Knowledge Center

Patent / Jan 01, 1973

16.beta.-Methyl-17.alpha.-hydroxypregna-1,4,9(11)-triene-3,20-dione

Authors:
  • Ivan Villax
Source:
US 3761498

Pregnatrienedione I was prepd. from pregnanone II by KBH4 redn. followed by successive dehydration, methylation, bromination, and debromination.

Also in the Knowledge Center

Related Content

Certificate of Suitability (CEP)

EP Certificates - Granted by EDQM

Page
Read more

HPAPI – Highly Potent API

Our service for HPAPIs ranges from Drug Substance to Particle Engineering.

Page
Read more

Hovione’s people-first approach recognized as it achieves Top Employer certification for the fourth consecutive year

Press Release / Jan 20, 2026
Article
View