Crystals of quinolone derivatives
US12358891B2 · kind B2 · utility
0Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2020 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Sep 23, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/13
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present application relates to the field of medicine, and relates to crystals of quinoline derivatives, and in particular, to crystals of a quinoline derivative anhydride and a solvate, as well as a method for preparing the crystals, pharmaceutical compositions containing the crystals, and a use thereof in the field of medicine. The present application further provides a preparation method therefor, which has a high yield, has mild crystallization conditions, is suitable for industrial production, and may better meet the needs of the pharmaceutical industry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.