Synthesis of 3-ethoxy-4-ethoxycarbonyl phenyl acetic acid, a key acid synthon of repaglinide
US6686497B1 · kind B1 · utility
1Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2002 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Sep 20, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/313
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a new and industrially advantageous process for the preparation of 3-ethoxy-4-ethoxy-carbonyl-phenyl acetic acid. This compound is a key intermediate for the synthesis of Repaglinide, an oral hypoglycemic agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.