5HT2c receptor agonists

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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C544S346000

Reexamination Certificate

active

10876954

ABSTRACT:
The present invention provides piperazine derivatives of formula (I)as well as pharmaceutically acceptable salts and esters thereof, wherein R1to R5have the significance given in the description. They can be used for the treatment of obesity.

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