Process for the preparation of Ramipril
US6407262B1 · kind B1 · utility
1Cited by
2References
36Claims
0Family size
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Key dates
| Filing date | Nov 23, 2001 |
| Grant date | Jun 18, 2002 |
| Priority date | — |
| Expiry date | Nov 23, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D209/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for separating diastereomeric mixtures of compounds of formula 1 and formula 2 wherein R1=H or R1 denotes a carboxyl-esterifying group selected from C1-C6 alkyl and C7-C8 aralkyl, by treating the mixture of 1 and 2 with a solvent or mixture of solvents to obtain a substantially pure compound of formula 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.