Indol derivatives for the treatment of migrane

C - Chemistry – Metallurgy – 07 – D

Patent

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C07D 403/12 (2006.01) A61K 31/395 (2006.01) C07D 209/16 (2006.01) C07D 401/12 (2006.01) C07D 413/12 (2006.01)

Patent

CA 2120028

A compound Or formula (I) wherein R1 and R2 each represents a hydrogen atom or an alkyl group, Z represents a ring selected from formula (II) in which n represents 4, 5 or 6; formula (111) and formula (IV) in which R1 represents hydrogen or an alkyl group and R4 represents an alkyl, methoxy, benzyl or R5NHCO group, R5 being an alkyl group; and Formula (V) in which R6 represents an alkyl group, and pharmaceutically acceptable salts thereof are useful in the treatment of migraine and other conditions. They are prepared by decàrboxylation of the corresponding indolyl-2-carboxylic acid.

L'invention concerne un composé de la formule (I) dans laquelle R1 et R2 représentent chacun un atome d'hydrogène ou un groupe alkyle, Z représente un noyau sélectionné à partir de la formule (II) dans laquelle n_ représente 4, 5 ou 6; de la formule (III), de la formule (IV) dans laquelle R3 représente hydrogène ou un groupe alkyle et R4 représente un groupe alkyle, méthoxy, benzyle ou le groupe R5NHCO, R5 étant un groupe alkyle; et de la formule (V) dans laquelle R6 représente un groupe alkyle. L'invention concerne également des sels pharmaceutiquement acceptables de ce composé utile dans le traitement de la migraine et d'autres états pathologiques. Ils sont préparés par décarboxylation de l'acide indolyle 2-carboxylique correspondant.

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