Method for improving the oxygen-releasing ability of hemoglobin to organs or peripheral tissues in human bodies and a medication thereof
US10047063B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2017 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Feb 9, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D493/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method for improving the oxygen-releasing ability of hemoglobin, hemoglobin variants, recombinant hemoglobin or hemoglobin-based blood substitutes to organs or peripheral tissues in human bodies is disclosed by administering a compound of phthalides to a subject in need thereof. The compound of phthalides is characterized by a phthalide functional group which is represented as Formula I, and forms at least one hydrogen bond with αArg141 of hemoglobin, hemoglobin variants, recombinant hemoglobin or hemoglobin-based blood substitutes, stabilizing the α1/α2 interface of hemoglobin, further stabilizing the oxygenated hemoglobin, hemoglobin variants, recombinant hemoglobin or hemoglobin-based blood substitutes in the low oxygen affinity “T” state and facilitating the oxygen release to the organs or the peripheral tissues. A medication for improving the oxygen-releasing ability of hemoglobin, hemoglobin variants, recombinant hemoglobin, or hemoglobin-based blood substitutes to organs or peripheral tissues in human bodies is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.