Patent · US Active

Processes for making hydrocodone, hydromorphone and their derivatives

US9657028B2 · kind B2 · utility

0Cited by

2References

22Claims

0Family size

Assignee

Johnson Matthey Public Limited Company · GB

Inventors

Saroop Singh Matharu · Shirley, US
Ewart Grant · Woburn, US
Brian Heinrich · Fitchburg, US

Key dates

Filing date	Jan 22, 2016
Grant date	May 23, 2017
Priority date	—
Expiry date	Jan 22, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D489/04
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Improved processes for making hydrocodone and hydromorphone as well as their 8,14-dihydrothebaine and 8,14-dihydrooripavine derivatives and salts are disclosed.

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