Therapeutic agent for spinal canal stenosis

Details Therapeutic agent for spinal canal stenosis Therapeutic agent for spinal canal stenosis

A - Human Necessities

61

K

A61K 31/501 (2006.01) C07D 401/12 (2006.01)

Patent

CA 2342198

A therapeutic agent for spinal canal stenosis is provided, which contains a pyridazinone compound of the formula (I) Image wherein R1, R2 and R3 are each independently a hydrogen atom or a lower alkyl, X is a halogen atom, a cyano or a hydrogen atom, Y is a halogen atom, a trifluoromethyl or a hydrogen atom, and A is a C1 - C8 alkylene optionally substituted with a hydroxyl, or its pharmacologically acceptable salt.

L'invention concerne des médicaments permettant de lutter contre la sténose du canal rachidien, qui contiennent des composés de pyridazinone représentés par la formule générale (I) ou leurs sels pharmaceutiquement tolérables. Dans cette formule, R<1>, R<2> et R<3> désignent chacun indépendamment les uns des autres hydrogène ou alkyle inférieur; X désigne halogéno, cyano ou hydrogène; Y désigne halogéno, trifluorométhyle ou hydrogène; et A désigne alkylène C1-C8 éventuellement hydroxylé.

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