Patent · US Active

Methods for onapristone synthesis dehydration and deprotection

US11613555B2 · kind B2 · utility

0Cited by
24References
22Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 28, 2020
Grant dateMar 28, 2023
Priority date—
Expiry dateSep 28, 2040

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07J21/006
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Methods and systems for making onapristone (ONA) using acidic hydrolysis and dehydration with sulfuric acid in an alcoholic solution are provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.