Knowledge Center
Patent / Jan 01, 1976
16.beta.-Methyl-17-hydroxypregna-1,4,9(11)-triene-3,20-dione
Source:
GB 1397267
The title compd. I was prepd. from pregnanetrione II. Thus, ketalization of II using HOCH2CH2OH followed by redn. using KBH4 and then dehydration gave pregnene III. The Grignard reaction of III and MeMgBr followed by acid hydrolysis and bromination-dehydrobromination gave I.
Also in the Knowledge Center
/ Oct 24, 2024
Webinar - Advancements in DPI technologies for high and low dose drug delivery
Read more
Scientific Article
Scientific Article
/ Oct 23, 2023
Hot and Cold Formulation of Biologics for the Optimization of Drying Technologies
Read more
Scientific Article