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US 4,399,137 AGranted
6-Imidazol-1-yl-3-hydrazino-pyridazines, their preparation and antihypertensive use
AssigneeBASF SE
InventorsGerd Steiner, Josef Gries, Dieter Lenke
Life of this patent
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Abstract
6-Imidazol-1-yl-3-hydrazino-pyridazines, in which the imidazole ring is unsubstituted or is substituted by halogen or alkyl, their physiologically tolerated addition salts with acids, processes for their preparation and their use as drugs in the treatment of hypertonia.
Claims5
3-Hydrazino-6-(2-methyl-imidazol-1-yl)-pyridazine.
3-Hydrazino-6-(2-ethyl-imidazol-1-yl)-pyridazine.
3-(2-Isopropylidene-hydrazino)-6-(2-methyl-imidazol-1-yl)-pyridazine.
3-(2-Isopropylidene-hydrazino)-6-(2-ethyl-imidazol-1-yl)-pyridazine.
Dependencies are inferred from the claim text.