Agents for preventing and/or treating higher brain dysfunctions

A - Human Necessities – 61 – K

Patent

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Details

A61K 31/522 (2006.01) A61P 25/28 (2006.01) C07D 473/06 (2006.01) C07D 473/12 (2006.01)

Patent

CA 2550130

A preventive and/or therapeutic agent for higher brain dysfunctions which contains as an active ingredient a xanthane derivative represented, for example, by the following formula (I) or a pharmacologically acceptable salt thereof: (I) (II) wherein R1, R2, and R3 are the same or different and each represents hydrogen, lower alkyl, lower alkenyl, or lower alkynyl; R4 represents cycloalkyl, -(CH2)n-R5, or the formula (II) given above; and X1 and X2 are the same or different and each represents oxygen or sulfur.

L'invention concerne un agent préventif et/ou thérapeutique pour des dysfonctionnements cérébraux sévères. Cet agent contient, en tant que principe actif, un dérivé de xanthane représenté, par exemple, par la formule (I) ou un sel pharmacologiquement acceptable de celui-ci. Dans cette formule, R?1¿, R?2¿ et R?3¿ sont identiques ou différents, et chacun représente: hydrogène, alkyle inférieur, alcényle inférieur ou alkynyle inférieur; R¿4? désigne cycloalkyle, -(CH¿2?)¿n?-R?5¿, ou l'agent de l'invention est représenté par la formule (II) donnée ci-dessus; et X?1¿ et X?2¿ sont identiques ou différents, et chacun représente oxygène ou soufre.

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