Selected CGRP antagonists, processes for preparing them and...

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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C540S500000

Reexamination Certificate

active

07625886

ABSTRACT:
The present invention relates to the CGRP antagonists of general formula Iwherein R1, R2, R3and R4are defined as in claim1, the tautomers, the isomers, the diastereomers, the enantiomers, the hydrates thereof, the mixtures thereof and the salts thereof and the hydrates of the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases, as well as those compounds of general formula I wherein one or more hydrogen atoms are replaced by deuterium, pharmaceutical compositions containing these compounds, their use and processes for preparing them.

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