Methods for the preparation of obeticholic acid and derivatives thereof
US10550146B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Apr 18, 2017 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Apr 18, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07J51/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present application relates to a safe method of preparing a bile acid derivative or a pharmaceutical acceptable salt, solvate, or amino acid conjugate thereof, on a large scale from 7-keto lithocholic acid (KLCA), comprising reacting Compound 2 with paraldehyde to form Compound 3 at a temperature between 10° C. and 30° C.:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.