Process for preparing (1r,2s,4r) -(-)-2-[(2'-...

Details Process for preparing (1r,2s,4r) -(-)-2-[(2'-... Process for preparing (1r,2s,4r) -(-)-2-[(2'-...

C - Chemistry, Metallurgy

07

C

C07C 213/02 (2006.01) C07C 217/12 (2006.01) C07C 217/02 (2006.01)

Patent

CA 2373193

The invention relates to a process for preparing (1R,2S,4R) -(-)-2-[(2'- {N,N- dimethylamino} -ethoxy)] -2-[phenyl] -1,7,7-tri- [methyl] -bicyclo [2.2.1] heptane and pharmaceutically acceptable acid addition salts thereof with higher yields and higher grades of purity.

La présente invention concerne un processus de préparation de (1R,2S,4R) -(-)-2[(2'- {N,N-diméthylamino} -éthoxy)] -2-[phényle] -1,7,7-tri- [méthyle] -bicyclo [2.2.1] heptane et des sels d'addition acides pharmaceutiquement acceptables de ceux-ci avec de hauts rendements et un degré de pureté élevé.

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