Serum levels of unconjugated estetrol-(1,3,5(10)-estratrien 1,15α,16α,17β-tetrol) during human pregnancy
✍ Scribed by M.E. Giebenhain; G.E. Tagatz; E. Gurpide
- Book ID
- 118924380
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- English
- Weight
- 489 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0022-4731
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## Abstract The preparation of the tritium labelled fetal metabolite estra‐1, 3, 5 (10)‐3, 15α, 16α, 17β‐tetrol 6,7‐^3^H is described. The material was prepared by oxidation of the tetrol tetraacetate lb to the 6‐keto derivative II. Reduction of the 6‐ketone to the 6‐hydroxy compound III and dehydr
A new metabolite derived from estradiol and considered to be exclusively fetal in origin was obtained from neonatal and pregnancy urine by Hagen et al' and Gurpide et a12. The compound contained four acylable hydroxy functions and formed an acetonide derivative. One tentative structure suggested was