Levorphanol prodrugs and processes for making and using them
US11234975B2 · kind B2 · utility
2Cited by
2References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2018 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Nov 8, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K45/06
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The presently described technology provides compositions of one or more of oxoacids, amino acids, polyethylene glycols, and/or vitamin compounds chemically conjugated to levorphanol ((−)-17-methylmorphinan-3-ol) to form novel prodrugs and compositions of levorphanol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.