2-oxo-1-pyrrolidine derivatives, process for preparing them...

Details 2-oxo-1-pyrrolidine derivatives, process for preparing them... 2-oxo-1-pyrrolidine derivatives, process for preparing them...

2005-02-22

2005-02-22

Desai, Rita (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C548S146000, C548S253000, C549S059000, C549S473000, C546S276400, C502S150000

Reexamination Certificate

active

06858740

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.

REFERENCES:
patent: 4997955 (1991-03-01), Merger et al.
patent: 92 031 (1972-08-01), None
patent: 0 162 036 (1985-11-01), None
Goodall et al., Tetrahedron, NL, Elsevier Science Publishers, Amsterdam, vol. 52, No. 19, pp. 6739-6758 (1996).
Xingshu Li et al., Tetrahedron: Asymmetry, vol. 10, pp. 3863-3867 (1999).
Prous, Drugs of the Future, ES, Barcelona, vol. 19, No. 2, pp. 111-113 (1994).

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