Salt and crystal form of modified andrographolide compound and preparation method thereof
US11299482B2 · kind B2 · utility
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1References
7Claims
0Family size
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Key dates
| Filing date | May 24, 2018 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Sep 27, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/13
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a salt and crystal form of a modified andrographolide compound and a preparation method and pharmaceutical use thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.