Crystal form of compound used as mineralocorticoid receptor antagonist and preparation method therefor
US9809589B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Dec 23, 2013 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Dec 23, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D215/60
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention belongs to the technical field of medicines, and relates to a crystal form of a compound used as a mineralocorticoid receptor antagonist and a preparation method therefor, and in particular, to a method for preparing a compound 2-chloro-4-[(3S,3aR)-3-cyclopentyl-7-(4-hydroxypiperidin-1-carbonyl)-3,3a,4,5-tetrahydro-2H-pyrazolo[3,4-f]quinolin-2-yl]benzonitrile of formula (1); a crystal form thereof, a preparation method for the crystal form, and the use of the crystal form in the preparation of drugs for the treatment and/or prevention of renal injury or cardiovascular diseases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.