Preparation of sufentanil citrate and sufentanil base
US10227335B2 · kind B2 · utility
2Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 2016 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | May 25, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/412
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Provided herein are processes for forming sufentanil citrate from sufentanil base. One process comprises forming sufentanil citrate in the presence of a polar non-aqueous solvent. Other processes comprise forming sufentanil citrate in the presence of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.