(2S,4S)-4-fluoro-1-[4-fluoro-beta-(4-fluorophenyl)-L-phenylalanyl]-2-pyrrolidinecarbonitrile p-toluenesulfonic acid salt and anhydrous crystalline forms thereof
US7462641B2 · kind B2 · utility
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Key dates
| Filing date | Jul 19, 2004 |
| Grant date | Dec 9, 2008 |
| Priority date | — |
| Expiry date | Apr 28, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention includes anhydrous crystalline forms of (2S,4S)-4-fluoro-1-[4-fluoro-β-(4-fluorophenyl)-L-phenylalanyl]-2-pyrrolidinecarbonitrile p-toluenesulfonic acid salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.