Process to prepare tolterodine

Details Process to prepare tolterodine Process to prepare tolterodine

C - Chemistry, Metallurgy

07

D

C07D 311/20 (2006.01) C03C 14/00 (2006.01) C07C 215/54 (2006.01) G02B 6/30 (2006.01) G02B 6/34 (2006.01) G02B 6/42 (2006.01)

Patent

CA 2273789

Disclosed is a novel intermediate, 3,4-dihydro-6-methyl-4-phenyl-2H-benzopyran-2-ol of formula (IV) and an improved process for the preparation of tolterodine.

L'invention concerne un nouvelle composition intermédiaire, le 3,4-dihydro-6-méthyl-4-phényl-2H-benzopyrane-2-ol, de formule (IV) et un procédé amélioré de préparation de la toltérodine.

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