## Abstract Starting with catalytic tritiation of 3‐methoxy‐estra‐1,3,5(10),8,14‐pentaen‐17B‐01 (1) the preparation of 17B‐hydroxy‐[14α,15α ‐^3^H] estra‐4,9‐dien‐3‐one (5) is described. The dienone (5) was obtained with a specific activity of 400 GBq/mmol and a radiochemical purity better than 96%.
Synthesis of high specific activity 17α-cyanomethyl-17β-hydroxy-[14α,15α-3H]estra-4,9-dien-3-one
✍ Scribed by P. Droescher; J. Röomer
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- French
- Weight
- 377 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
An improved synthesis of the tritium labelled form of the new pharmacon DIENOGEST is described. The [^14^α,15α‐^3^‐H]DIENOGEST was obtained with a specific activity of 51 Ci/mmol and a radiochemical purity > 98%.
📜 SIMILAR VOLUMES
## Crystal and Molecular Structures of Modified Progestagens (IV). 17a-Azidomethyl-17@-hydroxy-estra-4,9-dien-3-on~, Cl&lehNsOe The crystal and molecular structure of 17a-azidomethyl-17b-hydroxy-estre-4,9-dien-3-one has been determined by X-ray structure analysis. It crystallizes in the orthorhor
The synthesis of a new progestomimetic steroid, analogous to the cetaloxopromegestone precursor of Trimegestone has been carried out in eight steps from 9α-hydroxyandrost-4-
## Abstract The title compounds, each of high isotopic purity, were synthesized as internal standards for the mass spectral quantitation of estradiol and estrone. The [^2^H~3~] estradiol **3** was obtained from estrone (**1**) by alkaline H/^2^H exchange of the C‐16 protons and LiAl^2^LH~4~ reducti