‐[20β‐^2^H]pregnane‐3β,20α‐diol from 3β‐hydroxy‐5α‐pregn‐16‐en‐20‐one is described. The reaction products are characterized by combined gas chromatography‐mass spectrometry.
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1997 structure structure (organic substances) K 9000 46 -038 (20S)-6β-Methoxy-20-(p-toluenesulfonyloxymethyl)-3α,5-cyclo-5αpregnane.
## Abstract In order to fully understand the metabolic transformations of adrenocortical steroids, labelled 3α, 11β 17α,211‐tetrahydroxy‐5α‐pregnan‐20‐one, Reichstein's Compound C was required. Starting from hydrocortisone, the synthesis of [1−^3^H]‐Reichstein's Compound C has been accomplished.
## Abstract A procedure for the biosynthetic preparation of 3α‐hydroxy‐5α‐[1,2,6,7‐^3^H]‐pregnan‐20‐one (^3^H‐HPO) with high specific activity convenient for binding studies was developed. ^3^H‐HPO was synthesized from [1,2,6,7‐^3^H]progesterone using a microsomal preparation from rat liver and NAD