Merck Patent Gmbh

Heinz Hermann Bokel

Andreas Bathe

Ralf Knieriemen

Thomas Keil

Dieter Dorsch

Oliver Schadt

Frank Stieber

Christoph Saal

Clemens Kuehn

Axel Becker

Cristina Donini

Christoph Muermann

Compounds of the present invention concern 3-(1-{3-[5-(1-methyl-piperidin-4-ylmethoxy)-pyrimidin-2-yl]-benzyl}-6-oxo-1,6-dihydro-pyridazin-3-yl)-benzonitrile hydrochloride solvates and crystalline modifications thereof. The compound, 3-(1-{3-[5-(1-methyl-piperidin-4-ylmethoxy)-pyrimidin-2-yl]-benzyl}-6-oxo-1,6-dihydro-pyridazin-3-yl)-benzonitrile, has the following structural formula: The hydrochloride solvates and crystalline modifications thereof according to the invention are useful for treatment of physiological and/or pathophysiological conditions, such as cancer, that are caused, mediated and/or propagated by the inhibition, regulation and/or modulation of signal transduction of kinases, in particular by the inhibition of tyrosine kinases, especially Met-kinase. The present invention further relates to processes of manufacturing these crystalline modifications.

Polymorphic forms of 3-(1-{3-[5-(1-methyl-piperidin-4-ylmethoxy)-pyrimidin-2-yl]-benzyl}-6-oxo-1,6-dihydro-pyridazin-3-yl)-benzonitrile hydrochloride salt and processes of manufacturing thereof

The invention relates to a process for the preparation of 5-arylnicotinaldehydes by reduction of the corresponding 5-arylnicotinic acids by catalytic hydrogenation in the presence of carboxylic anhydrides in which the catalyst used is a palladium/ligand complex, characterized in that the molar ratio between palladium and ligand is from 1:5 to 1:15 in the case of monodentate ligands and from 1:2.5 to 1:7.5 in the case of bidentate ligands.

Method for producing 5-aryl nicotinaldehydes

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Darmstadt, Germany

Heinz Hermann Bokel