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Preparation of 9α, 11ξ-tritiated 17α-ethynylestradiol, mestranol, estradiol-17β, and norethindrone

✍ Scribed by P.Narasimha Rao

Book ID
118977632
Publisher
Elsevier Science
Year
1971
Tongue
English
Weight
565 KB
Volume
18
Category
Article
ISSN
0039-128X

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✍ Howard Parnes; Emma J. Shelton 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 French ⚖ 379 KB

## Abstract We report herein the first __high specific activity__ tritium labelled synthesis of the widely used oral antifertility agents ethynylestradiol (5) and norethindrone (9). These substances were prepared at a specific activity of 54 Ci/mmol, a figure which is 48 and 377 times greater than