An a-nor-3-thia-5β-pregnane
✍ Scribed by Christopher M. Cimarusti; Frederick F. Giarrusso; Paul Grabowich; Seymour D. Levine
- Book ID
- 118978133
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 195 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0039-128X
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## Abstract Coupling constants and nuclear Overhauser effect measurements were used to establish the C‐20 configuration and the conformation about the C‐17C‐20 bond in a series of sixteen C‐20‐substituted 5β,14β‐pregn‐14‐enes. In the 14β‐pregnane series the conformation of the C‐17 side‐chain is v
DURING recent years, a number of polyoxygenated C21 aglycones have been isolated from the ester-glycosides which are found in Asclepiadaceae plants. 2 On selenium dehydrogenation, some of these substances afforded the Jacobs hydrocarbon 2b,2e,3 which had been obtained from the Veratrum alkaloids,