Process for preparing...

Details Process for preparing... Process for preparing...

C - Chemistry, Metallurgy

07

D

C07D 495/14 (2006.01) C07D 495/04 (2006.01)

Patent

CA 2442139

The present invention relates to an improved process for preparing 6-aryl-4H-s- triazolo[3,4-c]-thieno[2,3-e]-1,4-diazepines of formula I, (see formula I) wherein R1 to R3 have the meanings given in claim 1, as well as new intermediate products involved in this process.

La présente invention concerne un procédé amélioré de fabrication de 6-aryl-4H-s-triazolo[3,4-c]-thiéno[2,3-e]-1,4-diazépines de la formule (I) dans laquelle R<1> à R<3> ont la signification donnée dans la première revendication, ainsi que de nouveaux intermédiaires produits avec le procédé selon l'invention.

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