Processes and intermediates for the preparation of...

Details Processes and intermediates for the preparation of... Processes and intermediates for the preparation of...

C - Chemistry, Metallurgy

07

D

C07D 417/14 (2006.01) C07D 275/04 (2006.01) C07D 295/155 (2006.01) C07D 417/04 (2006.01) C07D 417/12 (2006.01)

Patent

CA 2166203

A process for preparing the compound of formula (I) which comprises treating a compound of formula (II) wherein R2 is hydrogen, CN or CO2R1 and R1 is hydrogen or (C1-C6)alkyl with a reducing agent with the proviso that when R2 is CN or CO2R1 and R1 is (C1-C6)alkyl the product of the reduction is heated with an acid. Compounds of formula (II) wherein R2 is CN or CO2R1 and R1 is (C1-C6)alkyl or R2 is hydrogen and R1 is (C1-C6)alkyl or hydrogen. The compound of formula (VII) wherein R1 is (C1-C6)alkyl. The compound of formula (III). The compound of formula (I) is useful in the treatment of psychotic disorders.

L'invention se rapporte à un procédé de préparation du composé de la formule (I) qui consiste à traiter un composé de la formule (II), dans laquelle R2 représente hydrogène, CN ou CO2R1 et R1 représente hydrogène ou alkyle (C1-C6) avec un agent de réduction à condition que, lorsque R2 représente CN ou CO2R1 et R1 représente alkyle (C1-C6), le produit de la réduction soit chauffé avec un acide. L'invention concerne également: les composés de la formule (II), dans laquelle R2 représente CN ou CO2R1 et R1 représente alkyle (C1-C6) ou R2 représente hydrogène et R1 représente alkyle (C1-C6) ou hydrogène; le composé de la formule (VII), dans laquelle R1 représente alkyle (C1-C6); le composé de la formule (III). Le composé de la formule (I) est utile dans le traitement des troubles psychotiques.

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