Patent · US Expired

Optically active 5H-pyrrolo[3,4-b]pyrazine derivative, its preparation and pharmaceutical compositions containing it

US6864257B2 · kind B2 · utility

19Cited by

9References

7Claims

0Family size

Assignee

Sepracor, Inc. · US

Inventors

Claude Cotrel · Paris, FR
Gerard Roussel · Ris-Orangis, FR

Key dates

Filing date	Jul 23, 2002
Grant date	Mar 8, 2005
Priority date	—
Expiry date	Mar 7, 2023

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P25/20
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Dextrorotatory isomer of 6-(5-chloro-2-pyridyl)-5-[(4-methyl-1-piperazinyl)carbonyloxy]-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazine, its preparation and pharmaceutical compositions containing it which are usable as tranquillisers and hypnotics.

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