Optically active 5H-pyrrolo[3,4-b]pyrazine derivative, its...

Details Optically active 5H-pyrrolo[3,4-b]pyrazine derivative, its... Optically active 5H-pyrrolo[3,4-b]pyrazine derivative, its...

2005-03-08

2005-03-08

Berch, Mark L. (Department: 1624)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

06864257

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.

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