Crystal form of ethyl (S)-3-(8-bromo-1-methyl-6-(pyridin-2-yl)-4H-benzo[f]imidazo[1,2-a][1,4]diazepin-4-yl)propanoate hydrochloride
US11708368B2 · kind B2 · utility
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22Claims
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Key dates
| Filing date | Feb 13, 2019 |
| Grant date | Jul 25, 2023 |
| Priority date | — |
| Expiry date | Sep 13, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/13
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides a crystalline form of a benzodiazepine derivative hydrochloride of Formula I or its ethanolate, wherein R is methyl or ethyl. The present invention also provides a method of preparing the crystal form of the compound of Formula I and a pharmaceutical composition comprising the crystal form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.