Crystal form of compound and fumaric acid, pharmaceutical composition and method for treating coronavirus-induced diseases
US11655240B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 12, 2022 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Oct 12, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/13
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present disclosure provides a crystal form of a compound and fumaric acid, an active pharmaceutical ingredient and a pharmaceutical composition containing the same, and a method for treating coronavirus-induced diseases a using the same. In particular, the crystal form of the present disclosure comprises the compound of Formula (I) and fumaric acid, and the X-ray powder diffraction pattern of the crystal form obtained using Cu-Kα radiation includes at least three peaks selected from the group consisting of: 0.94°±0.2° 2θ, 19.06°±0.2° 2θ, 23.50°±0.2° 2θ, and 24.66°±0.2° 2θ. The crystal form of the present disclosure has a high purity, good stability, and a high melting point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.