Patent · US Expired

2-oxo-1-pyrrolidine derivatives, process for preparing them and their uses

US6858740B2 · kind B2 · utility

4Cited by

1References

7Claims

0Family size

Assignee

UCB Farchim SA · CH

Inventors

John Surtees · Jezus-Eik, BE
Violeta Marmon · Woodstock, GB
Edmond Differding · Binningen, CH
Vincent Zimmermann · Brussels, BE

Key dates

Filing date	Jul 1, 2003
Grant date	Feb 22, 2005
Priority date	—
Expiry date	Jan 22, 2024

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D495/04
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The invention concerns 2-oxo-1-pyrrolidine derivatives and a process for preparing them and their uses. The invention also concerns a process for preparing α-ethyl-2-oxo-1-pyrrolidine acetamide derivatives from unsaturated 2-oxo-1-pyrrolidine derivatives. Particularly the invention concerns novel intermediates and their use in methods for the preparation of S-α-ethyl-2-oxo-1-pyrrolidine acetamide.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.