C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 403/06 (2006.01)
Patent
CA 2561203
The invention relates to a new process for the preparation of pyrazine derivatives of formula (I), which are useful as intermediates for the preparation of liquid crystalline media components or of pharmaceutically active substances.
L'invention concerne un procédé de préparation de dérivés de pyrazine de formule (I), lesquels sont utiles comme intermédiaires destinés à la préparation de composants de milieu cristallin liquide ou de substances actives sur le plan pharmaceutique.
Ege Markus
Jenni Wolfgang
von Hirschheydt Thomas
Voss Edgar
F. Hoffmann-La Roche Ag
Gowling Lafleur Henderson Llp
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