Method for producing 1,3-disubstituted 2-nitroguanidines

Details Method for producing 1,3-disubstituted 2-nitroguanidines Method for producing 1,3-disubstituted 2-nitroguanidines

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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