Halogenated pyrazolo [1,5-a]pyrimidines, processes, uses as...

C - Chemistry – Metallurgy – 07 – D

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C07D 487/04 (2006.01) A61K 31/519 (2006.01) A61P 25/08 (2006.01) A61P 25/20 (2006.01) A61P 25/22 (2006.01) C07C 211/21 (2006.01)

Patent

CA 2612726

The invention provides novel halogenated pyrazolo[1,5-a]pyrimidines of formula (I) wherein R, R1, X and Y have different meanings, and pharmaceutically acceptable salts thereof. Compounds of formula (I) are useful for treating or preventing anxiety, epilepsy and sleep disorders including insomnia, and for inducing sedation-hypnosis, anesthesia, sleep and muscle relaxation. The invention also provides synthetic procedures for preparing said compounds and certain intermediates, as well as intermediates themselves.

La présente invention concerne de nouvelles pyrazolo[1,5-a]pyrimidines halogénées de formule (I) où R, R1, X et Y ont différentes significations, ainsi que des sels pharmaceutiquement acceptables de ceux-ci. Des composés de formule (I) sont utiles pour le traitement ou la prévention de l~anxiété, de l~épilepsie et des troubles du sommeil, y compris l~insomnie, et pour induire une hypnose par sédation, une anesthésie, le sommeil et une relaxation des muscles. L~invention concerne également des procédés de synthèse pour la préparation desdits composés et de certains intermédiaires, ainsi que les intermédiaires eux-mêmes.

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