C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 307/87 (2006.01) C07B 57/00 (2006.01)
Patent
CA 2470225
The invention relates to a method for the preparation of escitalopram by cyanation of optically active intermediates of the formulas (III) and (II) below, and the preparation of such intermediates by optical resolution.
Cette invention se rapporte à un procédé servant à la préparation d'escitalopram par cyanation d'intermédiaires optiquement actifs représentés par les formules (III) et (II), ainsi qu'à la préparation de ces intermédiaires par résolution optique.
Ahmadian Haleh
Petersen Hans
Goudreau Gage Dubuc
H. Lundbeck A/s
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