Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2006-04-11
2006-04-11
Richter, Johann (Department: 1621)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Heterocyclic carbon compounds containing a hetero ring...
C514S342000, C514S365000, C514S408000, C546S269100, C546S332000, C548S203000, C548S566000, C544S215000, C544S241000
Reexamination Certificate
active
07026307
ABSTRACT:
The present invention relates to a process for the preparation of compounds of the formula (I)by reacting compounds of the formula (II)in whichR1, R2, R4and Het are as defined in the description, with anhydrous hydrogen halide in the presence of a nitrile.
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Heyn Armin
Laak Kai van
Sirges Wolfram
Stölting Jörn
Taschner Torsten
Bayer CropScience AG
Harmuth Raymond J.
Henderson Richard E. L.
Nwaonicha Chukwuma
Richter Johann
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