Pyridazinone hydrochloride compound and method for producing the same
AssigneeNissan Chemical Industries, Ltd.
InventorsTakashi Horiuchi, Sachiko Matsumoto, Hiroo Matsumoto, Minako Kamikawaji
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Abstract
The present invention relates to a 3/2-hydrochloride of 4-chloro-5-[3-(4-benzylpiperazin-1-yl) carbonylmethoxy-4-methoxybenzylamino]-3(2H)-pyridazinone, and also relates to a method for producing the 3/2-hydrochloride of 4-chloro-5-[3-(4-benzylpiperazin-1-yl)carbonylmethoxy-4-methoxy-4-methoxybenzylamino]-3(2H)-pyridazinone which comprises crystallizing in an alcohol type solvent or an alcohol type-ester type mixture solvent in the presence of hydrogen chloride and water.
Claims13
3/2-Hydrochloride of 4-chloro-5-[3-(4-benzylpiperazin-1-yl)carbonylmethoxy-4- methoxybenzylamino]-3(2H)-pyridazinone.
Dependencies are inferred from the claim text.