Crystal form of orexin receptor antagonist compound, and preparation method and application thereof
US10668066B2 · kind B2 · utility
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Key dates
| Filing date | Aug 11, 2016 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | Aug 11, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D451/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Disclosed are a preparation method of an orexin receptor antagonist compound 5-3, Crystalline forms I-IV of an orexin receptor antagonist compound 5-3 are provided. Also provided are processes of the preparing the orexin receptor antagonist compound 5-3 and its crystalline forms, as well as methods of using the crystalline forms I-IV for treating an orexin-related disease.
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