Crystalline form a of 2, 2-bis(4-fluorophenyl)-2-phenylacetamide and preparation method therefor and application thereof
US12286389B2 · kind B2 · utility
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Key dates
| Filing date | Sep 28, 2021 |
| Grant date | Apr 29, 2025 |
| Priority date | — |
| Expiry date | Dec 18, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/13
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A crystalline form A of 2,2-bis(4-fluorophenyl)-2-phenylacetamide is provided. The crystalline form has good light stability, high temperature stability, and high humidity stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.